Biological trickling filter treatment system and treatment method of domestic wastewater

Abstract

The invention discloses a biological trickling filter treatment system and treatment method of domestic wastewater. The treatment system comprises an intake water tank, wherein the intake water tank is connected with one end of an intake pipeline through a water pump, the other end of the intake pipeline is connected with a water distributing device, and a biological trickling filter is arranged under the water distributing device; the biological trickling filter comprises a box body, a plurality of effluent holes are formed at the bottom of the box body, the interior of the box body comprises a pebble layer and a plurality of zeolite packing layers filled from the bottom to the top, a scrap iron layer is uniformly spread between the adjacent two zeolite packing layers, and a microbial film is attached to each zeolite packing layer; and wastewater is pumped into the intake pipeline by the water pump and is sprinkled dropwise by the water distributing device into the biological trickling filter to carry out purifying treatment. The effluent water quality meets the first-level discharge standard of 'Discharge standard of pollutants for municipal wastewater treatment plant', water exclusion and clogging phenomena do not occur in the operational process, and artificial ventilation is not needed, so that the biological trickling filter treatment system and treatment method can be applicable to distributed treatment of wastewater in rural areas of China.

Description

technical field [0001] The invention belongs to the technical field of biological purification systems, and in particular relates to a biological trickling filter domestic sewage treatment system and a treatment method thereof. Background technique [0002] According to statistics, in recent years, the total amount of sewage discharged in my country has reached 60 billion tons per year, of which 8 billion tons per year are discharged from rural domestic sewage. 96% of the villages in my country have not set up reasonable drainage channels and sewage treatment facilities. Such a huge Domestic sewage is randomly discharged into river ditches and streams, causing serious surface water pollution, soil pollution, and even groundwater pollution. It has become the second largest source of water pollution after industrial sewage pollution. The "Thirteenth Five-Year Plan" put forward the major historical task of "focusing on the integration of urban and rural development, and further ...

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Problems solved by technology

[0004] In view of this, the present invention aims at the above-mentioned problems, and provides a biological trickling filter domestic sewage treatment system and its treatment method, which has a simple structure, easy control, low infrastructure and operating costs, a large amount of pollutant emission reduction, and a small footprint , No need for professional maintenance, can be flexibly arranged according to local conditions, suitable for the needs of the development of new rural construction in my country, and has positive promotion value

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