A biogas slurry deep purification system based on sharon - SBBR - improved ecological floating bed combined process

Abstract

The invention relates to a water treatment technology in the field of environmental protection, in particular to a biogas slurry deep purification system based on an SHARON-SBBR-improved ecological floating bed combined process. The biogas slurry wastewater is deeply purified by adopting a combined process of a novel multi-stage anaerobic, anoxic and aerobic SHARON reactor, an SBBR reaction tank with a filler and an improved ecological floating bed reaction tank with various emergent aquatic plants and ecological floating beds. The system can effectively solve the problems of low resource utilization rate, poor up-to-standard treatment stability, low deep treatment efficiency, high construction and operation cost and the like in current pig farm manure treatment, effectively improves the resource utilization degree, improves the pollution purification efficiency, reduces the treatment cost, and has the advantages of high efficiency, economy, low residual sludge yield and the like. Thefinal effluent can reach the efficient intensive development area standard of the table 1 in the Ecological Economic Region of Poyang Lake Water Pollutants Discharge Standard (DB36 / 852-2015).

Description

technical field [0001] The invention relates to the field of environmental protection, in particular to a biogas slurry deep purification system based on a SHARON-SBBR-improved ecological floating bed combination process in the field of water treatment. Background technique [0002] my country's hog breeding and pork consumption both account for about 1 / 2 of the world's total. In 2018, 693.82 million pigs were slaughtered across the country, and the output value of pig breeding accounted for 3 / 4 of the total output value of animal husbandry and 18% of the total output value of agriculture, basically equivalent to that of the automobile industry. Large-scale pig farming causes huge pollution, threatening food safety and ecological environment health. [0003] Jiangxi Province is famous for its "three mountains, six waters and one field". As the "kidney of the Yangtze River", Poyang Lake is the largest freshwater lake in China. . In recent years, the water quality of Poyang...

AI Technical Summary

Problems solved by technology

[0005] However, the current short-cut nitrification and denitrification reaction system brings aerobic sludge into the anoxic reaction zone when the nitrifying liquid returns, causing a large disturbance to the anoxic reaction zone and affecting the treatment efficiency; and the whole short-cut nitrification and denitrification process is to ensure The sludge concentration in the reactor needs to reflux the overall sludge, and the disturbance caused by the reflux is relatively large; these disturbances are extremely unstable influencing factors for the reaction system that requires continuous treatment to ensure the water outlet requirements, and then affect the overall Water quality

Images