Gas-lifting type self-circulating anaerobic bioreactor
An anaerobic biological and reactor technology, applied in the direction of anaerobic digestion treatment, etc., can solve the problems of difficult to further improve the treatment efficiency and effluent quality, contain more fine-grained sludge, and short hydraulic retention time, so as to reduce sludge loss. , high-quality effluent, improve the effect of shock load resistance and acid-base balance ability
Inactive Publication Date: 2009-01-07
ZHEJIANG UNIV
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Problems solved by technology
For example, the EGSB reactor needs effluent backflow, which not only increases power consumption, but also makes the reactor fully mixed, making it difficult to further improve the treatment efficiency and effluent quality
Before the internal circulation of the IC reactor is realized, short flow is prone to occur, and operation control is relatively difficult; in addition, the hydraulic retention time is relatively short and the height-diameter ratio is large, and the effluent contains fine particle sludge (precursor to form large particle sludge) More, making the subsequent sedimentation unit a necessary equipment
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[0010] As shown in the drawings, the air-lift self-circulating anaerobic bioreactor has a reactor body, which is divided into a reaction chamber 2, a gas collection chamber 8, and a gas-liquid separation chamber 12 from bottom to top. A sludge sedimentation chamber 9 is provided. There is a mud discharge pipe 3 at the bottom of the reaction chamber 2, the bottom of the reaction chamber 2 is a conical structure, and the apex angle α is 50°-70°, and a water inlet pipe 1 is arranged at the bottom of the reaction chamber 2, and the water inlet pipe 1 penetrates into the reaction chamber from the bottom In the center, with the outlet facing upwards, two cross-shaped surge eliminators 4 are equidistantly arranged in the middle of the reaction chamber 2 . A sludge reflow joint 10 is provided between the lower edge of the gas collection chamber 8 and the expander pipe of the reactor body. 8 The upper end of the reducer is provided with an inclined partition 15, and the inclined parti...
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Abstract
The invention discloses an air lift self-circulation anaerobic biological reactor, which comprises the following steps: possessing reactor body; sharing to reactive room, gas-collecting room and gas liquid separating room; setting sludge deposit chamber out of the gas-collecting room; setting two equidistance cross gas surge canceller in the middle of the reacting room; setting sludge reflux seam between bottom of the gas-collecting room and reactor body increaser; setting sloping cadmium plate on the upper end of the gas-collecting increaser; sharing reactor to gas liquid separating room, gas-collecting room and sludge deposit chamber with sloping cadmium plate; setting reflux pipe at the bottom of the gas liquid separating room; connecting reflux pipe lower and lower of reacting room. This invention makes mixed liquid generate self-circulation through peripheral reflux pipe, which increase the capacity of anti-impact load and acid-base balance. And release short flow caused by gas surge through setting two cross gas surge eliminator.
Description
technical field [0001] The invention relates to an air-lift self-circulation anaerobic bioreactor. Background technique [0002] Anaerobic biological treatment technology is the process of converting organic pollutants into biogas by using the metabolism of microorganisms under anaerobic conditions, so as to purify sewage. Compared with aerobic biological treatment, anaerobic biological treatment has the characteristics of less energy consumption, low sludge output, and the ability to recover biogas. It is one of the effective means to realize circular economy and has broad application prospects. [0003] The research and development of anaerobic bioreactor has a history of more than 100 years, and now it has developed to the third generation. An efficient anaerobic biological treatment system generally needs to meet two conditions: 1) be able to retain a large amount of anaerobic activated sludge; 2) be able to ensure sufficient contact with mud and water. The second-gene...
Claims
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IPC IPC(8): C02F3/28
Inventor 郑平屠展
Owner ZHEJIANG UNIV