Pollution Control
Phosphating on Differing Surfaces
Question: Is a smooth surface better for phosphating or a rough one?
Read MoreOxidation Under Paint
Question: We clean our steel parts and use a phosphating process for pretreatment.
Read MoreIn Search of a Polymeric Coating
Question: I have an application that needs a 0.005-0.006-inch thick insulative coating on an aluminum sheet metal part.
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MON MACT Impact
The clock is ticking for paint and coating operations to reduce HAP emissions and meet EPA guidelines.
Read MoreWastewater Discharge—Cyanide Excursions
Our plant is experiencing wastewater discharge permit excursions on its limits for Total Cyanide as regulated by our very small town. I have about run out of places to look or things to test for and would appreciate any suggestions you have.
Read MoreWastewater Discharge Non-Compliance
Question: We operate a metal fabrication shop with our own five-stage iron phosphate washer.
Read MoreNon-hazardous Waste Becomes Hazardous Revisited
Question: Steve, your column in the September 2005 issue, non-hazardous waste has become hazardous, in which you describe how changes in process and wastewater pretreatment chemistry can have a profound impact upon the filter press cake’s status as a RCRA hazardous or non-hazardous waste reminded me of a situation we had about 10 years ago.
Read MoreCleaning Copper Parts
Question: Some of our copper parts, which have been cleaned but not protected by a chemical reagent but cased by vacuum bag, take on a bad appearance after three days.
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RoHS and ELV Compliant Electroless Nickel
Over the past few years, a number of new environmental directives have come out of Europe and Asia encompassing mainly the automotive and electronics industries.
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