Microbial Attenuation of hospital washbasin spent using online hypo treatment followed by electrolysis.
Process development for the development of the portable device can appropriately replace the normal
basin from hospitals. Purpose of the device to make washbasin spent free from microbes. In t~is
invention, the optimization of online hypochlorite generation was done to mix it with the washbasin
spent. This process allows to disinfect the microbial load in the spent. To ensure the maximum
inactivation the hypo treated waste further electrolyzed by anodic oxidation process. The treated waste
water passed through TSS filter followed by activated carbon filter membrane can be used to separate
solid debris and sludge from the water, passing them through a separate small channel to waste.
Electrolysis is an electrochemical method being increasingly used in treatment of wastewater. When
wastewater containing disinfectant solution, cellular debris, organic and inorganic wastes is transferred
to an electrolysis chamber, several processes such as electrolytic reactioos ::lt thP surface of electrodes,
formation of coagulants in aqueous phase, adsorption of soluble or c~lloidalut ants on coagulants,
and removal by sedimentation and floatation takes place ensuring the r oval of contaminants and
separation of treated water.
PROVISIONAL
The following specification describes the
invention
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COMPLETE "V
The following specification particularly
describes the invention and the manner in
which is to be performed.
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4. DESCRIPTION (Description shall start from next stage)
Description
The present invention is a portable design for the hospital washbasin waste water treatment based on
chlorination coupled with electrolysis for disinfection of biotic contaminant. There is an urgent need to
develop appropriate and alternative technology for controlling involvement of biotic molecules in
environment from hospital waste. Electroly~s and chlorination being green and low-cost technology
provides an efficient and quick solution.
Field of the invention:
Chlorine based disinfectants are more potent in killing bacteria, fungi and certain viruses from hand,
surfaces and wastewater. Chlorine based sanitizers are inexpensive and are effective against almost all
bacteria at a concentration of 50-lOOppm. 0.05% chlorine based solution was recommended by Doctors
Without Borders (MSF)during Ebola outbreaks for hand disinfection. However, WHO recommends the
use of alternative sanitizers as chlorine could disturb the protective skin barrier. The disinfection
efficiency and performance of chlorine gas is similar to sodium hypochlorite (NaOCI) and hypochlorous
acid (HOCI). However, the use of chlorine suffers from handling limitation which is reduced with the L:se
of NaOCI and HOCI particularly when these are being generated on- site. Hypochlorous acid (HOCI) is
strong oxidizing agent known to kill bacteria and other microorganisms formed after electrolysis of
aqueous NaCI solution.
Detailed Description of the Invention:
Electrolysis is a process that uses electric current to execute the oxidation or reduction in a solution such
as sodium chloride (NaCI) where the electrolysis forms sodium hydroxide, chlorine gas and hydrogen
which may further react to form hypochlorites (electrochlorination). Electrolyzed solutions with NaCI are
classified as strong acid water and weak acid water. HOCI is weak acid and a strong oxidizing agent
effective against a wide range of microorganisms which kills bacteria, fungi and viruses by causing
oxidation of their cellular components. In humans it is produced by white blood cells through oxidative
burst process that converts 0 2 to H20 2. The H20 2 formed further reacts with Cl- from the cellular fluid to
generate HOCI which generates primary defense against invasive microorganisms. The organic matter
present in wastewater can be oxidized by the use of HOCI which is generated by electrolysis in presence
of NaCI. Electrolyzed solutions containing NaCI are also classified on the basis of concentration of NaCI
in them. For use as medical disinfectant, solutions containing low concentration of NaCI are preferred
because the high NaCI concentration in solution shows corrosive effect. Electrolysis of NaCI solution
leads to the formation of chloride ions which can further form free chlorine. Tap water is one of the
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major factors responsible for hospital infections since many bacteria particularly Gram- negative bacilli
sustain and grow in the residual water drops in faucets. For the disinfection of tap water and drinking
water, chlorination is the most used method. The decontamination and disinfection of tap water require
the presence of approximately 0.2 ppm chlorine in one- end faucet. To ensure this, the total
concentration of chlorine in tap water should be 0.4-1.5 ppm. One problem with the use of such high
concentration of chlorine in tap water is the mutational toxicity caused due to its byproducts. The
solutions prepared by the electrolysis of NaCI solution are better inactivated in the environment and can
be used as potential disinfectants. Also, sediment filter and activated carbon filter membrane can be
used to separate solid debris and sludge from the water, passing them through a separate small channel
to waste. Further advancement in the filter mechanisms is required to assure adequate solid waste
separation from water stream within a compact setup.
Electrolysis is an electrochemical metbod being increasingly used in treatment of wastewater. When
wastewater containing disinfectant solution, cellular debris, organic and inorganic wastes is transferred
to an E;.!ec.t_rQJY$ .. chamber, several processes such as electrolv.ticJeactions at the surface of ele.ctwde~,
formation of coagulants in aqueous phase, adsorption of soluble or colloidal pollutants on coagulants,
and removal by sedimentation and floatation takes place ensuring the removal of contaminants and
separation of treated water.
In this work we have examined the potential and efficiency of disinfectants and electrolysis process for
disinfection of contaminated tap water. The mechanism involved in the entire disinfection process has
also been studied.
A patent search revealed that disinfection/sterilization of tap water containing biological waste as
mentioned in the present invention is not claimed elsewhere.
The databases searched were
-Google Patent Search
- IP Patent search
- USPTO
- Patent scope
OBJECTIVES OF INVENTION
• The first objective is to develop a design for portable hospital waste water treatment bases on
chlorination and electrolysis without any physical involvement of personal.
The second objective is to optimize the relation between chlorine concentration and electrolysis of
waste water treatments which are contaminated by biotic items used in the Academic institutions,
R&D laboratories and hospitals.

1/We claim" on separate page)
Process development for Microbial Attenuation of hospital washbasin spent using online hypo
treatment followed by electrolysis.

As the first step of disinfection cycle water is collected into the collection chamber after filling
half of tank, simultaneously hypo generator generates chlorine solution of (0.05%
concentration) using NaCI..
Secondly, Hypo chloride solution (0.05%) were added into the half-filled collection tank on
getting the signal from Ultra sonic s:-nsor.
Once the collection tanf: fi!ied, then the Solenoid valve of outlet become functional to empty
the collection tank into electrolysis charr>ber.
Electrolysis chamber is made up o"f durable plastic and plates are made up of stain less steel
(304 quality).
And now electrolysis of the il'.ta~er gets initiated for 10 min, and rest of the process is remaining
functional-as pre'Jious.
After completmg the ~-~'=ctrolysis procc:·ss, the treated water was pumped through 1000 dpi
diaphragm pur

.Jduino controller (At mega 2560, 8 bit, 5Vm, 16 MHz), Ultra sonic
sensors (<5V) for water level marking, relay (5V) were used to control the process and Infrared
sensor used for human body detec~ion. The whole system is operating on only 24V of
supply.
A chlorine and electr.olysi~ based method for disinfection of biotic contaminants:
Contaminated waste water sample fed with chlorine solution (0.05%) produced by using NaCI and then
left for 10-15 min then treated with electrolysis. Waste water contain chlorine and treated with
e-l-e-c-t-r·o· lysis where 0.8 A current is circulated into the chamber for standardized the waste water disinfection cyclen cycle.