COD of raw municipal sewage may be in the range of about _____________ mg/litre?
Found an error? Read our corrections policy and submit a sourced correction below. You can also share a useful explanation in your own words.
A. 10-May
B. 2-Jan
D. 1500-2500
Found an error? Read our corrections policy and submit a sourced correction below. You can also share a useful explanation in your own words.