Nội dung
1. Learn about industrial wastewater treatment: technology and benefits
Industrial wastewater treatment and industrial wastewater treatment technology is a process. To remove pollutants from wastewater before discharging into the environment or reusing. With the rapid development of industries, the demand for technology for wastewater treatment systems requiring high efficiency is increasing.
2. Current Industrial Wastewater Treatment Technologies
2.1. Biotechnology
Biotechnology uses microorganisms to decompose organic matter in wastewater.
- Aerobic treatment: Applied in food, paper, textile and dyeing industries.
- Anaerobic treatment: Suitable for wastewater with high pollution concentration such as seafood processing, beer production
2.2. Chemical and Physical Technology
This method uses chemical reactions and physical processes to remove contaminants.
- Coagulation – flocculation: Helps separate suspended solid particles in water.
- Ion exchange: Treats wastewater containing heavy metals.
- Advanced oxidation: Destroys difficult-to-decompose organic substances by strong oxidation.
2.3. Membrane Filter Technology
Membrane filtration technology helps separate impurities from water through a membrane of ultra-small size.
- RO (Reverse Osmosis) membrane: Removes most pollutants, suitable for wastewater reuse.
- MBR (Membrane Bioreactor) membrane: Combines biology and membrane filtration, effectively treating wastewater with high pollution load.
2.4. Evaporation Technology
Evaporation technology separates water from pollutants using heat.
- MEE (Multi-Effect Evaporation): High efficiency, helps concentrate waste and recover clean water.
- Vacuum evaporation technology: Energy saving, suitable for hazardous wastewater treatment.
3. Benefits of Industrial Wastewater Treatment
3.1. Environmental Protection
- Reduce water pollution, protect ecosystems.
- Prevent risks to human health.
3.2. Compliance with Legal Regulations
- Meet Vietnam’s QCVN environmental standards.
- Avoid being fined for violating discharge regulations.
3.3. Reuse Water and Save Costs
- Treated wastewater can be reused for production.
- Reduce costs of purchasing clean water and wastewater treatment.
4. Application of Wastewater Treatment Technology in Industrial Production
- Textile dyeing industry: Apply MBR and advanced oxidation technology to remove color and chemicals.
- Food processing industry: Anaerobic treatment combined with membrane filtration helps reduce BOD, COD effectively.
- Electronics manufacturing industry: Use ion exchange and RO to remove heavy metals.
In addition, there are other industries such as:
- Rubber industry wastewater
- Seafood processing, slaughterhouses
- Wastewater treatment of pharmaceutical industry
- Sugar industry
- Paper, pulp and ink industry
- Wastewater treatment contaminated with oil: petrochemicals, chemicals, …
- Wastewater treatment of leather industry
