Claims:CLAIMS

We claim;
1.A water purification and alkaline system with TDS on demand comprising; a low pressure switch (A), a carbon filter (C), a sediment filter (B), a solenoid valve (D1), a booster pump (E1), a reverse osmosis (RO) system which comprises RO membrane, reject water pipe and flow restrictor (G), a Ultra Filtration (UF) membrane, a flow control valve (J), a purified water storage tank (K), a float valve(T), a Ultra violet (UV) module, a total dissolved salts (TDS) sensor (M), a circulator pump (E2), a switch mode power supply (SMPS), and a micro controlled board (R) which comprises a push button (Q), a TDS indicator and an indicator showing active purification system, wherein user can select minimum and maximum value of TDS characterized in that, the storage tank (K) is connected with system comprising a dispensing pump (E3), a solenoid valve (D3) for alkaline water, solenoid valve (D4) for purified water, alkaline system module (O1, O2) and optional solenoid valve (D5) at the outlet (W) of the system.

2. The water purification and alkaline system with TDS on demand as claimed in claim 1, wherein alkaline system module is selected from ionizer plate (O1) or alkaline mineral cartridge (O2).

3. The water purification and alkaline system with TDS on demand as claimed in Claim 2, wherein alkaline mineral cartridge is comprising spherical balls made up of homogenous materials selected from Mg, MgO, SiO2, Al2O3, Na2O, CaO, Fe2O3, K2O, FeO or combinations thereof.

4. The water purification and alkaline system with TDS on demand as claimed in claim 3, wherein the alkaline mineral cartridge comprises the spherical balls of MgO.

5. The water purification and alkaline system with TDS on demand as claimed in Claim 2, wherein ionizer plates are of platinum coated Titanium having 99.99% purity.

6. The water purification and alkaline system with TDS on demand as claimed in Claim 2, wherein ionizer plates have auto cleaning features.

7. The water purification and alkaline system with TDS on demand as claimed in claim 1, wherein the system can be operated in manually or automatically.

8. The water purification and alkaline system with TDS on demand as claimed in claim 1, wherein system has service indicator display (S1) which gives alert for service due.

9. The water purification and alkaline system with TDS on demand as claimed in claim 1, wherein system has TDS and flow indicator display (S2) which gives the values of TDS of input water and output water along with the input and output flow of water.

10. The water purification and alkaline system with TDS on demand as claimed in claim 1, wherein the purified water stored in storage tank gets circulated through ultra filtration (UF) or Ultra violet (UV) module to prevent any recontamination of water stored in storage tank.

Dated this 26th day of April, 2020 , Description:FORM 2
THE PATENTS ACT, 1970
(39 OF 1970)
&
The Patents Rules, 2003
COMPLETE SPECIFICATION
(See section 10; rule 13)

1. Title of the invention: A WATER PURIFICATION AND ALKALINE SYSTEM WITH TDS ON DEMAND

2. Applicant(s)
(a) NAME:ORG ENGITECH LTD
(b) NATIONALITY:INDIAN
(c) ADDRESS:1009/P, B/H KASHI PACK CARE, OPP TECHFLOW, KUBADTHAL, KATHWADA-SINGARVA, AHMEDABAD-382340, GUJARAT, INDIA

3. PREAMBLE TO THE DESCRIPTION

The following specification describes the nature of this invention and the manner in which it is to be performed

A WATER PURIFICATION AND ALKALINE SYSTEM WITH TDS ON DEMAND

This application is the patent of addition of Indian patent application 201721018341 filed on 25thJuly, 2017.

FIELD OF THE INVENTION

The present invention relates to a water purification and alkaline system with TDS (Total Dissolved Salts) on demand with indication in a single system. The present invention provides facility to select lower and upper limit of TDS in output water and based on level of TDS in output water and also have feature to provide only purified water or purified alkaline water in single system.

BACKGROUND OF THE INVENTION

In todays’ world, it is becoming very common to have water purifier at home, office and other workplace a drinking water resource. In water purifier, the most common is Reverse Osmosis (RO) technology. There are other technologies like UV (Ultra Violet) treatment and Ultra Filtration, Nano filtration and many more are also in use alone or in combination with RO System.

Reverse osmosis (RO) is the mostly used method for water purification and is capable of removing 90% to 99% of all contaminants. RO membranes are capable of rejecting practically all particles, Total dissolved solids, bacteria and organics >300 daltons molecular weight (including pyrogens). In fact, reverse osmosis technology is used by most leading water bottling plants.

Natural osmosis occurs when solutions with two different concentrations are separated by a semi-permeable membrane. Osmotic pressure drives water through the membrane; the water dilutes the more concentrated solution; and the end result is equilibrium.

RO technique also involves an ionic exclusion process where only solvent is allowed to pass through the semi-permeable RO membrane, while virtually all ions and dissolved molecules are retained (including salts and sugars). The semi-permeable membrane rejects dissolved solids (ions) by a charge phenomena action: the greater the charge, the greater the rejection. Therefore, the membrane rejects nearly all (>99%) strongly ionized polyvalent ions but only 95% of the weakly ionized monovalent ions like sodium.

However, RO system is also having certain disadvantages which are to be considered while using. First is as the RO system rejects very large % of contaminants, it also removes many minerals which are part of water composition presents in water and desired for normal body health.

Using RO, if input water itself has low TDS which result in drastic reduction in TDS and consumption of such very low TDS water is not safe. Further disadvantage of RO system is the higher rate of rejection which is almost 80% of water get rejected and gets wasted.

Second used technique is of Ultraviolet (UV) light which Destroys 99.99% of microorganisms and like RO system does not waste any water. However UV do not reduces TDS of input water. If input water is having higher TDS, the output result will also have almost same TDS level, which is not safe for consumption. Similarly Ultra filtration (UF) also not able to reduce TDS and input water with high TDS will provide water with high TDS only.

Generally people may prefer RO technology based water purifier when input TDS of water is High & prefer UV or UF technology based water purifier when TDS of input water is low.

Hence it is very difficult to decide the water purification process when the input water quality is not stable and may vary or fluctuate from time to time based on weather condition, water shortage or many other factors. In such case if a water purification system is installed with initial TDS value of input water, later on if TDS of input water get changed drastically, the installed water purification system will not deliver water with consistent quality and TDS. Sometime it may reduce TDS drastically keeping water unsafe to drink and on other hand if UV system or UF system is installed considering acceptable TDS value of input water, later if TDS is increased very high, the output value of TDS will also remain very high keeping it unsafe to drink.

Thus considering above situation, below are the major concerns of the current time;
1. In case of input raw water TDS is low in RO technology; output water will have very low TDS which is not for good health.
Example: if input TDS of water is 100 ppm, output or purifier water TDS may be 1 to 5 ppm.
2. In case of input water TDS is low, through UV or UF technology; output water will have same TDS of input water and which is not good in taste sometime. End user can not set TDS of purified water as per end users’ desire.
Example: If TDS of input water is 490 ppm; output or purifier water through UV or UF system will be same as 490 ppm.

3. In case of input raw water TDS is high and UV or UF technology is used, the output water will be of high TDS which unsafe to drink or use.
Example: If TDS of input water is 1500 ppm; output water TDS same as 1500 ppm which is unsafe to drink or use.

4. In case of input raw water is high and RO technology used, around 98% TDS removed which is not necessary to remove too much TDS. In this case end user can not control output TDS as per end users’ desire.
Example: If TDS of input water 700 ppm, output or purified water TDS will be 10 to 50 ppm which less. End user want to drink 125 ppm TDS, not possible in any existing system.

5. In case of input raw water TDS is low in RO technology, 80% wastage of water while ideally RO system is not required

Indian patent application 1808/CHE/2014 provides an integrated water quality sensor device for providing quality parameters of input water. However, there is no any disclosure about checking quality parameter of output or purified water and also there is no any system to select desired TDS level of output water.

Further now there is huge market demand of alkaline water by consumers. Alkaline water concept was initially evolved in Japan in 1960 through research on the possible therapeutic benefits of alkaline ionized water. The research in Japan focused on using electronic devices to split water into alkaline and acidic streams. As the benefits of alkaline ionized water began to be appreciated, manufacture of water ionizers greatly increased. Alkaline ionic water is made by using a water ionizer to split electrically filtered tap water or purifier water into alkaline ionic water and acid water, each of which then feeds into a separate chamber. One chamber contains the alkaline water that has been found to be so enriching to human health and wellness. The second chamber contains the acid water, which has remarkable uses as well.

Alkaline drinking water is known to have certain health benefits, including antioxidant properties. This has been demonstrated by a number of laboratory studies, including a study by Shirahata et al, entitled “Electrolyzed-Reduced Water Scavenges Active Oxygen Species and Protects DNA from Oxidative Damage”, Biochem. Biophys. Res.Commun., 234, Pages 269-274 (1997). Other studies have confirmed such findings of antioxidant properties and other health benefits of alkaline water.

US4289599A describes an apparatus for producing alkaline water and acidic water which includes a container which houses an electrolytic cell, said electrolytic cell containing a lower chamber provided with a water inlet zone and a water outlet zone, and an upper chamber containing anode plates and cathode plates disposed in a spaced apart predetermined relationship, inlet means for introducing water into the water inlet zone of the lower chamber of said electrolytic cell, said inlet means including valve means, first and second outlet means disposed at the upper end portion of the upper chamber for removing alkaline water and acidic water respectively, therefrom, said first outlet means provided with means for discharge from the apparatus, and said second outlet means provided with means for communicating with the water outlet zone for discharge from the apparatus, and electrical means for providing the necessary electrical power to the apparatus.

ENAGIC® has been a pioneer and innovator in alkaline water ionization technologies. By integrating scientific research with superior Japanese craftsmanship Enagic's Kangen Water® systems enhance nature's most vital life source, water, around the world.

There are many other products and devices available in market which produces alkaline water as mentioned above.

Currently the Japan and Korea are main producer of such device and distributing in whole world. However, there are many problems or drawbacks of such devices as listed below;

- Cost of such device is very high and is not affordable to normal people in developing countries.
- Maintenance cost is also high.
- Input water must be purified water. It require water purifier before Alkaline device.
- It doesn’t work with raw water or tap water.
- Input water for such device should have certain TDS to obtain an optimum performance.
- Input water should be supplied with certain pressure. It require pressure system between input water storage and Alkaline device.

Hence, one need Three system as one is water Purifier, second is alkaline device and third is as pressure pump system to supply water with pressure in to alkaline device.

Considering above problems, it is not widely used in developing countries.

Further, there is no any device available which can combine the Three system in one and overcomes problems mentioned above in one single system which can provide water with TDS value as desired with alkaline water.

Thus, there is a very urgent need in the society to provide a water purification system which can provide consistent water quality with desired TDS irrespective of input water quality or TDS level of input water with features of generating alkaline water at affordable price in a single system.

Inventor of the present invention have surprisingly found a solution to overcome problem mentioned above along with few more added features as described herein in the specification.

OBJECT OF THE INVENTION
The principle object of present invention is to overcome the aforementioned drawbacks and limitation associated with prior inventions by providing an improved water purification system which generates water as per required TDS value and also have option to generate alkaline water.

Another object of the present invention is to overcome the issue of high price of the system and maintenance.
Another object of the present invention is to provide the single system for purified water of desired TDS as well as of alkaline water.

Yet another object of the present invention is to overcome the requirement of additional pressure pump for generating alkaline water.

One another object of present invention is to provide system which have option for user to drink only purified water or purified and alkaline water in single system.

Yet another object of the present invention is to overcome the requirement of having two system like water purifier as well as alkaline device to get alkaline water.

One another object of present invention is to provide system which is affordable and with low maintenance cost.

SUMMARY OF THE INVENTION

This summary is provided to introduce a selection of concepts in a simplified form that are further disclosed in the detailed description of the invention. This summary is not intended to identify key or essential inventive concepts of the claimed subject matter, nor is it intended for determining the scope of the claimed subject matter.

The present invention relates to a water purification and alkaline system with TDS on demand with indication in a single system.

The main object of the present invention is to provide a water purification and alkaline system with TDS on demand comprising; a low pressure switch (A), a carbon filter (C), a sediment filter (B), a solenoid valve (D1), a booster pump (E1), a reverse osmosis (RO) system which comprises RO membrane, reject water pipe and flow restrictor (G), a Ultra Filtration (UF) membrane, a flow control valve (J), a purified water storage tank (K), a float valve(T), a Ultra violet (UV) module, a total dissolved salts (TDS) sensor (M), a circulator pump (E2), a switch mode power supply (SMPS), and a micro controlled board (R) which comprises a push button (Q), a TDS indicator and an indicator showing active purification system, wherein user can select minimum and maximum value of TDS characterized in that, the storage tank (K) is connected with system comprising a dispensing pump (E3), a solenoid valve (D3) for alkaline water, solenoid valve (D4) for purified water, alkaline system module (O1, O2) and optional solenoid valve (D5) at the outlet (W) of the system.

Yet another aspect of the present invention is to provide a water purification and alkaline system, wherein alkaline system module is selected from ionizer plate or alkaline mineral cartridge.

DETAILED DESCRIPTION OF THE DRAWING

FIG.1: Flow diagram of water purification and alkaline system with alkaline mineral cartridge.
FIG.2: Flow diagram of water purification and alkaline system with ionizer plate.

DETAILED DESCRIPTION OF THE INVENTION
The invention comprises an addition of the invention claimed in the specification of the main patent application number 201721018341 earlier which claims a water purification system which provides consistent water with desired TDS level irrespective of TDS level of input water.

The present invention with improved feature is about a water purification system which generates water as per required TDS value and also have option to generate alkaline water.

The water purification and alkaline system with TDS on demand as per present invention is provided to overcome problems in current water purification system used for house hold purpose as well as commercial purpose.

The main embodiment of the present invention provides a water purification system with TDS on demand comprising a low pressure switch, a carbon filter, a sediment filter, a solenoid valve, a booster pump, a reverse osmosis (RO) system which comprises RO membrane, reject water pipe and flow restrictor, a Ultra Filtration (UF) membrane, a flow control valve, a purified water storage tank, a float valve, a Ultra violet (UV) module, a total dissolved salts (TDS) sensor, a circulator pump, a dispensing pump, a switch mode power supply (SMPS) of 24V and 7V, and a micro controller boards for whole system and an additional microcontroller board for an ionizer plate which comprises a push buttons, a service hour indicator, a TDS and flow indicator and an indicator showing active purification system, wherein user can select minimum and maximum value of TDS in purified water so that if TDS value of output or purified water goes below set minimum value, the system will avoid flow of water in reverse osmosis (RO) system and pass through ultra filtration (UF) or Ultra violet (UV) module only and if TDS value of output or purified water goes above set maximum value, the system will directs water through reverse osmosis (RO) system and avoid ultra filtration (UF) or Ultra violet (UV) module and stored in the storage tank. If the user required only purified water in that case the dispensing pump through the solenoid valve pumps to the outlet of the purifier system. If the user required alkaline water in that case the dispensing pump through solenoid valve pumps the purified water into the ionizer plate or in the alkaline mineral cartridge.

The term “TDS” as used herein can be interpreted as Total Dissolved Solid or Total Dissolved Salts and boy should convey the same meaning as total dissolved salt.

As per present invention “output water” and “purified water” means the water coming out from purification system to the purified water storage tank and both the terminology conveys the same meaning.

The water purification system of the present invention is shown in Fig.1 as flow diagram which represents the water purification with all components of the system.

The water purification system of present invention as displayed in flow diagram of Fig.1 comprises Low pressure switch A, Carbon filter B, Sediment filter C, Solenoid Valve D1, Solenoid Valve D2,solenoid valve D3, solenoid valve D4, Booster pump E1, RO membrane F, Flow restrictor G, Reject water pipe H, Ultra filtration (UF) membrane I, Flow control valve J1 and J2, purified water storage tank K, Total Dissolved Salt (TDS) sensor M, UV purifier N, Circulator pump E2, Switched mode power supply P1 and P2, Push button Q1, Q2 andQ3, Micro controller board R1 and R2, Service hour indicator S1and TDS(ppm)and flow indicator S2, Alkaline system module(O1 and O2), High level float switch (T), Low level float switch (U), Acidic water outlet (V),Outlet (W), Inlet TDS sensor (X), dispensing pump(E3).

The components as mentioned above as further described below with more details;

A. Low Pressure Switch:
The main function of low power switch is to check the input water pressure and if it is not sufficient to process though RO system, it will turn off the system.

B. Carbon Filter:
Carbon filter is part of every purification system and used to removes contaminants, impurities & organic compound based on chemical adsorption mechanism from water.

As per one embodiment, the carbon filter can be replaced by any known filter which can perform the same functions.

C. Sediment filter:
Sediment filter acts as sieve to remove particles like rust, flakes, sand, grains, small pieces of organic matter, clay particles or any other small particles in input water.

As per one embodiment, the sediment filter can be replaced by any known filter which can perform the same functions.

D1, D2, D3 and D4. Solenoid valve:
Solenoid valve is an electro-mechanically operated valve, and used to shut off the release of water or stopping distribution of water.

E1. Booster Pump:
The Booster pump is used to increase pressure of water going through RO system if the pressure of water passing through RO system is not sufficient to get processed through RO system.

E2. Circulating Pump:
The circulator pump is used to circulate purified water in a closed circuit. It circulates the purified water stored in purified water storage tank through Ultra violet (UV) or Ultra filtration module to avoid recontamination and growth of bacteria on storage.

E3. Dispensing Pump:
The Dispensing Pump is used to pump the water toward the outlet of the water purifier with extra force.

F. RO Membrane:
Reverse osmosis (RO) membranes characterized by smallest pores and involve, appropriately enough, the reversal of osmotic pressure in order to drive water away from dissolved molecules. Reverse osmosis is not a size exclusion process based on pore size; it depends on ionic diffusion to affect separation. One of its common applications is desalination of water with very high dissolved salts, in which pure water is produced from a highly saline feed stream.Thus RO membrane functions to remove ions and reduce the content of total dissolve salts (TDS) in water.

G. Flow restrictor:
Flow restrictor is a part of RO system and used to determine the amount of water that flows to drain.

H. Reject water pipe:
The Reject water pipe is the part of RO system and through this the rejected water from RO system is directed to drain or for recycling.

I. Ultra filtration(UF) membrane:
Ultra filtration (UF) membrane is all about separation process using membranes with pore sizes in the range of 0.1 to 0.001 micron. Typically, UF membranes will remove high molecular-weight substances, colloidal materials, and organic and inorganic polymeric molecules. Because only high-molecular weight species are removed, the osmotic pressure differential across the UF Membrane surface is negligible. Low applied pressures are therefore sufficient to achieve high flux rates from an Ultrafiltration membrane. Flux of a membrane is defined as the amount of permeate produced per unit area of membrane surface per unit time. Generally flux is expressed as gallons per square foot per day (GFD) or as cubic meters per square meters per day.

Ultrafiltration UF membranes can have extremely high fluxes but in most practical applications the flux varies between 50 and 200 GFD at an operating pressure of about 50 psi in contrast, reverse osmosis membranes only produce between 10 to 30 GFD at 200 to 400 psi. The UF membrane is also capable of removing bacteria.

J1 and J2. Flow Control Valve:
Flow control valve is used to regulate the flow or pressure of a water.

K. Pure water storage tank:
The water purified after going through RO system and/or UF membrane will get stored in pure water storage tank or purified water storage tank.

M and X. Total dissolved solid (TDS) sensor:
TDS sensor is the sensor which measures total dissolved salt (TDS) in to the purified water stored in purified water storage tank K water and gives signal to system to decide which purification system is to be used. Here X is TDS sensor for inlet water and M is TDS sensor for output water stored in storage tank.

If TDS value of purified or output water is below set minimum value, the system will direct the water to get pass through Ultra filtration (UF) or Ultra violet (UV) module and avoid water to pass through RO system. If TDS value of purified or output water is above set maximum value, the system will direct the water to pass through RO system and avoid passing through Ultra filtration (UF) or Ultra violet (UV).

As per one embodiment of the present invention the X is used as inlet TDS sensor which measures the TDS value of input water.

As per another embodiment of the present invention another TDS sensor M embedded in the water tank to measure the TDS value of water in the tank for the further operations.

N. Ultra Violet (UV) module:
Ultra Violet (UV) module is used to remove bacteria harmful to the human body through the exposure of ultra violet rays. UV rays penetrate harmful pathogens in water and destroy illness-causing bacteria by attacking their genetic core (DNA).

O1. Ionizer Plate:
Ionizer plates with mesh &/or solid combination plate which contains ionizer cell delivers an electrical current to the water through an array of positively and negatively charged plates. The more the water passes in and out of the plate and the greater the electrical charge passes to the water, the water pH and the Negative oxidation reduction potential of the drinking water will be higher. The ionizer plate is charging the ions present in the purified water.

Once the water passes through ionizer plates ionization process gets involved which oxidize water and convert in to alkaline water with higher negative oxidation reduction potential.

The electrodes of ionizer plate are made with the metal more particularly with platinum coated Titanium. Platinum has great value. Platinum is among the ?nest, purest and rarest precious metals on earth. This type of electrode is ideal for the production of chlorine because its long life, high efficiency and stability at low voltages allows it to reduce running costs. Dimensionally stable Titanium has excellent stability of titanium against surface and pitting corrosion make it dimensionally stable permitting dramatic innovations in equipment design, operation conditions and energy consumptions of many electrolysis processes. The application of coatings containing mixed metal oxides (MMO). This mixed metal oxide is selected from RuO2, IrO2, TiO2 and Ta2O5 allows it to reduce remarkably the over potential for anodic chlorine and anodic oxygen evolution. Additionally, the excellent stability of the MMO coated titanium anode consequently does not contaminate the electrolysis system, improving the products purity and maintenance costs.

O2. Alkaline Mineral Cartridge:
Alkaline mineral cartridge is form of filter which is used to add some minerals in the water and helps to give alkaline water.

Alkaline mineral cartridge is made up small spherical balls made up from homogeneous materials as per requirement and function. The spherical balls can be made up of metal or ceramic. In a preferred embodiment, spherical balls are made up of Mg alone or in combination with other minerals like magnesium oxide (MgO) SiO2, Al2O3, Na2O, CaO, Fe2O3, K2O and FeO. In a preferred embodiment the spherical balls are made of Mg which is responsible for decreasing oxidation reduction potential (ORP) of water and increasing pH of the water.

Once purified water passes through this alkaline cartridge, water gets in contact with spherical balls and reaction happens which converts water in to alkaline and decrease the oxidation reduction potential (ORP).

P1. 24V Switch Mode power supply:
It is used to supply the 24V power to the whole operating system of the water purifier ie. microcontroller board 1 and microcontroller board 2.

P2. 7V Switch Mode power supply:
It is used to supply the 7V power to the microcontroller board 2 which operate the ionizer plate system (O1).

Q1. Push Button :
Push button Q1 is provided to choose or select the various function of the water purification system. Through push button end user can select either RO system or UF system to be used for purification.

Q2. Push Button:
Push button Q2 is provided to select the alkaline water in the outlet of the water purifier.

Q3. Push button:
Push button Q3 is provided to select the purified water in the outlet of the water purifier.

R1. Microcontroller board-1:
Microcontroller board 1 is like a dashboard which comprises a push button, a service hour indicator, a TDS indicator and an indicator showing active purification system. Thus all functions of water purification system are operated through microcontroller board 1.

R2. Microcontroller board-2:
Microcontroller board 2 is like a dashboard which comprises a mains, push buttons, ionizer plate module, TDS sensor; solenoid valves D3, D4, D5 and dispensing pump E3. Thus all functions of alkaline water and purified water are operated through the microcontroller board 2.

S1. Service hour Indicator:
The service hour indicator displays remaining hour of service of the purification system based on the consumption of the different components and other parameters. This will help user to get reminder about service due and can service the purification system on time to avoid any major damage to water purification system.

S2. TDS and Flow level indicator:
The TDS and flow level indicator indicates the value of TDS in the input water and the output water along with the flow level at the inlet and outlet of the water purifier.

T, U. Float Switch:
The float switch is one type of level sensor which senses the level of the water thorough out the tank.

As per one embodiment of the present invention float switch T is used as high level float switch. Which control the highest level of the water in the water tank. This Switch shut off the flow of water into the tank when the level of water exceeds the predetermined level.

As per another embodiment of the present invention float switch U is used as low level float switch. This switch controls the lowest level of the water in the water tank. The low level float switch opens the valve to start the flow of the water into the tank when the water level reduces from the predetermined level of the water.

As per system the micro controller board also have few more LED displays as mentioned below;
L1: which indicates RO system is active and the water is passing through RO system.
L2: which indicates UF system is active and the water is passing through UF membrane.
L3: which indicates UV system is active and the water is passing through UV module.
L4: which indicates status if low pressure or no water coming from feed water line.
L5: which indicated storage tank is full.
L6: which indicated the mode of system either Auto or Manual.

The whole water purification system of present invention works as described below;

Input water or source water or feed water passes through Low pressure switch(A)and then pass through carbon filter (B) and then pass through sediment filter C and then pass through online inlet flow meter (Y) and Solenoid valve (D1). From here the system will direct the water to either RO system or to ultra filtration (UF) membrane based TDS value of output water or purified water present in the storage tank (K) water against set minimum and maximum TDS values. The TDS of the input water is calculated at the input TDS sensor (X) which mounted between the low pressure switch (A) and carbon filter (B).

If purified water TDS is higher than pre-set value, water will pass through booster pump E1 which will increase the pressure and flow of water to pass through RO membrane F and purified water will be collected in purified water storage tank (K) and rejected water pass through flow restrictor (G) and go to drain via reject water pipe (H).

If purified water TDS is lower than pre-set value, water will pass through ultra filtration (UF) membrane I and solenoid valve D2 and through flow control valve (J1) will be collected purified storage tank (K).

During storage of purified water in purified water storage tank (K), it will be circulated from purified storage tank (K) to Circulator pump (E2) and will pass through UV module N and again get collected into purified storage tank (K).This operation gets performed at fix interval of time. The interval can be pre-set or changed.

As per the advantageous embodiment of the present invention, the present invention also provides the option to the end user in terms of converting purified water of specific TDS in to the alkaline water.

In the case, when the end user wants the alkaline water as the output then the purified water stored in the water storage tank is passed through the alkaline system module (O1,O2) To provide the alkaline water to the end user the alkaline mineral cartridge (O2) is used. For the end user, in there is provided the option for purified water and alkaline water. If the end user required purified water in that case the user is pressed the (Q2) push butter.

While the push button (Q2) pressed, the purified water from the water tank (K) feed in the pipe and the dispensing pump (E3) inject the water into pipe where solenoid valve (D4) is open and the purified water comes in the outlet (W).

When the push button (Q2) is pressed in that case the solenoid valve (D3) remains closed.

While the end user press the push button (Q3), the solenoid valve (D4) is off and the purified water from the water tank (K) is passed through the dispensing pump (E3) into alkaline mineral cartridge (O2). In this module, necessary amount of alkaline mineral is added into the purified water and the alkaline water from the solenoid valve (D3) comes into the outlet (W). The system referred in the Figure 1 of the present invention.

The power to all of the embodiments shown in figure 1 provided from the 24V power supply (P1).

As per one embodiment the water purification system of present invention is for residential use or for drinking water use. However, it can also be used for any of the industry purpose or any other purpose where continuous quality water is desired.

As per another embodiment of the present invention instead of the alkaline mineral cartridge (O2), the ionizer plate (O1) can also be used. This type of system can be used in the domestic water purification system as well as in industries, where everyday large amount of the alkaline water is needed.

This system is described in detail herewith:
According to this, when the end user is press the push button (Q2) the solenoid valve (D4, D5) is open and the solenoid valve (D3) is closed. So the purified water from the water tank (K) is passed through the dispensing pump (E3) towards the outlet (W).

When the end user required alkaline water in that case the user is pressed the push button (Q3). While the push button (Q3) is pressed the solenoid valve (D3, D5), flow control valve (J2) is open and solenoid valve (D4, D5) is closed.

The purified water from the water tank passes in to the ionizer plate (O1) through the dispensing pump (E3) and the solenoid valve (D3). The ionizer plate (O1) having the positive and negative electrode inside it. This electrodes charge the ions present in the water and the alkaline water met at the outlet (W). Due to the ionizing process on the water some amount of acidic water is released from the water. This acidic water goes to acidic water outlet (V) through the flow control valve (J2). The alkaline water system with ionizer plate is referred in Figure 2 of the present invention.

The power to the ionizer plate supplied by the 7V switched mode power supply.

The main features of the water purification and alkaline system with TDS on demand is end user can get the consistent quality purified water in term of TDS of output or purified water irrespective of source water or input water quality along with option to have alkaline water in the same system.

Another main feature of the water purification and alkaline system with TDS on demand is end user can get alkaline water consistently as and when required.

As per one embodiment, the end user can select the purification and alkaline system to be used for water purification based on value of output TDS. Thus if end user want to select RO system or UF system, he/she can select it manually. Also the selection available to end user weather the user required normal purified water or the alkaline water.

As per another embodiment, when system is on auto mode, system itself decides the purification system to be used based on TDS value of output water.

The water purification system with TDS on demand as described above along with its features, advantages of this present disclosure, and the manner of attaining then will become more apparent and the present disclosure will be better understood by reference to the diagram provided in Fig.1 embodiment of the present disclosure.

Figure Illustrates flow diagram and electric diagram of a water purification system with “TDS on demand with indication” (TODI).

In figure all details are illustrative, and provided to enable persons skilled in the art to make or use the disclosure and not to limit the scope of the disclosure, which is defined by the claims.

It will be apparent to those skilled in art that various modifications and variations can be made to the present figure without departing from the spirit and scope of the invention provide they come within the scope of the appended claims and their equivalents. The present flow diagram and electric diagram can be practiced without these specific details given in Figure.

List of reference numerals:

A Low Pressure switch
B Carbon Filter
C Sediment filter
D1, D2, D3, D4, D5 Solenoid Valve
E1 Booster Pump
E2 Circulating Pump
E3 Dispensing Pump
F RO Membrane
G Flow Restrictor
H Rejection Water
I UF Membrane
J1, J2 Flow Control Valve
K Storage Tank
L1, L2, L3, L4, L5, L6 LED Lamp
M TDS Sensor
N UV Purifier
O1 Ionizer Plate
O2 Alkaline Mineral Cartridge
P1 24V Switch Mode Power supply
P2 7V Switch Mode Power supply
Q1, Q2, Q3 Push Button
R1, R2 Microcontroller Board
S1, S2 Display
T High Level Flot Switch
U Low Level Flot Switch
V Acidic water outlet
W Outlet
X Inlet TDS Sensor
Y Online Inlet Flow Meter
Z Online Outlet Flow Meter