CN201168561Y - Digester biogas desulfurization device in sewage treatment plant - Google Patents
Digester biogas desulfurization device in sewage treatment plant Download PDFInfo
- Publication number
- CN201168561Y CN201168561Y CNU2008200795598U CN200820079559U CN201168561Y CN 201168561 Y CN201168561 Y CN 201168561Y CN U2008200795598 U CNU2008200795598 U CN U2008200795598U CN 200820079559 U CN200820079559 U CN 200820079559U CN 201168561 Y CN201168561 Y CN 201168561Y
- Authority
- CN
- China
- Prior art keywords
- tank
- pool
- lye
- desulfurization
- air flotation
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 238000006477 desulfuration reaction Methods 0.000 title claims abstract description 47
- 230000023556 desulfurization Effects 0.000 title claims abstract description 47
- 239000010865 sewage Substances 0.000 title claims abstract description 13
- 238000005188 flotation Methods 0.000 claims abstract description 25
- 230000003647 oxidation Effects 0.000 claims abstract description 23
- 238000007254 oxidation reaction Methods 0.000 claims abstract description 23
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims abstract description 17
- 229910052717 sulfur Inorganic materials 0.000 claims abstract description 17
- 239000011593 sulfur Substances 0.000 claims abstract description 17
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 16
- 238000006243 chemical reaction Methods 0.000 claims abstract description 13
- 230000008929 regeneration Effects 0.000 claims abstract description 13
- 238000011069 regeneration method Methods 0.000 claims abstract description 13
- 238000000926 separation method Methods 0.000 claims abstract description 9
- 238000005273 aeration Methods 0.000 claims abstract description 4
- 239000003814 drug Substances 0.000 claims abstract description 4
- 238000012856 packing Methods 0.000 claims description 4
- 230000018044 dehydration Effects 0.000 claims description 3
- 238000006297 dehydration reaction Methods 0.000 claims description 3
- 230000000694 effects Effects 0.000 abstract description 7
- 239000003513 alkali Substances 0.000 abstract description 2
- 230000029087 digestion Effects 0.000 abstract 1
- 239000000945 filler Substances 0.000 abstract 1
- 239000007788 liquid Substances 0.000 description 8
- 239000010802 sludge Substances 0.000 description 8
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 description 5
- 239000006260 foam Substances 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 239000007789 gas Substances 0.000 description 4
- 229910000037 hydrogen sulfide Inorganic materials 0.000 description 4
- 238000010521 absorption reaction Methods 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 2
- 238000004064 recycling Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 description 1
- 238000006555 catalytic reaction Methods 0.000 description 1
- 239000003518 caustics Substances 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 230000003203 everyday effect Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 238000006479 redox reaction Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Images
Classifications
-
- 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
- Y02W10/20—Sludge processing
Landscapes
- Gas Separation By Absorption (AREA)
Abstract
本实用新型公开了一种污水处理厂消化池沼气脱硫装置，设有脱硫塔，脱硫塔内填有格栅规整填料，上部喷头与循环泵的回水管连接，下部与水封器连接，顶部设有出气管与沼气储气柜连通；另外设有分离硫和碱液再生系统，该系统由反应池、氧化池、气浮池和碱液池组成；在氧化池底部设有与鼓风机连接的曝气头；在气浮池里设有气浮器；在碱液池里设有药、水、热补给管；碱液池底部与循环泵的进水口连通；在氧化池、气浮池的上口部设有溢流槽；该溢流槽与储泥池连通，储泥池与脱水机连通。脱硫塔和分离硫和碱液再生系统两者组成一组，至少设为一组。本实用新型适用于污水处理中生产的沼气脱硫，结构合理，运行操作简单，脱硫效果好。
The utility model discloses a biogas desulfurization device for a digestion pond of a sewage treatment plant, which is provided with a desulfurization tower, the desulfurization tower is filled with grid regular fillers, the upper nozzle is connected with the return pipe of the circulation pump, the lower part is connected with the water sealer, and the top is provided with There is a gas outlet pipe connected to the biogas storage tank; in addition, there is a sulfur separation and lye regeneration system, which is composed of a reaction pool, an oxidation pool, an air flotation pool and an lye pool; at the bottom of the oxidation pool, there is an aeration tank connected to a blower. There is an air flotation device in the air flotation pool; there are medicine, water, and heat supply pipes in the lye pool; the bottom of the lye pool is connected to the water inlet of the circulating pump; There is an overflow tank; the overflow tank is connected with the mud storage tank, and the mud storage tank is connected with the dehydrator. The desulfurization tower, the separation of sulfur and the alkali liquor regeneration system form a group, at least as one group. The utility model is suitable for the desulfurization of biogas produced in sewage treatment, and has reasonable structure, simple operation and good desulfurization effect.
Description
技术领域 technical field
本实用新型属于一种污水处理的辅助装置，具体的是用于污水处理厂污泥消化产生的沼气脱硫的装置。The utility model belongs to an auxiliary device for sewage treatment, in particular to a device for desulphurization of biogas produced by digesting sludge in a sewage treatment plant.
背景技术 Background technique
大型污水处理厂一般都设有污泥消化池来处理其每天产生的大量的污泥，而消化池正常运行过程中在耗能的同时又产生大量的沼气能源，有效的利用这一能源可降低污水处理厂的成本，但是由于沼气中含有的高浓度H2S溶于水汽中产生的氢硫酸将对输气管道、贮气柜和用气设备造成严重腐蚀，因此，沼气无论是用于发电还是烧锅炉，之前都要进行脱硫。目前污水处理厂设计的脱硫装置一般分为干式脱硫和湿式脱硫两种。在干式脱硫中使用干式脱硫塔，塔内装填多层脱硫剂，但是使用时往往脱硫剂更换频繁，但脱硫效果仍然较差。湿式脱硫采用的脱硫装置为湿式脱硫塔，由于工艺、设备、药剂投加量等诸多原因，往往不能够稳定运行，脱硫效率也很低。经过对现有脱硫系统的分析，发现存在以下问题：1、干式脱硫不适合污水处理厂消化池沼气中的高浓度H2S的去除。2、湿式脱硫的脱硫效率不高，消耗的脱硫液多，且难以稳定运行。3、没有回收利用脱除的硫单质，造成资源浪费Large-scale sewage treatment plants generally have sludge digesters to deal with the large amount of sludge they produce every day. During the normal operation of the digesters, they consume energy and generate a large amount of biogas energy. Effective use of this energy can reduce The cost of sewage treatment plants, but because the high concentration of H 2 S contained in biogas dissolved in water vapor will produce hydrogen sulfuric acid that will cause serious corrosion to gas pipelines, gas storage cabinets and gas equipment. Therefore, whether biogas is used for power generation Still burning boilers, desulfurization must be carried out before. At present, desulfurization devices designed in sewage treatment plants are generally divided into two types: dry desulfurization and wet desulfurization. In dry desulfurization, a dry desulfurization tower is used, and the tower is filled with multiple layers of desulfurization agents. However, the desulfurization agents are often replaced frequently during use, but the desulfurization effect is still poor. The desulfurization device used in wet desulfurization is a wet desulfurization tower. Due to many reasons such as process, equipment, and dosage of chemicals, it often cannot operate stably, and the desulfurization efficiency is also very low. After analyzing the existing desulfurization system, it is found that there are the following problems: 1. Dry desulfurization is not suitable for the removal of high-concentration H 2 S in the digester biogas of sewage treatment plants. 2. The desulfurization efficiency of wet desulfurization is not high, consumes a lot of desulfurization liquid, and it is difficult to operate stably. 3. There is no recycling of the removed sulfur element, resulting in waste of resources
实用新型内容Utility model content
本实用新型的目的是为了解决上述技术问题，提出一种污水处理厂消化池沼气脱硫装置。该装置结构完善，操作简便，脱硫效果好。The purpose of this utility model is to solve the above-mentioned technical problems and propose a biogas desulfurization device for a digester of a sewage treatment plant. The device has perfect structure, easy operation and good desulfurization effect.
本实用新型的目的是通过以下技术方案来实现的：污水处理厂消化池沼气脱硫装置，设有脱硫塔，其特征在于：所述脱硫塔内填有格栅规整填料，上部喷头与循环泵的回水管连接，下部与水封器连接，顶部设有出气管与沼气储气柜连通；另外设有分离硫和碱液再生系统，该系统由反应池、氧化池、气浮池和碱液池组成，反应池与水封器上部连通，反应池底部与氧化池底部相通，氧化池与气浮池上部相通，气浮池和碱液池下部相通；在氧化池底部设有与鼓风机连接的曝气头；在气浮池里设有气浮器；在碱液池里设有药、水、热补给管；碱液池底部与循环泵的进水口连通；在氧化池、气浮池的上口部设有溢流槽；该溢流槽与储泥池连通，储泥池与脱水机连通。所述脱硫塔和分离硫和碱液再生系统两者组成一组，至少设为一组。The purpose of this utility model is achieved through the following technical solutions: the biogas desulfurization device of the digester of the sewage treatment plant is equipped with a desulfurization tower, and it is characterized in that: the desulfurization tower is filled with grid regular packing, the upper nozzle and the circulating pump The return pipe is connected, the lower part is connected with the water sealer, and the top is provided with an outlet pipe connected with the biogas storage tank; in addition, there is a separation sulfur and lye regeneration system, which consists of a reaction pool, an oxidation pool, an air flotation pool and an lye pool , the reaction tank is connected to the upper part of the water sealer, the bottom of the reaction tank is connected to the bottom of the oxidation tank, the oxidation tank is connected to the upper part of the air flotation tank, and the air flotation tank is connected to the lower part of the lye tank; the bottom of the oxidation tank is provided with an aeration head connected to the blower; There is an air flotation device in the air flotation tank; there are medicine, water, and heat supply pipes in the lye pool; Launder; the overflow tank communicates with the mud storage tank, and the mud storage tank communicates with the dehydrator. The desulfurization tower and the sulfur separation and caustic regeneration system form a group, at least as one group.
具体实施过程如下：消化池产生的低压沼气，从底部进入脱硫塔，碱液由脱硫塔顶喷淋而下，气液两相采用逆流混合，碱液与沼气中的H2S在催化剂的作用下完成化学吸收反应。经过脱硫塔净化的沼气自脱硫塔上部管路送往气柜。吸收了硫化氢的富液从吸收塔底排出，经过水封器靠重力流入碱液再生系统。再生系统由反应池、氧化池、气浮池和碱液池组成。在催化作用下，硫化氢与富液在反应池内进一步完成反应后流入氧化池。鼓风机将空气鼓入氧化池，富液中的硫化物在氧化池内发生氧化还原反应，析出硫，富液变为贫液。部分硫以泡沫的形式溢出氧化池。再生后的贫液由池底进入气浮池，在气浮作用下，悬浊态的硫以泡沫形式进一步得到分离。分离硫泡沫后的贫液进入碱液池，经循环泵供给脱硫塔。吸收了硫化氢的富液从脱塔底排出，再次进入再生系统，循环利用。硫泡沫经过收集进入储泥池，再经污泥泵送入脱水机脱水。The specific implementation process is as follows: the low-pressure biogas produced by the digester enters the desulfurization tower from the bottom, and the lye is sprayed down from the top of the desulfurization tower . complete the chemical absorption reaction. The biogas purified by the desulfurization tower is sent to the gas cabinet from the upper pipeline of the desulfurization tower. The rich liquid that has absorbed hydrogen sulfide is discharged from the bottom of the absorption tower, and flows into the alkali liquor regeneration system by gravity through the water sealer. The regeneration system consists of reaction pool, oxidation pool, air flotation pool and lye pool. Under the action of catalysis, hydrogen sulfide and rich liquid flow into the oxidation pool after further completing the reaction in the reaction pool. The blower blows the air into the oxidation tank, and the sulfide in the rich solution undergoes oxidation-reduction reaction in the oxidation tank, and sulfur is precipitated, and the rich solution becomes a lean solution. Part of the sulfur overflows the oxidation pond in the form of foam. The regenerated lean liquid enters the air flotation tank from the bottom of the tank, and under the action of air flotation, the suspended sulfur is further separated in the form of foam. The lean liquid after separation of sulfur foam enters the lye pool, and is supplied to the desulfurization tower through a circulation pump. The rich liquid that has absorbed hydrogen sulfide is discharged from the bottom of the stripping tower, and enters the regeneration system again for recycling. The sulfur foam is collected into the sludge storage tank, and then sent to the dehydrator for dehydration through the sludge pump.
本实用新型脱硫塔针对消化池沼气压力低的特点，可以放大塔的直径，并选用格栅规整填料，强化了气液接触效果，而且压力损失小；碱液再生工艺采用一体化池形式，结构紧凑；采用氧化池和气浮分离池分开设置的方法，强化了氧化和气浮效果；硫泡沫经过收集进入储泥池，再经污泥泵送入脱水机脱水，简化了硫泥的处理流程。压降损失低、硫化氢去除率高、脱硫液再生效果好、脱除后硫单质可以回收利用的优点。Aiming at the characteristics of low biogas pressure in the digester, the desulfurization tower of the utility model can enlarge the diameter of the tower, and adopt regular grid packing to strengthen the gas-liquid contact effect, and the pressure loss is small; the lye regeneration process adopts the form of an integrated pool, the structure It is compact; the oxidation tank and the air flotation separation tank are set separately, which strengthens the oxidation and air flotation effects; the sulfur foam is collected into the sludge storage tank, and then sent to the dehydrator for dehydration through the sludge pump, which simplifies the treatment process of sulfur sludge. It has the advantages of low pressure drop loss, high hydrogen sulfide removal rate, good desulfurization liquid regeneration effect, and the sulfur element after removal can be recycled.
附图说明 Description of drawings
图1是本实用新型的结构示意图。Fig. 1 is the structural representation of the utility model.
具体实施方式 Detailed ways
下面结合附图和实施例对本实用新型作进一步的说明：实施例1：污水处理厂消化池沼气脱硫装置，设有脱硫塔1，其特征在于：所述脱硫塔内填有格栅规整填料，上部喷头与循环泵6的回水管6.1连接，下部与水封器2连接，顶部设有出气管与沼气储气柜连通；另外设有分离硫和碱液再生系统，该系统由反应池3、氧化池4、气浮池8和碱液池5组成，反应池与水封器上部连通，反应池底部与氧化池底部相通，氧化池与气浮池上部相通，气浮池和碱液池下部相通；在氧化池底部设有与鼓风机4.1连接的曝气头4.2；在气浮池里设有气浮器8.1；在碱液池里设有药、水、热补给管5.1；碱液池底部与循环泵的进水口连通；在氧化池、气浮池的上口部设有溢流口4.3，该溢流槽与储泥池7连通；储泥池与脱水机9连通。所述脱硫塔和分离硫和碱液再生系统两者组成一组，本实施例设有一组。Below in conjunction with accompanying drawing and embodiment, the utility model is further described: embodiment 1: sewage treatment plant digester biogas desulfurization device, is provided with
本实施例经试用，效果非常好，沼气脱硫净化程度大提高。This embodiment has been tested, and the effect is very good, and the purification degree of biogas desulfurization is greatly improved.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200795598U CN201168561Y (en) | 2008-03-25 | 2008-03-25 | Digester biogas desulfurization device in sewage treatment plant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200795598U CN201168561Y (en) | 2008-03-25 | 2008-03-25 | Digester biogas desulfurization device in sewage treatment plant |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201168561Y true CN201168561Y (en) | 2008-12-24 |
Family
ID=40207614
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200795598U Expired - Lifetime CN201168561Y (en) | 2008-03-25 | 2008-03-25 | Digester biogas desulfurization device in sewage treatment plant |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201168561Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101601962B (en) * | 2009-07-03 | 2011-12-28 | 北京帝力伟业科技开发有限公司 | Exhaust gas treatment system and method |
| CN101597529B (en) * | 2009-07-31 | 2012-09-05 | 李旭源 | Methane bio-desulfurization device |
| CN103031172A (en) * | 2013-01-06 | 2013-04-10 | 浙江大学 | Layered biological-chemical combined biogas desulfurizing device |
| CN102068875B (en) * | 2009-11-19 | 2013-05-01 | 中国石油化工股份有限公司 | Oil gas absorption method |
-
2008
- 2008-03-25 CN CNU2008200795598U patent/CN201168561Y/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101601962B (en) * | 2009-07-03 | 2011-12-28 | 北京帝力伟业科技开发有限公司 | Exhaust gas treatment system and method |
| CN101597529B (en) * | 2009-07-31 | 2012-09-05 | 李旭源 | Methane bio-desulfurization device |
| CN102068875B (en) * | 2009-11-19 | 2013-05-01 | 中国石油化工股份有限公司 | Oil gas absorption method |
| CN103031172A (en) * | 2013-01-06 | 2013-04-10 | 浙江大学 | Layered biological-chemical combined biogas desulfurizing device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105727720A (en) | Spiral bubble flue gas cleaning device | |
| CN201168561Y (en) | Digester biogas desulfurization device in sewage treatment plant | |
| CN101597529A (en) | Methane bio-desulfurization device | |
| CN204224559U (en) | A kind of sledge-borne type microbial desulfurization and sulfur recovery facility | |
| CN103031172B (en) | Layered biological-chemical combined biogas desulfurizing device | |
| CN102139955B (en) | Multistage recirculation reactor for anaerobic sludge | |
| CN102512937A (en) | Method for recycling hydrogen sulfide waste gas | |
| CN204111709U (en) | Methane bio-desulfurization system | |
| CN207986803U (en) | A kind of anaerobic gas retracting device | |
| CN105817130A (en) | Device for efficient treatment of exhaust gas hydrogen sulfide | |
| CN202070285U (en) | Device for removing sulfur dioxides in sulphuric acid industrial tail gas and recovering sulphuric acid | |
| CN201930698U (en) | Absorption liquid distributor of desulfurizing tower | |
| CN1689995A (en) | Digestion tank desulfurization method | |
| CN207468391U (en) | A kind of system for spent lye processing | |
| CN202265523U (en) | Production system for coking crude phenol | |
| CN206396137U (en) | Separated sewage gas bio-desulfurization device | |
| CN201889156U (en) | Combined alkaline washing tower | |
| CN102249406B (en) | Method and deoxidization reactor for producing nitrogen by utilizing organic wastewater | |
| CN207002657U (en) | A kind of biogas production wet desulphurization elemental sulfur filters equipment integrating | |
| CN203021521U (en) | Layered biological-chemical combined biogas desulfurization device | |
| CN205821268U (en) | A kind of intensive biomass pyrogenation gasification gas cleaning device | |
| CN205586773U (en) | Energy -saving desulfurization dust shaker | |
| CN207391364U (en) | Anaerobic methane gas-liquid separation purifier | |
| CN208545230U (en) | A kind of oilfield sewage desulfurization process device | |
| CN207452045U (en) | Natural gas purification integrated tank |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20081224 |
|
| CX01 | Expiry of patent term |