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A new generation of sewage treatment sludge reduction technology
Reduce pollution at the source, reduce high-efficiency sludge by more than 50%, and reduce costs and increase efficiency in water treatment.
Type
Sludge reduction technology
Tags
Environmental & resource tech
Water pollution control
Sewage treatment
Solution maturity
Early adoption / Process verification
Cooperation methods
Overall transfer
Applicable industry
Scientific research and technology services
Applications
Sewage treatment
Key innovations
By loading magnetic particles and high-efficiency dissolved gas, this technology achieves sludge reduction by more than 50% for different treatment processes, significantly reducing sludge production from the source, effectively solving the problem of high water treatment costs, and is highly innovative.
Potential economic benefits
This technology significantly reduces the sludge disposal cost of sewage treatment plants by reducing sludge by more than 50%, bringing huge economic benefits.
Potential climate benefits
This technology significantly reduces sludge production by more than 50%, directly reducing carbon emissions from traditional disposal methods such as sludge incineration and landfill. Reducing the amount of sludge also reduces the need for sludge transportation, thereby saving fuel consumption and indirectly reducing greenhouse gases generated by transportation. This has brought obvious comprehensive carbon reduction benefits.
Solution supplier
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China Academy of Sciences Shanghai Advanced Research Institute
China Academy of Sciences Shanghai Advanced Research Institute
The Shanghai Institute for Advanced Study of China Academy of Sciences is committed to strategic cutting-edge scientific and technological innovation to serve major national needs and sustainable social development.
Solution details

Result background:

Coagulation treatment and activated sludge process are currently widely used water treatment technologies at home and abroad. One of their main problems is that a large amount of sludge will be generated. Huge sludge disposal costs have become a serious problem faced by sewage treatment technology.


Technological innovation:

This project adopts a new generation of sludge reduction technology, which can reduce sludge by more than 50%, reducing sludge production from the source. For coagulation treatment, this project uses loading magnetic particles to achieve the goal of sludge reduction by more than 50%, while achieving high-speed precipitation treatment effect (precipitation rate 20-40m/h). For activated sludge treatment, this project uses high-efficiency dissolved gas technology to destroy microbial cells, causing the cell bodies to rupture and cytoplasm to flow out, so that they can be reused by microorganisms as nutrients, achieving the goal of reducing activated sludge by more than 50%.


Application prospects:

The project has completed pilot trials in Shandong Water Development Group Co., Ltd. and is preparing for a sewage treatment project of 45,000 tons/day.

Last updated
10:58:20, Nov 04, 2025
Information contributed by
Green Technology Bank

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