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Integrated sewage treatment device

A sewage treatment device and sludge technology, applied in biological water/sewage treatment, degassed water/sewage treatment, water/sewage multi-stage treatment, etc. Simple and convenient maintenance, prevent breeding, and reduce the effect of concentration

Active Publication Date: 2020-03-24
SUZHOU UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Therefore, the existing anaerobic (deficiency) oxygen / aerobic functional partitions (Chinese patents CN200710021101.7, CN201810794077.9) cannot realize the denitrification function of autotrophic organisms

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0056] The specific parameters of the processing device used in this embodiment are set as follows:

[0057] Water to be treated: The leachate from a landfill is treated by a two-stage upflow anaerobic sludge bed (UASB) reactor. To more than 95% of the total nitrogen concentration, the treatment scale is about 800m 3 / d.

[0058] Such as figure 1 As shown, the integrated treatment device is composed of two reactor modules (the first reactor module and the second reactor module), one settling module and one gas-liquid separation module, wherein the first reactor module includes the second reactor module One reactor 11, the second reactor module includes the second reactor 21, the settling module includes the third reactor 31, the first reactor 11, the second reactor 21 and the third reactor 31 are sequentially stacked and connected from bottom to top A cylinder with a section diameter of 6m and a height of about 18m is formed.

[0059] First Reactor Module:

[0060] The cr...

Embodiment 2

[0088] Water to be treated: A municipal sewage is pretreated by a 2-stage anaerobic baffle (ABR) reactor. The concentration of BCOD is 30-60mg / L, the concentration of ammonia nitrogen is 40-70mg / L, and ammonia nitrogen accounts for 95% of the total nitrogen concentration. % above, the processing scale is about 6400m 3 / d.

[0089] The structure of the integrated sewage treatment plant is basically the same as in Example 1, the differences are as follows:

[0090] The first reactor 11, the second reactor 21, and the third reactor 31 are sequentially connected to form a main body with a cross-sectional diameter of 8 m and a height of about 19 m.

[0091] The first reactor 11 and the second reactor 21 have the same size, with a cross-sectional diameter of 8m, a height of 8m, and a hydraulic retention time of about 2.5h (calculated on the basis of 60% influent flow rate).

[0092] There are altogether 18 water distribution pipes (16), arranged in three layers, with a pipe diamet...

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Abstract

The invention relates to an integrated sewage treatment device which comprises a first reactor module, a second reactor module, a settling module and a gas-liquid separation module; the first reactormodule comprises a first reactor, an anoxic reaction zone, an aerobic reaction zone, a first gas collecting and pressurizing layer, a first water inlet pipe and an aeration device; the second reactormodule comprises a second reactor, a second water inlet pipe, an anaerobic reaction zone and a second gas collecting and pressurizing layer; the settling module comprises a third reactor and a water outlet pipe; the gas-liquid separation module comprises a gas-liquid separator, an exhaust pipe, a first riser pipe, a second riser pipe and a backflow pipe. The device provided by the invention can give full play to the advantages of an autotrophic biological denitrification process, meets the biochemical treatment requirements of sewage with a low C / N ratio, and has the advantages of high denitrification efficiency, low treatment energy consumption, avoidance of addition of chemicals, high space utilization rate, simplicity in maintenance and the like.

Description

technical field [0001] The invention belongs to the technical field of environmental protection, and in particular relates to an integrated sewage treatment device. Background technique [0002] At present, how to realize "energy self-sufficiency and material circulation" has become an important development direction in the field of sewage treatment. Among the many solutions, the new A-B process based on COD capture and autotrophic biological denitrification is considered to be a very practical technical route. Among them, section A mainly realizes the enrichment (recovery) or conversion (methanization) of organic matter in sewage through physical and chemical methods or anaerobic biological treatment, while section B uses anaerobic ammonium oxidation as the core to remove organic matter. Nitrogen technology effectively removes nitrogen pollutants in water under the conditions of low C / N ratio, low aeration energy consumption and low sludge production, creating conditions f...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/14C02F3/30C02F3/34
CPCC02F1/20C02F3/301C02F3/302C02F3/307C02F3/34C02F9/00C02F2001/007
Inventor 刘锋吴建华钱飞跃
Owner SUZHOU UNIV OF SCI & TECH
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