Removal of Pollutants by Lime Precipitation at Metal Processing Plant Aa

Pollutant (mg/L) Raw Wastewater Treated Effluent Percent Removal pH (pH units) 2.8 7.1 —

TSS 24 11 54

Copper 180,000 2000 99

Zinc 110,000 8700 92

Source: U.S. EPA, Development Document for Effluent Limitations Guidelines and Standards for the Aluminum Forming Point Source Category, Vols. 1 & 2, U.S. EPA, Washington, DC, 1984; U.S. EPA, Aluminum Forming Point Source Category, 2008. a Data are based on the average of three influent/effluent samples.

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DIY Battery Repair

DIY Battery Repair

You can now recondition your old batteries at home and bring them back to 100 percent of their working condition. This guide will enable you to revive All NiCd batteries regardless of brand and battery volt. It will give you the required information on how to re-energize and revive your NiCd batteries through the RVD process, charging method and charging guidelines.

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