Domestic sewage dephosphorizing and denitrifying device for agricultural irrigation

Abstract

The invention discloses a domestic sewage dephosphorizing and denitrifying device for agricultural irrigation. The domestic sewage dephosphorizing and denitrifying device mainly comprises an aerationassembly and a filter material assembly. The aeration assembly mainly comprises an aeration bin body, annular aeration rings and a central air distribution pipe. The annular aeration rings are arranged at a lower part in the aeration bin body, the central air distribution pipes are arranged at the center of an inner bottom surface of the aeration bin body, and the central air distribution pipe isconnected with aeration balloons arranged in built-in grooves of the annular aeration rings through air guide rings and air guide pipes. The filter material assembly comprises a plurality of groups offilter material bin bodies and a bottom groove, the filter material bin bodies are cylindrical, a rotary filter material barrel is arranged in each filter material bin body, a control assembly for controlling the rotary filter material barrels is arranged on an upper top surface of the bottom groove, and the filter material bin bodies are circumferentially arranged between the aeration bin body and the bottom groove at equal intervals and are respectively communicated with the aeration bin body and the bottom groove through the pipelines. The device provided by the invention is light and easyto use, the removal effect of nitrogen and phosphorus in biological sewage can be effectively improved, and the device is energy-saving and environment-friendly and better meets the use requirementsof agricultural irrigation.

Description

technical field [0001] The invention relates to the technical field of sewage treatment, in particular to a domestic sewage dephosphorization and nitrogen removal device for agricultural irrigation. Background technique [0002] Sewage treatment has always been the top priority of environmental protection work. With the continuous enrichment of living resources, the nitrogen and phosphorus content in our daily domestic sewage is getting higher and higher, which has seriously exceeded the discharge standard. For rural areas Domestic sewage is a huge irrigation water resource, but if the sewage cannot be treated well, the irrigation water will pollute the land, even affect the growth of crops and pollute the agricultural products, making them inedible, so now more and more More and more places pay attention to the treatment and utilization of domestic sewage in rural areas. [0003] However, in actual operation and use, the existing sewage treatment devices are generally larg...

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Problems solved by technology

[0002] Sewage treatment has always been the top priority of environmental protection work. With the continuous enrichment of living resources, the nitrogen and phosphorus content in our daily domestic sewage is getting higher and higher, which has seriously exceeded the discharge standard. For rural areas Domestic sewage is a huge irrigation water resource, but if the sewage cannot be treated well, the irrigation water will pollute the land, even affect the growth of crops and pollute the agricultural products, making them inedible, so now more and more More and more places pay attention to the treatment and utilization of domestic sewage in rural areas

[0003] However, in actual operation and use, the existing sewage treatment devices are generally larger in size, and it is difficult for the smaller sewage treatment devices to achieve a higher effect of dephosphorization and nitrogen removal. The utilization and irrigation of sewage cause a large amount of waste of water resources and water pollution. Therefore, a new type of dephosphorization and nitrogen removal device for domestic sewage is needed to solve the above problems

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