改性玄武岩纤维制备及其在微生物载体的应用
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摘要
为提高玄武岩纤维(BF)作为微生物载体的生物亲和性,采用酸碱刻蚀法获得改性玄武岩纤维(MBF),以达到提高BF表面粗糙度的目的。通过扫描电子显微镜观察BF刻蚀前后微观形貌的变化,以大肠埃希菌的生长曲线评估MBF的生理毒性,并采用光学显微镜观察改性前后BF表面微生物的生长情况。结果表明:与BF相比,MBF表面较为粗糙,表面粗糙度和比表面积均有所增加。MBF固定的微生物量明显增加,说明表面粗糙度的增加有利于提高BF的生物亲和性,提高其作为微生物载体时的污/废水处理效能。
To improve the bio-affinity of basalt fiber(BF) as microorganism carrier media, the modified basalt fiber was prepared by acidmorphologies of BF and MBF were characterized by scanning electron microscope, and the growth curves of Escherichia coli were investigated to evaluate the toxicity of BF and MBF, while the growth of microorganism adhered on MBF surface was observed by optical microscope. The results show that MBF becomes roughness by comparison with BF, and both the surface roughness and surface area increase. The biomass immobilized on MBF has been significantly improved, indicating that the increase of surface roughness is benefit to the improvement of bio-affinity and the wastewater treatment efficiency.
To improve the bio-affinity of basalt fiber(BF) as microorganism carrier media, the modified basalt fiber was prepared by acidmorphologies of BF and MBF were characterized by scanning electron microscope, and the growth curves of Escherichia coli were investigated to evaluate the toxicity of BF and MBF, while the growth of microorganism adhered on MBF surface was observed by optical microscope. The results show that MBF becomes roughness by comparison with BF, and both the surface roughness and surface area increase. The biomass immobilized on MBF has been significantly improved, indicating that the increase of surface roughness is benefit to the improvement of bio-affinity and the wastewater treatment efficiency.
引文
[1] IORIO M, SANTARELLI M L, G González-Gaitano, et al. Surface modification and characterization of basalt fibers as potential reinforcement of concretes[J]. Applied Surface Science, 2018, 427:1248-1256.
[2]许志至,许小红,吴向阳,等.纳米SiO2分散液表面改性玄武岩纤维载体的研究[J].合成纤维, 2016, 45(10):15-17.
[3]姚勇,陈中武,鲜平,等.玄武岩纤维在载体方向的应用现状[J].合成纤维, 2015, 44(6):33-36.
[4]陈菁,顾轶卓,杨中甲,等.高温处理对几种玄武岩纤维成分和拉伸性能的影响[J].材料工程, 2017, 45(6):61-66.
[5]董丽茜,陈进富,郭春梅,等.玄武岩纤维在环保领域的应用研究现状及展望[J].当代化工, 2018(2):387-391.
[6]胡显奇,申屠年.连续玄武岩纤维在军工及民用领域的应用[J].高科技纤维与应用, 2005, 30(6):7-13.
[7]杨莉,吴宜城,沈城伟.玄武岩纤维的性能及应用[J].成都纺织高等专科学校学报, 2016, 33(1):132-135.
[8]杨堃.玄武岩纤维在产业用纺织品中的应用现状[J].棉纺织技术,2016, 44(9):82-84.
[9] ZHANG X Y, ZHOU X T, NI H C, et al. Surface modification of basalt fiber, with organic/inorganic composites for biofilm carrier used in wastewater treatment[J]. ACS Sustainable Chemistry&Engineering, 2018, 6(2):2596-2602.
[10] JIANG X, WU C D, WU Z R, et al. Basic characteristics and application of basalt fiber in the water pollution control[J]. Advanced Materials Research, 2015, 1073-1076:838-843.
[11] NI H C, ZHOU X T, ZHANG X Y, et al. Feasibility of using basalt fiber as biofilm carrier to construct bio-nest for wastewater treatment[J].Chemosphere, 2018, 212:768-776.
[12]靳婷婷,申士杰,李静,等.玄武岩纤维表面处理新方法——酸刻蚀处理的可行性研究[J].材料导报, 2014, 28(12):116-118.
[13] MATSUMOTO S, OHTAKI A, HORI K. Carbon fiber as an excellent support material for wastewater treatment biofilms[J]. Environmental Science&Technology, 2012, 46(18):10175-10181.
[14] XU S, JIANG Q. Surface modification of carbon fiber support by ferrous oxalate for biofilm wastewater treatment system[J]. Journal of Cleaner Production, 2018, 194:416-424.
[15] LIU Q, ZHANG C, BAO Y, et al. Carbon fibers with a nano-hydroxyapatite coating as an excellent biofilm support for bioreactors[J]. Applied Surface Science, 2018, 443:255-265.
[2]许志至,许小红,吴向阳,等.纳米SiO2分散液表面改性玄武岩纤维载体的研究[J].合成纤维, 2016, 45(10):15-17.
[3]姚勇,陈中武,鲜平,等.玄武岩纤维在载体方向的应用现状[J].合成纤维, 2015, 44(6):33-36.
[4]陈菁,顾轶卓,杨中甲,等.高温处理对几种玄武岩纤维成分和拉伸性能的影响[J].材料工程, 2017, 45(6):61-66.
[5]董丽茜,陈进富,郭春梅,等.玄武岩纤维在环保领域的应用研究现状及展望[J].当代化工, 2018(2):387-391.
[6]胡显奇,申屠年.连续玄武岩纤维在军工及民用领域的应用[J].高科技纤维与应用, 2005, 30(6):7-13.
[7]杨莉,吴宜城,沈城伟.玄武岩纤维的性能及应用[J].成都纺织高等专科学校学报, 2016, 33(1):132-135.
[8]杨堃.玄武岩纤维在产业用纺织品中的应用现状[J].棉纺织技术,2016, 44(9):82-84.
[9] ZHANG X Y, ZHOU X T, NI H C, et al. Surface modification of basalt fiber, with organic/inorganic composites for biofilm carrier used in wastewater treatment[J]. ACS Sustainable Chemistry&Engineering, 2018, 6(2):2596-2602.
[10] JIANG X, WU C D, WU Z R, et al. Basic characteristics and application of basalt fiber in the water pollution control[J]. Advanced Materials Research, 2015, 1073-1076:838-843.
[11] NI H C, ZHOU X T, ZHANG X Y, et al. Feasibility of using basalt fiber as biofilm carrier to construct bio-nest for wastewater treatment[J].Chemosphere, 2018, 212:768-776.
[12]靳婷婷,申士杰,李静,等.玄武岩纤维表面处理新方法——酸刻蚀处理的可行性研究[J].材料导报, 2014, 28(12):116-118.
[13] MATSUMOTO S, OHTAKI A, HORI K. Carbon fiber as an excellent support material for wastewater treatment biofilms[J]. Environmental Science&Technology, 2012, 46(18):10175-10181.
[14] XU S, JIANG Q. Surface modification of carbon fiber support by ferrous oxalate for biofilm wastewater treatment system[J]. Journal of Cleaner Production, 2018, 194:416-424.
[15] LIU Q, ZHANG C, BAO Y, et al. Carbon fibers with a nano-hydroxyapatite coating as an excellent biofilm support for bioreactors[J]. Applied Surface Science, 2018, 443:255-265.