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Fluorine-containing heavy-metal-ion-containing waste water processing agent and fluorine-containing heavy-metal-ion-containing waste water processing method

A technology of heavy metal ions and wastewater treatment agents, which is applied in the fields of metallurgical wastewater treatment, textile industry wastewater treatment, water/sewage treatment, etc., can solve the problems of soil environment, river environment, groundwater environment hazards, etc., and achieve the reduction of heavy metal discharge and obvious economic benefits. Effects of Benefits and Environmental Benefits

Active Publication Date: 2016-02-24
太仓中化环保化工有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] It can be seen that in the case of a large amount of nickel-containing wastewater or in key water source areas, a large amount of nickel will still be discharged into the environment, which will affect the soil environment, rivers Potential harm to the environment and groundwater environment

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] A raw material formula and weight percentage of a fluorine-containing heavy metal ion wastewater treatment agent: 50% iron powder, 5% sodium borohydride, 0.5% biological flocculant, 0.5% non-ionic polyacrylamide, 14% Activated carbon, 15% calcium fluoride, 15% calcium chloride.

[0036] The fluorine-containing heavy metal ion wastewater comes from the wastewater of an electroplating production plant. The weight of the fluorine-containing heavy metal ion wastewater is 205g. The total nickel in the fluorine-containing heavy metal ion wastewater is 100.25mg / L, and the mass content of hydrogen fluoride is 1.0%. It can flocculate sediment. The mass content is 1.3%, and the specific removal method includes the following steps:

[0037] (1) Add 0.90 g of fluorine-containing heavy metal ion wastewater treatment agent to fluorine-containing heavy metal ion wastewater, stir and react for 5 minutes, and the reaction temperature is 30°C;

[0038] (2) Add calcium hydroxide to the fluo...

Embodiment 2

[0041] The raw material formula and weight percentage of a fluorine-containing heavy metal ion wastewater treatment agent are: 50% ferrous sulfate, 5% potassium borohydride, 0.5% biological flocculant, 0.5% non-ionic polyacrylamide, 14 % Activated carbon, 15% calcium fluoride, 15% calcium chloride.

[0042] The fluorine-containing heavy metal ion wastewater comes from the wastewater of an electroplating production plant. The weight of the fluorine-containing heavy metal ion wastewater is 205g. The total nickel in the fluorine-containing heavy metal ion wastewater is 100.25mg / L, and the mass content of hydrogen fluoride is 1.0%. It can flocculate sediment. The mass content is 1.0%, and the specific removal method includes the following steps:

[0043] (1) Add 0.57g of fluorine-containing heavy metal ion wastewater treatment agent to fluorine-containing heavy metal ion wastewater, stir and react for 5 minutes, and the reaction temperature is 30°C;

[0044] (2) Add calcium hydroxid...

Embodiment 3

[0047] The raw material formula and weight percentage of a fluorine-containing heavy metal ion wastewater treatment agent: 30% sodium sulfite, 5% potassium borohydride, 0.5% biological flocculant, 0.5% non-ionic polyacrylamide, 14% Activated carbon, 25% calcium fluoride, 25% calcium chloride.

[0048] The fluorine-containing heavy metal ion wastewater comes from the wastewater of an electroplating production plant. The weight of the fluorine-containing heavy metal ion wastewater is 205g. The total nickel in the fluorine-containing heavy metal ion wastewater is 100.25mg / L, and the mass content of hydrogen fluoride is 1.0%. It can flocculate sediment. The mass content is 1.9%, and the specific removal method includes the following steps:

[0049] (1) Add 0.57g of fluorine-containing heavy metal ion wastewater treatment agent to fluorine-containing heavy metal ion wastewater, stir and react for 5 minutes, and the reaction temperature is 30°C;

[0050] (2) Add calcium hydroxide to t...

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Abstract

The invention relates to a fluorine-containing heavy-metal-ion-containing waste water processing agent and a fluorine-containing heavy-metal-ion-containing waste water processing method. The processing agent has a formula as follows: by weight, 8%-79% of one or several selected from iron powder, ferrous sulphate, sodium sulfite and ferrous chloride, 0.1%-6% of sodium borohydride and / or potassium borohydride, 0.2%-1% of biological flocculants, 0.1%-0.8% of non-ionic polyacrylamide, 10%-40% of active carbon, 5%-30% of calcium fluoride, and 5%-30% of calcium chloride. The total nickel content in fluorine-containing heavy-metal-ion-containing waste water after processing in electroplate and printing and dyeing industries can be lowered greatly, heavy metal discharge is reduced, and the total nickel content in fluorine-containing heavy-metal-ion-containing waste water after processing of the provided processing agent is less than 0.006mg / L.

Description

technical field [0001] The invention relates to a treatment agent for waste water containing fluorine and heavy metal ions and a treatment method for waste water containing fluorine and heavy metal ions. Background technique [0002] In the production of electroplating enterprises, aluminum profile processing and other enterprises, the electroplating wastewater produced contains a large amount of nickel ions. The wastewater is usually treated by physical methods, adsorption methods, biological methods, and chemical methods. The total nickel energy in the wastewater after treatment Reach the emission standard required by the state, total nickel ≤ 1.0mg / L. [0003] For example, the application publication number is CN105000651A, and the application publication date is a kind of electroplating wastewater treatment agent on 2015-10-28, which consists of reducing agent, composite flocculant, heavy metal ion trapping agent DTCR, starch xanthate, cross-linked rector Composed of ro...

Claims

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Application Information

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IPC IPC(8): C02F3/34C02F9/14C02F101/14C02F101/20C02F103/16C02F103/30
CPCC02F1/56C02F1/66C02F1/70C02F1/705C02F3/34C02F9/00C02F2101/14C02F2101/20C02F2103/16C02F2103/30
Inventor 马腾飞王祎铖顾善文王童
Owner 太仓中化环保化工有限公司
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