Technological production method of heavy metal waste water series treatment agent

A technology of wastewater treatment agent and process method, applied in water/sewage treatment, adsorption water/sewage treatment, water/sludge/sewage treatment, etc., can solve problems such as unsatisfactory effects, improve water quality, and simplify the desorption process , the effect of strong adsorption capacity

Inactive Publication Date: 2005-03-23
工信华鑫科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, there are many technical solutions for wastewater treatment, such as: chemical drug purification treatment, ion exchange resin adsorption treatment, etc., but the effect of the above measures on the adsorption and removal of heavy metals in water is not ideal

Method used

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Examples

Experimental program
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Effect test

Embodiment Construction

[0020] The following examples can make those skilled in the art understand the processing method of the present invention more fully, but do not limit the present invention in any way:

[0021] The process for producing heavy metal wastewater series treatment agents is as follows:

[0022] Add 500 kg of raw silica gel into the corrosion-resistant stirring reaction kettle, and then add 1500 liters of one-equivalent hydrochloric acid or nitric acid from the high-level metering tank; start heating and boiling. The stirring speed is controlled below 60 rpm, so as not to damage the silica gel. Stir and pickle at the bubble point temperature for 6 hours, then pass cooling water to the jacket of the reaction kettle to cool down, and release the silica gel when the temperature of the material in the kettle drops to normal temperature. The released silica gel is filtered out in the filter washer to remove the acid solution, and then the silica gel is washed with deionized water. When ...

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PUM

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Abstract

A process for preparing the treating agent series used to treat heavy metal serial waste water includes such steps as thermal acid washing of raw silica gel, introducing the wet air from the reactor of saturated sodium (or potassium) bromide solution to the container of water vapor saturated air and silica gel to generate a water molecular layer on the surface of silica gel, silylating reaction between hydrated silica gel, hexane and siliane coupling agent to obtain silylated silica gel, graft reaction on vinylinine to obtain a treating agent for low-concentration heavy metal sewage, and reacting on vinylthioether or sodim chloriacetate to obtain the treating agent for high-toxicity or toxic heavy metal waste water.

Description

Technical field [0001] The invention belongs to metal ion treatment technology, and mainly relates to a process method for producing a series of treatment agents for heavy metal wastewater. Background technique [0002] The main function of the treatment agent provided by the present invention involves the treatment of heavy metal wastewater, that is, the adsorption and removal of heavy metals in the wastewater such as lead, cadmium, mercury, chromium, copper and other heavy metals present in the wastewater, so that the wastewater reaches the allowable concentration and total concentration of heavy metals. quantity. It can also be used for the primary recovery of heavy metal mining, the treatment of urban wastewater and industrial wastewater, and other social issues involving environmental pollution and human health. At present, there are many technical solutions for wastewater treatment, such as: chemical drug purification treatment, ion exchange resin adsorption treatment...

Claims

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Application Information

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IPC IPC(8): C02F1/28C02F1/62
Inventor 邱建宁郑宏赵路
Owner 工信华鑫科技有限公司
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