Thang Loi restaurant domestic wastewater treatment system

Investor: Thang Loi Restaurant



Long Xuyen city, An Giang province

Wastewater type

Domestic wastewater


10 m3/ day.night


[(Canteen wastewater -> Grease separation) + (Domestic wastewater -> Septic tank)] -> Collection -> Equalization -> Aerobic -> MBR membrane -> Disinfection -> Biological pond -> Receiving source

Standard after treatment

QCVN 14:2008/BTNMT, column A

Completed time


Project explanation

Collection tank:   Collect all the wastewater on the channel leading to the treatment system.

Conditioning tank: Stabilize flow, contaminant concentration, pH. Preliminary ventilation to avoid anaerobic decomposition causing odors.

Aerobic tank:  The amount of gas supplied to the device for the purposes of: (1) providing oxygen for aerobic microorganisms to convert dissolved organic matter into water and carbon dioxide, organic nitrogen and ammonia into nitrate NO3-, (2 ) evenly mix wastewater and activated sludge to create favorable conditions for microorganisms to come into good contact with the substrates to be treated, (3) release gases that inhibit the microbial life process, These gases are generated. in the process of microorganisms breaking down pollutants,

(4) positively affects the reproduction process of microorganisms.

MBR Membrane: Enhanced air is brought in by an air supply through the piping systems at the bottom of the module, ensuring an adequate supply of oxygen for microbial life to decompose organic compounds in wastewater. .

Disinfection tank:  Contact with Chlorine to completely destroy  Coliforms and other disease-causing germs, the treated water meets discharge standards into the receiving source.

Biological ponds:   Stabilizes the water flow and further reduces pathogenic microorganisms. The water in the pond is pumped and reused for irrigation of plants and roads.

Project images

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