Method for lichenism system purification and short-term contact oxidation comprehensive processing sewerage

Abstract

The invention relates to a bacterial-algal symbiotic system and a short time contact oxidation integrated sewage treatment method comprising the following steps: 1. the sewage which flows into a sedimentation zone by an inlet pipe is conducted sedimentation and clarification treatment; 2. the sewage after primary clarification flows through the bacterial-algal symbiotic system formed by a grid anda multi-surface hollow vector on which fixed surface biofilms and bacteria-algae are adsorbed from below to above; 3. the effluent from the bacterial-algal symbiotic system is conducted aerobic degradation in an aeration contact oxidation pond, the oxygenated water is partially returned to the inlet pipe through a stripping tube; 4. the effluent from the contact oxidation zone flows into the sedimentation zone through a diversion deaeration tube, the clarified effluent is discharged by an outlet tube. The method of the invention has advantages of low energy consumption and investment, small land occupation and lower running cost, and is easy to realize the scale production and application of the equipment.

Description

technical field [0001] The invention relates to a method for purifying and short-time contact oxidation comprehensive treatment of sewage by bacteria and algae symbiosis system, which belongs to sewage biological method treatment technology, and is suitable for purification treatment of medium and low concentration sewage such as polluted landscape water, rural domestic sewage, bathing wastewater, etc. . Background technique [0002] At present, medium and low-concentration sewage mainly includes polluted landscape water, river water, dispersed domestic sewage, bathing wastewater, etc. The main treatment methods are: physical and chemical treatment methods, activated sludge / biofilm treatment methods, ecological treatment methods , land treatment methods, etc. [0003] Physical and chemical treatment methods mainly include chemical coagulation, filtration, precipitation and other treatment methods. The main mechanism is to use physical or chemical methods to remove pollutant...

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Problems solved by technology

[0010] The purpose of the present invention is to solve the shortcomings of the above-mentioned traditional biological treatment process, such as high energy consumption and large area occupied by ecological / land treatment methods, and proposes a method for the purification of bacteria and algae symbiosis system and short-term contact oxidation comprehensive treatment of sewage. The symbiotic system of bacteria and algae can produce enhanced treatment effect on sewage, and can efficiently pretreat medium and low concentration sewage in a short period of time. Only a short-term aerobic pool is installed at the back of it to meet the requirements of sewage purification treatment.

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