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Sewage treatment device capable of recovering methane and ammonia simultaneously

A sewage treatment device and ammonia recovery technology, applied in water/sewage multi-stage treatment, biological water/sewage treatment, water/sludge/sewage treatment, etc., can solve the problems of low treatment efficiency, high energy consumption, complex structure, etc. , to achieve the effect of strong adaptability, avoiding blocking and low cost

Pending Publication Date: 2016-12-07
HANGZHOU NORMAL UNIVERSITY
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Problems solved by technology

[0007] In order to overcome the problems of complex structure, low treatment efficiency and large energy consumption in the existing process, the present invention provides a kind of simple structure, low energy consumption, high nitrogen recovery rate, and can recover a large amount of nitrogen at the source of sewage and realize biogas at the same time Sewage treatment plant with ammonia recovery

Method used

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  • Sewage treatment device capable of recovering methane and ammonia simultaneously

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Embodiment 1

[0020] Embodiment 1 A sewage treatment device that simultaneously realizes the recovery of biogas and ammonia according to the present invention includes a reactor body, and the inner chamber of the reactor body is divided into sequentially connected up-flow exhaust chambers through vertical baffles. The oxygen sludge bed unit 1 and the baffle ion exchange unit 2, the upflow anaerobic sludge bed unit 1 communicates with the front compartment of the baffle ion exchange unit 2 through the water outlet, the The upflow anaerobic sludge bed unit 1 is, from bottom to top, a reaction zone 11 for filling anaerobic granular sludge, a three-phase separation zone equipped with a three-phase separator 12, a settling zone 13 and a set with an air outlet 141 Air chamber 14, the bottom of the reaction zone 11 is provided with a water inlet 111 and a mud discharge port 112; the gas collection chamber 14 is surrounded by the periphery of the three-phase separation zone, and the three-phase sepa...

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Abstract

A sewage treatment device capable of recovering methane and ammonia simultaneously comprises an up-flow type anaerobic sludge bed unit and a baffle plate ion exchange unit, wherein the up-flow type anaerobic sludge bed unit and the baffle plate ion exchange unit are connected sequentially; the up-flow type anaerobic sludge bed unit comprises a reaction zone, a three-phase separator, a settling zone and a gas collecting chamber from bottom to top; a water inlet pipe is arranged at the bottom of the left side of the reaction zone, and a sludge discharge port is formed in the bottom of the middle; a gas outlet is formed in the gas collecting chamber; the baffle plate ion exchange unit is divided into multiple separate compartments arranged horizontally by multiple vertical baffle plates; the structure that a falling zone in the front and a rising zone at the back are connected in series alternately is formed in each separate compartment by the aid of the baffle plate; the rising zones of the baffle plate ion exchange unit are filled with zeolite ion exchangers. The device is compact in structure, anaerobic methane production and subsequent zeolite ion exchanging are combined, and energy and nitrogen elements are recovered while sewage is treated.

Description

technical field [0001] The invention relates to a sewage treatment device which simultaneously realizes biogas and ammonia recovery. Background technique [0002] Anaerobic biological treatment technology can effectively treat domestic sewage, convert the organic matter in it into methane gas, and realize the effective recovery of biogas biomass energy. However, the anaerobic treatment of domestic sewage can convert the organic nitrogen in the sewage into ammonia nitrogen, resulting in a high concentration of ammonia nitrogen in the effluent, and the subsequent denitrification treatment is urgently needed. The existing denitrification technology basically converts ammonia nitrogen into nitrogen gas. Although the discharge can meet the emission standards, it also leads to the waste of nitrogen nutrients. [0003] If the ion exchange technology can be combined with anaerobic biological treatment, the nitrogen in the sewage will be converted into ammonia ions through anaerobic...

Claims

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Application Information

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IPC IPC(8): C02F9/14
CPCC02F1/42C02F3/2846Y02E50/30
Inventor 金仁村史志坚陈倩倩徐佳佳许轶群夏巍
Owner HANGZHOU NORMAL UNIVERSITY
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