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Active sludge-biomembrane compounding integral sewage treating method and apparatus

A sewage treatment method and technology of a sewage treatment device, which are applied in the field of activated sludge-biofilm composite integrated sewage treatment, sewage treatment device, sewage treatment and environmental protection, and can solve the problem of capital construction investment, large area and impact load resistance. problems such as poor capacity and low relative processing capacity, to achieve the effect of facilitating stable operation, increasing biomass, and preventing the loss of nitrifying bacteria

Inactive Publication Date: 2007-01-03
CHONGQING UNIV
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Problems solved by technology

[0003] In view of the shortcomings of the existing sewage treatment methods such as long process flow, complicated operation, low relative treatment capacity, poor impact load resistance, infrastructure investment and large floor area, the purpose of the present invention is to provide a sewage treatment capacity, impact resistance, etc. Load, simple operation, easy management, suitable for activated sludge-biofilm composite integrated sewage treatment method in small and medium-sized towns

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  • Active sludge-biomembrane compounding integral sewage treating method and apparatus
  • Active sludge-biomembrane compounding integral sewage treating method and apparatus
  • Active sludge-biomembrane compounding integral sewage treating method and apparatus

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Embodiment Construction

[0032] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0033] The activated sludge-biofilm composite integrated sewage treatment method has the following treatment steps:

[0034] 1. Introduce the sewage to be treated into the anoxic area, and keep stirring so that the sewage to be treated can be fully mixed with the activated sludge, and realize biological phosphorus release and local denitrification in this area;

[0035] 2. The sewage treated in the first step is introduced into the aeration area from the anoxic area. The aeration area is equipped with fillers, and the activated sludge grown in suspension by microorganisms is combined with the biofilm that grows fixedly. Through continuous aeration or intermittent aeration Air is used to aerate the sewage entering the aeration zone;

[0036] 3. The sewage after the second aeration treatment is introduced into the sedimentation area fr...

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Abstract

The active sludge-biomembrane compounding integral sewage treating method includes the first leading the sewage to be treated to the anoxic area through stirring for mixing sewage to be treated and active sludge, the subsequent leading the sewage to aerobic area with stuffing for aeration treatment with combined active sludge and biomembrane, and final leading the sewage to the precipitation area for natural deposition to separate sludge and water, leading out purified water, reflowing the mixed sludge liquid to the anoxic area and draining the residual sludge. The present invention also relates to the corresponding sewage treating apparatus. The present invention has the advantages of high treating capacity, resistance to impact load, simple operation, etc. and is especially suitable for use in medium and small towns.

Description

technical field [0001] The invention relates to a sewage treatment method, in particular to an activated sludge-biofilm composite integrated sewage treatment method, and also to a sewage treatment device designed according to the method, belonging to the technical field of sewage treatment and environmental protection. Background technique [0002] In recent years, with the implementation of my country's urbanization development strategy, the pace of construction of small and medium-sized towns has been significantly accelerated, and a large number of small and medium-sized towns have emerged one after another. At present, my country's small and medium-sized towns have grown to more than 20,000. While small and medium-sized cities and towns are promoting economic development, the environmental problems they bring are becoming more and more obvious, especially the sewage treatment capacity of small and medium-sized cities and towns is seriously lagging behind, and the problem...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F3/30
Inventor 郭劲松高旭方芳鲜吉成
Owner CHONGQING UNIV
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