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A device and method for enhancing biological phosphorus removal based on the synergistic effect of bipolyphosphorous bacteria

A technology for biological phosphorus removal and phosphorus-accumulating bacteria, applied in chemical instruments and methods, water pollutants, water/sludge/sewage treatment, etc., can solve the problems of insufficient research on the synergy between Tetrasphaera and Candidatus Accumulibacter, and achieve enhanced biological removal Phosphorus, reduced operating costs, and reduced dependence

Active Publication Date: 2022-04-22
BEIJING UNIV OF TECH
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  • Claims
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Problems solved by technology

Most of the existing studies on Tetrasphaera have explored its utilization of substrates, and there is insufficient research on the synergy between Tetrasphaera and Candidatus Accumulibacter

Method used

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  • A device and method for enhancing biological phosphorus removal based on the synergistic effect of bipolyphosphorous bacteria

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Embodiment Construction

[0017] The patent application is further described in conjunction with accompanying drawings and examples: as figure 1 As shown, the present invention comprises that the waste water tank (1) is connected with the biological phosphorus removal reactor (5) through the water inlet peristaltic pump (2), and the sludge storage tank (3) reacts with the biological phosphorus removal through the sludge peristaltic pump (4) simultaneously The biological phosphorus removal reactor is equipped with an agitator (6) and a water outlet (10), the air pump (7) passes through the rotameter (8) and the aeration plate (9) installed at the bottom of the biological phosphorus removal reactor connect.

[0018] The test water used in the specific example contains a phosphate concentration of 5mg / L, no external carbon source is added to the synthetic wastewater, and the effective volume of the biological phosphorus removal reactor is 8L.

[0019] The specific implementation process is as follows:

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Abstract

The invention relates to a device and method for strengthening biological phosphorus removal based on the synergistic effect of bipolyphosphorous bacteria, belonging to the technical field of sewage biological treatment. The device includes a water inlet tank, a biological phosphorus removal reactor, a peristaltic pump, a mud storage tank, and an air pump. The method is to use the remaining sludge as a substrate, and enter the biological phosphorus removal reactor together with the wastewater, and the phosphorus-accumulating bacteria Tetrasphaera, which has fermentation capacity in the anaerobic stage, uses the remaining sludge as a substrate to produce volatile fatty acids VFA to supply traditional phosphorus accumulation The bacteria Candidatus Accumulibacter can store the internal carbon source and release phosphate; in the aerobic stage, the phosphorus accumulating bacteria Tetrasphaera and Candidatus Accumulibacter can jointly absorb excess phosphate in the sewage to achieve synergistic phosphorus removal. Utilizing the synergistic effect of bipolyphosphorous bacteria can reduce the dependence on VFA in the influent, and at the same time, the two can absorb phosphorus together in the aerobic section, which can effectively strengthen biological phosphorus removal, and provide a brand-new treatment for carbon-deficient sewage in many areas. Process solutions.

Description

technical field [0001] The invention relates to a device and method for strengthening biological phosphorus removal based on the synergistic effect of bipolyphosphorous bacteria, belonging to the technical field of sewage biological treatment. Background technique [0002] Eutrophication of water bodies has become a global water environment problem. A large number of studies have shown that excessive discharge of phosphorus-rich sewage is the main cause of eutrophication in surface water bodies. Biological phosphorus removal process is an economical and effective phosphorus removal technology, which has been widely used in sewage treatment plants all over the world. Candidatus Accumulibacter, as a typical phosphorus accumulating bacteria, is considered to be the most common phosphorus accumulating bacteria in sewage treatment plants, which can use oxygen, nitrite and nitrate as electron acceptors for phosphorus removal. [0003] With the discovery and isolation of a phospho...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F3/30C02F101/10
CPCC02F3/30C02F2101/105
Inventor 曾薇樊志伟孟庆安彭永臻
Owner BEIJING UNIV OF TECH
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