76 results about "Pollution drinking water" patented technology

The invention discloses a method for applying pre-ozonation and aerated biological activated carbon processes to feedwater treatment. The method combines ozone pre-oxidation, an aerated biological activated carbon filter tank and a coagulation-sedimentation-sand filtering-disinfection conventional feedwater treatment process to produce drinking water, is a feedwater treatment process for improving water quality of feed water aiming at micro-polluted drinking water sources, and integrates the characteristics of an aerated biofilter biological pre-treatment process and an ozone biological activated carbon advanced water-purifying process. Raw water enters a pre-ozonation contact tank, a coagulation sedimentation tank and the aerated biological activated carbon filter tank orderly, is disinfected, enters a sand filtering tank, and finally flows into a clear water tank. Because the pre-ozonation contact tank and the aerated biological activated carbon filter tank are arranged in the conventional feedwater treatment process, the effect of removing organic matters, ammonia nitrogen, pathogenic microorganism, odor, chroma and the like is greatly improved, and the water quality safety of the method is obviously superior to that of the biological pre-treatment process and the ozone biological activated carbon advanced water-purifying process.

The invention discloses a cattle water trough with an automatic washing and water adding device. The cattle water trough comprises a trough body, a rotating shaft, a first servo motor, a cover plate, a washing brush, a threaded rod, a second servo motor, a water level sensor, an electronic control water valve, a pedal, a weighing sensor and a controller. When no cattle drink water, the controller controls the first servo motor to drive the rotating shaft to rotate, and therefore the cover plate can cover the trough opening of the rectangular trough body, and it can be avoided that drinking water is polluted by dust and the like. When cattle need to drink water, cattle stand on the pedal, the controller controls the servo motors to drive the cover plate to rotate so as to open the water drinking trough, and normal water drinking of cattle is not influenced. In addition, when much dirt is deposited in the trough body and the trough body needs to be washed, the controller controls the second servo motor to drive the threaded rod to rotate, and the inner wall of the trough is automatically washed through the washing brush; furthermore, the drinking water level in the rectangular trough body can be detected through the water level sensor; when the water level is lower than a set value, the controller controls the electronic control water valve to add water into the rectangular trough body, and workloads of breeders can be reduced.

The invention relates to emergency treatment method and device of sudden environmental pollutants of drinking water in a water source area. In the method, a strong electric field ionic discharge method is adopted, ionized H2O and ionized O2 are directly processed into a hydroxyl radical OH<.> according to a hydroxyl molecule structure, and the OH<.> and a part of water to be treated are respectively input into a high-efficiency gas-liquid jet dissolver to fully mix and generate a 20-30mg / L hydroxyl solution; and the generated hydroxyl solution and the water to be treated are respectively input into a high-efficiency liquid-liquid jet dissolver through a transport pipeline and are output after fully mixing in the high-efficiency liquid-liquid jet dissolver. The device comprises a gas preprocessor, a plasma source, the gas-liquid efflux jet dissolver, the liquid-liquid jet dissolver and the like. The invention can efficiently kill microorganisms such as cyanobacteria and the like, degrade organic pollutants such as microcystic toxins, phenol and the like, realize that polluted drinking water is continuously and rapidly treated on line and has the advantages of high oxidation rate, low energy consumption, short treatment time, little occupied land and the like.

The invention relates to a multi-step combined method for purifying radioactive cesium-polluted drinking water and a device used by the method. The method comprises carrying out adsorption / coagulation, sedimentation and membrane separation, adding a cupric ferrocyanide adsorbent and an aluminum salt coagulant into an adsorption tank, fully mixing the adsorbent, coagulant and radioactive cesium-polluted water for a reaction for 10-20min, carrying out precipitation for 10-15min, feeding the supernatant into a film separation tank, filtering the supernatant in the film separation tank through a hollow fiber film and discharging the product water. The method simplifies processes. The device utilizes an independent precipitation unit so that precipitation performances of a cupric ferrocyanide adsorbent are improved and film pollution is reduced. The method and device are suitable for emergency treatment on radioactive cesium-polluted drinking water and waste water, and have a wide application prospect and prominent environmental and social benefits.

A system which allows easy manual connection of the water bottle of a water cooler, with its bottle placed in an upright position at the bottom of the cooler (bottom load water cooler), to the remaining water system of the said water cooler and the related bottom load water cooler system. With the said system, connecting or disconnecting the water bottle of such water cooler system is a task as simple as manually turning a rotational handle clockwise or counter clockwise. This allows replacing the water bottle of such water cooler without touching any of its water pipes, which not only simplifies the process, but more importantly also eliminates chance of contamination of the drinking water system during the process. The system further utilizes a universal water bottle sealing cap with air filters to suppress bacteria growth in the drinking water bottle due to intake of polluted air. A reversible pressing system allows automatically adjustment for water bottles of different height and allows using the same type of water bottle as those used on conventional water cooler with its water bottle sitting on top of it in an inverted position (top load water cooler). All these features make it simpler and safer to enjoy the benefit brought by the bottom load water cooler system and bring the hygiene standard of such system to a higher level.