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Technique for separating mud and water in river and lake deposit

A mud-water separation and process technology, which is applied in the direction of separation methods, sedimentation separation, water resource protection, etc., can solve the problems of large power consumption and limited processing capacity, and achieve the effect of large processing capacity

Active Publication Date: 2009-03-04
JIANGSU JIANGDA ECOLOGICAL SCI & TECHCO +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Mechanical force includes centrifugal dehydrator, filter press and drying method, etc. The mechanical method consumes a lot of power and has limited processing capacity

Method used

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  • Technique for separating mud and water in river and lake deposit
  • Technique for separating mud and water in river and lake deposit
  • Technique for separating mud and water in river and lake deposit

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] Example 1 Lihe Ecological Restoration Demonstration Project

[0039] This project is a comprehensive government project integrating dredging, silt drying, silt resource utilization, and ecological restoration. Construction started in November 2007. Desilting and sludge drying are the first steps in the whole project. The length of the river channel controlled by this project is 2Km, and the bottom sediment is dredged about 50,000 cubic meters.

[0040] a. Configuration of coagulant: add Fecl to clean water 3 And stir evenly, control Fecl 3 The mass percent concentration is 15%, for subsequent use;

[0041] b. The configuration of the flocculant: add polyacrylamide (Polyscrylamide) into clean water and stir evenly, control the mass percentage concentration of polyacrylamide to be 0.1%, and set aside;

[0042] c. Import of mud water: Use 120 cutter suction dredgers to pump the river bottom mud into the mud water pipeline, and the mud content rate of the mud water is ...

Embodiment 2

[0062] Example 2 Zhangzhuangbang Ecological Restoration Project

[0063] This project is a comprehensive government project integrating dredging, silt drying, silt resource utilization, and ecological restoration. Construction started in June 2008. Desilting and sludge drying are the first steps in the whole project. The length of the river to be treated by the project is 1Km, and 12,000 cubic meters of sediment have been dredged.

[0064] a. Configuration of coagulant: add Fecl to clean water 3 And stir evenly, control Fecl 3 The mass percent concentration is 10%, for subsequent use;

[0065] b. Configuration of flocculant: add polyacrylamide (Polyscrylamide) into clean water and stir evenly, control the mass percentage concentration of polyacrylamide to be 0.2%, set aside;

[0066] c. Import of mud water: first drain the river water, and then use the mud pump hydraulic excavation unit to dilute the mud at the bottom of the river to a mud content of about 20% and pump it...

Embodiment 3

[0086] Example 3 Lihu Lake Basin Ecological Restoration Project

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PUM

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Abstract

The invention discloses a water-mud separation technology for bottom mud in rivers and lakes, which comprises the following steps of coagulant preparation, flocculant preparation, introduction of muddy water, coagulation, flocculation, etc. The method of the invention can quickly separate water from mud, avoid secondary pollution and purify the water.

Description

technical field [0001] The invention discloses a mud-water separation process for river and lake bottom mud, which belongs to the technical field of environmental protection. Background technique [0002] Since the late 1970s, with the rapid expansion of the economic aggregate and the rapid improvement of the urbanization level, coupled with the weak awareness of environmental protection, the discharge of industrial wastewater and domestic sewage into lakes and rivers in my country has greatly increased. Drainage of farmland with extensive use of chemical fertilizers and pesticides has seriously polluted rivers and lakes. In some cities, rivers were filled and blocked, and garbage was discarded. The river water was black and smelly, and the water ecological environment was seriously damaged. With the development of social material civilization and spiritual civilization, people's requirements for the environment are getting higher and higher, so how to control the pollution ...

Claims

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Application Information

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IPC IPC(8): B01D21/01C02F1/52
CPCY02A20/402
Inventor 吕志刚
Owner JIANGSU JIANGDA ECOLOGICAL SCI & TECHCO
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