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System and method for treating black and odorous water bottom sludge in rural areas

A black and odorous water body and treatment system technology, applied in water/sludge/sewage treatment, sludge treatment, biological sludge treatment, etc., can solve problems such as air and environmental pollution, virus transmission, soil waste, etc., and achieve improved fermentation Quality and efficiency, solve the shortage of fermentation bacteria, and ensure the effect of smooth progress

Active Publication Date: 2022-04-12
中日友好环境保护中心 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Compared with black and odorous water bodies in cities, the black and odorous water bodies in rural areas have a lower degree of treatment and are not taken seriously, resulting in waste of soil. At present, the treatment of black and odorous water bodies in rural areas is to dig out the sediment and pile them up directly. , lead to air and environmental pollution, and may lead to the spread of viruses, endangering human health

Method used

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  • System and method for treating black and odorous water bottom sludge in rural areas
  • System and method for treating black and odorous water bottom sludge in rural areas
  • System and method for treating black and odorous water bottom sludge in rural areas

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Embodiment

[0030] As shown in Question 1, a sediment treatment system for black and odorous water bodies in rural areas includes: a sediment pretreatment module, a middle sediment treatment module, and a final sediment treatment module in the order of processes;

[0031] The sediment pretreatment module includes: a mud extraction unit for dredging the sediment in the black and odorous water body and a concentration unit for concentrating the dredged sediment and removing water.

[0032] The mud extraction unit includes a sand and gravel garbage separator that can separate sand and gravel garbage and bottom mud in the river. The sand and gravel garbage separator is purchased from a vibrating sand and gravel separator from Weifang Zhongwei Environmental Protection Technology Co., Ltd. The concentration unit includes in sequence from the process: an automatic flocculant dosing machine purchased from Guangzhou Jindian Environmental Protection Engineering Co., Ltd., which can solidify and prec...

Embodiment 2

[0041] Described embodiment 2 differs from embodiment 1 in that:

[0042] Such as figure 2 As shown, the data analysis module is set on the pollution degree monitor, and the pollution degree critical value is set. After the data analysis module analyzes the detected data, it is judged whether to operate the spare feeding box for feeding. The critical value setting As shown in Table 1.

[0043] Table 1: Critical values ​​of sediment pollution components

[0044]

[0045] Where the critical value exceeds 1%, the spare feeding box will add 8% of the fermented bacteria to be put in, and the fermented bacteria used in the spare feeding box will increase the component concentration by 5% compared with the fermented bacteria in the fermented bacteria feeding machine.

[0046] The data analysis module is a 51 single-chip microcomputer. After the single-chip microcomputer processes the data, the solenoid valve on the standby feeding machine is operated through a relay to inject m...

Embodiment 3

[0048] Described embodiment 3 differs from embodiment 1 in that:

[0049] The automatic dosing machine is also provided with a composite conditioner for conditioning and tempering the bottom mud. The composite conditioner includes the following components in terms of mass percentage: 50% of asbestos-free microporous calcium silicate powder, 40% of the gel wrapping agent, and the balance is polyaluminum iron silicate; wherein, the preparation method of the gel wrapping agent is: 12g of nano-active carbon powder and 500ml of water are configured into a suspension, and then sequentially added polyacrylamide 120g, ammonium persulfate 18g, carboxymethyl chitosan 20g, after stirring and aging at room temperature for 0.5h, let it stand for 18h to obtain a gel-like product, and granulate and dry at 40°C to make gel particles. It is the gel wrapping agent, and the particle size of the asbestos-free microporous calcium silicate powder is 1-2000 microns.

[0050] Add above-mentioned com...

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Abstract

The invention discloses a system and method for treating black and odorous water bottom sludge in rural areas. The system mainly includes: a bottom sludge pretreatment module, a bottom sludge middle section treatment module and a bottom sludge final treatment module; the bottom sludge pretreatment module includes: A mud-taking unit and a concentration unit; the mud-taking unit includes a sand and gravel garbage separator, and the concentration unit includes: an automatic dosing machine, a mixer, a mud-water separator and a tail water treatment machine; the middle section of the bottom mud treatment module mainly includes Fermentation unit, the fermentation unit includes: a pollution degree monitor, an aerobic fermentation tank, a fermentation bacteria feeding machine, a stirring aerator; the bottom sludge final treatment module includes: a filter press, a dryer, a pulverizer, a charging machine and filter, this system can reuse the water body sediment as fertilizer, which is more environmentally friendly and has simple processing steps, which is suitable for widespread promotion.

Description

technical field [0001] The invention relates to the technical field of bottom sludge treatment of black and odorous water bodies, in particular to a system and method for treating bottom sludge of black and odorous water bodies in rural areas. Background technique [0002] The so-called black odor is an extreme phenomenon of organic pollution, which is caused by the lack of oxygen in the water body and the corruption of organic matter. The black odor state is an extreme state of the water body, and its own characteristics are also very different from other states. Its physical and chemical environment is characterized by strong reduction, extremely serious organic and inorganic pollution, and the water body has peculiar smell, which is no longer suitable for the survival of aquatic organisms. The aquatic vegetation is degraded or even extinct. The food chain is broken, the food web is fragmented, the ecosystem structure is seriously unbalanced, and its functions are seriousl...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F11/00C02F11/148C02F11/121C02F11/02
CPCC02F11/00C02F11/148C02F11/121C02F11/02C02F2103/007
Inventor 马广玉魏东洋卿野张雅京叶晔钱玲韩巍李睿于洋李冬赵晓毅赵智会
Owner 中日友好环境保护中心
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