Production device and method for achieving stable denitrification of nitrite in continuous flow

A technology for nitrifying nitrite and nitrate nitrogen, which is applied in the field of sewage biological treatment, can solve the problems of long-term stable operation, loss, sludge floating, etc. cheap effect

Inactive Publication Date: 2015-05-20
BEIJING UNIV OF TECH +1
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

Although the traditional upflow sludge bed reactor can achieve a high nitrate nitrogen volume load, it has the problem of sludge floating and loss during operation, and cannot operate stably for a long time

Method used

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  • Production device and method for achieving stable denitrification of nitrite in continuous flow

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Embodiment Construction

[0020] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0021] Such as figure 1 In the structural diagram shown, 1 is the water inlet tank, 2 is the organic carbon source storage tank, 3 is the short-range denitrification reactor, 1.1 is the first peristaltic pump, 1.2 is the first water inlet, 2.1 is the second peristaltic pump, 2.2 is the The second water inlet, 3.1 is the mud discharge port, 3.2 is the water distribution tray, 3.3 is the middle baffle, 3.4 is the light suspended filler, 3.5 is the sampling port, 3.6 is the baffle, 3.7 is the three-phase separator, 3.8 is the outlet Water port, 3.9 is the first backflow port, 3.10 is the third peristaltic pump, and 3.11 is the second backflow port.

[0022] A device for realizing stable denitrification and nitrite production in a continuous flow biofilm reactor, including a water inlet tank, an organic carbon source storage tank and a s...

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Abstract

The invention discloses a production device and a production method for achieving stable denitrification of nitrite in continuous flow, and belongs to the technical field of biological sewage treatment. The method comprises the following steps: with lightweight suspended filler as a carrier, attaching short-range denitrifying sludge on the surface of the filler; and with an organic carbon source in inflow water as an electron donor, continuously reducing nitrate in inflow water into nitrite. According to the production device and method, the electron donor can be lastingly provided for an anaerobic ammonia oxidation technology; the problems of sludge flotation and loss in an upflow denitrification reactor are effectively solved; in addition, the reactor disclosed by the invention is simple in structure, small in floor area, low in cost and beneficial to popularization.

Description

technical field [0001] The invention relates to a device and a method for realizing stable denitrification process nitrite generation in a continuous flow, and belongs to the technical field of sewage biological treatment. The method uses light suspended packing as a carrier, hangs short-range denitrification sludge on the surface of the packing, uses the organic carbon source in the influent as the electron donor, and continuously reduces the nitrate in the influent to nitrite, so that it can continuously serve Subsequent anammox provides electron acceptors. The method can effectively solve the problems of sludge floating and loss in the continuous flow reactor. Background technique [0002] Eutrophication caused by excessive nitrogen and phosphorus concentrations in water bodies is becoming more and more serious, seriously affecting the ecological environment of water areas and human health. Phosphate in water can be effectively removed by chemical methods, and biologica...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F3/28C02F101/16
Inventor 张杰彭轶黄东辉操沈彬杜睿李冬
Owner BEIJING UNIV OF TECH
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