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Electroplating wastewater treating agent

A technology for electroplating wastewater and treatment agent, which is applied in the fields of metallurgical wastewater treatment, water/sewage treatment, reductive water/sewage treatment, etc. Settling velocity, easy-to-produce effect

Inactive Publication Date: 2017-02-01
ZHENJIANG HEYUN IND WASTEWATER DISPOSAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Using such a wastewater treatment agent to treat electroplating wastewater requires a large amount, which makes the electroplating wastewater treatment process long, occupies a lot of land, requires a large investment, consumes a lot of energy, is difficult to operate and manage, has high labor intensity, and high operating costs. Handling runs stably

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] A treatment agent for electroplating wastewater, comprising the following components in parts by weight,

[0018] Reducing agent: 10 parts of sodium sulfide, 5 parts of ferrous sulfate, 5 parts of sodium metabisulfite;

[0019] Alkaline substances: 20 parts of sodium hydroxide, 20 parts of potassium hydroxide, 10 parts of calcium hydroxide;

[0020] Metal ion trapping agent: 30 parts of disodium edetate;

[0021] Chromium nitrate, 10 parts;

[0022] n-octanal, 10 parts;

[0023] Graphene, 5 parts;

[0024] Starch xanthate, 5 parts;

[0025] Flocculant, 10 parts of chitosan, 20 parts of ferrofluid ferric oxide;

[0026] gangue, 3 parts.

Embodiment 2

[0028] A treatment agent for electroplating wastewater, comprising the following components in parts by weight,

[0029] Reducing agent: 10 parts of sodium sulfide, 10 parts of ferrous sulfate, 5 parts of sodium metabisulfite;

[0030] Alkaline substances: 25 parts of sodium hydroxide, 30 parts of potassium hydroxide;

[0031] Metal ion trapping agent: 35 parts of disodium edetate;

[0032] Chromium nitrate, 12 parts;

[0033] n-octanal, 12 parts;

[0034] Graphene, 8 parts;

[0035] Starch xanthate, 8 parts;

[0036] Flocculant, 11 parts of chitosan, 22 parts of ferrofluid ferric oxide;

[0037] gangue, 4 parts.

Embodiment 3

[0039] A treatment agent for electroplating wastewater, comprising the following components in parts by weight,

[0040] Reducing agent: 10 parts of sodium sulfide, 10 parts of ferrous sulfate, 10 parts of sodium metabisulfite;

[0041] Alkaline substances: 20 parts of sodium hydroxide, 20 parts of potassium hydroxide, 20 parts of calcium hydroxide;

[0042] Metal ion trapping agent: 40 parts of disodium edetate;

[0043] Chromium nitrate, 15 parts;

[0044] n-octanal, 15 parts;

[0045] Graphene, 10 parts;

[0046] Starch xanthate, 10 parts;

[0047] Flocculant, 13 parts of chitosan, 26 parts of ferrofluid ferric oxide;

[0048] Coal gangue, 5 parts.

[0049] The present invention has at least the following advantages:

[0050] The electroplating wastewater treatment agent of the invention has easy to obtain raw materials, is easy to prepare, has low cost, has strong ability to treat electroplating comprehensive wastewater, is convenient to use, can accelerate the sedi...

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PUM

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Abstract

The invention discloses an electroplating wastewater treating agent, which is prepared from the following components in parts by weight: 20 to 30 parts of reducing agent, 50 to 60 parts of alkaline matter, 30 to 40 parts of metal ion trapping agent, 10 to 15 parts of chromic nitrate, 10 to 15 parts of n-octyl aldehyde, 5 to 10 parts of graphene, 5 to 10 parts of starch xanthate, 30 to 40 parts of flocculating agent and 3 to 5 parts of coal gangue. The electroplating wastewater treating agent provided by the invention is easily obtained in raw materials, is easy to make, is low in cost, is high in the capacity of treating comprehensive electroplating wastewater, and is further convenient to use; the settling velocity of heavy metal ions can be quickened; the removal rate of the heavy metal ion reaches 99 percent.

Description

technical field [0001] The invention relates to a treatment agent, in particular to an electroplating wastewater treatment agent. [0002] technical background [0003] The sources of electroplating wastewater are generally: (1) plating cleaning water; (2) waste electroplating solution; (3) other wastewater, including washing the floor of the workshop, scrubbing plate washing water, condensed water from ventilation equipment, and leakage from plating tanks. Or various tank liquids and drainages of "running, popping, dripping, and leaking" caused by improper operation and management; (4) Equipment cooling water, which has not been polluted except for the temperature rise during use. The water quality and quantity of electroplating wastewater are related to the process conditions of electroplating production, production load, operation management and water use methods and other factors. The water quality of electroplating wastewater is complex and its composition is difficult ...

Claims

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Application Information

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IPC IPC(8): C02F1/00C02F1/70C02F1/52C02F103/16C02F101/20
CPCC02F1/00C02F1/5263C02F1/70C02F2101/20C02F2103/16
Inventor 许怡彭勇范永锋
Owner ZHENJIANG HEYUN IND WASTEWATER DISPOSAL CO LTD
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