CEPIS/OPS- Pollution limits for discharge of tennery effluents into water bodies and sewers

TANZANIA Parameter	Surface	Sewer
pH Temperature ºC Suspended solids mg/l Settleable solids ml/l BOD5 mg 02/l COD mg/l	5.5-9.0 100 30
Sulphide mg S2-/l Chrome (lll) mg/l Chrome (IV) mg/l Chrome total mg/l	0.1
Chlorides mg/l Sulphates mg/l Ammonia mg N/l TNK mg N/l Oil/grease mh/l Phenols mg/l	1000
Solvents mg/l: Hydrocarbons mg/l Nitrogenous mg/l Chlorimated mg/l

THAILAND Parameter	Surface	Sewer
pH Temperature ºC Suspended solids mg/l Settleable solids ml/l BOD5 mg 02/l COD mg/l	5.0-9.0 20-60
Sulphide mg S2-/l Chrome (lll) mg/l Chrome (IV) mg/l Chrome total mg/l	1
Chlorides mg/l Sulphates mg/l Ammonia mg N/l TNK mg N/l Oil/grease mh/l Phenols mg/l	1000 5
Solvents mg/l: Hydrocarbons mg/l Nitrogenous mg/l Chlorimated mg/l

UK Parameter	Surface	Sewer
pH Temperature ºC Suspended solids mg/l Settleable solids ml/l BOD5 mg 02/l COD mg/l	5.0-9.0 25 30-50 20-30	6.0-10.0 40 500-1000 2000-6000
Sulphide mg S2-/l Chrome (lll) mg/l Chrome (IV) mg/l Chrome total mg/l	1 0.1 1-2	2-5 0.1 1-20
Chlorides mg/l Sulphates mg/l Ammonia mg N/l TNK mg N/l Oil/grease mh/l Phenols mg/l	4000	5000 1000-1200 10-100 80 50-500
Solvents mg/l: Hydrocarbons mg/l Nitrogenous mg/l Chlorimated mg/l	none none none none	none none none none