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A method for improving the hydrolysis and acidification of petrochemical wastewater

A technology for hydrolysis, acidification, and petrochemical wastewater, applied in the field of water treatment, can solve the problems of poor hydrolysis and acidification effect of petrochemical wastewater, and achieve the effects of increasing the mixing of mud and water, improving the mixing ratio of mud and water, and preventing sludge deposition.

Active Publication Date: 2019-01-11
JIANGSU FANGYANG WATER
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Problems solved by technology

[0006] In order to solve the problem of poor hydrolysis and acidification effect of petrochemical wastewater, the present invention proposes a method for improving hydrolysis and acidification of petrochemical wastewater in order to reduce dissolved oxygen DO and increase mud-water mixing ratio

Method used

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  • A method for improving the hydrolysis and acidification of petrochemical wastewater
  • A method for improving the hydrolysis and acidification of petrochemical wastewater
  • A method for improving the hydrolysis and acidification of petrochemical wastewater

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Embodiment

[0035] First, a partition wall is set up in the hydrolytic acidification tank, a filler bracket is arranged in the hydrolytic acidification tank, and a film filler is hung on the bracket; glucose is put in it, and the microorganisms obtain nutrients; No. 1 is placed at the front water inlet of the hydrolytic acidification tank Sampling point 1, No. 4 sampling point 4 is set at the water outlet at the rear end, and then No. 3 sampling point 3 and No. 4 sampling point 4 are evenly set in the middle, and then the dissolved oxygen DO parameters are counted. According to the dissolved oxygen DO parameters, at the same time , to observe the mud-water mixing effect and the film formation of the filler, firstly reduce the DO parameter through sludge reflux. There are four ways for sludge reflux:

[0036] First: Through the surge tank and the sludge pump, the sludge in the back section of the hydrolysis acidification tank is pumped to the front section agitator to make it mix with the s...

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Abstract

The invention discloses a method of improving hydrolytic acidification of petrochemical wastewater. The method includes following steps: step 1, arranging an elastic filler; step 2, selecting sampling points; step 3, enabling sludge to flow back to increase sludge-water mixing ratio; step 4, adjusting flowing speed and flow of sludge-water; step 5, lowering dissolved oxygen DO. The method has the advantages that biodegradability of the wastewater is improved, macromolecular organic matters are converted into micromolecular ones through film formation of the filler; the dissolved oxygen DO is lowered; deposition of sludge in a hydrolytic acidification pool is prevented effectively, the sludge-water mixing ratio is increased, and activated sludge is fully utilized; a sludge pump room intermittently enables sludge to flow back into a water incoming end of the hydrolytic acidification pool to enable ORP to be within minus 300-minus 100 mv, and hydrolytic acidification effect is optimized; according to the sampling points, realtime monitoring is performed, so that the dissolved oxygen DO of the hydrolytic acidification pool is lowered; part of the sludge discharged outside is pumped back into the water incoming end of the hydrolytic acidification pool so that sludge-water mixing effect is improved effectively; glucose is added into the water incoming end of the hydrolytic acidification pool, so that nutrient of microorganisms is increased, DO is lowered, and film formation effect is improved.

Description

technical field [0001] The invention belongs to the field of water treatment, in particular to a method for improving hydrolysis and acidification of petrochemical wastewater. Background technique [0002] The hydrolysis (acidification) treatment method is a method between aerobic and anaerobic treatment methods, and the combination with other processes can reduce treatment costs and improve treatment efficiency. According to the difference in growth rate between methanogenic bacteria and hydrolytic acid-producing bacteria, the hydrolytic acidification process controls the anaerobic treatment in the first and second stages of anaerobic treatment with short reaction time, that is, under the action of a large number of hydrolytic bacteria and acidification bacteria, the insoluble organic matter It is the process of hydrolyzing into dissolved organic matter and transforming difficult biodegradable macromolecular substances into easily biodegradable small molecular substances, t...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F3/28C02F103/36
CPCC02F3/2806C02F2103/365C02F2209/22C02F2301/04
Inventor 夏季春
Owner JIANGSU FANGYANG WATER
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