Purification method of controlling foreign pollution source and ecologically restoring black-odor riverway

A technology for ecological restoration and pollution sources, applied in chemical instruments and methods, water resources protection, energy and wastewater treatment, etc., can solve problems such as easy pollution, black and odorous water bodies, and ecological system crisis, and achieve investment and operation cost reduction, shock resistance Good load, the effect of controlling black and smelly rivers

Active Publication Date: 2014-01-22
JIANGSU JIANGDA ECOLOGICAL SCI & TECHCO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Landscape water bodies such as lakes and rivers in the city are an important part of the urban human settlement environment, but due to their characteristics of easy pollution, small water environment capacity, and poor self-purification ability of water bodies, they can easily become the recipients of domestic sewage, rainwater and garbage for residents. body, resulting in a large consumption of dissolved oxygen in the water body, resulting in a lack of oxygen in

Method used

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  • Purification method of controlling foreign pollution source and ecologically restoring black-odor riverway
  • Purification method of controlling foreign pollution source and ecologically restoring black-odor riverway

Examples

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Effect test

Embodiment 1

[0034] The present invention selects a certain black and smelly river course in Jiangsu that needs to be controlled. The length of the river course is about 1000 meters, the width is about 25 meters, and the water depth is about 2 meters. There are sewage outlets for domestic sewage and industrial sewage around the river, and the sewage is discharged into the river irregularly. The sewage is collected in the anoxic / aerobic biological contact oxidation device.

[0035] like figure 1 As shown, the sewage enters the volcanic rock mineral or zeolite filler respectively from top to bottom, and the particle size is 30-35mm for the first filler 2, 20-25mm for the second filler 3, and 10-15mm for the third filler 4. The fillers are different according to the particle size of the filler. Divided into three layers, the sewage enters the aerobic aeration tank 5 after anoxic biochemical treatment, the water after biochemical treatment enters the sedimentation tank 6 through overflow, and...

Embodiment 2

[0052] like figure 1 As shown, the sewage enters the volcanic rock mineral or zeolite filler respectively from top to bottom, and the particle size is 40-50mm for the first filler 2, 30-20mm for the second filler 3, and 20-10mm for the third filler 4. The fillers are different according to the particle size of the filler. Divided into three layers, the sewage enters the aerobic aeration tank 5 after anoxic biochemical treatment, the water after biochemical treatment enters the sedimentation tank 6 through overflow, and then discharges water into the river.

[0053] like figure 2 Simplified diagram of water ecological restoration system. Drain all the river water, completely remove the silt at the bottom of the river, and replace the soil suitable for planting or improve the soil for the soil with harmful components that are not suitable for plant growth, as well as strong acidic soil, strong alkaline soil, sandy soil, etc. measure. The disinfectant should be sprayed evenly...

Embodiment 3

[0067] like figure 1 As shown, the sewage enters the volcanic rock mineral or zeolite filler respectively from top to bottom, and the particle size is 60-80mm for the first filler 2, 40-60mm for the second filler 3, and 30-10mm for the third filler 4. The fillers are different according to the particle size of the filler. Divided into three layers, the sewage enters the aerobic aeration tank 5 after anoxic biochemical treatment, the water after biochemical treatment enters the sedimentation tank 6 through overflow, and then discharges water into the river.

[0068] like figure 2 Simplified diagram of water ecological restoration system. Drain all the river water, completely remove the silt at the bottom of the river, and replace the soil suitable for planting or improve the soil for the soil with harmful components that are not suitable for plant growth, as well as strong acidic soil, strong alkaline soil, sandy soil, etc. measure. The disinfectant should be sprayed evenly...

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Abstract

The invention relates to a purification method of controlling a foreign pollution source and ecologically restoring a black-odor riverway. The purification method adopts a process combining processes of pretreating sewage outlet wastewater by virtue of a biofilm purification device, planting aquatic plants in the riverway, stocking aquatic animals, installing aeration oxygen increasing equipment and the like. Compared with an existing river ecologic restoration process, the purification method can be used for effectively controlling a sewage outlet of a small size polluted riverway to be adapted to great fluctuation of the riverway water quality and the climate conditions, has strong adaptability to the water quality variation, is good in resistance to shock loading and can be used for effectively removing the phenomenon of black-odor river water as well as has a relatively good effect of removing organic carbon, nitrogen and phosphorus; According to the purification method, the treated effluent quality is stable, the engineering investment is little, the running cost is low, and the purification method is suitable for treating riverway waters with various pollutions.

Description

technical field [0001] The invention relates to a purification method for controlling external pollution sources and ecological restoration of black and odorous rivers, in particular to a river purification process mainly based on ecological restoration methods combined with sewage biochemical treatment methods, and belongs to the technical field of ecological restoration. Background technique [0002] With the development of social production, rivers all over the world are facing different degrees of pollution from industry, agriculture, life and other aspects. Landscape water bodies such as lakes and rivers in cities are an important part of urban human settlements, but due to their characteristics of easy pollution, small water environment capacity, and poor self-purification ability of water bodies, they are easy to become the recipients of domestic sewage, rainwater and garbage for residents. body, resulting in a large consumption of dissolved oxygen in the water body, ...

Claims

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Application Information

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IPC IPC(8): C02F9/14C02F3/30C02F3/32C02F3/34C02F7/00
CPCY02A20/402Y02W10/10Y02W10/37
Inventor 吕志刚许盛凯漆志飞武涛吴湧蒋浩
Owner JIANGSU JIANGDA ECOLOGICAL SCI & TECHCO
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