Abu Dhabi Trade Effluent Standards & Regulations Summary

Transcription

1 Abu Dhabi Trade Effluent Standards & Regulations Summary August 2010 Disclaimer: The standards & regulations provided here are attributable to the named source and are assumed to be accurate at the time of posting. This information was assembled by us as a service to our customers, but has not been independently verified or confirmed. 1

2 Trade Effluent Definition Trade effluent is defined as wastewater discharged to a sewerage system which is produced in the course of any industrial, commercial, agricultural, medical, scientific or trade activity, but does not include domestic wastewater. 2

3 Trade Effluent Discharge Characterization Chart Is Discharge from a Trade Effluent Activity? Does the Discharge Does discharge comprise any substances at pose a low risk to concentrations greater the Wastewater than typical domestic wastewater or Collection Systems? flows greater than typical domestic developments? Low risk Trade Effluent Domestic Discharge Commercial Discharge Full Trade Effluent No consent required Consent required 3

4 Trade Effluent Control Regulations 2010 Framework Low risk Trade Effluent 4

5 Impact Assessment Process (Sewerage System) Prohibited Wastes? Prohibited waste not allowed Risk of Explosion? Volatile Substances? Hazardous to Health? Standards to protect health Obstructing Substances? Standards to protect sewer system Standards to control odor potential 5

6 Impact Assessment Process (Treatment System) Any biological toxicity issues? TE Standards to minimize treatment toxicity Is TE biologically degradable? TE Standards to match capacity of Treatment Systems Standards to protect health Accumulation in sludge stream? Any anaerobic toxicity issues? TE Standards to minimize treatment toxicity 6

7 Impact Assessment Process (Disposal System) Recycled Water & Bio-solids toxic to the environment? Recycled Water & Bio-solids degradable in environment? TE Standards to meet environmental obligations Is TE biologically degradable? Refer to EAD 7

8 Substances to Be Limited Prior to Discharge to Sewer Substance Unit Maximum Allowable Characteristic Chemical Oxygen Demand mg/l 1000 Total Suspended Solids mg/l 500 Total Dissolved Solids mg/l 3000 Temperature C 45 ph unit >6 and <9 Grease & oil (hydrocarbon) mg/l 60 Grease & oil (non-hydrocarbon) mg/l 100 Max physical size of non fecal matter mm 15 Chloride (as Cl - ion) mg/l 1000 Cyanide mg/l 2 8

9 Substances to Be Limited Prior to Discharge to Sewer (Cont d.) Substance Unit Maximum Allowable Characteristic Fluoride (as F - ion) mg/l 15 Sulfate (as SO 4 ) mg/l 1000 Sulfide (as S) mg/l 2 Total Kjeldahal Nitrogen mg/l 15 Total Phosphorous mg/l 1000 Detergents mg/l 1 Phenolic Compounds (as Phenol) mg/l 150 Polycyclic Aromatic Hydrocarbons mg/l 50 Organophosphrus Pesticides mg/l 30 Organophochlorine Pesticides mg/l 0.5 9

10 Substances to Be Limited Prior to Discharge to Sewer (Cont d.) Substance Unit Maximum Allowable Characteristic Aluminum mg/l 100 Arsenic mg/l 5 Barium mg/l 10 Beryllium mg/l 5 Boron mg/l 5 Cadmium mg/l 1 Chromium mg/l 5 Cobalt mg/l 5 Copper mg/l 5 Iron mg/l 50 10

11 Substances to Be Limited Prior to Discharge to Sewer (Cont d.) Substance Unit Maximum Allowable Characteristic Lead mg/l 5 Lithium mg/l 2.5 Manganese mg/l 10 Mercury mg/l 0.5 Molybdenum mg/l 10 Nickel mg/l 10 Selenium mg/l 10 Silver mg/l 5 Tin mg/l 10 Vanadium mg/l 1 Zinc mg/l 10 11

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