Comparison of Effluent Quality before and after Process Modification

Parameter Old Quality New Quality

Water usage (L/min) 570 38

Suspended solids (mg/L) 30 20

Dissolved solids (mg/L) 1500 800

Source: From UNIDO, Case Studies of Cleaner Production and Site Remediation, Training Manual DTT-5-4-95, United Nations Industrial Development Organization, Industrial Sectors and Environment Division, Vienna, Austria, April 1995.

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