Sludge-free biologic ball ultra-clean sewage treatment method and system

Abstract

The invention discloses a sludge-free biologic ball ultra-clean sewage treatment method and a sludge-free biologic ball ultra-clean sewage treatment system, belonging to the technical field of sewage treatment. The sewage treatment method comprises the following steps: (1) selecting sand balls as biologic film packing, and setting the number of biologic reaction tanks and the total volume of biologic nests; (2) correspondingly setting the concentration of dissolved oxygen provided by an aeration device according to the volume of biologic nests inside each biologic reaction tank; (3) feeding a fixed amount of composite bacteria into each biologic reaction tank, covering and exposing for days, feeding a small amount of composite bacteria every other day, and continuously feeding for days, wherein the water needs to be stopped for hours and subsequently is fed after the bacteria are fed each time; (4) after a biologic film is generated, continuously feeding the water for sewage treatment. The invention further discloses the sludge-free biologic ball ultra-clean sewage treatment system. By adopting the method and the system, a good living environment can be established for microorganisms, all organisms, sludge and sludge residues in a sewage water body can be completely eliminated, and the water can rejoin in virtuous circle of the nature.

Description

technical field [0001] The invention relates to a sewage treatment method and system, more specifically, to a sludge-free biological ball ultra-clean sewage treatment method and system. Background technique [0002] With the acceleration of urbanization and the rapid advancement of industrialization, the pollution of groundwater, rivers and lakes by the three major pollution sources of urban domestic sewage, industrial sewage and agricultural sewage has become increasingly prominent, posing a serious threat to our life and health. At present, the problems of sewage treatment and ecological environment protection have attracted more and more attention from all walks of life, and a lot of manpower, material and financial resources are being invested in the research of sewage treatment, and many research results have also appeared. Pollutants in wastewater mainly include biodegradable organic matter, volatile organic matter, non-decomposable organic matter, heavy metals, suspen...

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Problems solved by technology

[0007] The purpose of the present invention is to overcome the existing sewage treatment methods and equipment complex, high operating costs, difficult to ensure the purification effect of the existing sludge-free sewage treatment, harsh microbial working conditions, low treatment efficiency, to provide a pollution-free The mud biosphere ultra-clean sewage treatment method and system, adopting the technical scheme of the present invention, can create a good living and working environment for microorganisms, so that all organic matter, sludge and silt in the sewage water body will eventually disappear, and re-participate in nature The virtuous cycle will not cause secondary pollution to nature; at the same time, the sewage treatment method and system of the present invention have strong adaptability to changes in water volume, water quality and water temperature, and the sewage treatment effect is good and has good nitrification function and high treatment efficiency. , Good impact load resistance, small footprint, low power cost, easy operation and management, especially suitable for domestic sewage treatment

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