餐厨垃圾生物质炭制备及其吸附水中亚甲基蓝性能
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摘要
以餐厨垃圾为原材料,通过高温热解法和共沉淀法制备了餐厨垃圾生物质炭(Natural kitchen waste biochar,NKB)和磁性餐厨垃圾生物质炭(Magnetic kitchen waste biochar,MKB),研究了热解温度、热解时间、吸附剂量、吸附时间和溶液pH值等条件对生物质炭吸附水中亚甲基蓝(MB)性能的影响。结果发现,在热解温度450℃、热解时间1 h条件下制备的NKB对MB吸附性能最好;在生物质炭投加量1.0 g·L~(-1)、吸附时间20 min、pH值为9的条件下,MKB对MB的去除率和吸附量分别为97.94%和9.2 mg·g~(-1),分别比NKB提高18.54个百分点和1.6 mg·g~(-1);经过多次再生后,MKB对MB的吸附去除率仍在90%以上;吸附过程符合Langmuir等温吸附模型。研究表明,餐厨垃圾生物质炭经过赋磁可提高对亚甲基蓝的吸附性能,碱性条件下吸附性能较好,且能多次循环再生。
Natural kitchen waste biochar(NKB)and magnetic kitchen waste biochar(MKB)were prepared by pyrolysis and coprecipitation method using food waste as raw material. The effects of pyrolysis temperature, pyrolysis time, adsorbent dosage, adsorption time and the pH of solution on the adsorption capacity of methylene blue(MB)were investigated. The results showed that the optimum adsorption capacity of NKB was obtained at the pyrolysis temperature of 450 ℃ and the pyrolysis time of 1 h. When the MKB was 1.0 g·L~(-1), the adsorption time was20 min, and pH was 9, the adsorption capacity and removal rate of MB arrived 97.94% and 9.2 mg·g~(-1), which was 18.54% and 1.6 mg·g~(-1) higher than that of NKB, respectively. For MKB, after 4 cycles regeneration, the removal rate of MB was still above 90%. The adsorption process of kitchen waste biochar for MB could be described by Langmuir isothermal adsorption model.
Natural kitchen waste biochar(NKB)and magnetic kitchen waste biochar(MKB)were prepared by pyrolysis and coprecipitation method using food waste as raw material. The effects of pyrolysis temperature, pyrolysis time, adsorbent dosage, adsorption time and the pH of solution on the adsorption capacity of methylene blue(MB)were investigated. The results showed that the optimum adsorption capacity of NKB was obtained at the pyrolysis temperature of 450 ℃ and the pyrolysis time of 1 h. When the MKB was 1.0 g·L~(-1), the adsorption time was20 min, and pH was 9, the adsorption capacity and removal rate of MB arrived 97.94% and 9.2 mg·g~(-1), which was 18.54% and 1.6 mg·g~(-1) higher than that of NKB, respectively. For MKB, after 4 cycles regeneration, the removal rate of MB was still above 90%. The adsorption process of kitchen waste biochar for MB could be described by Langmuir isothermal adsorption model.
引文
[1]任南琪,周显娇,郭婉茜,等.染料废水处理技术研究进展[J].化工学报, 2013, 64(1):84-94.REN Nan-qi, ZHOU Xian-jiao, GUO Wan-qian, et al. A review on treatment methods of dye wastewater[J]. CIESC Journal, 2013, 64(1):84-94.
[2]孟范平,易怀昌.各种吸附材料在印染废水处理中的应用[J].材料导报, 2009, 23(7):69-73.MENG Fan-ping, YI Huai-chang. Application of different adsorbents on dyeing wasterwater treatment[J]. Materials Review, 2009, 23(7):69-73.
[3]杨金杯,陈玉成,余美琼,等. 001×14.5离子交换树脂对镍(Ⅱ)的吸附[J].环境工程学报, 2013, 7(8):3019-3024.YANG Jin-bei, CHEN Yu-cheng, YU Mei-qiong, et al. Adsorption of Ni(Ⅱ)by ion exchange resin[J]. Chinese Journal of Environmental Engineering, 2013, 7(8):3019-3024.
[4]刘盛余,马少健,高谨,等.钢渣吸附剂吸附机理的研究[J].环境工程学报, 2008, 2(1):115-119.LIU Sheng-yu, MA Shao-jian, GAO Jin, et al. Study on the absorption mechanics of steel slag[J]. Chinese Journal of Environmental Engineering, 2008, 2(1):115-119.
[5]Xiao F, Huang J C. Comparison of biosorbents with inorganic sorbents for removing copper(Ⅱ)from aqueous solutions[J]. Journal of Environmental Management, 2009, 90(10):3105-3109.
[6]谢炜平,梁彦杰,何德文,等.餐厨垃圾资源化技术现状及研究进展[J].环境卫生工程, 2008, 16(2):43-48.XIE Wei-ping, LIANG Yan-jie, HE De-wen, et al. Status and development of food residue resource technology[J]. Environmental Sanitation Engineering, 2008, 16(2):43-48.
[7]Li Y Y, Jin Y Y, Li J H, et al. Current situation and development of kitchen waste treatment in China[J]. Procedia Environmental Sciences,2016, 31(2):40-49.
[8]Wang S, Zeng Y. Ammonia emission mitigation in food waste composting:A review[J]. Bioresource Technology, 2017, 248(1):13-19.
[9]Shen J, Wang C, Liu Y, et al. Effect of ultrasonic pretreatment of the dairy manure on the electricity generation of microbial fuel cell[J]. Biochemical Engineering Journal, 2017, 129(1):44-49.
[10]徐鹏,穆献中.餐厨垃圾在能源生产中的应用与发展[J].现代化工, 2016(5):12-16.XU Peng, MU Xian-zhong. The application and development of kitchen waste in energy production[J]. Modern Chemical Industry, 2016(5):12-16.
[11]周新华,齐庆杰,郝宇,等.玉米秸秆热解规律的试验研究[J].可再生能源, 2005(6):21-23.ZHOU Xin-hua, QI Qing-Jie, HAO Yu, et al. The experimental research on the pyrolysis characteristics of corn stalk at the different conditions[J]. Renewable Energy, 2005(6):21-23.
[12]曹俊,肖刚,许啸,等.木质素热解/炭化官能团演变与焦炭形成[J].东南大学学报(自然科学版), 2012, 42(1):83-87.CAO Jun, XIAO Gang, XU Xiao, et al. Functional groups evolvement and charcoal formation during lignin pyrolysis carbonization[J]. Journal of Southeast University(Nutural Science Edition), 2012, 42(1):83-87.
[13]杜海清.木质类生物质催化热解动力学研究[D].哈尔滨:黑龙江大学, 2008.DU Hai-qing. Study on catalytic pyrolysis kinetics of wood biomass[D]. Harbin:Heilongjiang University, 2008.
[14]张惠灵,卢雪丽,俞琴,等.污泥棉花壳吸附剂处理亚甲基蓝的研究[J].环境科学与技术, 2015, 38(10):124-128.ZHANG Hui-ling, LU Xue-li, YU Qin, et al. Study on sludge cotton shell adsorbent of methylene blue[J]. Environmental Science&Technology, 2015, 38(10):124-128.
[15]邓潇,周航,陈珊,等.改性玉米秸秆炭和花生壳炭对溶液中Cd2+的吸附[J].环境工程学报, 2016, 10(11):6325-6331.DENG Xiao, ZHOU Hang, CHEN Shan, et al. The adsorption of Cd2+in the solution of modified maize straw charcoal and peanut shell charcoal[J]. Chinese Journal of Environmental Engineering, 2016, 10(11):6325-6331.
[16]Kojima N, Mitomo A, Itaya Y, et al. Adsorption removal of pollutants by active cokes produced from sludge in the energy recycle process of wastes[J]. Waste Management, 2002, 22(4):399-404.
[17]曹玮,周航,邓贵友,等.改性谷壳生物炭负载磁性Fe去除废水中Pb2+的效果及机制[J].环境工程学报, 2017, 11(3):1437-1444.CAO Wei, ZHOU Hang, DENG Gui-you, et al. Modified chaff biochar load magnetic Fe removal effect and mechanism of Pb2+in waste water[J]. Chinese Journal of Environmental Engineering, 2017, 11(3):1437-1444.
[18]车晓冬,丁竹红,胡忻,等.微波加热硝酸氧化改性稻壳基生物质炭对Pb(Ⅱ)和亚甲基蓝的吸附作用[J].农业环境科学学报,2016, 35(9):1773-1780.CHE Xiao-dong, DING Zhu-hong, HU Xin, et al. Microwave heating nitric acid oxidation modified rice husk based biomass carbon of Pb(Ⅱ)and methylene blue adsorption[J]. Journal of Agro-Environment Science, 2016, 35(9):1773-1780.
[19]吴海露,车晓冬,丁竹红,等.山核桃、苔藓和松针基生物质炭对亚甲基蓝及刚果红的吸附性能研究[J].农业环境科学学报, 2015, 34(8):1575-1581.WU Hai-lu, CHE Xiao-dong, DING Zhu-hong, et al. Study on the adsorption properties of methylene blue and Congo red with pecan, moss and pine needles[J]. Journal of Agro-Environment Science, 2015, 34(8):1575-1581.
[20]杨勃.市政污泥制备吸附剂的初步研究[D].武汉:华中科技大学, 2010.YANG Bo. Preliminary study on preparation of adsorbent for municipal sludge[D]. Wuhan:Huazhong University of Science and Technology, 2010.
[21]邢英,李心清,周志红,等.生物炭对水体中铵氮的吸附特征及其动力学研究[J].地球与环境. 2011, 39(4):511-516.XING Ying, LI Xin-qing, ZHOU Zhi-hong, et al. Adsorption and kinetics of ammonium from aqueous medium onto biochar[J]. Earth&Environment, 2011, 39(4):511-516.
[22]李国亭,冯艳敏,柴晓琪,等.镧改性活性炭纤维高效吸附去除对苯醌[J].环境工程学报, 2016, 10(4):1638-1644.LI Guo-ting, FENG Yan-min, CAI Xiao-qi, et al. Efficient adsorptive removal of p-benzoquinone by lanthanum modified activated carbon fibre[J]. Chinese Journal of Environmental Engineering, 2016, 10(4):1638-1644.
[2]孟范平,易怀昌.各种吸附材料在印染废水处理中的应用[J].材料导报, 2009, 23(7):69-73.MENG Fan-ping, YI Huai-chang. Application of different adsorbents on dyeing wasterwater treatment[J]. Materials Review, 2009, 23(7):69-73.
[3]杨金杯,陈玉成,余美琼,等. 001×14.5离子交换树脂对镍(Ⅱ)的吸附[J].环境工程学报, 2013, 7(8):3019-3024.YANG Jin-bei, CHEN Yu-cheng, YU Mei-qiong, et al. Adsorption of Ni(Ⅱ)by ion exchange resin[J]. Chinese Journal of Environmental Engineering, 2013, 7(8):3019-3024.
[4]刘盛余,马少健,高谨,等.钢渣吸附剂吸附机理的研究[J].环境工程学报, 2008, 2(1):115-119.LIU Sheng-yu, MA Shao-jian, GAO Jin, et al. Study on the absorption mechanics of steel slag[J]. Chinese Journal of Environmental Engineering, 2008, 2(1):115-119.
[5]Xiao F, Huang J C. Comparison of biosorbents with inorganic sorbents for removing copper(Ⅱ)from aqueous solutions[J]. Journal of Environmental Management, 2009, 90(10):3105-3109.
[6]谢炜平,梁彦杰,何德文,等.餐厨垃圾资源化技术现状及研究进展[J].环境卫生工程, 2008, 16(2):43-48.XIE Wei-ping, LIANG Yan-jie, HE De-wen, et al. Status and development of food residue resource technology[J]. Environmental Sanitation Engineering, 2008, 16(2):43-48.
[7]Li Y Y, Jin Y Y, Li J H, et al. Current situation and development of kitchen waste treatment in China[J]. Procedia Environmental Sciences,2016, 31(2):40-49.
[8]Wang S, Zeng Y. Ammonia emission mitigation in food waste composting:A review[J]. Bioresource Technology, 2017, 248(1):13-19.
[9]Shen J, Wang C, Liu Y, et al. Effect of ultrasonic pretreatment of the dairy manure on the electricity generation of microbial fuel cell[J]. Biochemical Engineering Journal, 2017, 129(1):44-49.
[10]徐鹏,穆献中.餐厨垃圾在能源生产中的应用与发展[J].现代化工, 2016(5):12-16.XU Peng, MU Xian-zhong. The application and development of kitchen waste in energy production[J]. Modern Chemical Industry, 2016(5):12-16.
[11]周新华,齐庆杰,郝宇,等.玉米秸秆热解规律的试验研究[J].可再生能源, 2005(6):21-23.ZHOU Xin-hua, QI Qing-Jie, HAO Yu, et al. The experimental research on the pyrolysis characteristics of corn stalk at the different conditions[J]. Renewable Energy, 2005(6):21-23.
[12]曹俊,肖刚,许啸,等.木质素热解/炭化官能团演变与焦炭形成[J].东南大学学报(自然科学版), 2012, 42(1):83-87.CAO Jun, XIAO Gang, XU Xiao, et al. Functional groups evolvement and charcoal formation during lignin pyrolysis carbonization[J]. Journal of Southeast University(Nutural Science Edition), 2012, 42(1):83-87.
[13]杜海清.木质类生物质催化热解动力学研究[D].哈尔滨:黑龙江大学, 2008.DU Hai-qing. Study on catalytic pyrolysis kinetics of wood biomass[D]. Harbin:Heilongjiang University, 2008.
[14]张惠灵,卢雪丽,俞琴,等.污泥棉花壳吸附剂处理亚甲基蓝的研究[J].环境科学与技术, 2015, 38(10):124-128.ZHANG Hui-ling, LU Xue-li, YU Qin, et al. Study on sludge cotton shell adsorbent of methylene blue[J]. Environmental Science&Technology, 2015, 38(10):124-128.
[15]邓潇,周航,陈珊,等.改性玉米秸秆炭和花生壳炭对溶液中Cd2+的吸附[J].环境工程学报, 2016, 10(11):6325-6331.DENG Xiao, ZHOU Hang, CHEN Shan, et al. The adsorption of Cd2+in the solution of modified maize straw charcoal and peanut shell charcoal[J]. Chinese Journal of Environmental Engineering, 2016, 10(11):6325-6331.
[16]Kojima N, Mitomo A, Itaya Y, et al. Adsorption removal of pollutants by active cokes produced from sludge in the energy recycle process of wastes[J]. Waste Management, 2002, 22(4):399-404.
[17]曹玮,周航,邓贵友,等.改性谷壳生物炭负载磁性Fe去除废水中Pb2+的效果及机制[J].环境工程学报, 2017, 11(3):1437-1444.CAO Wei, ZHOU Hang, DENG Gui-you, et al. Modified chaff biochar load magnetic Fe removal effect and mechanism of Pb2+in waste water[J]. Chinese Journal of Environmental Engineering, 2017, 11(3):1437-1444.
[18]车晓冬,丁竹红,胡忻,等.微波加热硝酸氧化改性稻壳基生物质炭对Pb(Ⅱ)和亚甲基蓝的吸附作用[J].农业环境科学学报,2016, 35(9):1773-1780.CHE Xiao-dong, DING Zhu-hong, HU Xin, et al. Microwave heating nitric acid oxidation modified rice husk based biomass carbon of Pb(Ⅱ)and methylene blue adsorption[J]. Journal of Agro-Environment Science, 2016, 35(9):1773-1780.
[19]吴海露,车晓冬,丁竹红,等.山核桃、苔藓和松针基生物质炭对亚甲基蓝及刚果红的吸附性能研究[J].农业环境科学学报, 2015, 34(8):1575-1581.WU Hai-lu, CHE Xiao-dong, DING Zhu-hong, et al. Study on the adsorption properties of methylene blue and Congo red with pecan, moss and pine needles[J]. Journal of Agro-Environment Science, 2015, 34(8):1575-1581.
[20]杨勃.市政污泥制备吸附剂的初步研究[D].武汉:华中科技大学, 2010.YANG Bo. Preliminary study on preparation of adsorbent for municipal sludge[D]. Wuhan:Huazhong University of Science and Technology, 2010.
[21]邢英,李心清,周志红,等.生物炭对水体中铵氮的吸附特征及其动力学研究[J].地球与环境. 2011, 39(4):511-516.XING Ying, LI Xin-qing, ZHOU Zhi-hong, et al. Adsorption and kinetics of ammonium from aqueous medium onto biochar[J]. Earth&Environment, 2011, 39(4):511-516.
[22]李国亭,冯艳敏,柴晓琪,等.镧改性活性炭纤维高效吸附去除对苯醌[J].环境工程学报, 2016, 10(4):1638-1644.LI Guo-ting, FENG Yan-min, CAI Xiao-qi, et al. Efficient adsorptive removal of p-benzoquinone by lanthanum modified activated carbon fibre[J]. Chinese Journal of Environmental Engineering, 2016, 10(4):1638-1644.