Denitrification biofilter reactor utilizing corncob as bio-carrier and method for treating sewage by denitrification biofilter reactor

A denitrification filter and reactor technology, applied in chemical instruments and methods, biological water/sewage treatment, anaerobic digestion treatment, etc., can solve the problem of expensive carbon sources, effluent TN that cannot meet the national first-class A standard, and treatment High cost and other problems, to achieve the effect of reducing costs, ensuring long-term stable operation, and increasing removal rate

Inactive Publication Date: 2018-12-25
江苏哈宜环保研究院有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The purpose of the present invention is to solve the problem that using the existing sewage treatment process to treat sewage, the effluent TN cannot reach the national first-class A standard, and a large amount of expensive carbon source needs to be added, and the problem of high treatment cost is provided. Denitrification filter reactor as biomass carrier and method for treating sewage by using it

Method used

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  • Denitrification biofilter reactor utilizing corncob as bio-carrier and method for treating sewage by denitrification biofilter reactor

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specific Embodiment approach 1

[0021] Specific implementation mode one: combine figure 1 Describe this embodiment, a denitrification filter reactor using corncob as a biomass carrier in this embodiment includes a reactor main body, an inlet water tank 1, an inlet pipe 4, a plurality of outlet pipes 5 and a backwash inlet pipe 8;

[0022] The reactor main body includes a biomass carrier 6 and a supporting plate 7, and the biomass carrier 6 and the supporting plate 7 are arranged inside the reactor main body from top to bottom;

[0023] Below the supporting plate 7, a water inlet and a backwash water inlet are opened on the side wall of the reactor main body; above the supporting plate 7, a plurality of water outlets are opened from top to bottom on the side wall of the reactor main body; The water pipe 5 communicates with the reactor main body through the water outlet;

[0024] The water inlet tank 1 communicates with the reactor main body through the water inlet pipe 4 and the water inlet; the backwash wat...

specific Embodiment approach 2

[0033] Embodiment 2: The difference between this embodiment and Embodiment 1 is that the main body of the reactor is closed. Other steps are the same as in the first embodiment.

specific Embodiment approach 3

[0034] Embodiment 3: The difference between this embodiment and Embodiment 1 or 2 is that: the support plate 7 is evenly provided with a plurality of holes with a diameter of 0.6 mm to 0.8 mm, and the perforations of the support plate 7 The rate is 10% to 15%. Other steps are the same as those in Embodiment 1 or 2.

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Abstract

The invention relates to denitrification biofilter reactor and a method for treating sewage utilizing the same, and particularly discloses a denitrification biofilter reactor utilizing corncob as a bio-carrier and a method for treating sewage by the denitrification biofilter reactor, aiming to solve the problem that the effluent TN is lower than the national primary A standard, expensive carbon sources in a great quantity are needed additionally and treatment cost is high in conventional sewage treatment process. The denitrification biofilter reactor utilizing corncob as a bio-carrier comprises a reactor body, a water feeding tank, a water feeding pipe, a plurality of water discharging pipes and a backwashing inlet pipe. The method for treating sewage is that sewage is fed into the reactorbody, remains in the reactor body for 60-70 minutes, and is discharged from the water discharging pipes, thus, sewage treatment is completed. The denitrification biofilter reactor and the method areapplicable to treatment of sewage.

Description

technical field [0001] The invention relates to a denitrification filter tank reactor and a method for treating sewage by using the same. Background technique [0002] The 2016 "China Environmental Status Bulletin" pointed out that China's surface water pollution is relatively serious, the seven major water systems are generally slightly polluted, and problems such as lake eutrophication are prominent. The accumulation of various forms of nitrogen such as nitrate nitrogen produced by a large amount of chemical fertilizers and ammonia nitrogen in concentrated urban domestic sewage has intensified the degree of eutrophication of lake water, affecting and restricting social and economic development. In the new and existing sewage treatment plants in China, the first-level A standard TN<15mg / L of the "Comprehensive Discharge Standards for Urban Wastewater Treatment Plants" is implemented, while the conventional sewage treatment process is often insufficient due to the lack of...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F3/28C02F101/16
CPCC02F3/2806C02F3/2826C02F2101/16
Inventor 李昂马放郭海娟
Owner 江苏哈宜环保研究院有限公司
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