Baffling in-situ treatment system for black and odorous water body and treatment method

A black and odorous water body, in-situ treatment technology, applied in the field of water treatment, can solve the problems of limited organic matter and nitrogen treatment effect, inability to achieve a complete cure, and high treatment cost, so as to accelerate growth and reproduction, reduce biological loss, and achieve the same The effect of secondary pollution

Inactive Publication Date: 2017-12-19
中交生态环保投资有限公司
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Problems solved by technology

[0004] Although with the development of science and technology, the original technology has been improved in practical application, many problems have not been solved. The ecological floating bed technology can not only bring landscape effects, but also purify the water environment to a certain extent, but it is not suitable for serious pollution. 1. Rivers with a large area of ​​pollution have little effect; some mobile emergency treatment systems can achieve rapid treatment effects on smal...

Method used

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  • Baffling in-situ treatment system for black and odorous water body and treatment method

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0048] Selected test water quality: the water quality of black and odorous water in a river course, COD is 559mg / L; total phosphorus is 1.38mg / L; ammonia nitrogen is 9.3mg / L; dissolved oxygen is 0.11mg / L; transparency is 8cm.

[0049] Small test:

[0050] In the baffle reactor, adjust the hydraulic retention time, volume load, and aeration intensity, and domesticate the aerobic activated sludge by compounding the water body and the test water quality, and gradually increase the proportion of the test water quality until all the influent water is of the test water quality. After the reactor can run stably, fine-tune the operating parameters again according to the actual situation to determine the operating parameters for the best treatment effect. The experimental results show that the temperature is about 22°C at room temperature, the hydraulic retention time is 4 hours, and the SVI is about 72mg / L, aeration volume 320m 3 / h, when the pH is 7.3, after one cycle, the COD of t...

Embodiment 2

[0056] Selected test water quality: the water quality of black and odorous water in a river course, COD is 921mg / L; total phosphorus is 1.91mg / L; ammonia nitrogen is 12.3mg / L; dissolved oxygen is 0.05mg / L; transparency is 4cm. Small test:

[0057] In the baffle reactor, adjust the hydraulic retention time, volume load, and aeration intensity, and domesticate the aerobic activated sludge by compounding the water body and the test water quality, and gradually increase the proportion of the test water quality until all the influent water is of the test water quality. After the reactor can run stably, fine-tune the operating parameters again according to the actual situation to determine the operating parameters for the best treatment effect. The experimental results show that the temperature is about 24°C at room temperature, the hydraulic retention time is 5 hours, and the SVI is about 81mg / L, aeration volume 290m 3 / h, when the pH is 8.0, after one cycle, the COD of the efflu...

Embodiment 3

[0063] Selected test water quality: the water quality of black and odorous water in a river course, COD is 241mg / L; total phosphorus is 1.05mg / L; ammonia nitrogen is 6.3mg / L; dissolved oxygen is 0.99mg / L; transparency is 22cm. Small test:

[0064] In the baffle reactor, adjust the hydraulic retention time, volume load, and aeration intensity, and domesticate the aerobic activated sludge by compounding the water body and the test water quality, and gradually increase the proportion of the test water quality until all the influent water is of the test water quality. After the reactor can run stably, fine-tune the operating parameters again according to the actual situation to determine the operating parameters for the best treatment effect. The experimental results show that the temperature is about 23°C at room temperature, the hydraulic retention time is 3.5 hours, and the SVI is about 73mg / L, aeration volume 280m 3 / h, when the pH is 6.9, after one cycle, the COD of the eff...

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Abstract

The invention provides a baffling in-situ treatment system for a black and odorous water body and a method for treating the black and odorous water body by use of the system. The baffling in-situ treatment system for a black and odorous water body comprises a pretreatment area, an aerobic biological treatment area and a settling area. By transforming a river structure and increasing the water flow baffling, the time of a water body staying in a unit area is increased, and the surrounding land is basically not occupied. In-situ remediation is performed mainly by a biological process, and an aim of improving the water quality of the black and odorous water body is achieved finally. Moreover, residual sludge generated at the tail end can be subjected to baffling or discharge treatment; the sludge backflow is controlled to increase the regional microorganism concentration and improve the treatment efficiency; the sludge discharge is controlled to realize an effect of removing phosphorous of the water body; according to the method, since the in-situ remediation of the black and odorous water body is limited in a smaller area, sufficient time is provided for degrading pollutants in water, and the treatment cost is reduced; moreover, the treatment is quick and efficient, and secondary pollution is avoided.

Description

technical field [0001] The invention belongs to the technical field of water treatment, and in particular relates to a baffle type black and odorous water body in-situ treatment system and treatment method. Background technique [0002] Black odor is an extreme phenomenon of organic pollution in water bodies, which is caused by the lack of oxygen in water bodies and organic corruption. According to analysis, the main reasons for the appearance of black and odorous water bodies are: direct discharge of sewage, overflow pollution of combined pipelines, and ecological damage, resulting in the loss of self-purification ability of the river. Black and odorous water not only affects the urban landscape and ecological environment, but may also enter groundwater resources and affect human health. Therefore, the comprehensive treatment of black and odorous water bodies in our country is urgent. [0003] At present, the treatment methods for black and odorous water bodies mainly inc...

Claims

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Application Information

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IPC IPC(8): C02F9/14C02F101/30
CPCC02F9/00C02F1/001C02F3/10C02F3/12C02F3/1268C02F3/32C02F3/342C02F2001/007C02F2101/30C02F2103/007C02F2201/002C02F2203/006C02F2209/02C02F2209/06C02F2209/44C02F2301/08C02F2301/10C02F2303/02
Inventor 张桐孙笑非王永吉王越博曹大伟薄修齐
Owner 中交生态环保投资有限公司
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