High-phosphorus wastewater treatment method

Abstract

The invention discloses a wastewater treatment technology which is characterized in that a water purifying agent is added to wastewater, the wastewater enters a separator for separation, separated wastewater enters a tower from the top of a biological filter membrane tower, air is sucked from the bottom of the biological filter membrane tower, and the wastewater has an aerobic reaction in the biological filter membrane tower; the wastewater after reaction in the biological filter membrane tower enters a wastewater sedimentation tank for sedimentation after a flocculating agent is added, and the settled wastewater meets the emission standard. The hydraulic retention time of the wastewater is short, the treatment speed is high, the treatment effect is good, the method is used for treating high-phosphorus industrial wastewater, domestic wastewater and municipal sewage whose BOD5 (5-day biochemical oxygen demand) is smaller than or equal to 500 mg / l, and the wastewater treatment process is high in efficiency and low in investment and operating cost, occupies a small area and has a good treatment effect.

Description

technical field [0001] The invention relates to a sewage treatment process, in particular to a high phosphorus sewage treatment process. Background technique [0002] Sewage treatment methods are composed of physical treatment methods, chemical treatment methods, biochemical methods and various technological methods. With the continuous improvement of sewage pollutant treatment requirements, the treatment process is getting longer and longer, and the investment per ton of sewage treatment is getting higher and higher. , the cost of treatment is getting higher and higher, and the area of ​​the treatment plant is getting bigger and bigger. In order to solve the shortcomings of the original sewage treatment process, innovative new sewage process and new technology are necessary for the market. [0003] At present, the treatment of sewage has been using a similar process route, such as the traditional activated sludge process, developed to the A / O process and A 2 The / O process...

AI Technical Summary

Problems solved by technology

[0003] At present, the treatment of sewage has been using a similar process route, such as the traditional activated sludge process, developed to the A / O process and A 2 The / O process essentially adds anaerobic biological treatment and anaerobic tanks. While further processing BODs, CODcr, and SS, it increases the effect of phosphorus and nitrogen removal, but the investment cost per ton and operating cost will increase, and the treatment The final sewage still needs advanced treatment to meet the requirements of reclaimed water reuse. There are few equipments, mainly relying on the pool body, so it is impossible to form industrialized sewage treatment and complete sets of equipment, and its reaction efficiency and treatment efficiency have not been fundamentally improved. Therefore, in Ton of sewage treatment investment, no breakthrough reduction in ton of sewage treatment cost