Exploring the: Waste Management Zone
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Legal Q&A: Antidumping
How do we compete with foreign governments for our automotive parts?
Guarding Against Counterfeit Parts
We have been doing a lot of defense work lately and are concerned about counterfeit parts. How can we protect ourselves?
On-Site Treatment or Off-Site Disposal
Can you provide information on a pH/precipitation system that will speed up the process of removing metals and patina chemicals from wastewater?
What is the best way to reduce hexavalent chrome to trivalent chrome from an aluminum conversion coating rinse water?
Nickel Recovery from Filter Press Cake
Is the recovery of nickel metal from waste sludge considered recycling, reusing or reclaiming?
Floating Floc Causing Issues
We are a contract finisher with anodizing, alkaline zinc plating, electrocoat and powder coat capabilities. Our processes are well-established, but a few days ago we suddenly experienced floc rising, rather than settling, in our waste treatment. Wha...
Waste Treatment for Paint Stripping
How can we remove paint sludge and color and neutralize the pH from paint stripping acid before discharging waste to a storm drain?
Spent Hydrochloric Acid
We make HCL drops out of our line and need to pump the spent acid to a holding tank. What is the best type of pump for this?
Metals Recovery from Wastewater Treatment Sludge
The sludge is green in color so we think it contains significant amount of nickel. Could we plate out the nickel?
Caustic Piping Remedies
When I reviewed our operations, I was struck by how many of our PVC and CPVC piping joints that carried either caustic for wastewater pretreatment or alkaline cleaner exhibited a crusty scale, apparently dried caustic residue.