Hydraulic coupler based on crystallization and phosphorus removal with short-cut nitrification and synchronous denitrification

Abstract

The invention discloses a hydraulic coupler based on crystallization and phosphorus removal with short-cut nitrification and synchronous denitrification. The structure comprises a water pump case shell, a sealing cover plate, an exhaust column barrel, a pipeline connector frame, a shutoff valve, a three-way valve pipeline, a double slurry coupling mechanism and an air compression pump. According to the invention, the double slurry coupling mechanism is matched with an air compressor pump, so that a lime aqueous solution and phosphate carboxyl form metastable precipitation crystals of ions, andammonia of an oxidation circulation frame is oxidized into nitrate to achieve a short-cut nitrification effect. Nitration operation is conducted, specifically, from the water surface to the interiorof water, and water flow is evenly lifted; nitrate is subjected to denitrification operation by denitrifying bacteria in the denitrification reflux slurry through a synchronous up-down layering effect, so that phosphorus compounds are circulated in aerobic sterilization and anaerobic bacteria respiratory decomposition, and upper-layer anaerobic degradation solid impurities and lower-layer industrial oxidation phosphorus removal organic matter sedimentation which are subjected to hydraulic coupling operation are achieved. According to the hydraulic coupler, the saturation degree of water is diluted and purified, residues are discharged outwards through the sealed cylinder, and the water is stably flowed and recycled.

Description

technical field [0001] The invention is a hydraulic coupler based on short-range nitrification synchronous denitrification crystallization and phosphorus removal, which belongs to the field of industrial wastewater treatment. Background technique [0002] In industrial wastewater, phosphorus, heavy metals, organic matter, etc. are very common water pollution phenomena, so the water purification treatment of industrial wastewater is relatively complicated, and it is necessary to remove phosphorus, heavy metals and other substances to ensure that the water resources in the later stage are basically clean and can be recycled to achieve For the effect of energy saving and environmental protection of industrial water, the disadvantages of current technologies to be optimized are: [0003] Phosphorus in sewage has the property of mutual circulation and transformation between solid form and dissolved form. For phosphorus removal in sewage, it is often chemically synthesized into so...

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Problems solved by technology

[0004] In view of the deficiencies in the prior art, the purpose of the present invention is to provide a hydraulic coupler based on short-range nitrification synchronous denitrification crystallization and phosphorus removal, so as to solve the problem that phosphorus in sewage has the performance of mutual circulation transformation in solid form and dissolved form, Chemically synthesized solid metal precipitates are commonly used to remove phosphorus from sewage, but the more active metal additives that react with phosphorus will cause secondary pollution of water quality, resulting in secondary dissolution of solid precipitates during continuous immersion to separate out heavy metals. The treatment has no obvious effect and the addition of a chemical combination process increases the content of chemical substances in the water body beyond the standard, which makes the subsequent water purification operation continue to be sluggish, affecting the progress of the project, and also troubles the staff. The cumbersome operation of removing not only phosphorus but also heavy metals from wastewater, aggravating the industry The difficulty of wastewater treatment

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