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Method for treatment of sediment in black-odor water body

A black and odorous water body and treatment method technology, applied in the direction of water/sludge/sewage treatment, oxidation treatment of sludge, chemical instruments and methods, etc., can solve the problem of sludge treatment not being scientifically and reasonably solved, secondary pollution of the environment, etc. problems, achieve good dehydration effect, reduce moisture content, and have a wide range of applications

Pending Publication Date: 2019-07-26
POWERCHINA HUADONG ENG COPORATION LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Sludge treatment has not been scientifically and reasonably solved, and it is very easy to cause secondary pollution to the environment

Method used

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  • Method for treatment of sediment in black-odor water body
  • Method for treatment of sediment in black-odor water body

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] A method for treating black and odorous water bottom sludge provided by an embodiment of the present invention, said method comprising the following steps:

[0024] Step 1: Spread the bottom mud of the black and odorous water body and let it stand still, drain the overlying water, remove impurities and mix evenly.

[0025] Specifically, mechanical equipment is used to dig out the black and odorous water body sediment from the bottom mud of the river channel, spread it flat in the sludge disposal site, and after standing for a period of time, use the drainage tank of the disposal site to drain the overlying water, and manually remove the garbage, After removing stones, leaves and other impurities, mix well.

[0026] Step 2, adding persulfate and hydrogen peroxide solution to the homogeneously mixed bottom mud and tumbling and mixing. The persulfate is any one or combination of sodium persulfate, potassium persulfate and ammonium persulfate. The dosage concentration rat...

Embodiment 2

[0031] A method for treating black and odorous water bottom sludge provided by an embodiment of the present invention, said method comprising the following steps:

[0032] Step 1: Spread the bottom mud of the black and odorous water body and let it stand still, drain the overlying water, remove impurities and mix evenly.

[0033] Specifically, mechanical equipment is used to dig out the black and odorous water body sediment from the bottom mud of the river channel, spread it flat in the sludge disposal site, and after standing for a period of time, use the drainage tank of the disposal site to drain the overlying water, and manually remove the garbage, After removing stones, leaves and other impurities, mix well.

[0034] Step 2, adding persulfate and hydrogen peroxide solution to the homogeneously mixed bottom mud and tumbling and mixing. The persulfate is any one or combination of sodium persulfate, potassium persulfate and ammonium persulfate. The dosage concentration rat...

Embodiment 3

[0039] A method for treating black and odorous water bottom sludge provided by an embodiment of the present invention, said method comprising the following steps:

[0040] Step 1: Spread the bottom mud of the black and odorous water body and let it stand still, drain the overlying water, remove impurities and mix evenly.

[0041] Specifically, mechanical equipment is used to dig out the black and odorous water body sediment from the bottom mud of the river channel, spread it flat in the sludge disposal site, and after standing for a period of time, use the drainage tank of the disposal site to drain the overlying water, and manually remove the garbage, After removing stones, leaves and other impurities, mix well.

[0042] Step 2, adding persulfate and hydrogen peroxide solution to the homogeneously mixed bottom mud and tumbling and mixing. The persulfate is any one or combination of sodium persulfate, potassium persulfate and ammonium persulfate. The dosage concentration rat...

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Abstract

The invention provides a method for treatment of sediment in the black-odor water body. The moisture content of the sediment can be reduced remarkably by improving types and proportion of key reagentsadded to the sediment, and the total nitrogen (TN) and total phosphorus (TP) in the sediment can be effectively removed. The method includes the steps of 1), laying flat the sediment in the black-odor water body, discharging overlaying water and removing impurities prior to mixing evenly; 2), adding persulfate and a hydrogen peroxide solution to the evenly mixed sediment prior by turning in sunlight and mixing, and effectively treating the sediment in the black-odor water body after reaction under natural conditions.

Description

technical field [0001] The invention belongs to the field of bottom sludge treatment of black and odorous water bodies, and more specifically relates to a treatment method for bottom sludge of black and odorous water bodies. Background technique [0002] With the continuous deepening of my country's economic and social development, the status and role of ecological civilization construction have become increasingly prominent, and the comprehensive management of water environment as an important content of ecological civilization construction is particularly important. In water treatment, the treatment of water pollution sludge is very important. The endogenous pollution of black and odorous water refers to the long-term deposition of sludge rich in organic matter in the water body, and the continuous release of pollutants into the water body due to anaerobic fermentation. For the control of endogenous pollution, the common method is dredging. Many water bodies lack effecti...

Claims

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Application Information

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IPC IPC(8): C02F11/06C02F101/16C02F101/10
CPCC02F11/06C02F2101/105C02F2101/16C02F2103/007
Inventor 许峥王宗平张敏俎海发陈丁力刘麦桑黄璁骆育真林强陈宇
Owner POWERCHINA HUADONG ENG COPORATION LTD
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