An integrated method for the treatment of waste water with strong microorganisms and the reuse of reclaimed water

Abstract

A wastewater strong microorganism treatment and reclaimed water recycling integrated method comprises a wastewater biological treatment strengthened treatment method and a wastewater deep integrated treatment method; according to the wastewater biological treatment strengthened treatment method, a microbial culture and adding device and an activation solution adding device are adopted for cultivation of strong microorganisms and biochemical treatment of domestic wastewater; according to the wastewater deep integrated treatment method, a combined biological filter device is adopted; the combined biological filter device adopted for wastewater deep integrated treatment comprises a BAF (biological aerated filter) and a rapid filter; the BAF has double functions of filtration and adsorption, the surface of filler has a large quantity of microorganisms, and an anaerobic environment, an anoxic environment and an aerobiotic environment are formed on the surface of the filler sequentially and radially; when wastewater flows by filler of the BAF, pollutants in the water are attached to the microorganisms on the surface of the filler and are gradually degraded and removed; the BAF is periodically backwashed; a filtration procedure is added after the wastewater flows by the BAF.

Description

1. Technical field [0001] The invention relates to a waste water treatment and resource recovery method, in particular to an integrated technology for the treatment of industrial waste water and municipal sewage, and the treated water can be directly reused. 2. Background technology [0002] While the economy is growing rapidly, the amount of wastewater discharge is also increasing rapidly, and the water environment pollution is a serious problem. With the gradual depletion of water resources and the increase of wastewater discharge, the prevention and control of water pollution is becoming more and more important and urgent. Experts Through unremitting efforts, a variety of water treatment methods for different wastewater have been invented, especially biochemical treatment, which is widely used in the treatment of various types of sewage because of its relatively mature technology and low operating costs. However, there are still many problems in the analysis of the operat...

AI Technical Summary

Problems solved by technology

[0003] ●Activated sludge has low activity and poor properties, the COD and BOD of the drainage cannot meet the design requirements or the discharge standard is raised, and the existing facilities cannot cope with it, resulting in excessive drainage

[0004] ●When the biofilm treatment process is used, after a period of operation, a large amount of sludge will be deposited on the filler or filter material, resulting in a decrease in the activity of the biofilm. If the filler is replaced, it will not only cost a lot, but also need to stop production

[0005] ●The discharge of excess sludge is large, the sludge dehydration treatment consumes high electricity and chemicals, and the final treatment of industrial sludge is difficult, easily causing secondary pollution, and the treatment cost is higher

[0006] ●The enterprise expands the production scale, the discharge volume increases or the concentration of the discharge increases, and the existing treatment facilities (structures and equipment) cannot meet the requirements

[0007] ●In order to achieve the purpose of reuse of reclaimed water and zero discharge, the investment and operation costs are too high

[0008] ●Sewage treatment produces stench and pollutes the surrounding environment

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