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In-situ water purification system and purification method for heavily polluted river

A technology for water purification and heavy pollution, applied in chemical instruments and methods, multi-stage water/sewage treatment, water/sludge/sewage treatment, etc., can solve the problems of poor nitrogen and phosphorus removal capabilities, high energy consumption, and high basic investment problems, to achieve regeneration, high resource utilization, and good environmental benefits

Active Publication Date: 2016-07-06
CHINA NUCLEAR IND HUAXING CONSTR +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Aiming at the problems of high energy consumption, high basic investment and poor denitrification and phosphorus removal capacity in the existing sewage treatment technology, the present invention provides an in-situ water purification system and purification method for heavily polluted rivers

Method used

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  • In-situ water purification system and purification method for heavily polluted river
  • In-situ water purification system and purification method for heavily polluted river

Examples

Experimental program
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Effect test

Embodiment 1

[0032] Such as figure 1 As shown, an in-situ water purification system for a heavily polluted river was constructed in a polluted tributary river in the Taihu Lake Basin (the length of the river is 6.45km, and the width is 25m), including a phosphorus accumulation treatment unit and an aerobic-anoxic-anaerobic purification unit Lay polyphosphorus filler 4 at the bottom of the shoal waters of the tributaries, and the laying thickness is 15cm, 25cm, 35cm, and the shoal waters (waters with a water depth of less than 0.6m) are sequentially constructed from the shore to the direction of the river. Step step unit 1, second step step unit 2 and third step step unit 3, polyphosphorus filler 4 is biochemical sludge (biochemical sludge with a moisture content of 50% after pressure filtration in a sewage treatment plant) and attapulgite ( The place of origin is Xuyi, Jiangsu) as raw materials, after being pretreated by crushing and screening processes, mixed at a mass ratio of 1:2.5, and...

Embodiment 2

[0035] In this embodiment, a polluted river course (the length of the river course is 8.91km and the width is 30m) in the water area of ​​a branch of the Chaohu water system in Anhui Province is to construct a kind of in-situ water quality purification system for the heavily polluted river course, including the phosphorus accumulation treatment unit and the aerobic-anoxic - Anaerobic purification unit, laying polyphosphorous filler 4 at the bottom of the shoal waters of the polluted river, the thickness of which is 15cm, 35cm, 45cm is gradually increased, and the shoal waters (waters with a water depth of less than 0.6m on the shore) are from the shore to the river In the direction, a stepped first-level step unit 1, a second-level step unit 2 and a third-level step unit 3 are constructed successively, and the polyphosphorus filler 4 is biochemical sludge (biochemical sludge with a moisture content of 70% after pressure filtration in a sewage treatment plant) Sludge) and attapu...

Embodiment 3

[0038]In this embodiment, a polluted river course (4.76km long and 23m wide) is constructed in a polluted river course in the Huaihe River Basin, Anhui Province, in situ water quality purification system, including phosphorus accumulation treatment unit and aerobic-anoxic - Anaerobic purification unit, laying polyphosphorous filler 4 at the bottom of the shoal waters of the polluted river, the thickness of which is 15cm, 35cm, 55cm is gradually increased, and the shoal waters (waters with a water depth of less than 0.6m on the shore) are from the shore to the river In the direction, a stepped first-level step unit 1, a second-level step unit 2 and a third-level step unit 3 are constructed successively, and the polyphosphorus filler 4 is biochemical sludge (biochemical sludge with a water content of 40% after pressure filtration in a sewage treatment plant) Sludge) and attapulgite (produced in Xuyi, Jiangsu) as raw materials, after crushing and pretreatment in the screening proc...

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Abstract

The invention discloses novel in-situ water purification system and a purification method for a heavily polluted river, and belongs to the field of sewage treatment. The in-situ water purification system disclosed by the invention comprises a polyphosphate treatment unit and an aerobiotic-anaerobic-anaerobic purification unit, wherein the polyphosphate treatment unit is arranged in a shallow water area of the river; and the aerobiotic-anaerobic-anaerobic purification unit is arranged in a non-shallow water area of the river, and comprises a bamboo filament packing, aeration pipeline and a cap sealing material. The characteristics of the river are fully utilized; and through the intermittent arrangement of the aeration pipelines in the river, the river is transformed into a plurality of aerobiotic-anaerobic-anaerobic biological reaction zones which are connected with one another in series, so that the nitrification capacity and denitrifying capacity of a water body are improved; and the denitrification effect of the system is greatly improved. The characteristics of various treatment units are fully utilized; various treatment units are effectively combined, so that the denitrification and phosphorous removal treatment effects are strengthened; in-situ repair and purification of the water body are realized; and the novel in-situ water purification system and the purification method are suitable for popularization and application.

Description

technical field [0001] The invention belongs to the field of sewage treatment, and more specifically relates to an in-situ water quality purification system and a purification method of a heavily polluted river course. Background technique [0002] With the continuous development of social economy and the continuous growth of population, the pollution of water sources and water bodies around the world is becoming more and more serious. River pollution is also a concentrated expression of water environmental pollution, which has attracted more and more attention. A large amount of industrial wastewater and domestic sewage without effective treatment are discharged into rivers, lakes, etc., causing water environment pollution and disturbing the natural ecosystem. The structure and balance of the original ecosystem have been broken. of great importance. [0003] At present, researchers at home and abroad have conducted extensive research on river pollution remediation technolo...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F9/14
Inventor 路逸居张后虎赵泽华赵克强
Owner CHINA NUCLEAR IND HUAXING CONSTR
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