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Built-in block anaerobic reactor for organic wastewater

An anaerobic reactor and organic wastewater technology, applied in the field of water treatment, can solve the problems of difficulty in proliferation, poor dominance of sludge flora, poor hydrolysis effect, etc., and achieve the effect of improving reaction efficiency and reaction effect.

Active Publication Date: 2021-06-11
NANJING UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0012] Aiming at the problems in the above-mentioned EGSB anaerobic reactor, such as shearing and crushing of granular sludge, difficulty in proliferation, poor hydrolysis effect, and poor dominance of sludge flora, the present invention provides a high-concentration, large-volume organic wastewater built-in area Block anaerobic reactor, according to the advantages of different sludge, set different sludge partitions, which can effectively solve the crushing of granular sludge, ensure the contribution rate of dominant bacteria, and improve the reaction efficiency and effect of the reactor

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  • Built-in block anaerobic reactor for organic wastewater
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  • Built-in block anaerobic reactor for organic wastewater

Examples

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Embodiment 1

[0060] Such as figure 1 As shown, in this embodiment, the above-mentioned high-concentration organic wastewater built-in block anaerobic reactor is used to treat the wastewater in the fermentation pharmaceutical industry, and the treated water volume is 100m 3 / d, the total residence time is 24h, and the influent and effluent water quality are shown in Table 1 below.

[0061] In the reactor 100 in this embodiment, a flocculent sludge zone 110, a transition zone 130, and a granular sludge zone 150 are arranged inside the reactor 100. The bottom of the flocculent sludge zone 110 is provided with a bottom water distributor 112, and the bottom of the transition zone 130 is provided with a transition zone. Water distributor 131 in the transition zone. The effluent from the upper part of the granular sludge area 150 can be optionally returned to the flocculent sludge area 110 and / or the transition area 130 through the circulation pipe 200; the transition area 130 is provided with t...

Embodiment 2

[0076] In this embodiment, the reactor 100 mainly treats the high-sugar wastewater produced in the food processing industry, the initial COD concentration is 20000mg / L, and the treated water volume is 50m 3 / d for a total residence time of 36 hours.

[0077] The high-concentration organic wastewater built-in block anaerobic reactor structure in this embodiment is basically the same as that of Embodiment 1, the only difference is that the effective volume of the reactor 100 is 75m 3 . The diameter of the designed reactor 100 is 3.5m, the effective height is 8m, and the total height is 10m. The effective height of the flocculent sludge zone 110 is 1.5m, the effective height of the transition zone 130 is 1m, and the effective height of the granular sludge zone 150 is 7.5m. The amount of water returned from the circulation pipeline 200 to the flocculent sludge area 110 is 2.1m 3 / h, the amount of water flowing back to the transition zone 130 is 37.5m 3 / h.

[0078] Such as ...

Embodiment 3

[0090] In this embodiment, the reactor 100 mainly treats wastewater from the biological fermentation industry, and the treated water volume is 600m 3 / d, which is 25m 3 / h, the initial COD concentration is 8050mg / L, and the total residence time is 20h.

[0091] The structure of the high-concentration organic wastewater built-in block anaerobic reactor in this embodiment is basically the same as in Embodiment 1, the only difference is that the effective volume of the reactor 100 is 500m 3 . The diameter of the designed reactor 100 is 7m, the effective height is 13m, and the total height is 15m. The effective height of the flocculent sludge zone 110 is 3m, the effective height of the transition zone 130 is 2m, and the effective height of the granular sludge zone 150 is 10m. The amount of water flowing back from the circulation pipeline 200 to the transition zone 130 is 150m 3 / h, the circulation pipeline 200 no longer returns to the flocculent sludge zone 130.

[0092] Such...

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Abstract

The invention discloses a built-in block anaerobic reactor for organic wastewater, and belongs to the technical field of water treatment. The built-in block anaerobic reactor comprises a reactor and a circulating pipeline, a water inlet is formed in one end of the reactor, a water outlet is formed in the other end of the reactor, and a flocculent sludge area used for being filled with flocculent sludge, a transition area used for containing the flocculent sludge and granular sludge and a granular sludge area used for being filled with the granular sludge are sequentially arranged in the reactor in the direction from the water inlet to the water outlet; a three-phase separation system is arranged in each of the granular sludge area and the transition area; effluent of the reactor flows back to the flocculent sludge area or the flocculent sludge area and the transition area through a circulating pipeline; or the effluent of the reactor flows back to the flocculent sludge area or the flocculent sludge area and the transition area through a circulating pipeline provided with a metering pump.

Description

technical field [0001] The invention belongs to water treatment technology, and more specifically relates to an anaerobic reactor device for fermenting high-concentration and large-volume organic waste water. Background technique [0002] Anaerobic fermentation is a common treatment process for high-concentration organic wastewater. It converts organic matter in wastewater into methane through the action of anaerobic microorganisms. Methane can be burned to generate electricity and incorporated into the national grid. Therefore, the use of anaerobic reactors to treat high-concentration organic wastewater with good biochemical properties has irreplaceable advantages. While solving environmental problems, it has realized the resource utilization of high-concentration organic wastewater and achieved a win-win environment, economy and social benefits. . [0003] The process of anaerobic fermentation of high-concentration organic wastewater to remove organic matter mainly includ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F3/28C12M1/107C12M1/00C02F101/30
CPCC02F3/28C12M21/04C12M23/36C12M43/08C02F2209/06C02F2203/006C02F2203/004C02F2101/30
Inventor 张炜铭高亚娟汪林牛志华任胜利李兵吕振华
Owner NANJING UNIV
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