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Coking wastewater treatment system and method

A technology for coking wastewater and treatment methods, applied in chemical instruments and methods, water/sewage multi-stage treatment, water/sludge/sewage treatment, etc., can solve the problems of organic pollutants that are difficult to meet standards and have no degradation effect, and achieve Good effluent quality, simple structure and strong nitrification ability

Inactive Publication Date: 2011-08-17
上海膜达克环保工程有限公司
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Problems solved by technology

[0006] However, with this technology, some organic pollutants in the effluent are difficult to meet the standards, especially for some organic pollutants, which have almost no degradation effect

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  • Coking wastewater treatment system and method

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Embodiment Construction

[0035] see figure 1 , is a schematic structural view of the coking wastewater treatment system involved in the present invention. Comprising a water collection well 1, an air pump 3, and a membrane bioreactor, the membrane bioreactor includes a connected aerobic sludge tank 4 and a membrane separation tank 5, and the aerobic sludge tank 4 and the water collection well 1 pass through a pipeline connection, the water collection well 1 is provided with an inlet pump, and the waste water is input in the aerobic sludge tank 4, and an air pump 3 is also provided, and the pipeline connecting the air pump 3 leads to the bottom of the aerobic sludge tank 4, and the water pumped out by the air pump 3 Gas (mainly oxygen) is fed into the aerobic sludge tank 4 . The aerobic sludge tank 4 receives the dominant bacterial species 2 at the same time. The aerobic sludge tank 4 and the membrane separation tank 5 are connected by a pipeline, and the pipeline is arranged at the bottom of the aer...

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Abstract

The invention discloses a coking wastewater treatment system and method. The method comprises the steps of preparing dominant bacteria and putting the dominant bacteria into a membrane bioreactor, wherein the membrane bioreactor comprises an aerobic activated sludge tank and a membrane separation tank. The method specifically comprises the following steps: (1) taking aerobic activated sludge out of a coking wastewater discharge port; (2) acclimating, separating and purifying the aerobic activated sludge obtained in the step (1), thereby obtaining the dominant bacteria; (3) putting the dominant bacteria obtained in the step (2) into an aerobic sludge tank to react; and (4) after the wastewater, which is subjected to degradation reaction, enters a membrane separation tank, carrying out sludge-water separation. The invention efficiently removes specific organic pollutants in the coking wastewater by using the active dominant bacteria, thereby achieving the goal of degrading organic pollutants in a simple, efficient and quick way, so that the wastewater can be discharged after reaching the standard.

Description

technical field [0001] The invention relates to a biological treatment method for industrial wastewater, in particular to a coking wastewater treatment method. [0002] The invention also relates to a bioreactor used in the biological treatment method of industrial wastewater, in particular to a coking wastewater treatment system. Background technique [0003] For many industrial wastewaters, such as oilfield wastewater, papermaking wastewater, coking wastewater, rubber wastewater, etc., there are many refractory organic pollutants, which are difficult to remove by traditional biological treatment processes. Generally, the physical and chemical treatment process is adopted, which not only has high equipment cost, but also high operating cost. At present, a new technology is to add high-efficiency dominant bacteria to the traditional activated sludge process to strengthen the treatment of refractory organic pollutants and improve the removal rate. High-efficiency dominant s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/14
Inventor 向阳罗春译
Owner 上海膜达克环保工程有限公司
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