how a zero discharge wastewater treatment system works
TRANSCRIPT
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How A Zero Discharge Wastewater Treatment
System WorksAries Chemical, Inc.
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This example is for a printed circuit board manufacturer.
Systems designed and built to treat both plating rinse waters and chemical etching process effluents for reuse.
Zero Discharge Closed Loop Wastewater Treatment System
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The plating rinse water is treated using an ion exchange based system.
After treatment the plating rinse water is used to replenish rinse tanks.
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The chemical etching wastewater is treated for reuse with a chemical pretreatment and microfiltration system to reduce metals levels.
This pretreated water then goes through a reverse osmosis (RO) filtration system to remove the majority of salts.
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The RO permeate is reused for chemical etching make –up and rinse waters.
A recovery RO further concentrates the salts from the primary RO and returns most flow to the primary RO feed.
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A natural gas fired high efficiency evaporator with a filter press system is used to solidify dissolved solids from the ion exchange and RO systems.
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