Two-stage anaerobic-tower type filter chamber livestock/poultry wastewater treatment system and treatment process

Abstract

The invention discloses a two-stage anaerobic-tower type filter chamber livestock / poultry wastewater treatment system and a treatment process, and belongs to the field of livestock / poultry wastewater treatment. The treatment system comprises a first-stage anaerobic chamber and a second-stage anaerobic chamber, wherein the wastewater inlet is connected to the first-stage anaerobic chamber; the first-stage anaerobic chamber is connected to the second-stage anaerobic chamber through a water outlet pipe; the water outlet pipe of the second-stage anaerobic chamber is connected to a tower type filter chamber; and the water outlet pipe of the tower type filter chamber can also be connected to a gravel bed artificial swamp for further treatment. The treatment process comprises the following steps: wastewater enters the first-stage anaerobic chamber from the inlet; the outlet water from the first-stage anaerobic chamber enters the second-stage anaerobic chamber; the wastewater from the second-stage anaerobic chamber is pumped into the tower type filter chamber; and after being treated in the tower type filter chamber, the wastewater flows out. The invention constructs an anaerobic treatment chamber-filter chamber, and alternately carries out anaerobic treatment and aerobic treatment on livestock / poultry culture wastewater, thereby purifying the water body. The invention uses locally-produced raw materials, has the advantages of low cost and obvious effect, and is suitable for the actual state of livestock / poultry wastewater treatment, thereby having high popularization value.

Description

technical field [0001] The invention relates to a treatment system and a treatment method of livestock and poultry wastewater, more specifically a two-stage anaerobic-tower filter tank livestock and poultry wastewater treatment system and treatment method. Background technique [0002] With the development of my country's intensive breeding industry, people are paying more and more attention to the environmental pollution caused by the large amount of livestock and poultry manure and wastewater produced by farms. Farm wastewater not only erodes a large amount of farmland, but also seriously pollutes the air and water that human beings depend on for survival. Large-scale pig farms produce the most serious wastewater pollution. One pig produces about 2.5 t / a of sewage, and a 10,000-head pig farm can discharge nearly 300,000 t / a of sewage, equivalent to 300-400 tons of ammonia and 320-570 tons of phosphorus. . With the continuous expansion of the scale and number of pig farms...

AI Technical Summary

Problems solved by technology

[0013] The treatment of aquaculture wastewater in my country mainly adopts an anaerobic-aerobic combined process, which has been proved to be effective for COD by experimental research and engineering application. Cr and SS are very effective, but the effect on nitrogen and phosphorus removal is not obvious

In practical applications, the concentration of nitrogen and phosphorus in livestock and poultry wastewater is high. It is not easy to remove, and there are problems such as low capital and low industry benefits. Therefore, the effect of nitrogen and phosphorus treatment is not good, and the sewage cannot be discharged up to standard.

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