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my country's sewage sludge production

 Last Update: 2021-06-18
 Source: Internet
 Author: User

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Since the 1990s, the process of urbanization in China has been advancing rapidly, and the total annual discharge of urban sewage has increased year by year, as shown in Figure 9-1
.

The annual output of sludge and the expected output in 2020 are shown in Figure 9-2 (80% moisture content).

Figure 9-1 Total annual sewage discharge and daily treatment capacity

Countries around the world have reached an almost unanimous consensus on the treatment and disposal of surplus sludge, that is, not only to adopt a passive and simple treatment method, but to use sludge first, and excavate the material and energy contained in the sludge as much as possible to make It turns waste into treasure and recycles it
.

Sustainable sludge treatment and disposal strategies are currently the direction of technology research and development generally advocated by various countries
.

The "four modernizations" principle of sludge treatment and disposal in China is to gradually realize the stabilization, reduction and resource utilization of sludge treatment and disposal on the basis of harmlessness

Figure 9-2 Annual output of sludge (80% moisture content)

Related Links: Tianjin Constructed Wetland Wastewater Treatment Project

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