Anaerobic/aerobic dual purpose waste water treatment system

A wastewater treatment system and a dual-purpose technology, applied in the direction of aerobic and anaerobic process treatment, anaerobic digestion treatment, aerobic process treatment, etc., can solve the problems of too small, long start-up period, unable to keep up with production changes, etc., To achieve the effect of improving high elimination rate, large output variation and good effluent water quality

Inactive Publication Date: 2005-11-09
TSINGHUA UNIV
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Problems solved by technology

When used for the treatment of low-concentration organic wastewater, due to the small amount of biogas generated, the internal circulation cannot be formed or the internal circulation is too small, and the reactor cannot operate normally
These two reactors also suffer from the above problems during the start-up period due to the low biogas production, resulting in a longer start-up period
In addition, my country's "three simultaneous" policy in terms of environmental protection requires enterprises to build sewage treatment systems at the same time as building production lines. However, the general environmental protection facilities have a narrow scope of application and cannot keep up with production changes, resulting in inefficient operation of water treatment facilities, high idle rate and elimination rate

Method used

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  • Anaerobic/aerobic dual purpose waste water treatment system
  • Anaerobic/aerobic dual purpose waste water treatment system
  • Anaerobic/aerobic dual purpose waste water treatment system

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Embodiment Construction

[0016] The specific structure, the working process and the best embodiment of the present invention are further described below in conjunction with the accompanying drawings.

[0017] The structure of the aerobic / anaerobic dual-purpose wastewater biological treatment system provided by the present invention is as follows: image 3 As shown, the system mainly includes aerobic / anaerobic dual-purpose internal circulation reactor 23, aeration head 13 arranged at the bottom of the reactor, gas compressor 15, biogas tank 17, nitrogen tank 20 and air tank or oxygen tank 22. The reactor includes a first reaction zone 2, a second reaction zone 6, a riser pipe 4, a downflow zone 7, a precipitation zone 8, a gas-liquid separation zone 5, a water inlet pipe 1 arranged at the bottom of the reactor, and a water outlet pipe 9 at the top , the biogas pipe 10 and the carrier addition port 12 in the upper part of the first reaction zone. The gas-liquid separation zone 5 is built together with ...

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Abstract

A aerobic / anaerobic system for treating sewage has an anaerobic lifting flow reactor with inlet tube and aerating head connected via said inlet tube to gas compressor communicated via valve to the air, O2, or N2 cylinder, and the gas outlet tube of said reactor is connected to marsh gas cabnet communicated with compressor. Its advantages are both running modes, high stability, and high start speed.

Description

technical field [0001] The invention relates to a biological treatment equipment for organic wastewater, in particular to the structural design of an internal circulation anaerobic reactor and an internal circulation anaerobic expanded bed / fluidized bed reactor. Background technique [0002] The treatment of organic wastewater has always been dominated by biological treatment. Biological treatment can be divided into aerobic biological treatment and anaerobic biological treatment, and their respective characteristics and application scope are shown in Table 1. It can be seen from Table 1 that the aerobic biological treatment process has the advantages of good effluent quality and low treatment costs when dealing with low-concentration organic wastewater; the anaerobic treatment process can generate biogas to recover bio-energy, and when dealing with medium- and high-concentration organic wastewater, the low cost. Anaerobic treatment and aerobic treatment each have a variet...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F3/28C02F3/30
CPCY02E50/30
Inventor 吴静陆正禹
Owner TSINGHUA UNIV
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