What are the uses of wastewater treatment equipment
time：2026-01-06
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1. Core purposes of wastewater treatment equipment
1. Remove pollutants and improve water quality
Wastewater treatment equipment effectively removes pollutants such as suspended solids, organic matter, heavy metals, and pathogenic microorganisms from wastewater through processes like sedimentation, filtration, aeration, and disinfection. For instance, the activated sludge process can degrade over 90% of organic pollutants (data source: "Water Pollution Control Engineering"), while membrane filtration technology can enhance the removal rate of suspended solids to 99.5%.
2. Realize water resource reuse
The treated reclaimed water can be used in scenarios such as industrial cooling, farmland irrigation, and urban greening. Taking Beijing as an example, the utilization rate of reclaimed water reached 58% in 2022 (data from the Beijing Municipal Water Affairs Bureau), significantly alleviating the problem of water resource shortage.
3. Protect the ecological environment
Direct discharge of untreated sewage can lead to eutrophication of water bodies and a decline in biodiversity. Sewage treatment equipment can reduce the total phosphorus concentration in effluent to below 0.5 mg/L by controlling nitrogen and phosphorus emissions (such as nitrogen and phosphorus removal processes) (Emission Standards for Pollutants for Municipal Wastewater Treatment Plants GB 18918-2002).
II. Extended Applications and Social Value
1. Special requirements in the industrial sector
Different industries have differentiated requirements for wastewater treatment:
- The electroplating industry needs to focus on the treatment of heavy metals (such as chromium and nickel), and the equipment needs to be equipped with ion exchange or electrolysis processes;
- Food processing wastewater contains high concentrations of organic matter and is often treated using anaerobic reactors (with a COD removal rate exceeding 80%).
2. Public health and disease prevention and control
Wastewater treatment equipment can eliminate pathogens and reduce the risk of water-borne diseases such as cholera and dysentery. The World Health Organization (WHO) points out that a well-established wastewater treatment system can reduce diarrhea cases by 30% (WHO 2021 report).
3. Energy conservation, emission reduction, and carbon neutrality
Modern equipment integrates technologies such as biogas recovery and solar energy drive. For example, the anaerobic digestion process can generate 15-20m³ of biogas per ton of sludge treated (data from the journal Environmental Science & Technology), replacing the use of fossil fuels.
III. Future Development Trends
With technological advancements, wastewater treatment equipment is evolving towards intelligence (such as AI-optimized operational parameters), resource utilization (phosphorus recovery and utilization), and low-carbonization (energy consumption reduction by 20%-30%), further expanding its applications in ecological restoration and circular economy.
