CN203683220U - Molysite self-circulating desulfurization anaerobic reactor - Google Patents

Molysite self-circulating desulfurization anaerobic reactor Download PDF

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CN203683220U
CN203683220U CN201320844275.4U CN201320844275U CN203683220U CN 203683220 U CN203683220 U CN 203683220U CN 201320844275 U CN201320844275 U CN 201320844275U CN 203683220 U CN203683220 U CN 203683220U
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molysite
desulfurization
zone
desulfurization zone
reaction
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郑平
邱琳
张萌
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Zhejiang University ZJU
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    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E50/00—Technologies for the production of fuel of non-fossil origin
    • Y02E50/30—Fuel from waste, e.g. synthetic alcohol or diesel
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W10/00—Technologies for wastewater treatment
    • Y02W10/10—Biological treatment of water, waste water, or sewage

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Abstract

The utility model discloses a molysite self-circulating desulfurization anaerobic reactor. The reactor main body is provided with an anaerobic reaction system and a molysite desulfurization system, wherein the anaerobic reaction system is provided with a water distribution area, a reaction area, a separation area and a reflux area; the molysite desulfurization system is provided with a molysite desulfurization area and a molysite regeneration area; hydrogen sulfide generated in the reaction area is introduced into the molysite desulfurization area through the separation area, and is oxidized into elemental sulfur by virtue of ferric iron; the product ferrous iron is introduced into the molysite regeneration area, is oxidized into ferric iron, and flows to the molysite desulfurization area to realize molysite recycling. According to the reactor, the anaerobic reaction system and the molysite desulfurization system are integrated into a whole, so that air pollution caused by H2S escape can be prevented; oxidized H2S is elemental sulfur, so that the sulfur resource can be recycled; the molysite can be recycled, so that the consumption of a desulfurizing agent can be reduced; ferric iron is used in desulfurization instead of oxygen, so that the risk of explosion caused by mixing of methane and oxygen can be reduced, and safety production can be realized.

Description

Molysite self-circulation desulfurization anaerobic reactor
Technical field
The utility model relates to desulfurization anaerobic reactor, relates in particular to a kind of molysite self-circulation desulfurization anaerobic reactor.
Background technology
Along with becoming increasingly conspicuous of environment and energy problem, anaerobe technology is because decontamination being subject to people's favor with the recovery energy.But, in the time adopting anaerobe technical finesse trade effluent, rural sewage and sanitary sewage, easily the vitriol containing in waste water and sulfide are converted into hydrogen sulfide release.Hydrogen sulfide is a kind of toxic and harmful, has following harm: suppress anaerobism function yeast activity, affect anaerobic treatment efficiency; Distribute stench; There is toxicity, affect people with biological healthy; There is corrodibility, corrode pipeline, equipment and instrument etc.; Burning produces sulfurous gas, causes secondary pollution etc.Environmental Protection in China standard regulation: during as the energy, the hydrogen sulfide content in biogas must not exceed 20mg/m 3.Therefore, biogas desulfurization is essential.
At present, conventional biogas desulfurization method has Physical, chemical method and biological process etc., take physico-chemical processes as main.But, in actual application, mainly there is following shortcoming: dry desulfurization efficiency is not high, desulfurizer regeneration difficulty, processes sulfur capacity lower; Wet desulphurization working cost is high.
Summary of the invention
The utility model object is to overcome the deficiencies in the prior art, and a kind of molysite self-circulation desulfurization anaerobic reactor is provided.
Molysite self-circulation desulfurization anaerobic reactor body is provided with anaerobic reaction system and molysite desulphurization system from top to bottom successively, anaerobic reaction system comprises cloth pool, reaction zone, disengaging zone, recirculating zone, cloth pool is provided with shore pipe from top to bottom successively, waste water inlet pipe, current mixed distribution chamber, reaction zone comprises stopple coupon, Sludge Bed, stopple coupon is located on the sidewall of Sludge Bed, disengaging zone comprises triphase separator, gas separation chamber, sludge settling chamber, the first air chamber, overflow weir, the inner side of triphase separator is provided with gas separation chamber, the outside of triphase separator is provided with sludge settling chamber, the top of triphase separator is provided with the first air chamber, overflow weir is located on the sidewall of disengaging zone, recirculating zone is provided with phegma suction pipe from top to bottom in turn, variable valve, phegma communicating pipe, phegma inlet pipe, phegma inlet pipe is connected with current mixed distribution chamber, phegma suction pipe chamber separated from the gas is connected, molysite desulphurization system comprises molysite desulfurization zone and molysite breeding blanket, molysite desulfurization zone is provided with desulfurization zone collection sulphur swash plate, molysite desulfurization zone reaction solution input tube, the second air chamber, biogas output tube from top to bottom in turn, the side wall lower ends of molysite desulfurization zone is provided with desulfurization zone elemental sulfur delivery pipe, the sidewall upper of molysite desulfurization zone is provided with drug-feeding tube, the right side of molysite desulfurization zone is provided with gas block panel, the right side of gas block panel is provided with molysite desulfurization zone reaction solution output tube and is connected with molysite breeding blanket, and desulfurization zone collection sulphur swash plate is provided with tubular cloth device of air, molysite breeding blanket is provided with breeding blanket collection sulphur swash plate, air input tube, aerating apparatus, molysite regenerated liquid reflux, the 3rd air chamber, tail gas discharging pipe from top to bottom in turn, the side wall lower ends of molysite breeding blanket is provided with breeding blanket elemental sulfur delivery pipe, and molysite regenerated liquid reflux is connected with molysite desulfurization zone reaction solution input tube.
Described reactor body is cylindric, and the ratio of reaction zone, disengaging zone and molysite desulphurization system height is 6:3:1～8:4:1, and the diameter ratio of reaction zone and disengaging zone is 1:2.
Described anaerobic reaction system is 5:1～10:1 with the ratio of the volume of molysite desulphurization system; Molysite desulfurization zone is 1:1～2:1 with the ratio of the volume of molysite breeding blanket.
Described desulfurization zone collection sulphur swash plate and horizontal plane angle α are 30～45 °, and tubular cloth device of air is made up of inner and outer tubes, and inner and outer tubes diameter ratio is 2～3:1, and tubular cloth device of air distribution density is 25～100/m 2ferric iron desulphurization reaction liquid is filled in molysite desulfurization zone, and liquid level is lower than edge in tubular cloth device of air inner tube, on gas block panel along on the reaction solution output tube of molysite desulfurization zone along 4～8cm, on the reaction solution input tube of molysite desulfurization zone along being positioned at reaction solution surface, with horizontal plane angle α be 5～10 °.
Described breeding blanket collection sulphur swash plate and horizontal plane angle α are 30～45 °, and ferrous iron regenerated liquid is filled in molysite breeding blanket, and molysite regenerated liquid reflux is semicircle weir notch, and groove is along lower than liquid level, groove depth 2～4cm, and bottom land is connected with molysite desulfurization zone reaction solution input tube.
The beneficial effect that the utility model compared with prior art has: 1. anaerobic reaction system and molysite desulphurization system combine together, can prevent H 2atmospheric pollution due to S leaks; 2. by H 2s is oxidized to elemental sulfur, recyclable sulphur resource; 3. molysite recycle, can reduce sorbent consumption amount; 4. replace oxygen with ferric iron, can reduce the risk of explosion due to methane and oxygen mix, realize and keeping the safety in production.
Accompanying drawing explanation
Fig. 1 is molysite self-circulation desulfurization anaerobic reactor sectional view;
Fig. 2 is the utility model molysite desulphurization system B sectional view;
Fig. 3 is the utility model molysite desulfurization regeneration system B vertical view,
In figure: anaerobic reaction system A, molysite desulphurization system B; Cloth pool A1, reaction zone A2, disengaging zone A3, recirculating zone A4; Molysite desulfurization zone B1, molysite breeding blanket B2; Shore pipe A11, waste water inlet pipe A12, current mixed distribution chamber A13; Stopple coupon A21, Sludge Bed A22; Triphase separator A31, the A32 of gas separation chamber, sludge settling chamber A33, the first air chamber A34, overflow weir A35; Phegma suction pipe A41, variable valve A42, phegma communicating pipe A43, phegma inlet pipe A44; Desulfurization zone collection sulphur swash plate B11, tubular cloth device of air B12, drug-feeding tube B13, gas block panel B14, molysite desulfurization zone reaction solution output tube B15, molysite desulfurization zone reaction solution input tube B16, the second air chamber B17, biogas output tube B18, desulfurization zone elemental sulfur delivery pipe B19; Breeding blanket collection sulphur swash plate B21, breeding blanket elemental sulfur delivery pipe B22, air input tube B23, aerating apparatus B24, molysite regenerated liquid reflux B25, the 3rd air chamber B26, tail gas discharging pipe 27.
Embodiment
As shown in Figure 1, 2, 3, molysite self-circulation desulfurization anaerobic reactor body is provided with anaerobic reaction system A and molysite desulphurization system B from top to bottom successively, anaerobic reaction system A comprises cloth pool A1, reaction zone A2, disengaging zone A3, recirculating zone A4, cloth pool A1 is provided with shore pipe A11 from top to bottom successively, waste water inlet pipe A12, current mixed distribution chamber A13, reaction zone A2 comprises stopple coupon A21, Sludge Bed A22, stopple coupon A21 is located on the sidewall of Sludge Bed A22, disengaging zone A3 comprises triphase separator A31, the A32 of gas separation chamber, sludge settling chamber A33, the first air chamber A34, overflow weir A35, the inner side of triphase separator A31 is provided with the A32 of gas separation chamber, the outside of triphase separator A31 is provided with sludge settling chamber A33, the top of triphase separator A31 is provided with the first air chamber A34, overflow weir A35 is located on the sidewall of disengaging zone A3, recirculating zone A4 is provided with phegma suction pipe A41 from top to bottom in turn, variable valve A42, phegma communicating pipe A43, phegma inlet pipe A44, phegma inlet pipe A44 is connected with current mixed distribution chamber A13, phegma suction pipe A41 chamber A32 separated from the gas is connected, molysite desulphurization system B comprises molysite desulfurization zone B1 and molysite breeding blanket B2, molysite desulfurization zone B1 is provided with desulfurization zone collection sulphur swash plate B11 from top to bottom in turn, molysite desulfurization zone reaction solution input tube B16, the second air chamber B17, biogas output tube B18, the side wall lower ends of molysite desulfurization zone B1 is provided with desulfurization zone elemental sulfur delivery pipe B19, the sidewall upper of molysite desulfurization zone B1 is provided with drug-feeding tube B13, the right side of molysite desulfurization zone B1 is provided with gas block panel B14, the right side of gas block panel B14 is provided with molysite desulfurization zone reaction solution output tube B15 and is connected with molysite breeding blanket B2, desulfurization zone collection sulphur swash plate B11 is provided with tubular cloth device of air B12, molysite breeding blanket B2 is provided with breeding blanket collection sulphur swash plate B21, air input tube B23, aerating apparatus B24, molysite regenerated liquid reflux B25, the 3rd air chamber B26, tail gas discharging pipe B27 from top to bottom in turn, the side wall lower ends of molysite breeding blanket B2 is provided with breeding blanket elemental sulfur delivery pipe B22, and molysite regenerated liquid reflux B25 is connected with molysite desulfurization zone reaction solution input tube B16.
Described reactor body is cylindric, and the ratio of reaction zone A2, disengaging zone A3 and molysite desulphurization system B height is 6:3:1～8:4:1, and the diameter ratio of reaction zone A2 and disengaging zone A3 is 1:2.
Described anaerobic reaction system A is 5:1～10:1 with the ratio of the volume of molysite desulphurization system B; Molysite desulfurization zone B1 is 1:1～2:1 with the ratio of the volume of molysite breeding blanket B2.
Described desulfurization zone collection sulphur swash plate B11 and horizontal plane angle α are 30～45 °, tubular cloth device of air B12 is made up of inner and outer tubes, inner and outer tubes diameter ratio is 2～3:1, tubular cloth device of air B12 distribution density is 25～100/m2, molysite desulfurization zone B1 fills ferric iron desulphurization reaction liquid, liquid level is lower than edge in tubular cloth device of air B12 inner tube, gas block panel B14 is upper along upper along 4～8cm from molysite desulfurization zone B1 reaction solution output tube B15, molysite desulfurization zone reaction solution input tube B16 is upper along being positioned at reaction solution surface, with horizontal plane angle α be 5～10 °.
4, according to a kind of molysite self-circulation desulfurization anaerobic reactor described in right 1, it is characterized in that: described breeding blanket collection sulphur swash plate B21 and horizontal plane angle α are 30～45 °, molysite breeding blanket B2 fills ferrous iron regenerated liquid, molysite regenerated liquid reflux B25 is semicircle weir notch, groove edge is lower than liquid level, groove depth 2～4cm, bottom land is connected with molysite desulfurization zone reaction solution input tube B16.By the aeration of molysite breeding blanket, realize the reaction solution self-circulation between molysite desulfurization zone B1 and molysite breeding blanket B2.
The utility model utilizes ferric salt solution to process biogas, and oxidable hydrogen sulfide is elemental sulfur and is reclaimed, and utilizes aeration that the ferrous iron of molysite desulfurization generation is oxidized to ferric iron simultaneously, realizes the self-circulation utilization of sweetening agent.Reaction process is:
S 2-+Fe 3+→S↓+Fe 2+
2Fe 2++O 2→2Fe 3+
The utility model utilizes trivalent iron salt oxidation H 2s is elemental sulfur, the high and recyclable sulphur resource of desulfuration efficiency; Recycle molysite, can realize desulfurizer regeneration, reduces sorbent consumption amount; Replace oxygen to carry out desulfurization with ferric iron, can reduce the risk of explosion due to methane and oxygen mix, realize and keeping the safety in production.
Three system work process of the utility model are as follows:
Biogas produces system.Comprise cloth pool A1, reaction zone A2, disengaging zone A3, recirculating zone A4, cloth pool A1 is provided with shore pipe A11, waste water inlet pipe A12, current mixed distribution chamber A13, reaction zone A2 is provided with stopple coupon A21, Sludge Bed A22, disengaging zone A3 is provided with triphase separator A31, the A32 of gas separation chamber, sludge settling chamber A33, air chamber A A34, overflow weir A35, and recirculating zone A4 is provided with phegma suction pipe A41, variable valve A42, phegma communicating pipe A43, phegma inlet pipe A44.Waste water, by waste water inlet pipe ingoing stream mixed distribution chamber, changes into biogas by anaerobion by organism in reaction zone, and sulphide salt changes into H 2s, biogas and reaction solution enter triphase separator A31, carry out gas-liquid-solid three-phase separation, gas enters air chamber A A34 by the A32 of gas separation chamber, enter molysite desulfurization zone B1 by tubular type distribution device B12 again, anaerobic treatment water outlet is discharged reactor by overflow weir A35, in overflow weir A35, holds water layer, can prevent that biogas from escaping from overflow weir, also can stop air to enter.Recirculating zone A4 is set, can strengthens reaction zone liquid movement, be conducive to biogas and overflow.
Molysite desulfurization recovery system.Under self air pressure promotes, biogas enters molysite desulfurization zone B1 by tubular type distribution device B12.Upwards flow along tubular type distribution device inner tube, then flow downward under outer tube restriction, contact with molysite doctor solution.Hydrogen sulfide is desulfurized liquid absorption and enters liquid phase, and is removed by ferric sulfate capable of oxidizing simple substance sulphur.The elemental sulfur forming is precipitated to gradually bottom under action of gravity.Desulfurization zone collection sulphur swash plate B11 and horizontal sextant angle α are 30～45 °, and elemental sulfur is collected through desulfurization zone collection sulphur swash plate B11, then is discharged by desulfurization zone elemental sulfur delivery pipe B19.Biogas after desulfurization is discharged via biogas output tube B18.
Molysite self-circulation regeneration system rapidly.The aerating apparatus B24 of molysite breeding blanket B2 can produce negative pressure while carrying out aeration, molysite desulfurization zone B1 is sucked to molysite breeding blanket B2 containing ferrous reaction solution by molysite desulfurization zone reaction solution output tube B15, gas block panel B14 can prevent that biogas from entering molysite breeding blanket B2, also can prevent that air from entering molysite desulfurization zone B1 simultaneously.Aeration produces rising bubble and contacts with liquid, and ferrous iron is oxidized to ferric iron, realizes molysite regeneration.Upstream disturbance regenerated liquid flows into the circular weir notch of molysite regenerated liquid reflux B25 automatically, certainly flow into molysite desulfurization zone reaction solution input tube B16 by vertical tube again, 5～10 ° of molysite desulfurization zone reaction solution input tube B16 and horizontal sextant angles, extend to left side, molysite desulfurization zone, regenerated liquid is mixed at molysite desulfurization zone B1, make full use of.Surplus air discharges by the defeated pipe B26 of putting of tail gas.

Claims (5)

1. a molysite self-circulation desulfurization anaerobic reactor, is characterized in that: reactor body is provided with anaerobic reaction system (A) and molysite desulphurization system (B) from top to bottom successively, anaerobic reaction system (A) comprises cloth pool (A1), reaction zone (A2), disengaging zone (A3), recirculating zone (A4), cloth pool (A1) is provided with shore pipe (A11) from top to bottom successively, waste water inlet pipe (A12), current mixed distribution chamber (A13), reaction zone (A2) comprises stopple coupon (A21), Sludge Bed (A22), stopple coupon (A21) is located on the sidewall of Sludge Bed (A22), and disengaging zone (A3) comprises triphase separator (A31), gas separation chamber (A32), sludge settling chamber (A33), the first air chamber (A34), overflow weir (A35), the inner side of triphase separator (A31) is provided with gas separation chamber (A32), the outside of triphase separator (A31) is provided with sludge settling chamber (A33), the top of triphase separator (A31) is provided with the first air chamber (A34), overflow weir (A35) is located on the sidewall of disengaging zone (A3), and recirculating zone (A4) is provided with phegma suction pipe (A41) from top to bottom in turn, variable valve (A42), phegma communicating pipe (A43), phegma inlet pipe (A44), phegma inlet pipe (A44) is connected with current mixed distribution chamber (A13), and phegma suction pipe (A41) chamber separated from the gas (A32) is connected, molysite desulphurization system (B) comprises molysite desulfurization zone (B1) and molysite breeding blanket (B2), molysite desulfurization zone (B1) is provided with desulfurization zone collection sulphur swash plate (B11) from top to bottom in turn, molysite desulfurization zone reaction solution input tube (B16), the second air chamber (B17), biogas output tube (B18), the side wall lower ends of molysite desulfurization zone (B1) is provided with desulfurization zone elemental sulfur delivery pipe (B19), the sidewall upper of molysite desulfurization zone (B1) is provided with drug-feeding tube (B13), the right side of molysite desulfurization zone (B1) is provided with gas block panel (B14), the right side of gas block panel (B14) is provided with molysite desulfurization zone reaction solution output tube (B15) and is connected with molysite breeding blanket (B2), desulfurization zone collection sulphur swash plate (B11) is provided with tubular cloth device of air (B12), molysite breeding blanket (B2) is provided with breeding blanket collection sulphur swash plate (B21), air input tube (B23), aerating apparatus (B24), molysite regenerated liquid reflux (B25), the 3rd air chamber (B26), tail gas discharging pipe (B27) from top to bottom in turn, the side wall lower ends of molysite breeding blanket (B2) is provided with breeding blanket elemental sulfur delivery pipe (B22), and molysite regenerated liquid reflux (B25) is connected with molysite desulfurization zone reaction solution input tube (B16).
2. according to a kind of molysite self-circulation desulfurization anaerobic reactor described in right 1, it is characterized in that: described reactor body is cylindric, the ratio of reaction zone (A2), disengaging zone (A3) and molysite desulphurization system (B) height is 6:3:1 ~ 8:4:1, and the diameter ratio of reaction zone (A2) and disengaging zone (A3) is 1:2.
3. according to a kind of molysite self-circulation desulfurization anaerobic reactor described in right 1, it is characterized in that: described anaerobic reaction system (A) is 5:1 ~ 10:1 with the ratio of the volume of molysite desulphurization system (B); Molysite desulfurization zone (B1) is 1:1 ~ 2:1 with the ratio of the volume of molysite breeding blanket (B2).
4. according to a kind of molysite self-circulation desulfurization anaerobic reactor described in right 1, it is characterized in that: described desulfurization zone collection sulphur swash plate (B11) is 30 ~ 45 ° with horizontal plane angle α, tubular cloth device of air (B12) is made up of inner and outer tubes, inner and outer tubes diameter ratio is 2 ~ 3:1, and tubular cloth device of air (B12) distribution density is 25 ~ 100/m 2ferric iron desulphurization reaction liquid is filled in molysite desulfurization zone (B1), liquid level is lower than edge in tubular cloth device of air (B12) inner tube, gas block panel (B14) is upper along upper along 4 ~ 8cm from molysite desulfurization zone (B1) reaction solution output tube (B15), molysite desulfurization zone reaction solution input tube (B16) is upper along being positioned at reaction solution surface, with horizontal plane angle α be 5 ~ 10 °.
5. according to a kind of molysite self-circulation desulfurization anaerobic reactor described in right 1, it is characterized in that: described breeding blanket collection sulphur swash plate (B21) is 30 ~ 45 ° with horizontal plane angle α, (B2) fills ferrous iron regenerated liquid in molysite breeding blanket, molysite regenerated liquid reflux (B25) is semicircle weir notch, groove edge is lower than liquid level, groove depth 2 ~ 4cm, bottom land is connected with molysite desulfurization zone reaction solution input tube (B16).
CN201320844275.4U 2013-12-19 2013-12-19 Molysite self-circulating desulfurization anaerobic reactor Withdrawn - After Issue CN203683220U (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103723823A (en) * 2013-12-19 2014-04-16 浙江大学 Self-circulation ferric salt desulfurization anaerobic reactor
CN104591382A (en) * 2015-01-20 2015-05-06 南京大学 Efficient anaerobic reactor resistant to high-concentration sulphate and method for treating wastewater using efficient anaerobic reactor
CN107890758A (en) * 2017-11-09 2018-04-10 中海油天津化工研究设计院有限公司 A kind of outer circulation type electrochemistry sewage treatment plant deodoration system and method
CN108905599A (en) * 2018-09-04 2018-11-30 浙江大学 Interior circulating biological desulfurization reactor and method

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103723823A (en) * 2013-12-19 2014-04-16 浙江大学 Self-circulation ferric salt desulfurization anaerobic reactor
CN104591382A (en) * 2015-01-20 2015-05-06 南京大学 Efficient anaerobic reactor resistant to high-concentration sulphate and method for treating wastewater using efficient anaerobic reactor
CN107890758A (en) * 2017-11-09 2018-04-10 中海油天津化工研究设计院有限公司 A kind of outer circulation type electrochemistry sewage treatment plant deodoration system and method
CN108905599A (en) * 2018-09-04 2018-11-30 浙江大学 Interior circulating biological desulfurization reactor and method
CN108905599B (en) * 2018-09-04 2023-09-01 浙江大学 Internal circulation biological desulfurization reactor and method

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