粉煤灰免烧生物填料去除硫化氢效果研究
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摘要
以粉煤灰为主要原料,采用蒸汽养护法,研制了一种能有效去除硫化氢的营养生物填料;比较了该填料与基础填料和传统陶粒的挂膜速度,并考察了硫化氢的进气浓度、进气负荷和停留时间对硫化氢去除效率的影响。结果表明,营养填料可在10 d内成功挂膜。在硫化氢进气质量浓度低于460 mg/m~3,进气流量为0. 6 m~3/h的情况下,硫化氢去除效率可达90%以上;当硫化氢停留时间在28. 3～33. 4 s,进气流速为0. 55～0. 65 m~3/h时,其去除效率达99%以上。系统在运行过程中,免烧营养填料的酸缓冲能力和耐冲击性能良好。
The present paper intends to examine and trace the removal effect of the high content concentrations of hydrogen sul-fide by a biofilter filler made of fly ash. For this purpose,we have managed to make ready a novel biofilm carrier with the steam curing or treating method and the optimalized constituents of the biofilm carrier include 8% of fly ash,1. 2% of cement,and 0. 2% of lime stone,and 0. 25% of plaster,with the sodium sulphate anhydrous being of 0. 125% and 0. 2% of the biomass ash. Furthermore,in the carrier maturation process,10 mL of trace element has been aided to the nutrient solution containing respectively NH_4 Cl 0. 4 g/L; MgSO_4·7 H_2 O 0. 8 g/L; KH_2 PO_44. 0 g/L,along with 10. 0 g/L of glucose; 3. 0 g/L of tryptone and 1. 0 g/L of yeast extract. As the same time,the paper has also worked out the basic carrier of deionized water in the maturation process,whose general physico-chemical features may include pH particle size,specific surface area,water absorption rate,and pressure strength of the cylinder of the nutrient biofilm carrier. Meanwhile,the basic features of the carrier were tested and compared with the traditional ceramic filler. Thus,the results of our experimental test prove that the biofilm carrier tends to be a little bit different as the basic filler in terms of the above selected indicators. Nevertheless,as compared with the basic carrier and the traditional ceramsite carrier,it has been found well functionalized merely 10 days later from its incubation in the H_2 S removing system with the nutrient biofilm carrier( incubated with the activated sludge). This ought to be made possible due to the strong nutrient release capacity( whose total phosphorus rate is 0. 386 3 mg/g and the total nitrogen content rate is 0. 076 4 mg/g at 15 th day) resulted due to the low temperature maturation process. On the other hand,the great specific surface area( 13. 499 m~2/g) of the biofilm carrier should also be in favor of the nutrient release so as to promote the microbe growth. For,with the prepared biofilm carrier,it would be possible to push the H_2 S removing efficiency up to 90% in case the inlet H_2 S concentration can be kept below 460 mg/m~3 and the inlet flow-0. 6 m~3/h. For,under the conditions of 28. 3-33. 4 and the residence time of 0. 55-0. 65 m~3/h for inlet flow,and the maximum H_2 S removal efficiency can be expected to reach 99%. Further studies we have made also reveal that the system enjoys nice tolerance for the fluctuation of pH value and pollutant loads.
The present paper intends to examine and trace the removal effect of the high content concentrations of hydrogen sul-fide by a biofilter filler made of fly ash. For this purpose,we have managed to make ready a novel biofilm carrier with the steam curing or treating method and the optimalized constituents of the biofilm carrier include 8% of fly ash,1. 2% of cement,and 0. 2% of lime stone,and 0. 25% of plaster,with the sodium sulphate anhydrous being of 0. 125% and 0. 2% of the biomass ash. Furthermore,in the carrier maturation process,10 mL of trace element has been aided to the nutrient solution containing respectively NH_4 Cl 0. 4 g/L; MgSO_4·7 H_2 O 0. 8 g/L; KH_2 PO_44. 0 g/L,along with 10. 0 g/L of glucose; 3. 0 g/L of tryptone and 1. 0 g/L of yeast extract. As the same time,the paper has also worked out the basic carrier of deionized water in the maturation process,whose general physico-chemical features may include pH particle size,specific surface area,water absorption rate,and pressure strength of the cylinder of the nutrient biofilm carrier. Meanwhile,the basic features of the carrier were tested and compared with the traditional ceramic filler. Thus,the results of our experimental test prove that the biofilm carrier tends to be a little bit different as the basic filler in terms of the above selected indicators. Nevertheless,as compared with the basic carrier and the traditional ceramsite carrier,it has been found well functionalized merely 10 days later from its incubation in the H_2 S removing system with the nutrient biofilm carrier( incubated with the activated sludge). This ought to be made possible due to the strong nutrient release capacity( whose total phosphorus rate is 0. 386 3 mg/g and the total nitrogen content rate is 0. 076 4 mg/g at 15 th day) resulted due to the low temperature maturation process. On the other hand,the great specific surface area( 13. 499 m~2/g) of the biofilm carrier should also be in favor of the nutrient release so as to promote the microbe growth. For,with the prepared biofilm carrier,it would be possible to push the H_2 S removing efficiency up to 90% in case the inlet H_2 S concentration can be kept below 460 mg/m~3 and the inlet flow-0. 6 m~3/h. For,under the conditions of 28. 3-33. 4 and the residence time of 0. 55-0. 65 m~3/h for inlet flow,and the maximum H_2 S removal efficiency can be expected to reach 99%. Further studies we have made also reveal that the system enjoys nice tolerance for the fluctuation of pH value and pollutant loads.
引文
[1] JABER M B,COUVERT A,AMRANE A,et al. Biofiltration of H2S in air-experimental comparisons of original packing materials and modeling[J]. Biochemical Engineering Journal,2016,112:153-160.
[2] LI Li(李李),CAO Yu(曹煜),LIN Fan(林璠),et al.Current research deal with hydrogen sulfide[J]. Guangzhou Chemical Industry(广州化工),2015(8):27-29.
[3] MOUNA B J,COUVERT A,AMRANE A,et al. Biofiltration of high concentration of H2S in waste air under extreme acidic conditions[J]. New Biotechnology,2016,33(1):136-143.
[4] CHEN Yiqing,FAN Zhidong,MA Lixia,et al. Performance of three pilot-scale immobilized-cell biotrickling filters for removal of hydrogen sulfide from a contaminated air steam[J]. Saudi Journal of Biological Sciences,2014,21(5):450-456.
[5] MONTEBELLO A M,BEZERRA T,ROVIRA R,et al.Operational aspects,p H transition and microbial shifts of a H2S desulfurizing biotrickling filter with random packing material[J]. Chemosphere,2013,93(11):2675-2682.
[6] JABER M B,ANET B,AMRANE A,et al. Impact of nutrients supply and p H changes on the elimination of hydrogen sulfide,dimethyl disulfide and ethanethiol by biofiltration[J]. Chemical Engineering Journal,2014,258:420-426.
[7] OMRI I,AOUIDI F,BOUALLAGUI H,et al. Performance study of biofilter developed to treat H2S from wastewater odour[J]. Saudi Journal of Biological Sciences,2013,21:169-176.
[8] COX H H J,DESHUSSES M A. Co-treatment of H2S and toluene in a biotrickling filter[J]. Chemical Engineering Journal,2002,87(1):101-110.
[9] MEI Yu(梅瑜),CHENG Zhuowei(成卓韦),WANG Jiade(王家德),et al. Performance evaluation of three novel biotrickling packings[J]. Environmental Science(环境科学),2013,34(12):4661-4668.
[10] WU Yonggang(伍永钢),REN Hongqiang(任洪强),DING Lili(丁丽丽),et al. Study on the start-up of an innovative polyethylene carrier biotrickling filter treating waste gas containing hydrogen sulphide[J]. Environmental Science(环境科学), 2006, 27(12):2396-2400.
[11] CHEN Yiqing(陈益清),CHEN Lei(陈雷),WU Jianwei(伍健威),et al. Influence of filler on biotrickling filters for hydrogen sulfide degradation[J]. Chinese Journal of Environmental Engineering(环境工程学报),2016,10(7):3763-3767.
[12] LI Huaigang(李怀刚),LI Shunyi(李顺义),WANG Yan(王岩). Performance evaluation of a new type biological deodorization packing[J]. Henan Chemical Industry(河南化工),2012,29(1):39-42.
[13] CHEN Yanguang(陈彦广),LU Jia(陆佳),HAN Hongjing(韩洪晶),et al. Research development of controlling air pollutions using fly ash as a low cost adsorbent[J]. Chemical Industry and Engineering Progress(化工进展),2013,32(8):1905-1913.
[14] LI Maohui(李茂辉),YANG Zhiqiang(杨志强),WANG Youtuan(王有团),et al. Experiment study of compressive strength and mechanical property of filling body for fly ash composite cementitious materials[J].Journal of China University of Mining&Technology(中国矿业大学学报),2015,44(4):650-655.
[15] JIANG Li(蒋丽),CHEN Jianyu(谌建宇),LI Xiaoming(李小明),et al. Adsorption of phosphate from wastewater by fly ash ceramsite[J]. Acta Scientiae Circumstantiae(环境科学学报), 2011, 31(7):1413-1420.
[16] LAN Shanhong(兰善红),YANG Dan(杨丹),FAN Hongbo(范洪波),et al. Preparation of a new type fly ash haydite and its application in treating dyeworks wastewater[J]. Environmental Science&Technology(环境科学与技术),2011,34(6G):35-37.
[17] GU Hui(顾回),WANG Guohui(王国惠),SUN Shaotang(孙绍棠). Study on the influence of the composition of biologic padding for waste gas purification on its water absorption characteristics[J]. Guangdong Chemical Industry(广东化工),2015,42(20):88-89.
[18] YAO Zhitong(姚志通). The resource utilization of solid waste coal fly ash-case study of ash from Hangzhou thermal power plant and Banshan power plant(固体废弃物粉煤灰的资源化利用-以杭州热电厂和半山电厂粉煤灰为例)[D]. Hangzhou:Zhejiang University,2010.
[19] WANG Xixi(王曦曦),LUN Ling(伦琳),ZHANG Jibiao(张继彪),et al. Biomass and microbial activity in modified biological aerated filter[J]. Chinese Journal of Environmental Engineering(环境工程学报),2012,6(6):1829-1833.
[20] LU Aimei(逯爱梅). Hydrogen sulfide and NADPH oxidase[J]. Chemistry of Life(生命化学),2010,30(2):303-305.
[21] VAN DEN BOSCH P L,SOROKIN D Y,BUISMAN C J,et al. The effect of p H on thiosulfate formation in a biotechnological process for the removal of hydrogen sulfide from gas streams[J]. Environ Sci&Technol,2008,42(7):2637-2642.
[2] LI Li(李李),CAO Yu(曹煜),LIN Fan(林璠),et al.Current research deal with hydrogen sulfide[J]. Guangzhou Chemical Industry(广州化工),2015(8):27-29.
[3] MOUNA B J,COUVERT A,AMRANE A,et al. Biofiltration of high concentration of H2S in waste air under extreme acidic conditions[J]. New Biotechnology,2016,33(1):136-143.
[4] CHEN Yiqing,FAN Zhidong,MA Lixia,et al. Performance of three pilot-scale immobilized-cell biotrickling filters for removal of hydrogen sulfide from a contaminated air steam[J]. Saudi Journal of Biological Sciences,2014,21(5):450-456.
[5] MONTEBELLO A M,BEZERRA T,ROVIRA R,et al.Operational aspects,p H transition and microbial shifts of a H2S desulfurizing biotrickling filter with random packing material[J]. Chemosphere,2013,93(11):2675-2682.
[6] JABER M B,ANET B,AMRANE A,et al. Impact of nutrients supply and p H changes on the elimination of hydrogen sulfide,dimethyl disulfide and ethanethiol by biofiltration[J]. Chemical Engineering Journal,2014,258:420-426.
[7] OMRI I,AOUIDI F,BOUALLAGUI H,et al. Performance study of biofilter developed to treat H2S from wastewater odour[J]. Saudi Journal of Biological Sciences,2013,21:169-176.
[8] COX H H J,DESHUSSES M A. Co-treatment of H2S and toluene in a biotrickling filter[J]. Chemical Engineering Journal,2002,87(1):101-110.
[9] MEI Yu(梅瑜),CHENG Zhuowei(成卓韦),WANG Jiade(王家德),et al. Performance evaluation of three novel biotrickling packings[J]. Environmental Science(环境科学),2013,34(12):4661-4668.
[10] WU Yonggang(伍永钢),REN Hongqiang(任洪强),DING Lili(丁丽丽),et al. Study on the start-up of an innovative polyethylene carrier biotrickling filter treating waste gas containing hydrogen sulphide[J]. Environmental Science(环境科学), 2006, 27(12):2396-2400.
[11] CHEN Yiqing(陈益清),CHEN Lei(陈雷),WU Jianwei(伍健威),et al. Influence of filler on biotrickling filters for hydrogen sulfide degradation[J]. Chinese Journal of Environmental Engineering(环境工程学报),2016,10(7):3763-3767.
[12] LI Huaigang(李怀刚),LI Shunyi(李顺义),WANG Yan(王岩). Performance evaluation of a new type biological deodorization packing[J]. Henan Chemical Industry(河南化工),2012,29(1):39-42.
[13] CHEN Yanguang(陈彦广),LU Jia(陆佳),HAN Hongjing(韩洪晶),et al. Research development of controlling air pollutions using fly ash as a low cost adsorbent[J]. Chemical Industry and Engineering Progress(化工进展),2013,32(8):1905-1913.
[14] LI Maohui(李茂辉),YANG Zhiqiang(杨志强),WANG Youtuan(王有团),et al. Experiment study of compressive strength and mechanical property of filling body for fly ash composite cementitious materials[J].Journal of China University of Mining&Technology(中国矿业大学学报),2015,44(4):650-655.
[15] JIANG Li(蒋丽),CHEN Jianyu(谌建宇),LI Xiaoming(李小明),et al. Adsorption of phosphate from wastewater by fly ash ceramsite[J]. Acta Scientiae Circumstantiae(环境科学学报), 2011, 31(7):1413-1420.
[16] LAN Shanhong(兰善红),YANG Dan(杨丹),FAN Hongbo(范洪波),et al. Preparation of a new type fly ash haydite and its application in treating dyeworks wastewater[J]. Environmental Science&Technology(环境科学与技术),2011,34(6G):35-37.
[17] GU Hui(顾回),WANG Guohui(王国惠),SUN Shaotang(孙绍棠). Study on the influence of the composition of biologic padding for waste gas purification on its water absorption characteristics[J]. Guangdong Chemical Industry(广东化工),2015,42(20):88-89.
[18] YAO Zhitong(姚志通). The resource utilization of solid waste coal fly ash-case study of ash from Hangzhou thermal power plant and Banshan power plant(固体废弃物粉煤灰的资源化利用-以杭州热电厂和半山电厂粉煤灰为例)[D]. Hangzhou:Zhejiang University,2010.
[19] WANG Xixi(王曦曦),LUN Ling(伦琳),ZHANG Jibiao(张继彪),et al. Biomass and microbial activity in modified biological aerated filter[J]. Chinese Journal of Environmental Engineering(环境工程学报),2012,6(6):1829-1833.
[20] LU Aimei(逯爱梅). Hydrogen sulfide and NADPH oxidase[J]. Chemistry of Life(生命化学),2010,30(2):303-305.
[21] VAN DEN BOSCH P L,SOROKIN D Y,BUISMAN C J,et al. The effect of p H on thiosulfate formation in a biotechnological process for the removal of hydrogen sulfide from gas streams[J]. Environ Sci&Technol,2008,42(7):2637-2642.
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