DESC:TITLE OF THE INVENTION
A UNIQUE PROCESS FOR ALKALIZER TO SWITCH ON AND OFF FOR ADDITION OF MINERALS

FIELD OF THE INVENTION
[001] The invention relates to the field of water treatment, more particularly to a system and a method to switch ON and OFF for addition of minerals.

BACKGROUND OF THE INVENTION
[002] Alkaline drinking water is known to have certain health benefits, including antioxidant properties. Studies have confirmed such findings of antioxidant properties and other health benefits of alkaline water. If Reverse osmosis (RO) purification is used along with Alkaline water maker/H2 water maker:
a) In high salinity area (inlet water 1500 ppm TDS), the RO reduces 90-95% salts and the product water TDS is typically around 150 ppm, the alkalizer will perform efficiently at this TDS of water.
b) In area where water salinity is 50-500 ppm, since RO product water TDS is the range of 5- 50 ppm, alkaline water purifier will not be able to produce alkaline water and Hydrogen water with the negative Oxidation Reduction potential (ORP) value up to -800mV.
c) In areas where municipal water with low salinity is below 50 ppm TDS, the RO product water will be lacking sufficient salts and hence the alkalizer will not be able to give proper Alkaline pH values and negative ORP.
[003] Typically, alkaline water makers use Ultrafiltration in the pretreatment. In high salinity area, to improve the taste of water, reverse osmosis purification would be preferred. In low salinity area, to remove all chemical contaminants RO can be opted by the customers. Therefore, there is a need for providing RO purified water or non-RO purified water based on salinity of water or user’s choice. Moreover, in low salinity water, Alkalizer with RO requires addition of minerals for efficient working of the Alkalizer. Therefore, there is a need for providing a selection in alkaline water maker, for RO water or non-RO method based on salinity of water or user’s choice. Also, there is a need for a method which can switch ON or OFF mineral addition based on the TDS generated by RO or non-RO purification system.

SUMMARY OF THE INVENTION
[004] Accordingly, the present invention in one aspect provides a water purification system for producing alkaline water which can switch ON or OFF the mineral addition based on the TDS generated by RO or non-RO purification system. The system comprises an input conduit positioned to supply water to a series or combination of filters (102), a sediment filter (106) for receiving the water from the filter (106) and for removing the smaller, fine particles, a diverter valve (112) in fluidic communication with the sediment filter (106) for diverting the water, a reverse osmosis cartridge (110) positioned to receive water from the diverter valve (112) and is capable of separating a supply stream of feed water into an RO permeate stream and an RO reject stream, purification units (114) positioned to receive water directly from the diverter valve (112) or from the reverse osmosis cartridge (110), a sensor (120) positioned downstream of the purification units (114) to assesses the water quality and an alkalizer (126) for electrolyzing the water to produce alkaline water having a desired pH.

BRIEF DESCRIPTION OF THE DRAWINGS
[005] Reference will be made to embodiments of the invention, examples of which may be illustrated in accompanying figures. These figures are intended to be illustrative, not limiting. Although the invention is generally described in context of these embodiments, it should be understood that it is not intended to limit the scope of the invention to these particular embodiments.
Figure 1 shows schematic illustration showing the system of preparing the alkaline/hydrogen water using the TDS sensor in accordance with an embodiment of the invention.
Figure 2 shows schematic illustration showing the system of for alkalizer to switch on and off for addition of minerals in accordance with an embodiment of the invention.
Figure 3 shows schematic illustration showing the system for alkalizer to switch on and off for addition of minerals wherein the path of water is diverted from the RO (non-RO mode) in accordance with an embodiment of the invention.
Figure 4 shows schematic illustration showing the system for alkalizer to switch on and off for addition of minerals wherein the path of water is diverted from the RO (non-RO mode) as well as from the mineralizer in accordance with an embodiment of the invention.
Figure 5 shows schematic illustration showing the system for alkalizer to switch on and off for addition of minerals wherein the path of water is diverted to the RO (RO mode) in accordance with an embodiment of the invention.
Figure 6 shows schematic illustration showing the system for alkalizer to switch on and off for addition of minerals wherein the path of water is diverted to the RO (RO mode) as well as to the mineralizer in accordance with an embodiment of the invention.

DETAILED DESCRIPTION OF THE INVENTION
[006] The invention relates to the field of water treatment, more particularly to a system and a method for producing alkaline water, using Reverse Osmosis.
[007] In one aspect of the present invention disclosed is a system which is utilized for producing alkaline water.
[008] Figure 1 discloses the system comprising an input conduit that supplies water which is passed through a series or combination of filters 102 comprising activated carbon and filter bag which removes colour, odour, organics, chlorine and other unwanted particles from the water. Further the water is then passed through a sediment filter 106 in order to ensure removal of the smaller, fine particles to obtain filtered water. The filtered water passes on to a diverter valve 112 which diverts the water either to a reverse osmosis cartridge 110 or to other purification unit/s 114.
[009] The other purification units can be an Ultrafiltration unit or Ultra Violet (UV) system or ESS – Electrolytic sanitizing system, silver ionization purification system or a combination. The system may comprise a tank 116 for receiving the purified water. Further, the system comprises a sensor 120 that assesses the water quality and controls the downstream processing/purification of water. TDS (total dissolved solids) sensor is preferably positioned downstream of the purification unit. The purified water is assessed by the sensor and depending upon the total dissolved solids, channels the water through a first output path or a second output path via a bypass conduit 122, positioned downstream of the sensor. The purified water having the total dissolved solid levels below a predetermined range are channelized through first output path for passing the purified water to a mineralizer 124 and the purified water having the total dissolved solid levels above the predetermined range are channelized through a second output path such that the purified water bypasses the mineraliser. Typically, purified water having TDS above 60 pm is channelized through a second output path such that the purified water bypasses the mineralizer. This purified water with desired TDS is used for producing alkaline water via electrolytic ionisation. Alkaline water makers perform efficiently, when the total dissolved solids (TDS) of water is 100 ppm or above. When TDS is lower than 50 ppm, the unit is unable to make alkaline water. Accordingly, depending upon the TDS present in the purified water or filtered water, the purified water or the filtered water is passed through a mineraliser and further to the alkalizer 126 to produce alkaline water by electrolyzing the water to produce alkaline water having a desired pH.
[010] Figure 2 depicts the system for alkalizer to switch on and off for addition of minerals. Figure 3 illustrates the system wherein the filtered water passes on to a diverter valve 112 which diverts the water from the reverse osmosis cartridge 110 directly to other purification unit/s 114. Figure 4 depicts the system wherein the filtered water passes on to a diverter valve 112 which diverts the water from the reverse osmosis cartridge 110 directly to other purification unit/s 114 and also the water is channelized through a second output path such that the purified water bypasses the mineralizer (124). Figure 5 depicts the system wherein the filtered water passes on to a diverter valve 112 which diverts the water to the reverse osmosis cartridge 110 directly to reverse osmosis cartridge 110. Figure 6 depicts the system wherein the filtered water passes on to a diverter valve 112 which diverts the water to the reverse osmosis cartridge 110 and also the water is channelized through a first output path such that the purified water passes through the mineralizer (124).
[011] In another aspect of the present invention disclosed is a method for producing alkaline water. The method comprises initially supplying water from the input conduit to a series or combination of filters. The water is then passed through a sediment filter to obtain filtered water. The filtered water passes on to a diverter valve which diverts the water either to a reverse osmosis cartridge or to other purification unit/s to obtain purified water. This purified water may be then collected in a tank. The purified water is assessed by the TDS sensor and depending upon the total dissolved solids channels the water through a first output path or a second output path via a bypass conduit, positioned downstream of the sensor. The purified water having the total dissolved solid levels below a predetermined range are channelized through first output path for passing the purified water to a mineralizer and the purified water having the total dissolved solid levels above the predetermined range are channelized through a second output path such that the purified water bypasses the mineraliser.
[012] This purified water with desired TDS is used for producing alkaline water. Alkaline water makers perform efficiently, when the total dissolved solids (TDS) of water is at sufficient levels. When TDS is lower than 50 ppm, the unit is unable to make alkaline water. Accordingly, depending upon the TDS present in the purified water or filtered water, the purified water or the filtered water is passed through a mineraliser and further to the alkalizer to produce alkaline water by electrolyzing the water to produce alkaline water having a desired pH.
[013] While the present invention has been described with respect to certain embodiments, it will be apparent to those skilled in the art that various changes and modification may be made without departing from the scope of the invention as defined in the following claims.
,CLAIMS:WE CLAIM:
1.) A water purification system for producing alkaline water, said system comprising:
- an input conduit positioned to supply water to a series or combination of filters (102);
wherein said filters (102) comprises activated carbon and filter bag;
- a sediment filter (106) for receiving the water from the filter (106) and for removing the smaller, fine particles;
- a diverter valve (112) in fluidic communication with the sediment filter (106) for diverting the water;
wherein the diverter valve (112) diverts the water either to a reverse osmosis cartridge (110) or directly to purification units (114);
- a reverse osmosis cartridge (110) positioned to receive water from the diverter valve (112) and is capable of separating a supply stream of feed water into an RO permeate stream and an RO reject stream;
- purification units (114) positioned to receive water directly from the diverter valve (112) or from the reverse osmosis cartridge (110);
- a sensor (120) positioned downstream of the purification units (114) to assesses the water quality ;
wherein the sensor (120) controls the downstream processing/purification of water basis the assessment;
- an alkalizer (126) for electrolyzing the water to produce alkaline water having a desired pH.

2.) The water purification system as claimed in claim 1, wherein the purification units are selected from the group of Ultrafiltration unit or Ultra Violet (UV) system or Electrolytic sanitizing system (ESS) or silver ionization purification system or a combination thereof.

3.) The water purification system as claimed in claim 1, wherein the sensor is a total dissolved solids (TDS) sensor;
wherein the sensor (120) channels the water through mineralizer (124) when the TDS of the water is below a pre-determined level.

4.) The water purification system as claimed in claim 1, wherein the sensor channels the water through a first output path or a second output path via a bypass conduit (122), positioned downstream of the sensor (120).

5.) The water purification system as claimed in claim 1, wherein the purified water having the total dissolved solid levels below a predetermined range are channelized through a first output path for passing the purified water to a mineralizer (124) and the purified water having the total dissolved solid levels above the predetermined range are channelized through a second output path such that the purified water bypasses the mineralizer.

6.) The water purification system as claimed in claim 1, further comprises a storage tank for storing the alkaline water.