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Chapter 1 : Water Quality (Environmental Quality (Industrial Effluent)…
Chapter 1 : Water Quality
Impact of Parameter
Environmental Quality (Industrial Effluent) Regulations 2009
Standard A
Discharge upstream of any raw water intake
Standard B
Discharge downstream of any sea water intake
Characteristics
Why Important :!:
It is important to our health and well being. We use water daily trough out in our life
Comparison
Water Quality Index (WQI)
A method that combined numerous water quality parameters into one concise and objective value representing the stae of water quality trends in a river
Environmental Quality Regulations (Industrial Effluent ) 2009
It has 2 sets of acceptable conditions for discharge effluent or mixed effluent which are standard A and B. This regulations has specific limits for COD discharge according to trade or industry
Differences
BOD
Measures biodegradable organics
Uses oxidizing microorganisms
Affected by toxic substance
5 days incubations
Accuracy plus minus 10%
COD
Measure biodegradable and non biodegradable organics
Uses strong chemical agent
Not affected
2 hours
Accuracy plus minus 2 %
