I have searched many papers for allowable concentration of Copper and Chromium in industrial wastewater but I didn't find anything useful.
I would be so grateful if you help me with this matter.
No permissible limits for Copper (Cu) and Chromium (Cr) in waste water.
The available permissible limits in guidelines are for drinking water
Cu = 2 mg/L
Cr = 0.05 mg/L
You can use FAO reference, According FAO agricultural department, the rocommended maximum concentration of Cu and Cr are 0.20 and 0.10 mg/l. Moreover the link will be helpful for you! You can see this at table 4. Thanks.
https://scialert.net/fulltextmobile/?doi=tasr.2010.138.145&org=10
Hello.
While there are no general limits for total Cu and Cr, you should especially be on the lookout for hexavalient chromium. You will find several.
Also, by activity sector in some industries you already have them. Take a look here for example: https://www.law.cornell.edu/cfr/text/40/419.32
Cheers
To complete the good references already provided, you could find some data on typical Cu and Cr concentrations in industrial effluents in the EC BAT document on large volume inorganic chemicals at http://eippcb.jrc.ec.europa.eu/reference/BREF/lvic-s_bref_0907.pdf
and BAT for the Production of Speciality Inorganic Chemicals at http://eippcb.jrc.ec.europa.eu/reference/BREF/sic_bref_0907.pdf
Kind regards
All the maximum permissible limits can be found: http://eippcb.jrc.ec.europa.eu/reference/BREF/sic_bref_0907.pdf
Dear Meysam Shahrashoub
There are certain regulations which says about the permissible limit of chromium such as EPA, FAO, WHO in soil and water. For wastewater from industry before it discharged to the environment the chromium must be reduced to the level of 0.5 mg/L (EPA). similarly, in drinking water the amount of chromium should be less than 0.05mg/L. Several papers are also there which discusses about this.
Actually Environmental Protection agency will mainly guide industrial effluent standard of different industries and World health Organisation
is mainly followed standard .
Although both of this above
Organisation have all types of
Water quality standards .
WHO mainly standard of drinking water and Environmental Protection agency (EPA).
Cu should be 3 ppm if discharged as public sewer and surface water.Chromium as total should be 2ppm in both condition.We consider both in industrial effluent
also.
https://www.researchgate.net/.../What_is_the_WHO_or_USEPA_set_ standards_permissible_limits_for_POL
You can look in this document.
Drafted by Brunei Government
http://www.env.gov.bn/SiteCollectionDocuments/Environmental%20Guidelines/industryguideline_brunei.pdf
For effluent discharge, many countries set a Cu limit of 3 ppm. Please find the attachment for your reference.
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