Method of treating polluted sludge in river in and around city

A silt and river technology, applied in the removal of solid waste, water conservancy projects, water conservancy engineering equipment, etc., can solve the problems of pollution, large investment, long time consumption, etc., and achieve the effect of being beneficial to the urban environment, simple construction engineering, and low investment.

Inactive Publication Date: 2002-04-17
马建农
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, cleaning up the polluted silt on the bottom of the river is a huge project, which not only requires a lot of investment and takes a long time, but also has another problem that is difficult to solve. The cleaned up polluted silt has nowhere to be piled up, and if it is not handled properly, it will cause new pollution.

Method used

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Embodiment Construction

[0011] In Hanoi, where there is polluted silt, steel pipes are used to drive piles, and wooden planks are used to block the water. First, dams are built at both ends of the first section of the river, and the river water in the first section is drained with water pumps. Bury the debris and plants in the U-shaped river into the polluted mud, and then roll the surface to fill it up. From the downstream dam of the river, nylon membranes are used from one side of the river to the other, and horizontally spread on the U-shaped riverbed to roll the gentle polluted silt surface. There is no water under the nylon membranes, and the nylon membranes on both sides of the river are buried on the riverbed with mud; Lay the second nylon film again, the laying method is the same as that of the first nylon film, one side of the second nylon film covers the first nylon film and its adjacent side, and so on, the first section The polluted silt, sundries and plants in Hanoi are all covered at th...

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PUM

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Abstract

In the section of river with polluted sludge, dam is built. After the water is pumped out, pollutant is buried into sludge. The surface of sludge is leveled, and the polluted sludge is covered with isolating medium before water flows through the river again. The present invention treats polluted sludge through in-situ burying, and the method is simple and has no secondary pollution.

Description

technical field [0001] The invention relates to a method for controlling polluted sludge. Background technique [0002] At present, due to the double pollution of domestic sewage and industrial wastewater, the rivers in the city and its surrounding areas are seriously eutrophic, causing a serious reduction in aquatic organisms, and the rivers are black and smelly, which seriously affects the improvement of the urban environment. Therefore, this kind of river The governance of the city has become the most urgent task in the current urban construction. To control a river with severe eutrophication, on the one hand, effective measures must be taken to reduce or even eliminate pollution sources, and on the other hand, it is necessary to clean up the black and smelly polluted silt at the bottom of the river. However, cleaning up the polluted silt at the bottom of the river is a huge project, which not only requires a lot of investment and takes a long time, but also a problem th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B09B5/00E02B1/00
Inventor 马建农
Owner 马建农
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