Viet Truong seafood wastewater treatment system

Investor: Viet Truong Co., Ltd



Do Son, Hai Phong Province

Wastewater type

Seafood wastewater


500 m3/ day.night


Wastewater -> Centrifugation -> Collection -> Equalization-> DAF -> UASB -> Anoxic -> Aerobic -> Sedimentation -> Disinfection -> Receiving source

Standard after treatment

QCVN 14:2008/BTNMT, column B

Completed time


Project explanation

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

Equalization tank: Stabilize flow, contaminant concentration, pH. Preliminary ventilation to avoid anaerobic decomposition causing odors.
Pressure flotation tank:  Separation of grease mixed in wastewater in two forms of “suspension and suspended sediment” by the DAF pneumatic method to float suspended particles to create surface grease. Surface degreasing by a degreaser reduces the contaminant concentration eligible for the biological treatment stage.

UASB tank:   Using anaerobic degrading microorganisms and substrates to create adhesion for microorganisms to work better, ensuring input parameters for the cluster of aerobic biological treatment tanks on the side. after working efficiently and the output water quality is satisfactory.

Anoxic + Aerobic tanks:   Alternating between anoxic and aerobic processes (slurry circulation) in the system, this allows the best treatment of Nitrogen and Phosphorus in wastewater.

The pollutant treatment efficiency is high (98%) and stable, the treatment efficiency does not change when the pollutant load (COD) increases by 20% and the flow changes by 10-15%; Ability to reduce Nitrogen and Phosphorus up to 95% when operating according to specifications; The treated water is supplied through the settling tank.

Sedimentation tank:  Separation of activated sludge, collecting clear water after biological treatment. The amount of sludge generated is partly circulated to the Aerotank, the residual sludge is brought to the sludge compaction tank.

Disinfection tank:   In contact with Chlorine to completely destroy Coliforms and other pathogenic bacteria, the treated water meets environmental standards and is discharged into the receiving source.

Project images

Ý kiến khách hàng

Thank you ARES! I have worked with many partners in the environmental field and ARES really satisfied me. The service you come to always focuses on quality and long-term companionship with customers.

Mr Ngo Minh PhuongCEO

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