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Treatment method of heavy metal waste water

A treatment method and technology for heavy metals, applied in water/sewage multi-stage treatment, water/sludge/sewage treatment, chemical instruments and methods, etc., can solve the problems of less heavy metal content reduction and inconspicuous treatment effect, and achieve reduction Effect of Pollution Level

Inactive Publication Date: 2014-07-23
SUZHOU YUFAN NEW MATERIAL TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Technical problem to be solved: After the conventional wastewater treatment method containing mercury, nickel, and copper, the content of various heavy metals decreases less, and the treatment effect is not obvious

Method used

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  • Treatment method of heavy metal waste water

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Effect test

Embodiment 1

[0012] A method for treating heavy metal wastewater, the treatment steps are as follows: (1) Add aluminum tripolyphosphate and carbon black powder to the heavy metal wastewater, the weight of aluminum tripolyphosphate is 3.2wt% of the weight of heavy metal wastewater, and the weight of carbon black is 3.2wt% of the weight of heavy metal wastewater 2.0wt% of the wastewater weight; (2) After adding aluminum tripolyphosphate and carbon black, mechanically stir the heavy metal wastewater, the stirring speed is 80rpm, and the stirring time is 15min; (3) Clarify after the stirring is completed, and take the supernatant; ( 4) After taking the supernatant, put the activated CD-180 macroporous adsorption resin on the heavy metal wastewater, the weight ratio of the supernatant to the wet resin is 10:1, and the sample loading flow rate is 1BV / h; (5) Collect the effluent , and then put the effluent on the D113 cation exchange resin, the ratio of sample volume to resin weight is 6:1, and th...

Embodiment 2

[0014] A treatment method for heavy metal wastewater, the treatment steps are as follows: (1) Add aluminum tripolyphosphate and carbon black powder to the heavy metal wastewater, the weight of aluminum tripolyphosphate is 3.4wt% of the weight of heavy metal wastewater, and the weight of carbon black is 3.4wt% of the weight of heavy metal wastewater 1.5wt% of the wastewater weight; (2) After adding aluminum tripolyphosphate and carbon black, mechanically stir the heavy metal wastewater, the stirring speed is 90rpm, and the stirring time is 20min; (3) Clarify after the stirring, and take the supernatant; ( 4) After taking the supernatant, put the activated CD-180 macroporous adsorption resin on the heavy metal wastewater, the weight ratio of the supernatant to the wet resin is 10:1, and the sample loading flow rate is 2BV / h; (5) Collect the effluent , and then put the effluent on the D113 cation exchange resin, the ratio of sample amount to resin weight is 6:1, and the sample flo...

Embodiment 3

[0016] A method for treating heavy metal wastewater, the treatment steps are as follows: (1) Add aluminum tripolyphosphate and carbon black powder to heavy metal wastewater, the weight of aluminum tripolyphosphate is 3.5wt% of the weight of heavy metal wastewater, and the weight of carbon black is 3.5wt% of the weight of heavy metal wastewater 1.7wt% of the wastewater weight; (2) After adding aluminum tripolyphosphate and carbon black, mechanically stir the heavy metal wastewater, the stirring speed is 85rpm, and the stirring time is 25min; (3) Clarify after stirring, and take the supernatant; ( 4) After taking the supernatant, put the activated CD-180 macroporous adsorption resin on the heavy metal wastewater. The weight ratio of the supernatant to the wet resin is 10:1, and the flow rate of the sample is 2.5BV / h; (5) Collect the outflow Then put the effluent on the D113 cation exchange resin, the ratio of sample volume to resin weight is 6:1, and the sample loading flow rate ...

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Abstract

The invention discloses a treatment method of heavy metal waste water. The method comprises the following treatment steps: (1) adding aluminum triphosphate and carbon black powder into the heavy metal waste water to treat waste water; (2) after adding aluminum triphosphate and carbon black, stirring; (3) after stirring, clarifying and taking supernatant out; (4) after taking the supernatant out, loading the heavy metal waste water onto an activated CD-180 macroporous adsorption resin; (5) collecting an effluent, and loading the effluent onto a D113 cation exchange resin; (6) collecting treated heavy metal effluent. In the treated heavy metal waste water, the mercury content is lowered from 233mg / L to 29-33mg / L, the nickel content is lowered from 89mg / L to 17-25mg / L, and copper ions are reduced from 66mg / L to 13-18mg / L, so that the contents of mercury, nickel and copper in the waste water are reduced remarkably, and the water quality is improved.

Description

technical field [0001] The invention relates to a method for treating waste water, in particular to a method for treating heavy metal waste water containing mercury, nickel and copper. Background technique [0002] In the process of rapid economic development, it has also brought a lot of pollution to the environment. Among them, industrial enterprises will produce a large amount of wastewater in the process of manufacturing products and equipment. The wastewater needs to be treated and can be recycled. If it is not treated, the wastewater will be discharged into the river, endangering human health. [0003] The pollution of heavy metal wastewater is relatively large. Excessive intake of heavy metals by the human body will cause various diseases. There are many treatment methods for heavy metal wastewater, and the results are good or bad. Comprehensive treatment of heavy metal wastewater to improve the water quality of wastewater is very necessary and has great potential. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/04C02F101/20
Inventor 戴晓宸
Owner SUZHOU YUFAN NEW MATERIAL TECH
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