Constituents
|
Permissible Limits
|
---|---|
BOD
|
300 ppm
|
Chlorine demand
|
15 ppm
|
Settleable solids
|
20 m1/1
|
Suspended solids
|
300 ppm
|
Ammonia nitrogen
|
30 ppm
|
Pollutant
|
Concentration
(ppm)
|
---|---|
Aluminum sulfate
|
10.0
|
Arsenic as AS
|
0.1
|
Barium
|
2.0
|
Boron as B
|
1.0
|
Cadmium as Cd
|
0.2
|
Chromium (hexavalent)
|
0.1
|
Chromium (total)
|
0.5
|
Copper as Cu
|
1.0
|
Cyanide as CN
|
2.0
|
Ether soluble matter
|
10.0
|
Iron as Fe
|
5.0
|
Lead as Pb
|
1.0
|
Mercury as Hg
|
0.01
|
Nickel as Ni
|
1.0
|
Phenols
|
0.005
|
Silver as Ag
|
0.2
|
Solenium
|
0.02
|
Total nitrogen
|
50.00
|
Total solids
|
5,000.00
|
Zinc as Zn
|
3.0
|
Oil, grease or fat
|
100.00
|