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Circuit-board waste-water reutilizing process of reducing waste

A circuit board and waste water technology, which is applied in the direction of water/sewage multi-stage treatment, water/sludge/sewage treatment, osmosis/dialysis water/sewage treatment, etc., can solve the problems of waste reduction and reuse of waste water without circuit boards, and achieve High recovery rate, low operating cost, and the effect of recycling water resources

Active Publication Date: 2007-11-14
DONGGUAN DONGYUAN ENVIRONMENTAL TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, there is no treatment process for waste reduction and reuse of circuit board wastewater

Method used

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  • Circuit-board waste-water reutilizing process of reducing waste
  • Circuit-board waste-water reutilizing process of reducing waste
  • Circuit-board waste-water reutilizing process of reducing waste

Examples

Experimental program
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Effect test

Embodiment Construction

[0025] Below in conjunction with technology, take 1500CMD as an example to further illustrate the present invention:

[0026]

[0027]

[0028] The waste water from the circuit board workshop is introduced into the mixing pool separately, enters the pH adjustment pool to adjust the pH value, and then enters the buffer pool. After sedimentation in the sedimentation tank, it enters the intermediate pool and is pre-treated and filtered by microfilters and ultrafilters, and then passes through the recovery system. , the quality of the effluent can reach a conductivity of less than 20us / cm 2 , the water quality does not contain particles larger than 10 microns, the PH is neutral, and can be reused in the workshop as production water; the sludge in the sedimentation tank is dehydrated and treated outsourced; the high-COD wastewater is discharged through the wastewater treatment system to meet the standard; acid-base system, water washing , and complex wastewater is introduced ...

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PUM

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Abstract

The aim of this invention is to fill up above described blank and supplies a breadboard wastewater reclaiming craft. The aim is accomplished by follows technical proposal: partly introduce each wastewater department of breadboard workshop to mixing pool, through precipitation, then takes pretreatment filtration by microfilter and ultrafilter, then pass recovery system, the water quality can reach standard that conductivity less than 20us / sq cm, and has no particle that greater than 10 micrometer, PH is neutrality, can reclaim to workshop for water of productive using; flow tank sludge after dewatering is disposed by other departments.; high COD wastewater through this system can reach discharging standard; acid and alkali department, water washing, and complexation wastewater after precipitation is introduced to mixing pool, sludge after dewatering is disposed by other departments.

Description

technical field [0001] The invention relates to a process for waste reduction and reuse of waste water, in particular to a process for waste reduction and reuse of circuit board waste water Background technique [0002] The electronics industry is an important part of the cultural industry. Economic development and the development of the electronics industry will inevitably require the circuit board industry to adapt to it. Many places have identified the electronics industry as an urban industry, which has enhanced the important position of circuit boards in the regional economy; however, the environmental pollution caused by the circuit board industry is also very serious. A double-sided multi-layer circuit board production enterprise, including Made, per 1m produced 2 The water consumption of double-layer boards is usually 3 tons. 20,000 m / month 2 The monthly water consumption of the double-storey factory is 60,000 tons. According to statistics, there are more than 1,0...

Claims

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Application Information

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IPC IPC(8): C02F9/02C02F1/44C02F1/52
Inventor 肖应东
Owner DONGGUAN DONGYUAN ENVIRONMENTAL TECH CO LTD
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