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Treating agent for removing heavy metals in wastewater

A heavy metal and treatment agent technology, applied in water/sewage treatment, water/sludge/sewage treatment, flocculation/sedimentation water/sewage treatment, etc. The effect of less secondary pollution and low treatment cost

Inactive Publication Date: 2017-06-13
GUILIN RONGTONG TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, there are many chemicals used in the field of heavy metal wastewater treatment and purification in China, but the production cost is relatively high, and the actual operation is relatively cumbersome.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] The treatment agent for removing heavy metals in wastewater is prepared from the following raw materials in parts by weight (just mix them uniformly): 30 parts of traditional Chinese medicine fermentation liquid, 50 parts of persimmon tannin, 15 parts of dipotassium hydrogen phosphate, and 20 parts of sodium polyacrylate.

[0027] The preparation method of the traditional Chinese medicine fermentation liquid is as follows: Weigh the raw materials according to the following parts by weight: 25 parts of Uncaria, 40 parts of Caulis Spatholobus, 10 parts of pomegranate peel, 18 parts of duckweed, mix all the raw materials of Chinese medicine evenly, and crush them to 150 For this purpose, add water of the same quality, add 1.2% saccharomyces by weight of the raw material of traditional Chinese medicine, ferment for 2 days at 30°C, and then filter.

[0028] Take 1000mL of electroplating wastewater discharged from a factory, which contains 300mg / L copper and 38mg / L nickel, and...

Embodiment 2

[0030] The treatment agent for removing heavy metals in wastewater is prepared from the following raw materials in parts by weight (just mix them uniformly): 35 parts of traditional Chinese medicine fermentation broth, 45 parts of persimmon tannin, 20 parts of dipotassium hydrogen phosphate, and 16 parts of sodium polyacrylate.

[0031] The preparation method of the traditional Chinese medicine fermentation liquid is as follows: Weigh the raw materials according to the following parts by weight: 30 parts of Uncaria, 35 parts of Mildew Spatholobus, 15 parts of pomegranate peel, 16 parts of duckweed, mix all the raw materials of Chinese medicine evenly, and crush them to 160 For this purpose, add water of the same quality, add 0.9% saccharomyces by weight of the raw material of traditional Chinese medicine, ferment at 31° C. for 3 days, and then filter.

Embodiment 3

[0033] The treatment agent for removing heavy metals in wastewater is prepared from the following raw materials in parts by weight (just mix them uniformly): 45 parts of traditional Chinese medicine fermentation liquid, 30 parts of persimmon tannin, 25 parts of dipotassium hydrogen phosphate, and 13 parts of sodium polyacrylate.

[0034] The preparation method of the traditional Chinese medicine fermentation liquid is as follows: Weigh the raw materials according to the following parts by weight: 35 parts of Uncaria, 30 parts of Milletah, 20 parts of pomegranate peel, 13 parts of duckweed, mix all the raw materials of Chinese medicine evenly, and crush them to 170 For this purpose, add water of the same quality, add 0.8% saccharomyces by weight of the raw material of traditional Chinese medicine, ferment for 2 days at 33°C, and then filter.

[0035] Take 1000mL of electroplating wastewater discharged from a factory, which contains 290mg / L copper and 30mg / L nickel, and add 80mL ...

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PUM

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Abstract

The invention belongs to the technical field of wastewater treatment and particularly relates to a treating agent for removing heavy metals in wastewater; the treating agent is prepared from 30-60 parts of Chinese medicine fermentation broth, 20-50 parts of tannins, 15-35 parts of dipotassium phosphate, and 5-20 parts of sodium polyacrylate. The treating agent according to the invention has the advantages that various heavy metal ions can be removed at a time, a varieties of heavy metal ions can be treated, the removal rate reaches 99% and above, the national specified emission standard is met, the Chinese medicine fermentation broth and tannins are natural materials and have low secondary pollution caused to water, a treating method is simple, and treating cost is low.

Description

technical field [0001] The invention belongs to the technical field of wastewater treatment, and in particular relates to a treatment agent for removing heavy metals in wastewater. Background technique [0002] Heavy metal wastewater, heavy metal wastewater refers to the wastewater containing heavy metals discharged from industrial production processes such as mining and metallurgy, machinery manufacturing, chemical industry, electronics, and instrumentation. Heavy metal (such as copper, cadmium, nickel, mercury, zinc, chromium, etc.) wastewater is one of the most serious environmental pollution and one of the most harmful industrial wastewater to humans, and its water quality and quantity are related to the production process. The human demand for water resources is expanding at an alarming rate, and at the same time, the increasingly serious water pollution is devouring a large amount of water resources available for consumption. Human beings all over the world are paying...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F1/00C02F1/56C02F5/10C02F101/20
Inventor 佘延英
Owner GUILIN RONGTONG TECH CO LTD
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