Integrated two-phase anaerobic desulfurization reactor and wastewater treatment method thereof

An integrated technology for wastewater treatment, applied in anaerobic digestion treatment, chemical instruments and methods, biological water/sewage treatment, etc. Unreasonable structure and other problems, to achieve the effect of increasing the mud-water mixing effect, the mud-water mixing state is good, and the floor space is small

Active Publication Date: 2016-07-20
NANJING UNIV +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0009] In view of the prior art, the high concentration of sulfate radicals in the process of treating wastewater in the two-phase anaerobic reactor will inhibit microorganisms, the desulfurization phase and the methanogenic phase cannot be separated independently, the reactor is not stro

Method used

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  • Integrated two-phase anaerobic desulfurization reactor and wastewater treatment method thereof

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Example Embodiment

[0038] Example 1

[0039] An integrated two-phase anaerobic desulfurization reactor of this embodiment includes a desulfurization reaction tank and a methanogenesis reaction tank, and also includes a water sealing tank 5 and a tail gas processing unit 6; the desulfurization reaction tank and the methane generation reaction tank are integrated Type structure, the waste water enters the desulfurization reaction tank and the methanogenesis reaction tank to be processed in sequence. The desulfurization reaction tank and the methanogenesis reaction tank are separated by a partition wall 7 and are connected through an outlet weir. The gas produced by the desulfurization reaction tank and the methane production reaction tank is collected by the biogas collection header 501 and then enters the water seal tank 5; the upper tail gas of the water seal tank 5 is passed through the pipeline to the tail gas treatment unit 6; the tail gas treatment unit 6 includes Desulfurization unit and bioga...

Example Embodiment

[0044] Example 2

[0045] An integrated two-phase anaerobic desulfurization reactor of this embodiment, such as figure 1 As shown, the desulfurization reaction tank and the methanogenesis reaction tank are both two-stage, namely, the first-level desulfurization reaction tank 1, the second-level desulfurization reaction tank 2, the first-level methanation reaction tank 3, and the second-level methanation reaction tank 4. The sludge in the two-stage desulfurization reaction tank can be flocculent sludge, and the sludge concentration is 8kgVSS / m 3 , The sludge in the two-stage methanogenesis reaction tank is granular sludge, and the sludge concentration is 20kgVSS / m 3 ; And are equipped with water distribution zone and reaction zone, respectively, the first-level desulfurization reaction tank water distribution zone 103 and the first-level desulfurization reaction zone 113, the second-level desulfurization reaction tank water distribution zone 203 and the second-level desulfurization...

Example Embodiment

[0050] Example 3

[0051] The one-piece two-phase anaerobic desulfurization reactor of this embodiment has the same basic structure as that of Embodiment 2. The improvement lies in that: before the desulfurization reaction tank, an inflow rectification zone 102 is also provided, and the wastewater enters the inflow rectification zone 102 to rectify Then it enters the water distribution area 103 of the first-level desulfurization reaction tank through the outlet weir to ensure the stability of the water flow. The bottom of the two-stage desulfurization reaction tank is also provided with a biogas aeration head (respectively the first-level desulfurization reaction tank biogas aeration head 110, the second-level desulfurization reaction tank biogas aeration head 210), in the water distribution area (respectively the first-level desulfurization The reaction tank water distribution area 103 and the secondary desulfurization reaction tank water distribution area 203) are arranged on o...

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Abstract

The invention discloses an integrated two-phase anaerobic desulfurization reactor and a wastewater treatment method thereof and belongs to the field of wastewater treatment devices.The integrated two-phase anaerobic desulfurization reactor comprises a desulfurization reaction tank and a methane-producing reaction tank which are of an integrated structure, wastewater enters the desulfurization reaction tank and the methane-producing reaction tank and is processed sequentially, and the desulfurization reaction tank and the methane-producing reaction tank are separated by a separation wall and communicated by an effluent weir.According to the wastewater treatment method of the integrated two-phase anaerobic desulfurization reactor, the integrated two-phase anaerobic desulfurization reactor can be applied to treatment of high-concentration sulfate wastewater and high-concentration organic wastewater by single reaction step of desulfurization action and methane production reaction and has the advantages that the desulphurization efficiency is high, the resistance to impact load is high, the mixing state is good, and the occupied area is small.

Description

technical field [0001] The invention belongs to the field of wastewater treatment devices, and in particular relates to an integrated two-phase anaerobic desulfurization reactor and a wastewater treatment method thereof. Background technique [0002] Many industrial wastewaters usually contain high concentrations of sulfates, sulfites and sulfides, such as edible oil refining wastewater, potato starch production wastewater, pulping wastewater and papermaking wastewater, etc. This type of wastewater also contains high concentrations of organic matter , usually require anaerobic treatment. High concentrations of sulfate and sulfite will have a serious impact on the anaerobic methanogenic stage. For example, when the concentration of sulfite in water exceeds 150-200mg / L, it will have a serious inhibitory effect on methanogens. Therefore, it is usually necessary to use sulfate-reducing bacteria (SRB) to convert high-concentration sulfate in wastewater into H 2 S, so that the s...

Claims

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Application Information

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IPC IPC(8): C02F3/28
CPCC02F3/286C02F2101/101Y02E50/30
Inventor 汪林陈良张炜铭吕路石家杰李丽芳赵昕
Owner NANJING UNIV
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