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Industrial wastewater flocculating agent

A technology of industrial wastewater and flocculants, applied in the direction of flocculation/sedimentation water/sewage treatment, water/sewage treatment, adsorption water/sewage treatment, etc., can solve the problem of high chroma, harm to human health, damage to water, soil and its ecology Environmental and other issues, achieve good adsorption effect, reduce COD value and BOD value, and effectively remove the effect

Inactive Publication Date: 2015-01-28
QINGDAO BAIZHONG CHEM TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The two major pollution indicators are chroma and COD. The chroma is high, and the difficulty of decolorization is the difficulty in the treatment of printing and dyeing wastewater.
If such waste water is discharged directly without treatment or after treatment without reaching the discharge standard, it will not only endanger people's health, but also seriously damage the water body, soil and its ecological environment.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0011] A flocculant for industrial wastewater comprising the following components: 5 parts of polyferric chloride, 4 parts of aluminum sulfate, 1 part of polyoxyethylene, 1 part of barium carbonate, and 5 parts of cross-linked chitosan microspheres .

[0012] The usage amount of the industrial wastewater flocculant is 0.6g / L. The adsorption effect of the industrial wastewater flocculant is good, can effectively remove the suspended matter in the industrial wastewater, reduce the COD value and BOD value in the industrial wastewater, wherein the COD value is 56mg / L, BOD 5 The value is 28mg / L, and the industrial wastewater reaches the national industrial water discharge standard.

Embodiment 2

[0014] An industrial wastewater flocculant, comprising the following components: 10 parts of polyferric chloride, 6 parts of aluminum sulfate, 4 parts of polyoxyethylene, 4 parts of barium carbonate, and 8 parts of carboxymethyl chitosan.

[0015] The usage amount of the industrial wastewater flocculant is 0.8g / L. The industrial wastewater flocculant has a good adsorption effect, can effectively remove suspended matter in industrial wastewater, and reduce the COD value and BOD value in industrial wastewater, wherein the COD value is 55mg / L, BOD 5 The value is 25mg / L, and the industrial wastewater meets the national industrial water discharge standard.

Embodiment 3

[0017] An industrial wastewater flocculant, said industrial wastewater flocculant comprising the following components: 8 parts of polyferric chloride, 5 parts of aluminum sulfate, 3 parts of polyoxyethylene, 3 parts of barium carbonate, sodium tripolyphosphate cross-linked chitosan 7 servings.

[0018] The usage amount of the industrial wastewater flocculant is 1.0g / L. The industrial wastewater flocculant has a good adsorption effect, can effectively remove suspended matter in industrial wastewater, and reduce the COD value and BOD value in industrial wastewater, wherein the COD value is 53mg / L, BOD 5 The value is 26mg / L, and the industrial wastewater reaches the national industrial water discharge standard.

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PUM

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Abstract

The invention discloses an industrial wastewater flocculating agent, and belongs to the field of environmental protection. The industrial wastewater flocculating agent comprises 5-10 parts of polyferric chloride, 4-6 parts of aluminum sulfate, 1-4 parts of polyoxyethylene, 1-4 parts of barium carbonate and 5-8 parts of a chitosan derivative. The industrial wastewater flocculating agent has a good adsorption effect, can effectively remove suspending substances in industrial wastewater, and reduces the COD value and the BOD value in the industrial wastewater in order to make the industrial wastewater reach national industrial water discharge standards.

Description

technical field [0001] The invention belongs to the field of environmental protection, and in particular relates to an industrial wastewater flocculant. Background technique [0002] With the development of the textile printing and dyeing industry, the discharge of printing and dyeing wastewater is increasing. Printing and dyeing wastewater has the characteristics of high chemical oxygen demand (COD), biochemical oxygen demand (BOD), and high chroma. The two major pollution indicators are chroma and COD. High chroma and difficult decolorization are the difficulties in the treatment of printing and dyeing wastewater. If such waste water is discharged directly without treatment or after treatment without reaching the discharge standard, it will not only endanger people's health, but also seriously damage the water body, soil and its ecological environment. Adsorption is a widely used method at present. Adsorption treatment of sewage has the advantages of convenient operati...

Claims

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Application Information

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IPC IPC(8): C02F1/56C02F1/52C02F1/28
CPCC02F1/5236C02F1/281C02F1/285C02F1/286C02F1/5245C02F1/5263C02F1/56
Inventor 张明
Owner QINGDAO BAIZHONG CHEM TECH
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