A method for in-situ maintenance and purification of river and lake silt

A lake bottom sludge and silt technology, applied in chemical instruments and methods, sludge treatment, biological sludge treatment, etc., can solve the problems of low labor cost, high engineering investment and high energy price, achieve convenient equipment installation and avoid sludge diffusion , reducing the effect of sludge transportation

Active Publication Date: 2021-06-01
华欧生态环保研究(广州)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Looking at the treatment methods of foreign dredged mud, the main problem is that the cost is high and the project investment is high, which is not suitable for the basic national conditions of high energy prices, expensive machinery and equipment, and low labor costs in my country.

Method used

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  • A method for in-situ maintenance and purification of river and lake silt

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042]Such asfigure 1As shown, a river lake is used in a river or the purification treatment of river or lake sludge, and the river or lake is lifted to the hull or the hull in the river or lake through the method of lift. The sludge is aerated, and the pollution substances in sludge in the mud are subjected to microbial degradation of the river or lake in the river or the bottom of the silt purification chamber, and will be discharged from the bottom of the river or the bottom of the river or lake. .

[0043]The specific steps of the river lake sludge repair purification method are:

[0044]A: Silt boost: By setting the sludge in the hull 1 and extends to the river or lake bottom sludge, the sludge is lifted to the hull 1; the sludge is aerated, the pollutant in the oxidation of silt in the lifting process Make the volatile substance in the silt, with the airflow out, after the aeration, the mud enters the silt purification chamber 8;

[0045]B: Silt purification: Silled inoculation of micr...

Embodiment 2

[0050]In this example, improvements are performed on the basis of Example 1, and the improvement is also provided between the gas lifting device and the silt purification chamber 8, which is separated by a silt filtration device. Block solid contaminants.

[0051]The silt filter device is preferably a filter screen 13, which is disposed above the sludge purification chamber 8, and the filter screen 13 is in contact with the slope flow tube 5, and the other end is provided with a recovery chamber 12, the filtering The screen 13 is tilted downward to the recovery chamber 12, so that the sieved solid contaminants are inclined into the recovery chamber 12, and subsequent treatment is subsequently treated, avoiding it back to the river or lake, pollute the river or lake.

[0052]The specific steps of the river lake sludge repair purification method are:

[0053]A: Silled Lifting: By setting the sludge to the hull 1 by providing a lift lift in the hull or the river or lake bottom sludge, the lifti...

Embodiment 3

[0061]The present embodiment is improved on the basis of Example 2, and its improvement is further, and the gas-lifting device is provided with an air water separator between the silt filtering apparatus, and the mud passes through a gas water separator. Separate the gas, silt the muddy liquid; separated silt turbid fluid enters the silt purification chamber 8 through the silt filtering equipment.

[0062]Preferably, the gas water separator is attached to a gas purifying apparatus 19, and the gas separated by the gas water separator passes through the gas purification apparatus 19, and the gas purification is completed and then drained into the air.

[0063]The specific steps of the river lake sludge repair purification method are:

[0064]A: Silled Lifting: By setting the sludge to the hull 1 by providing a lift lift in the hull or the river or lake bottom sludge, the lifting fluid is promoted, and the silt is aerated during the promotion process, oxidized mud Pollution substances;

[0065]B1:...

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Abstract

The invention discloses a method for in-situ maintenance and purification of river and lake silt. The river or lake bottom silt is lifted to the ship hull on the river or lake surface by means of air lifting, and the silt is aerated during the lifting process to oxidize the silt. pollutants, and through the sludge purification chamber set on the hull, the river or lake bottom sludge is microbially degraded and purified, and the degraded and purified river or lake bottom sludge is discharged to the river or lake bottom. The present invention lifts the river bottom silt to the ship hull by means of gas lift, performs microbial purification treatment on the silt, and then flows back to the bottom of the river and lake in situ; Sensitive, can avoid over-excavation caused by deep excavation, floating mud floating, and avoid mud spreading.

Description

Technical field[0001]The present invention relates to the field of water purification technology of river lake, and specific relates to a river lake sludge repair purification method.Background technique[0002]With the extensive development of water environmental governance project, the dredging project of the river lake has produced a large amount of dredging mud. The existing dredged mutant treatment method is behind, and the consumption resource is used for a long time, affecting the environment. At present, most of the dredging sludge is abandoned in the land-filled area or a low-lying area. Some of the original fish ponds or cultivatics, the formed land is difficult to develop due to extreme strength, and the high water content is poor. It takes a few years or even longer to complete the consolidation under self-respective effects, occupying long-distance land, and the land resilience is severely restriction, waste precious land resources.[0003]At the same time, due to the conta...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F11/00C02F11/02C02F11/121
CPCC02F11/00C02F11/02C02F11/121C02F2103/007
Inventor 朱明石李秋然
Owner 华欧生态环保研究(广州)有限公司
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