Zero-discharge sewage treatment process for industrial parks

A technology for industrial parks and sewage treatment, applied in water/sewage treatment, neutralized water/sewage treatment, multi-stage water/sewage treatment, etc., can solve the problems of single function of water treatment agent, waste of resources, high cost, etc., to achieve treatment Good effect, wide range of effects

Inactive Publication Date: 2021-10-22
重庆智伦电镀有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The water treatment agent mainly used now has a single function, the sewage treatment process is complicated, the treatment period is long, and the amount

Method used

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  • Zero-discharge sewage treatment process for industrial parks
  • Zero-discharge sewage treatment process for industrial parks
  • Zero-discharge sewage treatment process for industrial parks

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0045] Such as figure 1 As shown, a treatment agent for zero-discharge sewage treatment in industrial parks is made of the following materials in parts by weight: 20 parts of polyaluminum chloride; 5 parts of lime; 20 parts of flocculant; 30 parts of adsorbate ; 25 parts of bentonite, the flocculant is powdered alum, and the particle size of the powdered alum is not more than 0.3mm, and the adsorbate is a mixture of woody activated carbon and activated alumina.

[0046] A zero-discharge sewage treatment process for industrial parks, characterized in that: the process steps are as follows:

[0047] Step 1, put alum into the sewage sedimentation tank for sedimentation, the sedimentation time is 1-2h, and then collect the bottom sediment in the sedimentation tank by sediment cleaning equipment;

[0048] Step 2. After the precipitation in step 1 is completed, add polyacrylamide for secondary precipitation. The precipitation time is 3 to 4 hours. After the precipitation is complet...

Embodiment 2

[0054] Embodiment 2 is a further improvement to Embodiment 1.

[0055] Such as figure 2 , 3 , 8, 9, 10, and 11 show a zero-discharge sewage treatment device for industrial parks. The treatment device is the sediment cleaning equipment in step 1, including a sedimentation tank 1 and a collection bucket 2. The collection bucket 2 is connected to the At the bottom end of the sedimentation tank 1, the collecting bucket 2 is connected with a sedimentation discharge mechanism, and a sedimentation cleaning mechanism is arranged in the sedimentation tank 1; the sedimentation discharge mechanism includes a set of pipelines 3, connecting pipes 4, a set of pistons 5, and a set of L-shaped connections. Rod 6, a group of movable blocks 7 and drive components, a group of pipes 3 are symmetrically distributed and their ends are all connected to the inside of the sedimentation tank 1, the connecting pipe 4 spans the two pipes 3, and the pipes 4 are connected to the two pipes 3, A group of ...

Embodiment 3

[0059] Embodiment 3 is a further improvement to Embodiment 1.

[0060] Such as Figure 4 , 5 , 6, 7, 9, 10, 11, the flocculant also includes polyacrylamide. The adsorbate consisted of 30% wood activated carbon and 70% activated alumina. The signal of the second motor 18 is connected to the controller 12, and the controller 12 can control the operation of the second motor 18, and the sedimentation tank 1 is provided with a scum cleaning mechanism. The scum cleaning mechanism comprises a plurality of L-shaped push pedals 24, and a plurality of L-shaped push pedals 24 are equidistantly distributed between two groups of chains 15, and the L-shaped push pedal 24 ends are fixedly connected with the chains 15 respectively. The number of L-shaped push plate 24 and scraper 17 is all set to three. The surface of L-shaped push plate 24 and scraper 17 is all coated with anti-rust paint layer. When the two groups of chains 15 run synchronously, a plurality of L-shaped push plates 24 r...

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Abstract

The invention discloses a zero-discharge sewage treatment process for industrial parks, belonging to the technical field of sewage treatment. A treating agent applied to zero-discharge sewage treatment for the industrial parks in the invention is prepared from the following materials in parts by weight: 20 parts of polyaluminum chloride, 5 parts of lime, 20 parts of a flocculating agent, 30 parts of adsorbate and 25 parts of bentonite, wherein the flocculating agent is powdery alum, the particle size of the powdery alum is not greater than 0.3 mm, and the adsorbate is a mixture of wooden activated carbon and activated aluminum oxide. The treating agent applied to zero-discharge sewage treatment for industrial parks has the advantages that various raw materials are compounded to play a synergistic role, and the treating agent is suitable for sewage treatment in multiple fields including oily sewage, printing and dyeing wastewater, papermaking wastewater, chemical engineering and the like and is wide in application range; treatment effect is good, effluent quality is good, and treated sewage can reach a discharge standard; and used raw materials are non-toxic and have no influence on operators, and the treated water does not have the problems of secondary pollution and the like.

Description

technical field [0001] The invention relates to the technical field of sewage treatment, in particular to a zero-discharge sewage treatment process for industrial parks. Background technique [0002] At present, there are many methods to deal with the pollution of water resources, such as physics, chemistry, biology and synthesis. The physical method is to recover the insoluble suspended pollutants in the sewage through physical separation. This method can be divided into gravity separation, centrifugal separation, etc. Although the method is simple, it can only do basic treatment, the treatment is not complete, and there are many treatment effects Poor, unstable processing rate issues. Biological treatment is to convert dissolved, colloidal and suspended organic pollutants in sewage into stable and harmless substances through the metabolism of microorganisms. However, this method requires large investment in equipment, high operating costs, and is difficult to remove heav...

Claims

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Application Information

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IPC IPC(8): C02F9/04
CPCC02F9/00C02F1/5236C02F1/56C02F1/66C02F1/281C02F2303/02C02F1/5281C02F2303/14C02F1/001
Inventor 张新恩
Owner 重庆智伦电镀有限公司
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