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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?
Ask an Expert Published: 1/23/2012
Where is the Pipe Glue?
I have contacted several plumbing suppliers around me, and none of them were able to assist me in finding the glue that you recommended for CPVC pipe or the pipe tape. We are seeing exactly what you were talking about on leaky pipe containing causti...
Ask an Expert Published: 10/25/2011
Nitric Acid Passivation and EH&S Impact
I am looking for safety/environmental requirements to set up a nitric acid cleaning and passivation system.
Ask an Expert Published: 8/15/2011
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.
Ask an Expert Published: 5/1/2011
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?
Ask an Expert Published: 5/1/2011
OSHA Regulations Regarding Safety Showers and Eyewash Stations
It has been brought to my attention that our two safety showers and eyewash stations are in need of repair and/or replacement. It is my desire to provide the appropriate equipment, but I could use some help on determining what is required by OSHA. K...
Ask an Expert Published: 3/21/2011
Effect of the Proposed Global Harmonization System
OSHA expects to adopt a revised Hazard Communication Standard that includes information included in the GHS in 2011. Once the rule is finalized, employers will have three years to implement the new standard. The most significant impacts upon employe...
Ask an Expert Published: 2/18/2011
Phosphates in Wastewater
I am charged with finding the sources of phosphorus in our plant. Our main process effluents are from mass finishing and washing machines. I have not found significant phosphorus in these fluids, and yet, we are close to the limit. What am I missing...
Ask an Expert Published: 1/11/2011
Decontamination of Metal Finishing Area
We have a finishing room at one of our plants, and we have outsourced the plating. We also did pickling and bright dip in the room, and we now want to decontaminate it so that we can sell the equipment, or at least dispose of it properly. Our main c...
Ask an Expert Published: 1/11/2011
Do We Have a Large Load?
We have a captive metal finishing operation and are looking at a process that will have a waste stream with 10,000 ppm Chemical Oxygen Demand at an average flow rate of 4 gal/min that will be discharging into our city’s wastewater treatment facility...
Ask an Expert Published: 1/11/2011

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