铁锰氧化物用于石油开采污染的原水净化研究
|
摘要
利用铁锰氧化物吸附铅、铬重金属离子,以净化石油开采污染的原水。试验结果表明,铁锰氧化物对Pb~(2+)、Cr~(6+)具有较好的吸附,在污染原水中去除率分别达到72.3%和77.5%。拟合结果表明:铁锰氧化物对Pb~(2+)、Cr~(6+)的吸附符合准二级反应动力学特征,且随着溶液pH的升高,重金属离子的去除率缓慢增大,而共存有机物(腐蚀酸、尿素)对铁锰氧化物吸附铅、铬离子影响较小,因此铁锰氧化物可推广用于石油开采污染的原水治理。
The heavy metal ions such as Pb~(2+) and Cr~(6+) in raw water were absorbed by Fe-Mn oxide for oil exploitation pollution.The results show that Fe-Mn oxide has strong adsorption ability to both Pb~(2+) and Cr~(6+),and the removal rate in pollutional water was up to 72.3% and 77.5%.Second-order reaction described the adsorption kinetics,with the removal rateof heavy metal ions slowly increased in rising of solution p H.Meanwhile,coexist organics,such as humic acid and carbamide,had no significant effect on these things removal.Therefore,Fe-Mn oxide could be an attractive adsorbent for Pb~(2+) and Cr~(6+) removal from pollutional water by oil exploitation.
The heavy metal ions such as Pb~(2+) and Cr~(6+) in raw water were absorbed by Fe-Mn oxide for oil exploitation pollution.The results show that Fe-Mn oxide has strong adsorption ability to both Pb~(2+) and Cr~(6+),and the removal rate in pollutional water was up to 72.3% and 77.5%.Second-order reaction described the adsorption kinetics,with the removal rateof heavy metal ions slowly increased in rising of solution p H.Meanwhile,coexist organics,such as humic acid and carbamide,had no significant effect on these things removal.Therefore,Fe-Mn oxide could be an attractive adsorbent for Pb~(2+) and Cr~(6+) removal from pollutional water by oil exploitation.
引文
[1]晏淑梅,徐文哲,高莹.锰矿区土壤重金属污染问题与应对研究[J].中国锰业,2017,35(1):126-127.
[2]薛秀炜,罗千植.重金属污染土壤修复技术进展研究[J].中国锰业,2016,34(3):138-139.
[3]郭宁博,贾铭椿,董兴泰.“氧化还原—沉淀—超滤”法处理含铬放射性废水[J].武汉理工大学学报(交通科学与工程版),2013,37(1):196-200.
[4]沈巧莲.内电解还原—高效厌氧反应工艺处理化工生产废水[J].环境工程,2005,23(6):18-19.
[5]段杨慧.生物吸附法处理重金属离子废水研究进展[J].中国锰业,2016,34(5):100-102.
[6]张全兴,李爱民,潘丙才.离子交换与吸附树脂的发展及在工业废水处理与资源化中的应用[J].高分子通报,2015(9):21-43.
[7]靳辉,朱海霖,郭玉海,等.多效膜蒸馏技术处理电镀废水反渗透浓水的研究[J].浙江理工大学学报,2016,35(4):528-532.
[8]童蕾,曾梦玲,李民敬,等.铁锰氧化物对地下水环境中金霉素的降解[J].环境化学,2016,35(5):917-924.
[9]董明芳,范稚莲,廖国建,等.根表铁锰氧化物膜及其对水稻重金属吸收影响的研究进展[J].环境污染与防治,2016(9):111.
[10]李兴根,陆杰,黄银波.电感耦合等离子体质谱法测定有机肥料中砷、镉、铅、铬、汞的含量[J].理化检验—化学分册,2017,53(7):792-795.
[11]彭昌军,姜秀丽,计红芳,等.铁锰复合氧化物对As(Ⅲ)、As(Ⅴ)的吸附研究及其在沼液中的应用[J].化工学报,2014,65(5):1848-1855.
[2]薛秀炜,罗千植.重金属污染土壤修复技术进展研究[J].中国锰业,2016,34(3):138-139.
[3]郭宁博,贾铭椿,董兴泰.“氧化还原—沉淀—超滤”法处理含铬放射性废水[J].武汉理工大学学报(交通科学与工程版),2013,37(1):196-200.
[4]沈巧莲.内电解还原—高效厌氧反应工艺处理化工生产废水[J].环境工程,2005,23(6):18-19.
[5]段杨慧.生物吸附法处理重金属离子废水研究进展[J].中国锰业,2016,34(5):100-102.
[6]张全兴,李爱民,潘丙才.离子交换与吸附树脂的发展及在工业废水处理与资源化中的应用[J].高分子通报,2015(9):21-43.
[7]靳辉,朱海霖,郭玉海,等.多效膜蒸馏技术处理电镀废水反渗透浓水的研究[J].浙江理工大学学报,2016,35(4):528-532.
[8]童蕾,曾梦玲,李民敬,等.铁锰氧化物对地下水环境中金霉素的降解[J].环境化学,2016,35(5):917-924.
[9]董明芳,范稚莲,廖国建,等.根表铁锰氧化物膜及其对水稻重金属吸收影响的研究进展[J].环境污染与防治,2016(9):111.
[10]李兴根,陆杰,黄银波.电感耦合等离子体质谱法测定有机肥料中砷、镉、铅、铬、汞的含量[J].理化检验—化学分册,2017,53(7):792-795.
[11]彭昌军,姜秀丽,计红芳,等.铁锰复合氧化物对As(Ⅲ)、As(Ⅴ)的吸附研究及其在沼液中的应用[J].化工学报,2014,65(5):1848-1855.