Air and Water

Exploring the: Air and Water Zone

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Published: 1/1/2008

Evaporation Water Loss
Do you know of any papers or charts that give water evaporation rates? We have an opportunity to reduce our cleaner tank temperature from 180 to 80°F and want to know how much water we can save.

Published: 11/1/2007

Plating Line Conversion
What impact would zinc nickel have on our wastewater treatment system? Are there any other environmental issues?

Published: 11/1/2007

Palladium Reclamation
What is the best way to treat this rinse water to reclaim the palladium? I’ve heard reclaiming palladium can be costly. Is it even worthwhile to treat this rinse water?

Published: 9/1/2007

Nitrite Violation
Can the city issue a notice of violation for something not in our permit? And is there an easy way to remove nitrites from wastewater?

Published: 9/1/2007

Acid Nickel Recovery
I’m searching for a qualified supplier of an acid nickel recovery system for our plating rinse water.

Published: 9/1/2007

Leaky Joints in Wastewater Piping
Looks like our replacement project failed. Before we try again, do you have experience with this issue?

Published: 7/1/2007

Incinerator Needed for Lead-Free E-Coat?
My question is this: Do we still need to run this incinerator since we aren’t producing anything that would harm the environment, or can we at least turn the temperature down? We currently run it at 1200°F. I have asked, but nobody seems to know.

Published: 7/1/2007

Little change, big Results
Now our wastewater treatment operator pays much more attention to the firmness quality of the sludge, and we send out a sludge sample for total solids analysis on a monthly basis. Over the last several years, our annual sludge analysis for TCLP chro...

Published: 5/1/2007

Changing from Lime To Magnesium Hydroxide
We are considering switching to magnesium hydroxide since jar tests performed by a chemical supplier indicate a 30% reduction in filter press cake at a pH of 8.5. Our flow consists of 2/3 tumbling and 1/3 nickel-chrome plating with a combined flow o...

Published: 5/1/2007

Defining RCRA-Hazardous Waste
One company said since our waste stream had a lead concentration of 40 mg/liter and this is over the TCLP threshold of five mg/liter, it is a RCRA-hazardous waste and gave us a quote from transportation and disposal as such. The other company claime...