EP1971553A1 - Continuous hypochlorite generator - Google Patents
Continuous hypochlorite generatorInfo
- Publication number
- EP1971553A1 EP1971553A1 EP06840374A EP06840374A EP1971553A1 EP 1971553 A1 EP1971553 A1 EP 1971553A1 EP 06840374 A EP06840374 A EP 06840374A EP 06840374 A EP06840374 A EP 06840374A EP 1971553 A1 EP1971553 A1 EP 1971553A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- hypochlorite generator
- brine
- continuous
- flow
- hypochlorite
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/46—Treatment of water, waste water, or sewage by electrochemical methods
- C02F1/461—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis
- C02F1/46104—Devices therefor; Their operating or servicing
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/46—Treatment of water, waste water, or sewage by electrochemical methods
- C02F1/461—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis
- C02F1/46104—Devices therefor; Their operating or servicing
- C02F1/46109—Electrodes
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/46—Treatment of water, waste water, or sewage by electrochemical methods
- C02F1/461—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis
- C02F1/467—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis by electrochemical disinfection; by electrooxydation or by electroreduction
- C02F1/4672—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis by electrochemical disinfection; by electrooxydation or by electroreduction by electrooxydation
- C02F1/4674—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis by electrochemical disinfection; by electrooxydation or by electroreduction by electrooxydation with halogen or compound of halogens, e.g. chlorine, bromine
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/42—Nature of the water, waste water, sewage or sludge to be treated from bathing facilities, e.g. swimming pools
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2201/00—Apparatus for treatment of water, waste water or sewage
- C02F2201/46—Apparatus for electrochemical processes
- C02F2201/461—Electrolysis apparatus
- C02F2201/46105—Details relating to the electrolytic devices
- C02F2201/4611—Fluid flow
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2201/00—Apparatus for treatment of water, waste water or sewage
- C02F2201/46—Apparatus for electrochemical processes
- C02F2201/461—Electrolysis apparatus
- C02F2201/46105—Details relating to the electrolytic devices
- C02F2201/4612—Controlling or monitoring
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2201/00—Apparatus for treatment of water, waste water or sewage
- C02F2201/46—Apparatus for electrochemical processes
- C02F2201/461—Electrolysis apparatus
- C02F2201/46105—Details relating to the electrolytic devices
- C02F2201/4618—Supplying or removing reactants or electrolyte
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/02—Temperature
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/05—Conductivity or salinity
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2209/00—Controlling or monitoring parameters in water treatment
- C02F2209/40—Liquid flow rate
Definitions
- the present invention relates to a continuous hypochlorite generator.
- This invention has particular but not exclusive application to a continuous hypochlorite generator for swimming pool water treatment, and for illustrative purposes reference will be made to such application. However, it is to be understood that this invention could be used in other applications, such as treating spas, hot tubs, drinking water, water in tanks or containments, process water and waste streams.
- hypochlorites and particularly hypochlorites are an economical antimicrobial for water treatment, and general industrial disinfection. Chlorine gas and
- hypochlorite predominate in the market, with the hypochlorite either being produced in bulk for distribution in containers from tanks, through drums to domestic dispensing containers, or being produced in situ by electrolytic generators.
- the process of electrochlorination to produce an anti-microbially effective source of available chlorine as sodium hypochlorite solution is well known and basically consists of converting common salt (Sodium Chloride, NaCl) to low strength (up to 1 %) liquid chlorine equivalent by electrolysis. It is important that drinking water, wastewater, process water and swimming pool water is correctly disinfected to ensure safety and environmental responsibility.
- common salt Sodium Chloride, NaCl
- Electrochlorinators generally comprise an electrolysis cell, a power supply to electrodes, a salt water supply and a control system, which allow the production of the hypochlorite solution by electrolysis from sodium, potassium, magnesium or other cationic chlorides, or a combination of such chlorides.
- Electrochlorination is commonplace in recirculated systems such as swimming pools and the like, where the water in the pool is dosed with salt according to an approximate measure of concentration and the cell simply processes the water during the filtration cycle.
- Such a system is not applicable when it is not appropriate or desirable to add salt to the body of water or for use in a reticulated systems such as drinking water supplies and process water treatment.
- on-site hypochlorite generators may be used for reticulated systems. These systems operate most efficiently when the salinity of the solution to be electrolysed is around 3% by weight.
- the salt is fed from a brine tank holding a concentrated salt solution (26% by weight), which is diluted to 3% by mechanical means, such as valves and rotameters.
- the present invention is directed to a continuous hypochlorite generator, which may at least partially overcome at least one of the abovementioned disadvantages or provide the consumer with a useful or commercial choice.
- the invention resides broadly in a continuous hypochlorite generator including:
- the invention resides in a continuous hypochlorite generator including:
- control means accepting input from each of said salinity, flow and temperature sensors and controlling level and flow from said brine source and dilution water supply to maintain salinity in said electrolysis cell within respective preselected ranges.
- the concentrated brine source may take any suitable form.
- the concentrated brine source may comprise a brine storage tank wherein brine is replenished periodically.
- the saturated brine source may comprise a substantially continuous brine source such as a salt mass in a brine tank into which is passed water under the control of level maintenance means.
- metering means such as a pump or valve under control of the control means and adapted to maintain the correct liquid level in the brine storage tank.
- the level control means may comprise a mechanical cistern type arrangement or an electrical sensing mechanism which allows the water to be maintained at a preset level.
- the chemical composition and relative amounts of different salts in the salt mass may be adjusted to provide additional therapeutic or synergistic effects.
- the preferred salts used in the salt mass will typically include monovalent or divalent cations such as calcium, magnesium, potassium and manganese, but may also include other metal salts such as salts of zinc (studies have shown that zinc salts mediate antiviral activity on respiratory syncytial virus (RSV) by altering the ability of the cell to support RSV replication Effect of Zinc Salts on Respiratory Syncytial Virus Replication, Rahaman O. Suara 1 and James E. Crowe, Jr.), gold (active progressive rheumatoid arthritis, and progressive juvenile chronic arthritis), or ammonium salts which have been shown to be effective against some forms of cancer.
- a preferred salt mass may comprise a combination of Sodium, Potassium and Magnesium Chlorides in proportions from 0 - 100% and other additives may be used to enhance the therapeutic or agricultural benefits of the solution.
- the invention may reside in a salt mass composition including at least two salts from the group including the alkali metals, the alkaline earth metals, the transition metals, the halogens or the rare earth elements.
- the salts chosen and the actual composition of the individual salts chosen will preferably be adjusted according to the purpose.
- all salt masses will include at least a chlorine salt component.
- the electrolysis cell may be supplied by the brine source by any suitable means.
- metering means such as a pump or valve under the control of the control means and adapted to meter brine into the electrolysis cell.
- the dilution water may be supplied by any suitable means.
- metering means such as a pump or valve under the control of the control means and adapted to control the dilution water flow into the electrolysis cell
- Electrolysis cells may take the form of one or more pairs of electrodes across which is maintained a suitable potential difference.
- the electrodes may comprise one or more of plates, mesh screens, membranes or the like. Potential difference may be applied continuously, on demand, on a timer or under control of the control means.
- the electrodes may be permanently assigned a polarity or may be periodically reversed as to polarity. By polarity reversal means the inevitable electrolytic deposits on the electrodes are at the least distributed evenly across all electrodes and at best are significantly reduced by electrolytic reversal of the polarity.
- the electrolysis cell may be designed so that the dilute brine flow is controlled so that it exceeds a minimum flow velocity over the electrode plates. This may be by controlling the dilute brine flow, the electrode cross sectional area and using multiple internal circulation paths so that the required minimum velocity is achieved.
- the interior of the electrolytic cell is preferably configured to provide internal recirculation of the electrolyte to increase the fluid velocity over the electrodes to increase hypochlorite production efficiency.
- the driving force of the electrolysis and therefore the efficiency of the electrolytic cell is dependant upon the concentration of ions.
- concentration profile is typically highest near the electrolyte inlet and lowest near the electrolyte exit, resulting in the electrodes nearest the electrolyte inlet having a high driving force and those near the outlet having a low driving force.
- Using internal recirculation according to the present invention will preferably even out the concentration profile of electrolyte in the cell.
- the efficiency of the cell is increased. It is also realized that it is disadvantageous to have localized areas of low concentration. Also important to the function of the present invention is the increase of flow velocity over the electrodes to promote more even electrolyte concentration.
- the internal recirculation of electrolyte may be accomplished in a number of ways.
- a circuitous flow pathway through the cell may be provided with return channels to circulate electrolyte.
- a separate channel or duct may be provided inside the cell to recirculate the electrolyte.
- the duct may have only upper (top) and lower (bottom) openings. Accordingly, gas bubbles evolving at an electrode, which tend to flow upward, are prevented from entry into the duct so that a difference in gross density of electrolyte takes place readily between the exterior and interior of the duct. Down flow occurs in the duct while upward flow occurs outside of the duct to produce natural circulation of electrolyte in the cell.
- the natural circulation in an electrolytic cell of the invention serves to equalize distribution of concentration therein and to rapidly remove evolved gas.
- a larger current density brings a wider range of distribution of concentration in the cell, and, also, a larger current density increases the gas evolution, which leads to a greater difference in gross density between the exterior and interior of a duct to cause greater circulation. Consequently, the cells of the invention can effectively maintain uniform or equal distribution of concentration even under high current density.
- a duct having a horizontal part as well as vertical part is well suited to maintaining a more uniform concentration in the cell.
- an L-shaped duct is preferred with electrolyte circulation occurring between areas with the lowest concentration and areas with the highest concentration. Therefore, an upper opening of a duct should be adjusted close to an outlet hole for spent electrolyte and electrolytic product. Likewise, a lower opening of a duct should be adjusted close to an inlet hole for fresh electrolyte.
- the duct may be of any cross-sectional shape.
- the dimension of the duct may be chiefly determined according to that required for circulation, which depends upon current efficiency of the electrodes employed, utilization degree of brine, construction of an electrolytic cell and electrode area.
- the salinity sensor may take any suitable form.
- the salinity sensor may measure the conductivity, steady state current and/or voltage between electrodes, or other electrical parameter of the solution in the electrolysis tank, and provide an output that may be correlated against standard range values corresponding to concentrations for salt in solution.
- the salinity sensor may comprise the Electrolyser electrodes, a dedicated pair of electrodes, or an independent sensor.
- the flow sensor may take any suitable form.
- the flow sensor may measure the presence of liquid by conductivity or other electrical parameter.
- the flow sensor may comprise the Electrolyser electrodes, a dedicated pair of electrodes, or an independent sensor and it may be combined with the salinity sensor.
- the temperature sensor may take any suitable form.
- the temperature sensor may measure the liquid temperature by electrical, mechanical or any suitable means.
- the temperature sensor may comprise the Electrolyser electrodes or an independent sensor.
- the level sensing means may comprise a float arrangement that either is of a reed switch type that goes open and closed circuit at selected of levels.
- the level sensing means may comprise one or more ground referenced contacts that sense the level with reference to the conductivity of, or ultrasonic measurement means, or reduced capacitance relative to air of, the solution in the hypochlorite storage tank, hi a yet further embodiment, the level sensing means may comprise one or more pairs of discrete sensor electrode pairs disposed at a selected level or levels in the hypochlorite storage tank.
- the hypochlorite storage tank and the dosage outlet may take any suitable form and will be in part determined by the nature of the process stream being dosed.
- the dosage outlet may comprise a pump or venturi supplying hypochlorite solution to the process water either continuously or on an on demand basis, hi one embodiment of the present invention, a sensor is provided in an intermittently flowing process line to activate the dosage outlet in response to commencement of flow.
- the process line includes a flow meter and / or chlorine analyser and / or Redox potential analyzer in response to which the dosage outlet and / or hypochlorite generator is operated.
- the control means accepting inputs from each of the level sensing means and salinity sensor and controlling the brine source, dilution and make up water supply may comprise an electromechanical logic apparatus, programmable logic controller or the like.
- the flow through the electrolysis cell and into the process water will be controlled by the control means and by brine and dilution water pumps or valves.
- the process may be activated by the control means in response to inputs from a time clock or inputs from instruments, such as a flow meter and / or chlorine analyzer and / or redox potential analyzer.
- salt is tipped into a brine tank and the water supply thereto operated by a float valve or level sensing means and / or pump designed to add make up water to maintain a constant level.
- Brine is then transferred to the electrolysis cell by operation of a pump, controlled by the control means.
- Water is added to dilute the brine flowing to the electrolysis cell to 2.0 to 3.5% by operation of a pump or solenoid valve, controlled by the control means.
- a heat exchange coil or chiller may or may not be fitted to effectively cool the solution in the case where temperatures exceed a preset level during the hypochlorite generation process.
- a water heater may or may not be fitted for particular applications, especially where the dilution water may be supplied at temperatures for example ⁇ 18°C.
- the salinity may then be checked for a short period of time, initially, periodically or continuously during the hypochlorite generation process and if the salinity is for example > 0.5% the main hypochlorite generating electrodes may be activated by the control means for a set period of time. During this time the level in the storage tank may be checked. Also during this time, the temperature and flow of the liquid may be checked.
- the control means may include indicator means adapted to indicate the condition of the apparatus. If the salinity is checked and is for example ⁇ 1.5% and > 0.5% a visual indicator, such as an LED labeled "Low Salt” may illuminate indicating the need for additional mass salt to be added to the brine tank. If for example the salinity is checked and is for example ⁇ 0.5% a visual and / or audible indicator such as an LED labeled "No Salt” and / or a buzzer may be activated and the system may be shut down to halt any further operation, until mass salt is added and the apparatus is restarted. Similar alarms and indications may be activated in the event of no flow or high temperature.
- a visual indicator such as an LED labeled "Low Salt” may illuminate indicating the need for additional mass salt to be added to the brine tank.
- a visual and / or audible indicator such as an LED labeled "No Salt” and / or a buzzer may be activated and the system may be shut down to halt any
- hypochlorite generation period may be signaled by an audible and / or visual indicator such as an LED labeled "Cell on”. If the low level control sensor in the hypochlorite storage tank has been reached, the control means may illuminate an LED labeled "Dosing On” and an LED labeled "Hypo Ready", indicating that there is sufficient liquid in the tank to allow the dosing of hypochlorite.
- control means may automatically continue the process and will continue to do so whenever the liquid level falls below both the top and intermediate control points. If the dosing flow is greater than the hypochlorite production, the level in the hypochlorite storage tank will fall until the lower level control sensor is reached and the control means may extinguish the LED labeled "Dosing On" indicating that the hypochlorite tank is effectively empty. This condition may be transmitted by the control means to the hypochlorite dosing apparatus to allow dosing to cease.
- the control means may also include safety features such as audio and/or visual indications. For example, if the salinity is checked and found to be high, for example > 4.0%, a "No Water” or “Flow Fault” LED and / or audible buzzer may be activated. In another example, if during the hypochlorite generation cycle the hypochlorite temperature exceeds a preset value, for example 45°C, an "Overload or Temp High" LED and / or audible buzzer may be activated.
- a preset value for example 45°C
- the control means may include means for varying the power to the electrodes, or cycling the power or other means of power management. However, it is preferred that the electrodes run at full power when they are on.
- the reversing of the polarity of the electrodes may or may not be used for the electrodes responsible for the salinity checking and may or may not be used for the main hypochlorite generating electrodes. The reversing period maybe selectable or fixed.
- the control means may be fitted with supplementary electromechanical apparatus allowing the display of operating parameters such as "Volts”, “Amps”, “Operating Hours” and “Status” and may allow alarms and other operating variables to be transmitted to other external devices by electromechanical means.
- the dosing system may operate normally whenever required. Where the flow is intermittent, the dosing system may be controlled to only operate when a flow detector indicates that there is flow. Dosing may be achieved by either a solenoid vale operated by the control means or by a separate dosing pump or preferably by turning the complete system on / off or which may be controlled by time, flow and / or chlorine analysis and / or Redox potential.
- Figure 1 is a diagrammatic view of a process according to a preferred embodiment of the present invention.
- a sterilant generator comprising a brine tank 9 of about 25 litres, pumps 12, 13, 14 and an electrolysis cell 19.
- a water supply 10 flows through a control valve 11 and is then manifolded to provide a brine tank make up water supply
- the brine tank 9 contains a salt mass 24, and is fitted with a brine manifold 26 in the base of the tank. Operation of the brine pump 13 and the dilution water pump 14 effects transfer of brine and water to the dilute brine flow line 18.
- the electrolysis cell 19 is provided with hypochlorite generation electrodes 20 connected by power leads 21, a flow sensor 31 and the waterways are configured to ensure optimum flow velocities are achieved.
- a temperature sensor 27 is fitted to the outlet of the hypochlorite generation cell 19 to measure the temperature of the solution 23.
- a control valve 22 is provided to allow isolation of the cell.
- the process water flow line 29 is fitted with a non return valve 28.
- a flow sensor or other analysis equipment 30 may be provided in the flow line 29.
- brine tank 9 In use, 20 kg salt (sodium chloride and / or potassium chloride and / or magnesium chloride) is tipped into the brine tank 9 to become the salt mass 24.
- the brine tank float valve 16 opens and pump 12 runs until the brine tank 9 is filled with make-up water. If the control mechanism calls for the machine to start, the brine pump 13 will transfer brine through the brine manifold 26 into the brine line 17 and the dilution water pump 14 will start allowing brine to be diluted and to flow through the dilute brine line 18.
- the dilute brine flows through the electrolysis cell 19 which is powered to allow the electrolysis process to occur and salinity, flow and temperature checks are made.
- the salinity is checked by reference to the current passed for an applied voltage, which may be correlated against salinity. Ideally, the salinity will be in the range 2.0% - 4.0%. If the salinity ⁇ 1.5% the process will operate but the "Low Salt” LED will be activated to advise the need for fresh salt to be added to the brine tank 9. If the salinity is ⁇ 0.5% the "No Salt” LED and an audible buzzer will be activated and the process will not operate until fresh salt is added and the process is reset. If the salinity is > 4.0% the "Flow Fault” LED and an audible buzzer will be activated and the process will not operate until the water flow is restored and the process is reset. Salinity, flow and temperature will be regularly checked during the hypochlorite generation process.
- an "Overload or Temp High” LED and / or audible buzzer may be activated and the process may be stopped.
- control mechanism instructs the process to stop
- power to electrolysis cell 19 is stopped and after a delay dilution water pump 14 is stopped and brine pump 13 is stopped.
- the control apparatus goes to stand-by mode until the timer or other inputs request generation of hypochlorite, at which time the process restarts.
- the present embodiment provides a simple, reliable machine which can be set up and operated by relatively unskilled people to allow disinfection of water, particularly where previously such disinfection may not have occurred or may not have had the same level of automation and therapeutic and / or agricultural benefit.
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Organic Chemistry (AREA)
- Water Treatment By Electricity Or Magnetism (AREA)
- Electrolytic Production Of Non-Metals, Compounds, Apparatuses Therefor (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AU2005906919A AU2005906919A0 (en) | 2005-12-09 | Continuous hypochlorite generator | |
PCT/AU2006/001872 WO2007065228A1 (en) | 2005-12-09 | 2006-12-08 | Continuous hypochlorite generator |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1971553A1 true EP1971553A1 (en) | 2008-09-24 |
EP1971553A4 EP1971553A4 (en) | 2011-10-12 |
Family
ID=38122422
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP06840374A Withdrawn EP1971553A4 (en) | 2005-12-09 | 2006-12-08 | Continuous hypochlorite generator |
Country Status (5)
Country | Link |
---|---|
US (1) | US20090000944A1 (en) |
EP (1) | EP1971553A4 (en) |
CN (1) | CN101360686A (en) |
AU (1) | AU2006322658A1 (en) |
WO (1) | WO2007065228A1 (en) |
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US9238586B2 (en) * | 2008-11-20 | 2016-01-19 | Alion Science & Technology | Filter cleaning method |
US8940158B2 (en) * | 2009-02-13 | 2015-01-27 | Chlorking, Inc. | System and method for chlorine generation and distribution |
AU2010268710B2 (en) * | 2009-06-29 | 2015-10-08 | Proterrgo Inc. | Apparatus and method for electrochemical treatment of wastewater |
US20110135562A1 (en) * | 2009-11-23 | 2011-06-09 | Terriss Consolidated Industries, Inc. | Two stage process for electrochemically generating hypochlorous acid through closed loop, continuous batch processing of brine |
CN102147606B (en) * | 2010-02-09 | 2013-04-03 | 上海理工大学 | Online detection control system for high concentration hypochloric acid disinfectant |
WO2011143735A1 (en) * | 2010-05-21 | 2011-11-24 | Gecko Alliance Group Inc. | Method and apparatus for sanitizing water in a bathing unit and control interface for use in connection with same |
WO2012019016A2 (en) | 2010-08-06 | 2012-02-09 | Miox Corporation | Electrolytic on-site generator |
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JP6332742B2 (en) * | 2014-03-31 | 2018-05-30 | Toto株式会社 | Sanitized water generator |
CN104975305A (en) * | 2014-04-03 | 2015-10-14 | 开物科技股份有限公司 | Hypochlorous acid water production system |
US10228359B2 (en) | 2017-03-16 | 2019-03-12 | Gecko Alliance Group Inc. | Method, device and apparatus for monitoring halogen levels in a body of water |
KR102085474B1 (en) * | 2019-02-19 | 2020-04-23 | 김정남 | Generation-system for antiseptic solution including chlorine |
CN111778514A (en) * | 2019-11-18 | 2020-10-16 | 山东新日电气设备有限公司 | Sodium hypochlorite preparation system capable of intelligently adjusting current density |
CN113415886B (en) * | 2021-07-30 | 2022-05-03 | 山东本源环境科技有限公司 | Anaerobic ammonia oxidation reactor water inlet temperature control system and PID control method thereof |
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2006
- 2006-12-08 CN CNA2006800516235A patent/CN101360686A/en active Pending
- 2006-12-08 AU AU2006322658A patent/AU2006322658A1/en not_active Abandoned
- 2006-12-08 US US12/096,772 patent/US20090000944A1/en not_active Abandoned
- 2006-12-08 EP EP06840374A patent/EP1971553A4/en not_active Withdrawn
- 2006-12-08 WO PCT/AU2006/001872 patent/WO2007065228A1/en active Application Filing
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Also Published As
Publication number | Publication date |
---|---|
US20090000944A1 (en) | 2009-01-01 |
EP1971553A4 (en) | 2011-10-12 |
WO2007065228A1 (en) | 2007-06-14 |
AU2006322658A1 (en) | 2007-06-14 |
CN101360686A (en) | 2009-02-04 |
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