CN1907886A - Waste water treatment apparatus for generating firedamp and self-circulating anaerobic reactor thereby - Google Patents

Waste water treatment apparatus for generating firedamp and self-circulating anaerobic reactor thereby Download PDF

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Publication number
CN1907886A
CN1907886A CNA2006100409254A CN200610040925A CN1907886A CN 1907886 A CN1907886 A CN 1907886A CN A2006100409254 A CNA2006100409254 A CN A2006100409254A CN 200610040925 A CN200610040925 A CN 200610040925A CN 1907886 A CN1907886 A CN 1907886A
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China
Prior art keywords
reactor
biogas
self
tank
anaerobic reactor
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CNA2006100409254A
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CN100376492C (en
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阮文权
邹华
严群
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WUXI MASHENG ENVIRONMENT ENERGY TECHNOLOGY CO., LTD.
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Jiangnan University
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    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E50/00Technologies for the production of fuel of non-fossil origin
    • Y02E50/30Fuel from waste, e.g. synthetic alcohol or diesel

Abstract

This invention relates to a biogas production wastewater treatment device and a cycle anaerobic reactor used in the device, which is used for environmental engineering. The device invented consists of a new self-cycle anaerobic reactor and a computer control system. The core self-cycle anaerobic reactor comprises two overlapping anaerobic reaction zones in series, wherein the upper parts of the two reaction zone are established gas-solid-liquid three phase separators respectively. The lower reaction zone is at an extreme high load, while the upper reaction zone is at low load. The three-phase separator sludge can be separated and returned to the main separator by the separator and biogas is collected. Internal reactor is capable of forming self-circle liquid, and can strengthen mass transfer process of organism and granular sludge and improve handling capability. The floor place of the three phase separator is small, high concentration of organic wastewater can be treated and biogas as biological energy can be produced. The device can achieve the scale biogas technology and automated production, and is an ideal scale wastewater treatment and gas production equipment.

Description

Produce the wastewater treatment equipment and the used self-circulating anaerobic reactor of this device of biogas
Technical field
A kind of wastewater treatment equipment and used self-circulating anaerobic reactor of this device that produces biogas.Specifically, be to handle various organic waste waters, and can produce the self-circulation anaerobic biological reaction unit of biogas.
Background technology
China's economy has obtained unprecedented growing continuously and fast since the reform and opening-up, but, because the rapid expansion of development of resources and the rapid growth of energy consumption, ecological damage of China and environmental pollution have reached very serious degree, and energy problem has also become the very important factor of restriction China's Economic development.In order to realize the Sustainable development of China's economy and society, must resolve the contradiction of development and environment protection.
Anaerobic biological reactor can not only effectively be handled organic waste water, and can produce bioenergy---biogas.Anaerobic technique has developed into the multiple reactor types of CGSB (EGSB and IC) of anaerobic filter (AF), anaerobic fluidized bed reactor (AFB), up-flow anaerobic sludge blanket (UASB) and the third generation of the s-generation from the anaerobic digester of the initial first-generation through the development in over one hundred year.Along with industrialized propelling, energy dilemma and problem of environmental pollution are more and more outstanding, and existing reactors can not well meet the demands.
The self-circulating anaerobic bioreactor that the present invention relates to is the example of the research and development of anerobic sowage biological treatment.This processing and waste production biogas energy aspect for national trade effluent has high practical value and realistic meaning.
Summary of the invention
The purpose of this invention is to provide a kind of new and effective, floor space is little, can handle high-concentration industrial and city organic waste water and can produce bioenergy---the self-circulating anaerobic bioreactor of biogas, can accomplish scale modularization, automatization, the efficient factor of created gase of biogas production.
Technical scheme of the present invention: the device of the anaerobic biological treatment organic waste water of the full-automatic highly effective methane-producing of forming by novel self-circulating anaerobic reactor and computer supervisory control system.In conjunction with the accompanying drawings 1 and 2 pairs of of the present invention being described as follows of accompanying drawing:
Full automatic high efficiency treatment of Organic Wastewater that the wastewater treatment equipment of product biogas of the present invention is made up of self-circulating anaerobic reactor and computer supervisory control system and the device that produces biogas, described device is by data handler 1, online biogas detector 2, digester 3, scrubber tank 4, gas meter 5, floating gas tank 6, self-circulating anaerobic reactor 7, the temperature panel shows 8, the pH panel shows 9, temperature overheating control 10, control data cabinet 11, terminal controller 12, charging stock tank 13, low liquid level warning 14, fresh feed pump 15, surge tank 16, recycle pump 17, heat pump 18, well heater 19, computer data line 20 constitutes, charging stock tank 13 connects fresh feed pump 15, fresh feed pump 15 connects surge tank 16, surge tank 16 is connected with reactor 7, waste water comes out to squeeze into reactor bottom waste water import 26 through recycle pump 17 from surge tank 16, get back to surge tank by the wastewater outlet 22 on reactor top and form a circulation line, after wastewater treatment is up to standard, discharge from surge tank 16 bottom drain, the biogas that produces is drawn by reactor head vapour liquid separator 27 in the reactor, biogas is by the floating gas tank 6 of pipeline process successively, gas meter 5, send the user to use behind scrubber tank 4 and the digester 3, reactor bottom is provided with evacuation port 36, this device is equipped with online biogas detector 2 and data handler 1, joins with digester biogas is carried out online detection; By the adding hot water inlet 34, add hot water outlet 24 and form a heating cycle pipeline of well heater 19, heat pump 18 and self-circulating anaerobic reactor 7, hot water heats reactor by reactor jacket; Temperature overheating control 10 is housed on well heater, at inside reactor temp probe 21 and pH probe 28 are housed, temp probe 21 is connected with temperature panel demonstration 8, pH probe 28 shows that with the pH panel 9 are connected, design has a control data cabinet 11, with gas meter, temperature panel show, the pH panel shows, temperature overheating control and the demonstration and/or the operation control of floating low liquid level alarm device, fresh feed pump, recycle pump and the heat pump of gas tank, charging stock tank all operate by the control data cabinet, the control data cabinet is connected with terminal controller 12 by computer data line 20.
Reactor of the present invention can be made by steel plate, glass or other materials.The principal feature of self-circulating anaerobic reactor is exactly that inside reactor can form the liquid self-circulation, and the mass transfer process of organism and granule sludge is strengthened, and the processing power of reactor is improved.Its another characteristics are in reactor the separation of biogas to be divided into two stages.
Self-circulating anaerobic reactor is that cylindrical structural is vertically placed, the bottom is first reaction zone 25, top is second reaction zone 23, first reaction zone, 25 tops are provided with one-level triphase separator 33, second reaction zone, 23 tops are provided with secondary triphase separator 30, one-level triphase separator 33 is provided with the gas-liquid separator 27 that biogas-lift pipe 32 is connected to reactor head, gas-liquid separator 27 bottoms connect return line 31 and extend to reactor lower part, side opening respectively is waste water import 26, wastewater outlet 22, add hot water inlet 34, add hot water outlet 24, establish temp probe 21 and pH probe 28 in the reactor, stainless steel tightness system 29 is taked on the top, and base 35 is fixed by nut.
The installation of self-circulating anaerobic reactor, reactor is vertically placed, and base is fixed by nut, and outer wall is fixed by the waist hoop, and nut seal is passed through by the stainless steel sealing cover in the top.
The self-circulating anaerobic reactor volume is 8L-2000m 3, aspect ratio H: D is 15: 1-5: 1, and material is glass or iron and steel, upper and lower opening is connected with steel flange.
Surge tank is cylindrical, and volume is 3.5L-300m 3, material is glass or iron and steel.
Floating gas tank is in bulbus cordis back-off and the cylindrical vessel in midair, and material is glass or iron and steel.
Temperature and pH in the reactor add the hot water liquid level, and the biogas amount is by computer system control and detection automatically.
Beneficial effect of the present invention: self-circulating anaerobic reactor of the present invention is composed in series by eclipsed anaerobic reaction district about in the of two, one of the bottom is in extreme high loading, one of top is in underload, two reaction zone tops respectively are provided with a gas-solid-liquid triphase separator, to the good mud of sedimentation or granule sludge separate and subside and Returning reactor main body and collect biogas respectively voluntarily, must not set up precipitation separation device, auxiliary de-gassing vessel and returned sluge equipment, simplify technology, saved investment and working cost; Inside reactor can form the liquid self-circulation, and the mass transfer process of organism and granule sludge is strengthened, and therefore has higher organic loading, has higher upflow velocity, and the processing power of reactor is improved, and improves the efficient of reactor greatly; The impact capacity of the anti-unfavourable condition of reactor strengthens; In reactor, need not add filler and carrier, improve capacity utilization, avoid blockage problem.
Link to each other with computer by data line simultaneously, the temperature in the reactor, pH adds the hot water liquid level, and the biogas amount is by computer system control and detection automatically, and level of automation is very high, greatly reduces hand labor intensity.
This device both can effectively be handled industrial organic waste water, reduced environmental pollution, can also replenish the cities and towns energy resource supply, made more contribution in the biogas production field for the environmental protection cause of country.It is in structure and use the principle that uniqueness is arranged, and its field of using is anaerobic treatment industrial organic waste water High-efficient Production biogas.It has following characteristics:
(1) aspect ratio is big, and floor space is little, and initial cost is economized;
(2) organic loading rate height, hydraulic detention time is short;
(3) stable water outlet, the anti impulsion load ability is strong;
(4) applied widely, can handle low middle and high concentration waste water, can handle toxic substances waste water;
(5) can produce bioenergy---biogas.
Description of drawings
The wastewater treatment equipment of Fig. 1 highly effective methane-producing constitutes synoptic diagram.
Fig. 2 self-circulating anaerobic reactor structure iron.
1, data handler, 2, online biogas detector, 3, digester, 4, scrubber tank, 5, gas meter, 6, floating gas tank, 7, self-circulating anaerobic reactor, 8, the temperature panel shows, 9, the pH panel shows, 10, temperature overheating control, 11, the control data cabinet, 12, terminal controller, 13, charging stock tank, 14 low liquid level warnings, 15, fresh feed pump, 16, surge tank, 17, recycle pump, 18, heat pump, 19, well heater, 20, computer data line.
Relative configurations on the reactor is: 21, temp probe, 22, wastewater outlet, 23, second reaction zone, 24, add hot water outlet, 25, first reaction zone, 26, the waste water import, 27, vapour liquid separator, 28, pH probe, 29, tightness system, 30, secondary triphase separator, 31, return line, 32, the biogas-lift pipe, 33, one-level triphase separator, 34, add hot water inlet, 35, base, 36, evacuation port.
Embodiment
Give further detailed explanation below by embodiment to the present invention.
Embodiment 1: self-circulating anaerobic reactor is to the clearance of COD
The most important index of organic pollutant is exactly a chemical oxygen demand COD in the waste water, and self-circulating anaerobic reactor should have very high removal effect to the COD in the waste water.Adopt molasses alcohol waste water to take from Changji Sugar Refinery, Xinjiang, be Vandyke brown.Waste water COD concentration is 107900mg/L, and sulfate concentration is 1742mg/L, and colourity is 2000 times, and pH 4.67.Fs: water inlet COD concentration is 5000~6000mg/L, controls volumetric loading by adjusting flooding velocity, from 4~5kgCOD/m 3D progressively improves load, and the fs finishes volumetric loading and reaches 10kgCOD/m 3D; Subordinate phase: water inlet COD concentration is about 10000mg/L, volumetric loading 10-20kgCOD/m 3D; Phase III: water inlet COD concentration is about 20000mg/L, volumetric loading 20-40kgCOD/m 3D; The quadravalence section: water inlet COD concentration is about 30000mg/L, volumetric loading 40kgCOD/m 3D.
Volumetric loading during reactor start-up is 5kgCOD/m 3D.Clearance reached 90% very soon, observed the appearance of self-circulation at the 8th day, started to finish.Improve the concentration of water inlet subsequently.
Intake COD concentration between 5000~13000mg/L in fs and subordinate phase, and water outlet is between 500~1200mg/L, and clearance remains on about 90%.After entering the phase III, influent concentration is promoted to 20000mg/L, goes out water concentration and begins a bit fluctuation, recovers steadily after having passed through two residence time.After entering the quadravalence section, COD is promoted to 26000mg/L, and clearance drops to 78.7% suddenly, clearance returns to more than 90% again after having kept two residence time, effluent COD concentration after influent concentration is promoted to 30000mg/L, stablizes is about 2000mg/L, and clearance reaches more than 90%.
Embodiment 2: self-circulating anaerobic reactor produces the composition of biogas
Adopt the molasses alcohol waste water water inlet of Changji Sugar Refinery, Xinjiang, the methane content in the aerogenesis remains at more than 70% (table 1), and when influent concentration reached 30000mg/L, methane content had reached 83.67%, and visible reactor can produce high-quality biogas.
Table 1 aerogenesis component
Influent concentration (mg/L) 10000 20000 30000
Volumetric loading (kg/m 3d) CO 2(%) aerogenic composition H 2S(%) CH 4(%) 12 24.4 0.18 75.42 22 27.8 0.22 71.89 38 22.4 0.09 77.51 38 16.2 0.13 83.67

Claims (2)

1, a kind of wastewater treatment equipment of highly effective methane-producing, it is characterized in that full automatic high efficiency treatment of Organic Wastewater of forming by self-circulating anaerobic reactor and computer supervisory control system and the device that produces biogas, described device is by data handler (1), online biogas detector (2), digester (3), scrubber tank (4), gas meter (5), floating gas tank (6), self-circulating anaerobic reactor (7), the temperature panel shows (8), the pH panel shows (9), temperature overheating control (10), control data cabinet (11), terminal controller (12), charging stock tank (13), low liquid level warning (14), fresh feed pump (15), surge tank (16), recycle pump (17), heat pump (18), well heater (19), computer data line (20) constitutes, charging stock tank (13) connects fresh feed pump (15), fresh feed pump (15) connects surge tank (16), surge tank (16) is connected with self-circulating anaerobic reactor (7), waste water comes out to squeeze into reactor bottom waste water import (26) through recycle pump (17) from surge tank (16), get back to surge tank by the wastewater outlet (22) on reactor top and form a circulation line, after wastewater treatment is up to standard, discharge from surge tank (16) bottom drain, in the reactor the biogas that produces draw by reactor head vapour liquid separator (27), biogas is by the floating gas tank (6) of pipeline process successively, gas meter (5), send the user to use behind scrubber tank (4) and the digester (3), reactor bottom is provided with evacuation port (36), this device is equipped with online biogas detector (2) and data handler (1), joins with digester biogas is carried out online detection; By the adding hot water inlet (34), add hot water outlet (24) and form a heating cycle pipeline of well heater (19), heat pump (18) and self-circulating anaerobic reactor (7), hot water heats reactor by reactor jacket; Temperature overheating control (10) is housed on well heater, at inside reactor temp probe (21) and pH probe (28) are housed, temp probe (21) shows that with the temperature panel (8) are connected, pH probe (28) shows that with the pH panel (9) are connected, design has a control data cabinet (11), with gas meter, the temperature panel shows, the pH panel shows, gas tank is controlled and floated to temperature overheating, the low liquid level alarm device of charging stock tank, fresh feed pump, the demonstration of recycle pump and heat pump and/or operation control all operate by the control data cabinet, and the control data cabinet is connected with terminal controller (12) by computer data line (20).
2, the wastewater treatment equipment of highly effective methane-producing according to claim 1, it is characterized in that used self-circulating anaerobic reactor is that cylindrical structural is vertically placed, the bottom is first reaction zone (25), top is second reaction zone (23), first reaction zone (25) top is provided with one-level triphase separator (33), second reaction zone (23) top is provided with secondary triphase separator (30), one-level triphase separator (33) is provided with the gas-liquid separator (27) that biogas-lift pipe (32) is connected to reactor head, gas-liquid separator (27) bottom connects return line (31) and extends to reactor lower part, side opening respectively is waste water import (26), wastewater outlet (22), add hot water inlet (34), add hot water outlet (24), establish temp probe (21) and pH probe (28) in the reactor, stainless steel tightness system (29) is taked on the top, and base (35) is fixed by nut.
CNB2006100409254A 2006-08-09 2006-08-09 Waste water treatment apparatus for generating firedamp and self-circulating anaerobic reactor thereby Expired - Fee Related CN100376492C (en)

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Cited By (8)

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CN101891341A (en) * 2010-07-01 2010-11-24 江南大学 Anaerobic reactor with three-phase separators at upper and lower layers and method for landfill leachate treatment
CN101962253A (en) * 2010-10-22 2011-02-02 中国林业科学研究院林产化学工业研究所 Three-stage three-cycle anaerobic reactor
CN103881905A (en) * 2014-01-29 2014-06-25 中国科学院成都生物研究所 Embedded bioelectricity synthesis system and method
CN104326558A (en) * 2014-11-11 2015-02-04 南京大学 Device for simulating in-situ river course sediment anaerobic ammoxidation process, and use method and application thereof
CN106698643A (en) * 2015-11-18 2017-05-24 中国石油化工股份有限公司 Wastewater treatment device and wastewater treatment method thereof
CN106698655A (en) * 2015-11-18 2017-05-24 中国石油化工股份有限公司 Wastewater denitrification nitrogen removal treatment device and method
CN111484201A (en) * 2020-04-22 2020-08-04 山东和正环保工程有限公司 Waste water treatment's marsh gas utilizes system
CN112546985A (en) * 2020-12-01 2021-03-26 安徽工程大学 In-situ biogas desulfurization device and method

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CN1262495C (en) * 2004-04-22 2006-07-05 吴桐 Gas making pot of biochemical biogas

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101891341A (en) * 2010-07-01 2010-11-24 江南大学 Anaerobic reactor with three-phase separators at upper and lower layers and method for landfill leachate treatment
CN101962253A (en) * 2010-10-22 2011-02-02 中国林业科学研究院林产化学工业研究所 Three-stage three-cycle anaerobic reactor
CN103881905A (en) * 2014-01-29 2014-06-25 中国科学院成都生物研究所 Embedded bioelectricity synthesis system and method
CN103881905B (en) * 2014-01-29 2015-10-28 中国科学院成都生物研究所 A kind of embedded bio electrosynthesis system and method
CN104326558A (en) * 2014-11-11 2015-02-04 南京大学 Device for simulating in-situ river course sediment anaerobic ammoxidation process, and use method and application thereof
CN104326558B (en) * 2014-11-11 2016-05-25 南京大学 Simulation original position river bottom mud anaerobic ammonium oxidation process device and using method and application
CN106698643A (en) * 2015-11-18 2017-05-24 中国石油化工股份有限公司 Wastewater treatment device and wastewater treatment method thereof
CN106698655A (en) * 2015-11-18 2017-05-24 中国石油化工股份有限公司 Wastewater denitrification nitrogen removal treatment device and method
CN111484201A (en) * 2020-04-22 2020-08-04 山东和正环保工程有限公司 Waste water treatment's marsh gas utilizes system
CN112546985A (en) * 2020-12-01 2021-03-26 安徽工程大学 In-situ biogas desulfurization device and method

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