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A block anaerobic treatment method for organic wastewater

A technology for anaerobic treatment and organic wastewater, applied in the field of water treatment, can solve the problems of low treatment efficiency, imprecise process control, difficulty in the proliferation of granular sludge, etc., and achieve the effect of reducing consumption, improving reaction efficiency and reaction effect

Active Publication Date: 2022-01-11
NANJING UNIV +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] Aiming at the shortcomings of the existing anaerobic reaction unit, such as low treatment efficiency, difficult proliferation of granular sludge, and inaccurate process control, the present invention provides a block anaerobic treatment method for high-concentration organic wastewater, which is set according to the advantages of different sludge Different sludge partitions, precise control of process parameters at different stages, greatly improve the treatment efficiency of the anaerobic process, and increase the output of granular sludge

Method used

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  • A block anaerobic treatment method for organic wastewater
  • A block anaerobic treatment method for organic wastewater
  • A block anaerobic treatment method for organic wastewater

Examples

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Embodiment 1

[0053] The diameter of the flocculent sludge treatment unit 100 in this embodiment is 3.5m, and the total effective height is 1.5m. Four sludge baffles are arranged in the flocculent sludge treatment unit 100, and the baffles and the side walls of the reactor adopt The bracket is connected to prevent the sludge dead zone. The total length of the bracket and the sludge baffle is 1.5m, and a sludge baffle is arranged symmetrically every 0.3m. The angle between the baffle and the side wall of the reactor is 70 degrees The diameter of the transition unit 200 is 3.5m, and the total effective height is 4m. Two sludge baffles are arranged in the transition unit 200, and the baffles and the reactor side walls are connected by brackets to prevent sludge dead zones. The total length of the sludge baffle is 1.0m, and the left and right baffles are symmetrically arranged at a height of 2.5m in the transition unit. The angle between the baffle and the side wall of the reactor is 65 degrees,...

Embodiment 2

[0069] The diameter of the flocculent sludge treatment unit 100 described in this embodiment is 4.8m, and the total effective height is 2.0m. Four sludge baffles are arranged in the reactor of the flocculent sludge treatment unit 100, and the baffles and the reactor The side walls are connected by brackets to prevent sludge dead zones. The total length of the brackets and sludge baffles is 1.8m, and a sludge baffle is arranged symmetrically every 0.4m. The angle between the baffles and the side wall of the reactor The diameter of the transition unit 200 is 4.0m, and the total effective height is 4m. There are 4 sludge baffles in the transition unit 200, and the baffles are connected to the side wall of the reactor by brackets to prevent sludge dead zone , the total length of the bracket and the sludge baffle is 1.5m, and the baffles are symmetrically arranged at the transition unit heights of 2.0m and 3.0m, and the angle between the baffle and the side wall of the reactor is 65...

Embodiment 3

[0085] The device in this embodiment is a tower structure, and the flocculent sludge treatment unit 100, the transition unit 200, and the granular sludge unit 300 are integrated into a reaction tower, and the diameter of the reaction tower is 3.5m. The total effective height of the flocculent sludge treatment unit 100 in this embodiment is 2.0m, and two sludge baffles are arranged inside, and the baffles are connected to the side wall of the reactor by brackets to prevent sludge dead zones. The total length with the sludge baffle is 0.8m, and a sludge baffle is arranged symmetrically at an effective height of 1.5m. The angle between the baffle and the side wall of the reactor is 60 degrees. In the flocculent sludge treatment unit 100 100 two-phase separators 120 are arranged on the inner top, and a partition with holes is arranged between the flocculent sludge treatment unit 100 and the transition unit 200, and through holes of 0.3 to 0.5 mm are arranged on the partition; the t...

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Abstract

The invention discloses a block-based anaerobic treatment method for organic wastewater, which belongs to the technical field of water treatment. It includes the following steps: 1) passing the water body to be treated into a flocculent sludge treatment unit inoculated with flocculent sludge for treatment; 2) passing 1) effluent into a transition unit for treatment, and the transition unit contains flocculent Sludge and granular sludge; 3) passing 2) the effluent into a granular sludge treatment unit inoculated with granular sludge for treatment; wherein part of the effluent of the granular sludge treatment unit is returned to the flocculent sludge treatment unit and / or Or transition unit and / or granular sludge treatment unit. According to the advantages of different sludges, the present invention sets different sludge partitions, precisely controls the process parameters at different stages, greatly improves the treatment efficiency of the anaerobic process, and increases the output of granular sludge.

Description

technical field [0001] The invention belongs to the technical field of water treatment, and more specifically relates to a block-based anaerobic treatment method for organic wastewater. 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, using the anaerobic reaction unit to treat high-concentration organic wastewater with good biochemical properties has an irreplaceable advantage. 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 includes four stages: h...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F3/28C02F3/34
CPCC02F3/286C02F3/006C02F3/34C02F2209/06
Inventor 张炜铭高亚娟汪林牛志华吕振华
Owner NANJING UNIV
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