Dynamic membrane purifying reactor and method for removing ammonia nitrogen and organic matters from reclaimed water

Abstract

The invention relates to the reclaimed water processing field, and especially relates to a dynamic membrane purifying reactor and a method for removing ammonia nitrogen and organic matters from reclaimed water. A scheme which is adopted to remove ammonia nitrogen and the organic matters from the reclaimed water is characterized in that: 1, an ozone oxidation pool and a dynamic membrane pool are arranged; 2, powdery active carbon and diatomite which can adsorb the organic matters and are in favor of the growth of microbes are added to the dynamic membrane pool as matrixes; 3, the matrixes are attached to and coated on a dynamic membrane filtering base material, and a filter cake with the interception filtering function is formed by utilizing the suction effect of a suction pump; and 4, water which traverses through the filter cake on the surface of the dynamic membrane under the effect of the suction pump enters a water outlet tube and finally enters a clean water pool through a total water outlet tube. According to the invention, the ozone oxidation is combined with the dynamic membrane filtration, and the ozone oxidation allows pollutants which are difficult to degrade to be destroyed and macromolecular organic matters to be converted into middle and small molecular weight organic matters; the powdery active carbon allows pollutants of the organic matters, ammonia nitrogen and the like to be further removed from water through the adsorption and the biodegradation effect of the microbes growing on the surface; and the matrixes, the microbes, colloid particles and the like are filtered and removed under the dynamic membrane filtration effect.

Description

technical field [0001] The invention relates to a water purification reactor and method, in particular to a purification reactor for removing ammonia nitrogen and organic matter in water by using a dynamic membrane and a method for applying it to regenerated water treatment. Background technique [0002] my country's per capita fresh water resources are less than 1 / 20 of the world's average level, and the distribution is extremely uneven. The vast majority of cities in northern my country are facing the problem of water resource shortage. Using urban sewage plant effluent and urban rainwater as water sources after deep purification and reuse as reclaimed water has become an important way for many cities to alleviate the water resource crisis. According to the different reuse purposes of reclaimed water, there are also obvious differences in the treatment water quality objectives. For example, landscape water has higher requirements for removing nutrients such as nitrogen an...

AI Technical Summary

Problems solved by technology

However, the dynamic membrane is essentially a coating filtration (Precoat filtration), which has almost no ability to remove dissolved organic matter, ammonia nitrogen, phosphorus, etc.

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