Biological flocculation and inorganic flocculation complexing agent and application thereof

A biological flocculant and inorganic flocculation technology, applied in the direction of flocculation/sedimentation water/sewage treatment, etc., can solve the problems of high nutrition of water body, achieve the effect of reducing turbidity and chromaticity, extensive practical value, and low treatment cost

Active Publication Date: 2012-04-18
ZHEJIANG SHUANGLIANG SUNDA ENVIRONMENTAL PROTECTION CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If this kind of wastewater is discharged into the water body without proper treatment, it will often cause high nutrition in the water body.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Take 1000mL of Qiantang River water, turbidity 36.5NTU, chromaticity 10.2 PCU (degrees), put it in a glass container, add 22mL of 30wt% WCF solution and 70wt% polyaluminum trichloride solution, control the pH at 6.5- Between 8.5, stir for 30 minutes, and after standing still for 1 hour, measure the turbidity and color with the M273976 turbidity / color water quality monitor. The treatment results are as follows: turbidity 2.0NTU, chromaticity 1.02 PCU, turbidity removal rate 94.5%, chromaticity removal rate 90%.

Embodiment 2

[0029] Take 1000mL of Taihu Lake water, turbidity 68NTU, chromaticity 80.3 PCU, put it in a glass container, add 25mL of 32wt% WCF solution and 68wt% polyaluminum trichloride solution, control the pH between 6.5-8.5, Stir for 30min, stand still for 1h, and measure turbidity and chromaticity with M273976 turbidity / colorimetric water quality monitor. The treatment results are as follows: turbidity 4.76 NTU, chromaticity 9.64 PCU, turbidity removal rate 93%, chromaticity removal rate 88%.

Embodiment 3

[0031] Take 1000mL of influent raw water from a waterworks in Hangzhou, turbidity 32NTU, chromaticity 8.7 PCU, put it in a glass container, add 25mL of 24wt% WCF solution and 76wt% polyaluminum trichloride solution to control the pH Between 6.5-8.5, stir for 30min, stand still for 1h, and measure the turbidity and chromaticity with the M273976 turbidity / chromaticity water quality monitor. The treatment results are as follows: turbidity 2.3NTU, chromaticity 0.83 PCU, turbidity removal rate 92.8%, chromaticity removal rate 90.5%.

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PUM

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Abstract

The invention relates to the technical field of environmental protection, and discloses a biological flocculation and inorganic flocculation complexing agent, which comprises a WCF bioflocculant and polymeric aluminum chloride. A complexing agent solution comprises 10-45wt% of WCF solution and 65-85 wt% of polymeric aluminum chloride solution. The biological flocculation and inorganic flocculation complexing agent can be used for treating high-turbidity eutrophicated river and lake water, and can effectively reduce the turbidity and chroma of the river and lake water, the effects are obvious,the removal rates of turbidity and chroma can reach above 90 %, the treatment cost of water is lower, and the biological flocculation and inorganic flocculation complexing agent has wide practical value.

Description

technical field [0001] The invention relates to the technical field of environmental protection, in particular to a compound agent of biological flocculation and inorganic flocculation, which is applied to treat highly turbid and eutrophic river and lake water, and reduce the turbidity and chroma of river and lake water. Background technique [0002] Eutrophication is a phenomenon in which water quality deteriorates due to the proliferation of plants, especially algae. Eutrophic wastewater is characterized by a lot of solid suspended matter, abnormal color, smell, and taste, a lot of pathogens, high biochemical oxygen demand and chemical oxygen demand, high nitrogen and carbon content, and little or even zero dissolved oxygen. , The content of organic matter is high, and the content of phosphate, potassium salt and sulfide is relatively high. If this kind of wastewater is discharged into the water body without proper treatment, it will often cause high nutrition in the wate...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F1/52
Inventor 荆政郑展望何欢苏玉刚周晓云
Owner ZHEJIANG SHUANGLIANG SUNDA ENVIRONMENTAL PROTECTION CO LTD
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