Efficient anaerobic baffled reactor and method for treating domestic black water

Abstract

The invention discloses an efficient anaerobic baffled reactor for treating domestic black water. The efficient anaerobic baffled reactor comprises a water inlet tank, an anaerobic baffled reactor body, a thermostatic water bath, a gas collecting pipe, a mud discharging pipe and a water outlet tank; the water inlet tank is connected to the front end of the efficient anaerobic baffled reactor body;a compartment is arranged in the anaerobic baffled reactor body; the thermostatic water bath is arranged outside the anaerobic baffled reactor body; and the tail end of the efficient anaerobic baffled reactor body is connected with the water outlet tank. Biogases generated in an efficient anaerobic fermentation process is used as domestic energy after being subjected to treatment such as dehydration; pathogenic bacteria and parasitic ovum in the black water are greatly removed by efficient anaerobic treatment, so that the black water reaches the harmless sanitary standard; the ammonization rate of the black water is increased, and the ammonia nitrogen concentration of bioavailable effective nitrogen converted from organic nitrogen is increased; and organic matters are greatly removed by an efficient anaerobic reaction, nitrogen and phosphorus nutrients are completely retained, and the harmless black water containing high-concentration nitrogen and phosphorus can be used as an organicfertilizer to be directly returned to the field after being collected by the water outlet tank.

Description

technical field [0001] The invention belongs to a sewage treatment method in the field of environmental engineering, and relates to a high-efficiency anaerobic baffle reactor for the separation of black water from rural domestic sewage sources by solar energy and electric compensation heating at a medium temperature, treatment of black water from rural domestic sewage sources, and resource utilization. [0002] technical background [0003] With the development of the concept of environmental protection, more and more people realize that domestic sewage can be fully utilized as a resource. Domestic sewage is divided into gray water and black water. Black water refers to urine, feces and toilet flushing water. Black water is characterized by high concentration of organic matter, many suspended solids, and contains a large number of pathogenic microorganisms. About 51% of domestic sewage COD, about 90% of nitrogen, more than 50% of phosphorus and most of the pathogenic microorg...

AI Technical Summary

Problems solved by technology

Due to the extensive use of chemical fertilizers and the decline in the nutrient content of manure caused by flushing toilets with water, the agricultural use rate of manure in my country has dropped sharply, and the national manure harmless treatment rate is less than 10%.

Images