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-----Treatment of chrome waste from chromic acid manufacturing
Q. Treatment of waste obtained while manufacturing chromic acid (Chromium Trioxide. Chromic acid is manufactured from sodium bicromate).
Please let us if we can treat the waste obtained from chromic acid plant
Munish KapoorChemical manufacturer - Ludhiana, Punjab, INDIA
2003
A. You try to search the method of ion exchange.
SE DO JANG- Korea
2003
A. Mr Kapoor,
Please follow the same process plating units use for hexavalent Cr bearing waste water, and if you wish to recover the water and maintain zero discharge status, use membranes to remove final traces of all the pollutants.
Regards,
Asif Nurie [deceased]
- New Delhi, India
With deep regret we sadly advise that Asif passed away on Jan 24, 2016
2003
Q. Wish to know treatment of waste generated from manufacturing of sodium dichromate and chromic acid
Pradyot Pisechemical manufacturer - Nagpur, Maharashtra, India
May 16, 2008
Q. How do I dispose of potassium dichromate, sulfuric acid mixture?
June Lilian- Darwin, Australia
May 9, 2018
A. Hi June. The answer depends on whether you are a chemistry teacher at a school, trying to dispose of a few test tubes or a beaker [beakers on eBay or Amazon [affil link] ; or whether you are from a plating shop using this solution; or from a manufacturer of potassium dichromate chemicals.
Potassium dichromate is toxic and carcinogenic and must not only be treated properly for disposal, but this usually must be done in accordance with specific regulations depending on the industry that you are in.
Topics 12215 and 33822 and 45227 address the technology/methodology of chrome wastewater treatment if that is your main interest. Good luck.
Regards,
Ted Mooney, P.E. RET
Striving to live Aloha
finishing.com - Pine Beach, New Jersey
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