FUNCTIONAL FOOD PRODUCTION WASTEWATER TREATMENT

Professional Technical Solution by VIET WATER

The functional food (nutraceutical) manufacturing industry is growing rapidly in Vietnam. Along with this expansion, wastewater management becomes a critical environmental requirement. Wastewater generated from functional food production contains organic residues, proteins, starch, solvents, chemical detergents, and microbial contaminants — all of which must be treated thoroughly to avoid environmental impacts and comply with national regulations.
 

 

With more than 10 years of experience in industrial wastewater treatment, VIET WATER JSC offers turnkey solutions for manufacturing enterprises:
consulting – design – installation – operation – maintenance, ensuring high treatment efficiency, stable performance, and compliance with QCVN 40:2011/BTNMT (Column A/B).

1. Characteristics of Wastewater from Functional Food Production

Wastewater typically originates from:

• Washing raw materials, equipment, tanks, and pipelines

• Extraction, fermentation, mixing, granulation, drying

• Cleaning and sanitizing production lines

• Domestic wastewater from workers

Main pollutants:

Parameter	Concentration Range (mg/L)	Origin
BOD5	500 – 1500	Organic residues, protein, starch
COD	800 – 2500	Detergents, solvents, additives
SS	200 – 800	Fine powders, raw material residues
Total Nitrogen	30 – 80	Protein-based compounds
Total Phosphorus	10 – 30	Nutrient additives
Oil & Grease	10 – 50	Washing mixers, tanks

Key characteristics:

• Highly biodegradable organic matter

• Fluctuating concentrations

• High color and odor

• Contains nutrients (N, P) promoting microbial growth

Therefore, wastewater requires a flexible and efficient multi-stage treatment process.

 

2. Treatment Objectives

The wastewater treatment system must:

• Remove BOD, COD, SS, oil & grease, N, P

• Stabilize influent load

• Ensure treated water meets QCVN 40:2011/BTNMT

• Minimize operational cost

• Allow water reuse (floor washing, cooling water) where applicable

 

3. Recommended Treatment Diagram

 

4. Detailed Explanation of Each Treatment Stage

4.1 Screening

Removes large solids, packaging pieces, and coarse contaminants to protect pumps and downstream equipment.

4.2 Equalization Tank

Balances fluctuations in flow rate and pollutant concentration, ensuring stable operation. Equipped with air diffusers to prevent sedimentation and reduce odor.

4.3 Coagulation – Flocculation

Chemical dosing:

• PAC for coagulation

• Polymer for floc formation

This stage helps remove suspended solids, color, and a portion of COD.

4.4 Primary Settling

Settles flocculated solids. Sludge is transferred to the sludge holding tank.

4.5 Aerobic Biological Treatment (Aerotank, MBBR, or MBR)

This is the core treatment stage, where aerobic microorganisms break down dissolved organic matter.

Advantages of MBBR/MBR:

• Higher biomass density

• Smaller footprint

• Better effluent quality

• More stable against shock loads

4.6 Secondary Settling

Separates biomass from treated water.
Returning activated sludge maintains MLSS concentration in the aeration tank; excess sludge is removed.

4.7 Disinfection

Using Chlorine or UV, all remaining pathogens are destroyed, ensuring safe effluent discharge.

4.8 Sludge Treatment

Sludge is dewatered using a belt press or filter press, then transported and treated according to environmental regulations.

 

5. Advanced Technologies Applied by VIET WATER

Depending on the client’s requirements and wastewater characteristics, VIET WATER recommends:

• MBBR: High-load biological treatment with moving biofilm carriers

• MBR: Membrane filtration for high effluent quality

• AAO (Anaerobic – Anoxic – Oxic): Excellent nutrient removal (N, P)

• Fenton / Ozone: Color removal and oxidation of recalcitrant compounds

These technologies ensure efficient, stable, and environmentally safe wastewater treatment.

 

6. VIET WATER’s Working Process

Step 1 – On-site Survey & Sampling

Assessment of wastewater sources, flow, and physical conditions.

Step 2 – Engineering Design & Technology Proposal

Based on laboratory analysis, VIET WATER proposes the most suitable and cost-effective treatment technology.

Step 3 – Manufacturing & Installation

Includes:

• Detailed engineering drawings

• Equipment fabrication

• Civil construction

• System installation

• Commissioning & optimization

Step 4 – Handover & Training

System is handed over with:

• Standard operation procedure (SOP)

• Staff training sessions

• Compliance certification

Step 5 – After-sales Service & Maintenance

Periodic maintenance ensures long-term stability.
24/7 technical support available for all clients.

7. Why Choose VIET WATER

• Fast project delivery & cost optimization

• High-quality, stable, and compliant systems

• Experienced environmental & automation engineers

• Full-package services: Documentation – Design – Construction – Operation – Monitoring

• Trusted by hundreds of factories nationwide

8. Contact VIET WATER

VIET WATER JOINT STOCK COMPANY
Website: www.vietwaterjsc.com
Technical Hotline: 0904.506.065
Email: info@vietwaterjsc.com

VIET WATER – Your trusted partner in industrial environmental solutions.