Method and system for treating domestic sewage in rural areas

Abstract

The invention discloses a method for treating domestic sewage in rural areas, which is characterized by comprising the following steps: step 1, a hydrolysis regulating pond is arranged for regulating the supply volume of domestic sewage; step 2, a hydrolysis tank is arranged, flexible plastic combined packings are put into the hydrolysis tank and arranged in an array, and PE (polyethylene) fiber strips for allowing microbe to perch are also arranged on the flexible plastic combined packings; step 3, a contact oxidation tank is arranged for aerobic treatment of the sewage; step 4, an aeration device is arranged for providing sufficient oxygen for the contact oxidation tank in the step 3; step 5, a setting tank is arranged for removing the phosphorus molecules in the sewage; step 6, a denitrification tank is arranged for denitrification to the sewage treated in the step 5; and step 7, the hydrolysis regulating pond, the hydrolysis tank, the contact oxidation tank, the setting tank and the denitrification tank are communicated with one another in sequence through pipelines. The invention further discloses a system for treating the domestic sewage in the rural areas.

Description

technical field [0001] The invention relates to the technical field of environmental protection, in particular to a method for treating domestic sewage in rural areas and a sewage treatment system for implementing the method. Background technique [0002] With the continuous improvement of people's living standards, the problems of water shortage and sewage discharge have become more and more prominent. At present, most of the domestic sewage in rural areas of our country is discharged directly, without taking proper treatment measures, which aggravates the pollution to the environment. Under the new policy of national sustainable development, environmental protection has been valued by governments at all levels and people across the country. It is increasingly important to thoroughly treat sewage to protect the environment on which human beings live. High-efficiency and energy-saving urban sewage Processing technology and technology have been able to play a greater role in...

AI Technical Summary

Problems solved by technology

Sewage irrigation also results in low food yields, increased pollution, and reduced nutrient content

Long-term irrigation of polluted water causes pathogens, mutagenic and carcinogenic substances to migrate into the human body through food, vegetables, fruits and other foods, seriously endangering human health

Water pollution has also caused great harm to the aquaculture industry. Water pollution has brought unprecedented challenges to the original water treatment process.

[0004] Since the establishment of a sewage treatment plant requires a lot of manpower and material resources, the cost of rural domestic sewage treatment is high, and the land occupation is large, which greatly restricts the development of sewage treatment

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