CN101234280B - Absorption-biological treatment method for malodorous gas - Google Patents
Absorption-biological treatment method for malodorous gas Download PDFInfo
- Publication number
- CN101234280B CN101234280B CN200710031286XA CN200710031286A CN101234280B CN 101234280 B CN101234280 B CN 101234280B CN 200710031286X A CN200710031286X A CN 200710031286XA CN 200710031286 A CN200710031286 A CN 200710031286A CN 101234280 B CN101234280 B CN 101234280B
- Authority
- CN
- China
- Prior art keywords
- biological
- absorption
- malodorous
- waste gas
- tower
- 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 - Fee Related
Links
- 238000011282 treatment Methods 0.000 title claims abstract description 36
- 238000000034 method Methods 0.000 title claims abstract description 22
- 239000007789 gas Substances 0.000 claims abstract description 40
- 239000002912 waste gas Substances 0.000 claims abstract description 27
- 238000000746 purification Methods 0.000 claims abstract description 26
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims abstract description 25
- 239000007921 spray Substances 0.000 claims abstract description 13
- 229910021529 ammonia Inorganic materials 0.000 claims abstract description 11
- 239000003344 environmental pollutant Substances 0.000 claims abstract description 11
- 231100000719 pollutant Toxicity 0.000 claims abstract description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 11
- 238000010521 absorption reaction Methods 0.000 claims abstract description 10
- 150000001412 amines Chemical class 0.000 claims abstract description 10
- 239000000945 filler Substances 0.000 claims abstract description 10
- 230000000694 effects Effects 0.000 claims abstract description 5
- 239000002351 wastewater Substances 0.000 claims abstract description 4
- 150000001875 compounds Chemical class 0.000 claims abstract description 3
- 230000009965 odorless effect Effects 0.000 claims abstract description 3
- 239000007788 liquid Substances 0.000 claims description 23
- 238000009826 distribution Methods 0.000 claims description 10
- 230000000813 microbial effect Effects 0.000 claims description 7
- 239000002253 acid Substances 0.000 claims description 4
- 238000001816 cooling Methods 0.000 claims description 4
- 230000004071 biological effect Effects 0.000 claims description 3
- 238000003860 storage Methods 0.000 claims description 3
- 238000005406 washing Methods 0.000 claims description 3
- 238000005273 aeration Methods 0.000 claims description 2
- 238000004064 recycling Methods 0.000 claims description 2
- 238000009736 wetting Methods 0.000 claims description 2
- 235000019645 odor Nutrition 0.000 abstract description 19
- 238000004332 deodorization Methods 0.000 abstract description 16
- WQOXQRCZOLPYPM-UHFFFAOYSA-N dimethyl disulfide Chemical compound CSSC WQOXQRCZOLPYPM-UHFFFAOYSA-N 0.000 abstract description 14
- RWSOTUBLDIXVET-UHFFFAOYSA-N Dihydrogen sulfide Chemical compound S RWSOTUBLDIXVET-UHFFFAOYSA-N 0.000 abstract description 9
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 abstract description 6
- WGQKYBSKWIADBV-UHFFFAOYSA-N benzylamine Chemical compound NCC1=CC=CC=C1 WGQKYBSKWIADBV-UHFFFAOYSA-N 0.000 abstract description 6
- JJWKPURADFRFRB-UHFFFAOYSA-N carbonyl sulfide Chemical compound O=C=S JJWKPURADFRFRB-UHFFFAOYSA-N 0.000 abstract description 6
- 229910000037 hydrogen sulfide Inorganic materials 0.000 abstract description 6
- QMMFVYPAHWMCMS-UHFFFAOYSA-N Dimethyl sulfide Chemical compound CSC QMMFVYPAHWMCMS-UHFFFAOYSA-N 0.000 abstract description 5
- 239000012855 volatile organic compound Substances 0.000 abstract description 4
- QGJOPFRUJISHPQ-NJFSPNSNSA-N carbon disulfide-14c Chemical compound S=[14C]=S QGJOPFRUJISHPQ-NJFSPNSNSA-N 0.000 abstract description 3
- 231100000357 carcinogen Toxicity 0.000 abstract description 2
- 239000003183 carcinogenic agent Substances 0.000 abstract description 2
- 230000000630 rising effect Effects 0.000 abstract description 2
- 231100000331 toxic Toxicity 0.000 abstract description 2
- 230000002588 toxic effect Effects 0.000 abstract description 2
- 125000000118 dimethyl group Chemical group [H]C([H])([H])* 0.000 abstract 1
- GETQZCLCWQTVFV-UHFFFAOYSA-N trimethylamine Chemical compound CN(C)C GETQZCLCWQTVFV-UHFFFAOYSA-N 0.000 description 18
- 238000005516 engineering process Methods 0.000 description 11
- DNJIEGIFACGWOD-UHFFFAOYSA-N ethanethiol Chemical compound CCS DNJIEGIFACGWOD-UHFFFAOYSA-N 0.000 description 8
- 239000010865 sewage Substances 0.000 description 8
- 239000000126 substance Substances 0.000 description 8
- 238000011161 development Methods 0.000 description 5
- 238000012856 packing Methods 0.000 description 5
- 238000012545 processing Methods 0.000 description 5
- YWHLKYXPLRWGSE-UHFFFAOYSA-N Dimethyl trisulfide Chemical compound CSSSC YWHLKYXPLRWGSE-UHFFFAOYSA-N 0.000 description 4
- 239000012530 fluid Substances 0.000 description 4
- 238000011160 research Methods 0.000 description 4
- 229910052717 sulfur Inorganic materials 0.000 description 4
- QGJOPFRUJISHPQ-UHFFFAOYSA-N Carbon disulfide Chemical compound S=C=S QGJOPFRUJISHPQ-UHFFFAOYSA-N 0.000 description 3
- 241000196324 Embryophyta Species 0.000 description 3
- 238000010170 biological method Methods 0.000 description 3
- 230000006378 damage Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000010815 organic waste Substances 0.000 description 3
- 239000012071 phase Substances 0.000 description 3
- 241000894006 Bacteria Species 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical group [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- 241001465754 Metazoa Species 0.000 description 2
- 230000001580 bacterial effect Effects 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 230000015556 catabolic process Effects 0.000 description 2
- 235000019504 cigarettes Nutrition 0.000 description 2
- 238000004939 coking Methods 0.000 description 2
- 238000006731 degradation reaction Methods 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 235000013305 food Nutrition 0.000 description 2
- 244000144972 livestock Species 0.000 description 2
- 235000013372 meat Nutrition 0.000 description 2
- 239000012528 membrane Substances 0.000 description 2
- 239000003595 mist Substances 0.000 description 2
- 239000010813 municipal solid waste Substances 0.000 description 2
- 239000003208 petroleum Substances 0.000 description 2
- 238000007670 refining Methods 0.000 description 2
- 230000035943 smell Effects 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 239000012209 synthetic fiber Substances 0.000 description 2
- 229920002994 synthetic fiber Polymers 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 241000251468 Actinopterygii Species 0.000 description 1
- 208000000044 Amnesia Diseases 0.000 description 1
- 206010003497 Asphyxia Diseases 0.000 description 1
- 206010022998 Irritability Diseases 0.000 description 1
- 208000026139 Memory disease Diseases 0.000 description 1
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 description 1
- 206010037423 Pulmonary oedema Diseases 0.000 description 1
- 208000013738 Sleep Initiation and Maintenance disease Diseases 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000003915 air pollution Methods 0.000 description 1
- 150000001299 aldehydes Chemical class 0.000 description 1
- 208000022531 anorexia Diseases 0.000 description 1
- 238000002306 biochemical method Methods 0.000 description 1
- 238000006065 biodegradation reaction Methods 0.000 description 1
- 239000002639 bone cement Substances 0.000 description 1
- 238000009395 breeding Methods 0.000 description 1
- 230000001488 breeding effect Effects 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 210000000748 cardiovascular system Anatomy 0.000 description 1
- 230000003197 catalytic effect Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000009841 combustion method Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 206010061428 decreased appetite Diseases 0.000 description 1
- 239000002781 deodorant agent Substances 0.000 description 1
- 230000001877 deodorizing effect Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 235000014113 dietary fatty acids Nutrition 0.000 description 1
- 230000029087 digestion Effects 0.000 description 1
- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 239000000975 dye Substances 0.000 description 1
- 230000002526 effect on cardiovascular system Effects 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 230000002124 endocrine Effects 0.000 description 1
- 210000000750 endocrine system Anatomy 0.000 description 1
- 238000003933 environmental pollution control Methods 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 229930195729 fatty acid Natural products 0.000 description 1
- 239000000194 fatty acid Substances 0.000 description 1
- 150000004665 fatty acids Chemical class 0.000 description 1
- 210000003608 fece Anatomy 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 229910052736 halogen Inorganic materials 0.000 description 1
- 150000002367 halogens Chemical class 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 150000002475 indoles Chemical class 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 239000002440 industrial waste Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 206010022437 insomnia Diseases 0.000 description 1
- 150000002576 ketones Chemical class 0.000 description 1
- 239000002655 kraft paper Substances 0.000 description 1
- 239000010985 leather Substances 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- 239000010871 livestock manure Substances 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 230000006984 memory degeneration Effects 0.000 description 1
- 208000023060 memory loss Diseases 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 210000000653 nervous system Anatomy 0.000 description 1
- 229910017604 nitric acid Inorganic materials 0.000 description 1
- 150000002828 nitro derivatives Chemical class 0.000 description 1
- 239000000618 nitrogen fertilizer Substances 0.000 description 1
- 229910000069 nitrogen hydride Inorganic materials 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 239000000575 pesticide Substances 0.000 description 1
- 150000002989 phenols Chemical class 0.000 description 1
- 239000010908 plant waste Substances 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 208000005333 pulmonary edema Diseases 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 230000029058 respiratory gaseous exchange Effects 0.000 description 1
- 239000005060 rubber Substances 0.000 description 1
- 230000008786 sensory perception of smell Effects 0.000 description 1
- 238000003307 slaughter Methods 0.000 description 1
- 239000010802 sludge Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 239000010935 stainless steel Chemical group 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 230000009897 systematic effect Effects 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 150000003568 thioethers Chemical class 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
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
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
-
- 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
Landscapes
- Treating Waste Gases (AREA)
Abstract
本发明涉及恶臭废气的吸收-生物处理方法，恶臭废气进入喷淋吸收塔，发生吸收、增湿和降温作用，然后进入生物滴滤装置，在上升过程中与附着在填料表面的生物膜接触并被生物降解为无臭的化合物，净化后的气体排出。空床停留时间为11～45s。喷淋吸收产生的废水一部分可作生物循环水、其它经生化处理后重新作为喷淋水循环使用。吸收-生物技术能高效去除有机胺类、氨气、硫化氢、硫醇类、甲基硫醚(DMS)、二甲基二硫(DMDS)、苯乙烯、挥发性有机物(VOC)、二甲基三硫、苯甲胺、二硫化碳、羰基硫等气态恶臭污染物、以及各种恶臭气味，它们大多具有毒性，部分是致癌物、脱臭效果可达99％，可实现达标排放。适应于低浓度、大气量，不同恶臭气体污染物的脱臭净化处理。The invention relates to the absorption-biological treatment method of malodorous waste gas. The malodorous waste gas enters the spray absorption tower, absorbs, humidifies and cools down, and then enters the biological dripping filter device. During the rising process, it contacts with the biofilm attached to the filler surface and It is biodegraded into odorless compounds, and the purified gas is discharged. The empty bed residence time is 11-45s. Part of the waste water generated by spray absorption can be used as biological circulating water, and the rest can be reused as spray water after biochemical treatment. Absorption-Biotechnology can efficiently remove organic amines, ammonia, hydrogen sulfide, mercaptans, methyl sulfide (DMS), dimethyl disulfide (DMDS), styrene, volatile organic compounds (VOC), dimethyl Gaseous odor pollutants such as trisulfide, benzylamine, carbon disulfide, carbonyl sulfide, and various odors, most of them are toxic, some of them are carcinogens, and the deodorization effect can reach 99%, which can achieve standard discharge. It is suitable for deodorization and purification treatment of low concentration, large volume, and different odorous gas pollutants.
Description
技术领域technical field
本发明涉及一种恶臭废气的吸收-生物处理方法。The invention relates to an absorption-biological treatment method of malodorous waste gas.
技术背景technical background
恶臭问题是居民投诉的热点，国内有关恶臭污染防治的呼声越来越高。恶臭是7种典型公害之一，危害着人们的身体健康和生活的安宁与舒适，恶臭气体不仅能带给人嗅觉的不适，长期生活于恶臭污染的环境中还会引起厌食、失眠、记忆力下降、心情烦躁等功能性疾病。恶臭对人体呼吸、消化、心血管、内心泌及神经系统都会造成影响。高浓度的恶臭还可使接触者发生肺水肿，甚至窒息死亡。由于恶臭物质的影响干扰了人们正常的生产、生活，使工作效率降低，从而导致社会经济状态恶化；在商业区由于恶臭的影响使购买力降低；旅游区则由于旅游环境被恶臭污染，地域评价受到损害，经济利益受到影响。恶臭污染还会造成该地区投资减少，使地域性经济发展受到抑制，并损害地区的整体形象。恶臭的特点是污染物质成分复杂、浓度极低。目前人们发现的环境恶臭物质已达数万种之多，单凭人的嗅觉能感知的就有4000多种。恶臭物质一般在大气中扩散，有些会随废水、废渣排入水体，不仅使水发生恶臭味，还会使鱼类等水生生物发出恶臭而不能食用。散发恶臭气味的化学物质主要有硫化氢、硫醇类、硫醚类、氨、胺类、吲哚类、硝基化合物、烃类、醛类、脂肪酸类、酚类、酮类、酯类及有机卤系衍生物等。大气中的恶臭污染物已经给当地居民的身体健康和生态环境造成了严重的危害，臭气扰民事件时有发生。这表明工业恶臭废气的净化处理已经成为我国大气污染控制中一个急待解决的问题。如果这一问题得不到很好的解决，势必会影响我国国民经济的正常发展。The stench problem is a hot spot for residents' complaints, and domestic calls for the prevention and control of stench pollution are getting louder and louder. Stench is one of the seven typical public hazards, endangering people's health and the peace and comfort of life. Stench gas can not only bring people olfactory discomfort, but also cause anorexia, insomnia, and memory loss if they live in a foul-smelling environment for a long time. , irritability and other functional diseases. The stench affects the human respiration, digestion, cardiovascular, endocrine and nervous systems. High concentrations of stench can also cause pulmonary edema and even death by suffocation. Due to the impact of odorous substances, people's normal production and life are disturbed, and work efficiency is reduced, which leads to the deterioration of social and economic conditions; in commercial areas, the purchasing power is reduced due to the impact of odor; in tourist areas, due to the pollution of the tourism environment by odor, the regional evaluation is affected. Damage, economic interests are affected. Odor pollution will also reduce investment in the area, inhibit regional economic development, and damage the overall image of the area. Odor is characterized by complex components and extremely low concentrations of pollutants. At present, there are tens of thousands of environmental odorous substances discovered by people, and there are more than 4,000 kinds that can be perceived by people's sense of smell. Malodorous substances generally diffuse in the atmosphere, and some will be discharged into water bodies with waste water and waste residues, which not only cause foul odors in water, but also cause foul smells in fish and other aquatic organisms, making them inedible. The chemical substances that emit foul smell mainly include hydrogen sulfide, mercaptans, sulfides, ammonia, amines, indoles, nitro compounds, hydrocarbons, aldehydes, fatty acids, phenols, ketones, esters and Organic halogen derivatives, etc. Odor pollutants in the atmosphere have caused serious harm to the health of local residents and the ecological environment, and incidents of odor nuisance to residents have occurred from time to time. This shows that the purification treatment of industrial malodorous waste gas has become an urgent problem to be solved in my country's air pollution control. If this problem cannot be solved well, it will inevitably affect the normal development of our national economy.
恶臭处理技术有燃烧法、洗净法、吸收法、脱臭剂法、生物脱臭法等。物理和化学法处理存在投资大、操作复杂、运行成本高、易产生二次污染等问题。生物脱臭法因其投资少、运行费用低、性能可靠、易于管理、处理效果好、二次污染小等特点而成为近年来脱臭的主要方法。生物法脱臭技术是目前世界上工业废气净化的前沿热点技术。废气的微生物处理于1957年在美国获得专利，但到1970年代才开始引起重视，直到1980年代才在德国、日本、荷兰等国家有相当数量工业规模的各类生物净化装置投入运行。在欧美、日本等国家，该技术被越来越广泛地应用到实际工程中，日、德、荷、美等国家的设备与装置开发，呈商品化态势，并且应用效果良好，对混合性有机废气的去除率，一般在95％以上。微生物过滤床已成功地用于化工厂、食品厂、污水处理厂、污水泵站等方面的废气净化和脱臭。随着生物治理技术在环境污染治理中的不断发展、成熟及应用，利用生物治理技术消除恶臭污染，近20多年来也得到了广泛的研究，其显著的除臭效果已引起愈来愈多的关注。自80年代以来，国外已有各类微生物脱臭的装置和设备运用于冶金、石油、化工、畜牧业和污水处理厂，并取得了较好的效果。国内在这方面起步较晚，直到九十年代才开始对生化法净化低浓度有机废气进行实验和系统研究。昆明理工大学的孙珮石和同济大学邵立明等进行了生物法净化有机废气、恶臭气体的研究。郑士民等利用生物吸收塔，对石油催化干气和沼气进行脱硫，硫化氢的生物净化效率分别为71.45％和46.91％。马红采用固定床生物反应器处理含NH3臭气，气相NH3去除率大于92％。姜安玺等用生物滴滤塔中进行脱除乙硫醇研究。郭静等利用污水处理厂活性污泥挂膜的复合式生物膜反应器进行脱臭。邸进申、马艳玲、任爱玲等也进行了生物法除臭的实验室研究。孙珮石教授领导的课题组已进行了生物法净化低浓度有机废气在福建、昆明及河北的某些厂家的工业推广应用，国内亦有生物法净化污水厂废气、卷烟厂废气、垃圾站臭气、炼油厂恶臭废气和制药厂恶臭废气的工程应用报道。虽然生物脱臭法的历史还较短，部分工作仍在实验阶段，但由于其具有传统方法不可比拟的优越性及安全性，发展潜力较大，因而具有相当广阔的应用前景。Odor treatment technologies include combustion method, washing method, absorption method, deodorant method, biological deodorization method, etc. Physical and chemical treatment has problems such as large investment, complicated operation, high operating cost, and easy to produce secondary pollution. The biological deodorization method has become the main method of deodorization in recent years because of its characteristics of low investment, low operating cost, reliable performance, easy management, good treatment effect, and small secondary pollution. Biological deodorization technology is a cutting-edge hot technology for industrial waste gas purification in the world. The microbial treatment of exhaust gas was patented in the United States in 1957, but it was not paid attention until the 1970s. It was not until the 1980s that a considerable number of industrial-scale biological purification devices were put into operation in Germany, Japan, the Netherlands and other countries. In Europe, America, Japan and other countries, this technology has been more and more widely applied to practical projects. The development of equipment and devices in Japan, Germany, the Netherlands, the United States and other countries is in a commercialization trend, and the application effect is good. The removal rate of waste gas is generally above 95%. Microbial filter beds have been successfully used for exhaust gas purification and deodorization in chemical plants, food plants, sewage treatment plants, sewage pumping stations, etc. With the continuous development, maturity and application of biological treatment technology in environmental pollution control, the use of biological treatment technology to eliminate odor pollution has also been extensively studied in the past 20 years, and its remarkable deodorization effect has attracted more and more attention. focus on. Since the 1980s, various types of microbial deodorization devices and equipment have been used in metallurgy, petroleum, chemical industry, animal husbandry and sewage treatment plants abroad, and have achieved good results. China started relatively late in this area, and it was not until the 1990s that experiments and systematic research on the purification of low-concentration organic waste gas by biochemical methods began. Sun Peishi from Kunming University of Science and Technology and Shao Liming from Tongji University conducted research on the purification of organic waste gas and malodorous gas by biological methods. Zheng Shimin et al. used biological absorption towers to desulfurize petroleum catalytic dry gas and biogas, and the biological purification efficiencies of hydrogen sulfide were 71.45% and 46.91%, respectively. Mahong uses a fixed-bed bioreactor to treat NH3- containing odor, and the gas-phase NH3 removal rate is greater than 92%. Jiang Anxi and others used the biological trickling filter tower to study the removal of ethanethiol. Guo Jing et al. used a composite biofilm reactor with activated sludge film in a sewage treatment plant for deodorization. Di Jinshen, Ma Yanling, Ren Ailing, etc. have also carried out laboratory research on biological deodorization. The research group led by Professor Sun Peishi has carried out the industrial promotion and application of biological methods to purify low-concentration organic waste gases in some factories in Fujian, Kunming and Hebei. There are also domestic biological methods to purify sewage plant waste gas, cigarette factory waste gas, garbage station odor, Engineering application report of malodorous exhaust gas from refinery and pharmaceutical plant. Although the history of biological deodorization is relatively short, and part of the work is still in the experimental stage, it has a very broad application prospect because of its incomparable superiority and safety and great development potential compared with traditional methods.
发明内容Contents of the invention
本发明的目的是提供恶臭废气的吸收-生物处理技术，吸收-生物脱臭技术能高效去除有机胺类、氨气、硫化氢、硫醇类、甲基硫醚(DMS)、二甲基二硫(DMDS)、苯乙烯、挥发性有机物(VOC)、二甲基三硫、苯甲胺、二硫化碳、羰基硫等气态恶臭污染物、以及各种恶臭味、它们大多具有毒性，部分是致癌物、脱臭效果可达99％以上。空床停留时间为11～45s。The purpose of the present invention is to provide the absorption-biological treatment technology of malodorous waste gas, which can efficiently remove organic amines, ammonia gas, hydrogen sulfide, mercaptans, methyl sulfide (DMS), dimethyl disulfide (DMDS), styrene, volatile organic compounds (VOC), dimethyl trisulfide, benzylamine, carbon disulfide, carbonyl sulfide and other gaseous odor pollutants, as well as various odors, most of them are toxic, and some of them are carcinogens , The deodorizing effect can reach more than 99%. The empty bed residence time is 11-45s.
本发明的目的可以通过以下技术方案来实现：The purpose of the present invention can be achieved through the following technical solutions:
设计、使用一种恶臭废气的吸收-生物处理工艺，废气首先进入到喷淋吸收塔，将难于生化降解的氨、有机胺类酸洗除去大部分，减少生物滤塔的负荷。它将起到酸吸收胺、氨和降温的作用，以使进入生物滤塔的温度控制在50℃以下。如污染物中无氨、有机胺类，则用水喷淋，则可起润湿、增湿或降温作用，以利用后续生物降解作用，循环液由循环水泵打到塔顶向下喷淋到生物膜填料上，并从塔底流出进入循环液储槽循环使用。然后废气从塔底进入生物滴滤装置，在上升过程中与附着在载体(填料)表面的润湿的生物膜接触被生物降解为无臭的化合物，生物滴滤装置里的净化恶臭废气的专用微生物菌群，该微生物菌群生物活性温度在20～55℃。净化后的气体从塔顶排出。喷淋吸收产生的废水一部分可作生物循环水、其它经生化处理后重新作为喷淋水循环使用。Design and use a malodorous waste gas absorption-biological treatment process. The waste gas first enters the spray absorption tower, and most of the ammonia and organic amines that are difficult to biodegrade are removed by acid washing, reducing the load of the biological filter tower. It will play the role of acid absorption of amine, ammonia and cooling, so that the temperature entering the biological filter tower can be controlled below 50°C. If there is no ammonia or organic amines in the pollutants, spraying with water can play the role of wetting, humidifying or cooling to take advantage of the subsequent biodegradation. The circulating liquid is pumped to the top of the tower and sprayed downward to the biological Membrane filler, and flow out from the bottom of the tower into the circulating liquid storage tank for recycling. Then the exhaust gas enters the bio-trickling filter device from the bottom of the tower, and is biodegraded into odorless compounds by contacting the wetted biofilm attached to the surface of the carrier (filler) during the rising process. Microbial flora, the biological activity temperature of the microbial flora is 20-55°C. The purified gas is discharged from the top of the tower. Part of the waste water generated by spray absorption can be used as biological circulating water, and the rest can be reused as spray water after biochemical treatment.
本发明的目的可以通过以下技术方案来实现：The purpose of the present invention can be achieved through the following technical solutions:
设计、制作的恶臭废气的吸收-生物处理工艺的生物滴滤装置，其特征在于生物滴滤装置中所使用的梁式气体喷射型支承板与液体再分布器配套使用，(1)梁式气体喷射型支承板的自由截面率接近，甚至超过100％，为气、液两相提供不同的通道，从而避免了其间的流动干扰，即使在很高的气、液负荷下操作压降也很小，(2)气、液两相流体通量大，(3)对气、液两相流体进行了均匀分布，从而保证了高效塔填料发挥出较高的传质效率，(4)梁式结构刚性好，易于分块和安装，特别适用于大气量的废气处理。The design and manufacture of malodorous waste gas absorption-biological treatment process bio-trickling filter device is characterized in that the beam-type gas injection type support plate used in the bio-trickling filter device is used in conjunction with the liquid redistributor, (1) beam-type gas The free section ratio of the spray type support plate is close to or even exceeds 100%, providing different channels for the gas and liquid phases, thereby avoiding the flow interference between them, and the operating pressure drop is small even under high gas and liquid loads , (2) The flux of gas and liquid two-phase fluid is large, (3) The gas and liquid two-phase fluid is evenly distributed, thus ensuring high mass transfer efficiency of high-efficiency tower packing, (4) Beam structure Good rigidity, easy to block and install, especially suitable for large volume exhaust gas treatment.
生物滴滤装置所采用的槽式液体分布器，该液体分布器通常是分流槽(一级槽)、一组分布槽(二级槽)、及分布槽上液体分布元件等构成，第一级的分流槽通过槽底开孔将液体初分成若干流股，分别加入其下方的液体分布槽，再通过分布槽底(或槽壁)上的开孔或导管，以及槽壁上缘的V型堰口等将液体均匀分布于填料层上，它具有较大的操作弹性和极好的抗固体杂质的能力，还具有优良的分布性能和抗污染易清洗等使用性能，可处理大气、液流量场合。The trough-type liquid distributor used in the biological trickling filter device is usually composed of a distribution tank (first-level tank), a group of distribution tanks (second-level tank), and liquid distribution components on the distribution tank. The first-level The distributing tank divides the liquid into several streams through the openings at the bottom of the tank, which are respectively added to the liquid distribution tank below them, and then pass through the openings or conduits on the bottom (or tank wall) of the distribution tank, and the V-shaped stream on the upper edge of the tank wall. The weir and the like distribute the liquid evenly on the packing layer. It has great operating flexibility and excellent ability to resist solid impurities. It also has excellent distribution performance and performance such as anti-pollution and easy cleaning. It can handle atmospheric and liquid flow occasions. .
生物滴滤装置里的净化恶臭废气的微生物菌群，该微生物菌群生物活性温度在20～55℃。所用的填料是单独填料、混合填料。生物净化塔也可以采用长方体，钢结构或混凝土结构，填料分层填装。每个填料单元设一个气体导流孔板，使废气分布均匀。The microbial flora for purifying malodorous exhaust gas in the biological trickling filter device has a biological activity temperature of 20-55°C. The fillers used are individual fillers and mixed fillers. The biological purification tower can also adopt cuboid, steel structure or concrete structure, and the filler is filled in layers. Each packing unit is equipped with a gas guide orifice to distribute the exhaust gas evenly.
生物循环液储槽下部设置曝气管，好氧生物降解循环液的恶臭污染物。An aeration tube is arranged at the lower part of the biological circulating fluid storage tank to aerobically biodegrade the odorous pollutants of the circulating fluid.
生物滴滤装置里的除雾沫器，它是以金属丝网或合成纤维丝网作为除雾沫元件，夹固在两栅板之间而构成。The mist eliminator in the biological trickling filter device is composed of wire mesh or synthetic fiber mesh as the mist removal element, which is clamped between two grid plates.
具体实施方式Detailed ways
以下通过实例对本发明做进一步说明。所使用的填料可以为陶粒、颗粒活性炭、不锈钢环、塑料环等。The present invention will be further described by examples below. The filler used can be ceramsite, granular activated carbon, stainless steel ring, plastic ring, etc.
实施例一：吸收-生物联合处理水产饲料恶臭废气Example 1: Absorption-biological joint treatment of malodorous waste gas from aquatic feed
水产饲料在熟化、烘干工序产生的有组织排放的恶臭废气，这些恶臭废气的成分有三甲胺、氨、硫化氢、苯乙烯、二甲二硫、二甲基三硫、苯甲胺、二硫化碳、二甲硫、羰基硫等。废气温度：70～80℃。采用水产饲料臭气废气净化专用菌种对生物滴滤装置进行接种挂膜。在湛江粤华水产饲料有限公司对水产饲料恶臭废气吸收-生物法净化工程装置的长时间运行稳定性进行了154天试运行考察，其间该装置表现出了良好的运行稳定性。停留时间11.73s，在143天内氨的净化效率一般稳定在94.67～100％，144～154天可达100％，几乎未检出；三甲胺的净化效率在97.3％以上，最大可达100％，几乎未检出；二甲二硫的净化效率在99％以上，最大可达100％，几乎全部去除。生物净化装置进气气体流量Q：27090-390303/h，喷淋吸收进气温度TC：70～80℃，三甲胺、氨、二甲二硫、硫化氢平均进气浓度分别为0.1～100mg/m3，进气气体温度T：30～55气体阻力降ΔP：20-50mmH2O，单位填料层高度压降40Pa/m填料层。循环液体喷淋密度0.9m3/m2.h。循环液体pH：7.0-8.0。The malodorous waste gas produced by the aquatic feed during the curing and drying process is organized. The components of these malodorous waste gas include trimethylamine, ammonia, hydrogen sulfide, styrene, dimethyl disulfide, dimethyl trisulfide, benzylamine, and carbon disulfide. , Dimethyl sulfide, carbonyl sulfide, etc. Exhaust gas temperature: 70-80°C. The biological trickling filter device was inoculated and film-coated with special bacterial strains for purification of odor and waste gas from aquatic feed. In Zhanjiang Yuehua Aquatic Feed Co., Ltd., a 154-day test run was conducted on the long-term operation stability of the malodorous waste gas absorption-biological purification engineering device for aquatic feed, during which the device showed good operational stability. The residence time is 11.73s, and the purification efficiency of ammonia is generally stable at 94.67-100% in 143 days, and can reach 100% in 144-154 days, almost undetected; the purification efficiency of trimethylamine is above 97.3%, and the maximum can reach 100%. It is almost not detected; the purification efficiency of dimethyl disulfide is above 99%, and the maximum can reach 100%, almost completely removed. Intake gas flow rate Q of biological purification device: 27090-39030 3 /h, spray absorption inlet temperature T C : 70-80°C, average inlet concentration of trimethylamine, ammonia, dimethyl disulfide and hydrogen sulfide are 0.1- 100mg/m 3 , intake gas temperature T: 30-55, gas resistance drop ΔP: 20-50mmH 2 O, pressure drop per unit packing layer height 40Pa/m packing layer. The circulating liquid spray density is 0.9m 3 /m 2 .h. Circulating liquid pH: 7.0-8.0.
实施例二：吸收-生物技术处理含三甲胺恶臭废气Example 2: Absorption-Biotechnology Treatment of Malodorous Waste Gas Containing Trimethylamine
为了解决废气中的有机胺类物质恶臭污染问题，采用恶臭废气净化专用驯化菌种挂膜的生物滴滤塔处理三甲胺恶臭废气的实验方法，三甲胺的净化效率达99.9％以上，净化后尾气能达到国家二级排放标准。In order to solve the problem of odor pollution caused by organic amines in the exhaust gas, the experimental method of treating trimethylamine odor exhaust gas with a bio-trickling filter tower with domesticated strains of membrane-coated special domesticated bacteria for odor exhaust gas purification, the purification efficiency of trimethylamine is over 99.9%, and the exhaust gas after purification It can meet the national secondary emission standard.
实施例三：吸收-生物技术处理含H2S和NH3恶臭废气Example 3: Absorption-biotechnology treatment of malodorous waste gas containing H 2 S and NH 3
采用恶臭废气净化专用驯化菌种挂膜的生物滴滤塔对含H2S和NH3两种污染物都具有较强的降解能力，且H2S的净化比NH3的净化更容易，H2S都能达到100％的去除率；而NH3的净化效率保持在99.9％以上，可实现达标排放。The bio-trickling filter, which adopts domesticated bacteria for foul-smelling waste gas purification, has a strong degradation ability for both H 2 S and NH 3 pollutants, and the purification of H 2 S is easier than that of NH 3 . 2 S can achieve a removal rate of 100%; while the purification efficiency of NH 3 remains above 99.9%, which can achieve standard discharge.
实施例四：吸收-生物技术处理含H2S和NH3、三甲胺恶臭废气Example 4: Absorption-biotechnology treatment of malodorous waste gas containing H 2 S and NH 3 and trimethylamine
采用恶臭废气净化专用驯化菌种挂膜的生物滴滤塔对含H2S和NH3、三甲胺的三种污染物都具有较强的降解能力。H2S都能达到100％的去除率；系统对NH3和三甲胺的净化效率分别保持在99.6％和99.8％左右，停留时间为21.7s。The bio-trickling filter, which adopts domesticated bacterial strains for foul-smelling waste gas purification, has a strong degradation ability for three pollutants containing H 2 S, NH 3 and trimethylamine. The removal rate of H 2 S can reach 100%; the purification efficiency of the system for NH 3 and trimethylamine is maintained at about 99.6% and 99.8% respectively, and the residence time is 21.7s.
吸收-生物法脱臭技术的应用将会产生明显的环境效益和社会效益，其可减少废气扰民的事件发生并使有关的工业生产得以顺利进行，也有助于保护生态环境。吸收-生物法脱臭技术是在净化性能、投资成本、运行费用、可操作性、废弃物和副产品的性能等方面均优于现有技术的新型实用技术方法。可适应低浓度、大气量，不同恶臭气体物质的脱臭净化处理。吸收-生物脱臭方法可应用于水产饲料工业、饲料工业、炼油、炼焦、牛皮纸浆、炼油、炼焦、石化、煤气、粪便处理、二硫化碳的生产或加工、制药、农药、合成树脂、合成纤维、橡胶、垃圾处理、生活污水下水道、氮肥、硝酸、肉类加工、水产加工，畜产加工、皮革、骨胶、生活污水处理、肉类腐烂、屠宰牲畜、养殖、畜牧业和污水处理、造纸、食品加工、涂料、染料、烟厂等恶臭废气的治理。The application of absorption-biological deodorization technology will produce obvious environmental and social benefits, which can reduce the occurrence of waste gas nuisance incidents and enable the smooth progress of related industrial production, and also help to protect the ecological environment. Absorption-biological deodorization technology is a new practical technical method that is superior to the existing technology in terms of purification performance, investment cost, operating cost, operability, performance of waste and by-products, etc. It can adapt to the deodorization and purification treatment of low concentration, large volume, and different malodorous gas substances. The absorption-biological deodorization method can be applied to aquatic feed industry, feed industry, oil refining, coking, kraft pulp, oil refining, coking, petrochemical, gas, manure treatment, production or processing of carbon disulfide, pharmaceuticals, pesticides, synthetic resins, synthetic fibers, rubber , garbage treatment, domestic sewage sewer, nitrogen fertilizer, nitric acid, meat processing, aquatic product processing, livestock processing, leather, bone glue, domestic sewage treatment, meat rot, slaughtering livestock, breeding, animal husbandry and sewage treatment, papermaking, food processing, Treatment of foul-smelling waste gas from paint, dyes, cigarette factories, etc.
Claims (5)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200710031286XA CN101234280B (en) | 2007-11-07 | 2007-11-07 | Absorption-biological treatment method for malodorous gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200710031286XA CN101234280B (en) | 2007-11-07 | 2007-11-07 | Absorption-biological treatment method for malodorous gas |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101234280A CN101234280A (en) | 2008-08-06 |
| CN101234280B true CN101234280B (en) | 2011-07-20 |
Family
ID=39918339
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200710031286XA Expired - Fee Related CN101234280B (en) | 2007-11-07 | 2007-11-07 | Absorption-biological treatment method for malodorous gas |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101234280B (en) |
Families Citing this family (26)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101637697B (en) * | 2009-08-03 | 2012-01-11 | 庞金钊 | Biological desulfurization method of smoke |
| CN101961595A (en) * | 2010-10-08 | 2011-02-02 | 中山大学 | Desulfurization-high temperature biological deodorization method for foul smell waste gas produced by sludge treatment |
| CN102068878A (en) * | 2010-12-02 | 2011-05-25 | 广州中洲环保科技有限公司 | Method for treating odors produced by drying sewage sludge |
| CN102179160B (en) * | 2011-04-08 | 2013-01-30 | 广州市越堡水泥有限公司 | Purification method of odor waste gas produced by high-temperature dewatering of sludge |
| CN102688669A (en) * | 2012-05-28 | 2012-09-26 | 广州广一大气治理工程有限公司 | Waste gas purification plant with integration of plasma and biological method |
| GB201311594D0 (en) * | 2013-06-28 | 2013-08-14 | Johnson Matthey Plc | Water-resistant composition |
| CN103920377A (en) * | 2014-04-16 | 2014-07-16 | 浙江万里学院 | Electric-biological drip filter purification device for VOC (volatile organic compounds) waste gas |
| CN104923067A (en) * | 2015-06-06 | 2015-09-23 | 常州大学 | A CS2 exhaust gas treatment integrated device |
| CN105536460B (en) * | 2015-12-09 | 2018-04-10 | 上海市政工程设计研究总院（集团）有限公司 | A kind of eliminating malodours from gases purification method for being applied to handle complicated component foul smell |
| CN105854550A (en) * | 2016-02-23 | 2016-08-17 | 北京时代桃源环境科技有限公司 | Method and device for directly removing hydrogen sulfide from biogas by microorganisms |
| CN105817129A (en) * | 2016-05-06 | 2016-08-03 | 北京时代桃源环境科技有限公司 | Device and method for removing hydrogen sulfide in marsh gas with microorganisms |
| CN106039982B (en) * | 2016-07-11 | 2018-11-30 | 湖南屎壳郎环境科技有限公司 | A kind of the washing governing system and method for fermentation odor and combustion product gases |
| CN106237835A (en) * | 2016-08-12 | 2016-12-21 | 广州市净水有限公司 | Urban wastewater treatment firm high concentration organic odoriferous emission-control equipment and process technique |
| CN107008085A (en) * | 2017-06-01 | 2017-08-04 | 安徽吉乃尔电器科技有限公司 | A kind of incinerator for treating domestic refuse waste gas purification apparatus |
| CN107596907A (en) * | 2017-09-27 | 2018-01-19 | 厦门嘉烨兴农业科技有限公司 | A kind of waste gas treatment process based on pig raising waste thing recycle utilization |
| CN107789977A (en) * | 2017-12-13 | 2018-03-13 | 深圳易普乐环保科技有限公司 | A kind of system and method for superior microorganism processing ethyl mercaptan waste gas |
| CN108264203B (en) * | 2018-04-04 | 2023-09-26 | 浙江荣晟环保纸业股份有限公司 | System and method for treating odor of papermaking wastewater |
| CN108525510A (en) * | 2018-04-13 | 2018-09-14 | 衢州市衢江区土壤肥料技术推广站 | A kind of environment-friendly type absorption processing method of organic fertilizer production technology waste gas |
| CN108854355A (en) * | 2018-08-28 | 2018-11-23 | 湖北君集水处理有限公司 | A kind of system and method for sewage treatment plant's foul smell Collecting and dealing |
| CN109579028A (en) * | 2018-11-30 | 2019-04-05 | 自贡市现代秋收机械有限公司 | A kind of burning purifying treatment method of ground sewer toxic gas |
| CN109663436B (en) * | 2018-12-10 | 2021-01-26 | 广东南环环境生物治理工程有限公司 | System and method for biological treatment of industrial waste gas and dust |
| CN109569267A (en) * | 2018-12-20 | 2019-04-05 | 自贡佳鑫农业科技有限公司 | A kind of aerobic fermentation waste bio-treatment method |
| CN111249871A (en) * | 2020-03-11 | 2020-06-09 | 福建科宏生物工程股份有限公司 | Method for treating VOCs and malodorous gases generated in sucralose production process |
| CN111847771A (en) * | 2020-07-06 | 2020-10-30 | 浙江省环境工程有限公司 | Slaughter wastewater treatment method and system |
| CN112062434A (en) * | 2020-09-30 | 2020-12-11 | 浙江浙农生态科技有限公司 | Based on breed industry excrement innocent treatment device |
| CN114177757B (en) * | 2021-12-10 | 2023-11-17 | 中冶华天工程技术有限公司 | Municipal exhaust aerosol germ killing and malodorous gas collecting and removing device and method |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1351897A (en) * | 2000-11-14 | 2002-06-05 | 同济大学 | Removing method for foul smell gas |
| CN2558443Y (en) * | 2002-03-18 | 2003-07-02 | 冯建成 | Washing-bio-filter bed filtering united deodorizing device |
-
2007
- 2007-11-07 CN CN200710031286XA patent/CN101234280B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1351897A (en) * | 2000-11-14 | 2002-06-05 | 同济大学 | Removing method for foul smell gas |
| CN2558443Y (en) * | 2002-03-18 | 2003-07-02 | 冯建成 | Washing-bio-filter bed filtering united deodorizing device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101234280A (en) | 2008-08-06 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101234280B (en) | Absorption-biological treatment method for malodorous gas | |
| CN201692768U (en) | A chemical washing-biological combined deodorization device | |
| CN108854355A (en) | A kind of system and method for sewage treatment plant's foul smell Collecting and dealing | |
| CN103623693B (en) | A kind of Efficient biological deodorization equipment | |
| CN203764132U (en) | Integrated biological deodorizing equipment | |
| CN101708426A (en) | Biologic filtration method and device for purifying industrial organic waste gas | |
| CN101259367A (en) | A process and device for simultaneously removing the stench of multiple mixed gases | |
| Barbusiński et al. | Use of biological methods for removal of H2S from biogas in wastewater treatment plants–a review | |
| CN202169138U (en) | Device for biological treatment of high-temperature malodorous waste gases | |
| CN204841412U (en) | High -efficient biological deodorization device of integration | |
| CN104147921B (en) | A kind of apparatus and method of the activated carbon combined method processing foul gas of biofiltration | |
| CN108744947A (en) | Method for treating organic waste gas by novel membrane biological trickling filter | |
| CN104001421B (en) | A kind of employing pretreated compound bio deodorization process of bubble-free aeration and device | |
| CN201249097Y (en) | Multistage and multi-section composite deodorizing device | |
| KR100841551B1 (en) | Deodorization method and device for livestock manure wastewater fermentation and retirement | |
| CN205216574U (en) | Biofiltration purifies foul smell device | |
| CN106268291A (en) | Biological desulfurization and deodorization trickling filter device and biological desulfurization and deodorization method | |
| CN202478818U (en) | Novel biological trickling filtering tower for decomposing organic odor | |
| CN108264203A (en) | A kind of processing system and method for paper waste foul smell | |
| CN205055776U (en) | Handle integrated equipment of foul gas | |
| CN205867996U (en) | Microorganism spray column deodorizing device | |
| CN109078479A (en) | A kind of compound bio method processing sewage plant exhaust device and waste gas processing method | |
| CN208694675U (en) | Ozone Water cooperates with UV photocatalysis integral type deodorization purification system | |
| CN102091530A (en) | A method of biological filtration and deodorization | |
| CN103657397A (en) | Biological treatment method and device for waste gas produced by printing and dyeing wastewater |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110720 Termination date: 20181107 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |