Building Effluents Standards in Thailand

No matter for which category of building you require a building permit, by using BioClean Cyclo wastewater treatment systems you comply even with the toughest water quality and effluent standards.

Parameter  Unit  BioClean Cyclo Range or Maximum Permitted Values for these Categories Method for Examination
A B C D E
1. pH - 6.6 5-9 5-9 5-9 5-9 5-9 pH Meter
2. BOD mg/l max. 2 20 30 40 50 200 Azide Modification at 20 °C, 5 days
3. Solids
  • Suspended Solids
 mg/l max. 5 30 40 50 50 60 Glass Fibre Filter Disc
  • Settleable Solids
 ml/l max. 0.1 0.5 0.5 0.5 0.5 - Imhoff Cone 1,000 cm3 1 hour
  • Total Dissolved Solid (TDS)*
 mg/l 0* 500* 500* 500* 500* - Dry Evaporation 103-105 °C, 1 hour
4. Sulfide mg/l max. 1.0 1.0 1.0 3.0 4.0 - Titration
5. Nitrogen as TKN mg/l max. 30 35 35 40 40 - Kjeldahl
6. Fat, oil and grease (FOG) mg/l max. 1.0 20 20 20 20 100 Solvent Extraction by Weight
Remarks
1. Based on: Standard Methods for the Examination of Water and Wastewater recommended by APHA : American Public Health Association, AWWA : American Water Works Associaton and WPCF : Water Pollution Control Federation
*= These values are in addition to the TDS of the water used. The value for the BioClean Cyclo is 0 because it neither reduces nor increases the TDS of the water used.
Sources for quality standard
a) Notification of the Ministry of Natural Resources and Environment : Building Effluents Standards dated November 7, B.E. 2548 (2005) published in the Royal Government Gazette, Vol. 122 Part 125 D, dated December 29, B.E. 2548 (2005)
b) Notification of the Ministry of Natural Resources and Environment issued under the Enhancement and Conservation of the National Enviromental Quality Act. dated November 7, B.E. 2548 (2005) published in the Royal Government Gazette, Vol. 122 Part 125 D, dated December 29, B.E. 2548 (2005)

Summary of Type and Sizes of Buildings Subject to Effluent Control:

Building TypeSize
ABC DE
1. Condominium 500 units or more From 100 to not greater than 500 units Less than 100 units - -
2. Hotels 200 rooms or more From 60 to not greater than 200 rooms Less than 60 rooms - -
3. Dormitories - 250 rooms or more From 50 to not greater than 250 rooms From 10 to not greater than 50 rooms -
4. Massage parlors (or equivalent) - 5,000 m2 or more From 1,000 to not greater than 5,000 m2 - -
5. Hospitals 30 beds or more From 10 to not greater than 30 beds - - -
6. Schools, Colleges, Universities, or Institutes 25,000 m2 or more From 5,000 to not greater than 25,000 m2 - - -
7. Government offices, State enterprises, International agencies, Banks, and Office Buildings 55,000 m2 or more From 10,000 to not greater than 55,000 m2 From 5,000 to not greater than 10,000 m2 - -
8. Department stores 25,000 m2 or more From 5,000 to not greater than 25,000 m2 - - -
9. Fresh food markets 2,500 m2 or more From 1,500 to not greater than 2,500 m2 From 1,000 to not greater than 1,500 m2 From 500 to not greater than 1,000 m2 -
10. Restaurants and food shops or food centers 2,500 m2 or more From 500 to not greater than 2,500 m2 From 250 to not more than 500 m2 From 100 to not more than 250 m2 Less than 100 m2

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