sustainability
ENVIRONMENTAL SITE ASSESSMENT FOR LEASED BUILDING
Q: We are consolidating several plants into one location in order to improve our efficiencies and better serve our customers.
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Neutralizing pH
I am our facility’s environmental, health and safety manager. Periodically, we have very high-pH wastewaters that cause the pH within the cyanide oxidation step to be well above our desired upper limit of 11. Our operator has requested that we add sulfuric acid into the cyanide oxidation stage whenever the pH rises above 11. I am very concerned about the release of hydrogen cyanide if something goes wrong and the system accidentally drives the pH well below 7. Are there any safer acid substitutes?
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Plating Line Conversion
What impact would zinc nickel have on our wastewater treatment system? Are there any other environmental issues?
Read MoreAcid Nickel Recovery
I’m searching for a qualified supplier of an acid nickel recovery system for our plating rinse water.
Read MoreGreenhouse Games
Ten years ago, when the United States signed but then refused to ratify The United Nations Framework Convention on Climate Change—better known as the Kyoto Protocol, for the city in which it was negotiated—the U.S. was vilified as a bully, the world’s biggest emitter of greenhouse gases that refused to even consider reducing its output.
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Pretreatments: The Next Generation
Emerging technologies can save energy, ease environmental concerns
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