活化剂结合套种对青葙修复重金属污染土壤影响的研究
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摘要
采用棉叶膏桐(Jatropha gossypiifolia L.)与青葙(Celosia argentea L.)进行套种,在植物种植2、3个月时施加组配活化剂,研究组配活化剂和套种处理对青葙生长和提取土壤重金属的影响。结果表明,组配活化剂可以促进青葙生长,但与棉叶膏桐套种处理时,套种影响了青葙生长。向土壤中施加组配活化剂可以明显促进青葙富集土壤中的Zn、Pb、Mn,青葙提取土壤中的Zn、Pb、Mn能力也明显增强,种植4个月后,青葙+活化剂处理青葙地上部提取Zn、Pb、Mn量较单种青葙处理分别增加59.74%、48.95%、76.16%,但与棉叶膏桐套种,青葙地上部提取Zn、Pb、Mn量下降,较青葙+活化剂处理分别降低50.05%、55.04%、51.44%。土壤中施加活化剂可增强青葙去除土壤Zn、Pb、Mn,但与棉叶膏桐套种影响了重金属去除率,修复时青葙不适合与棉叶膏桐套种。
The plot experiment was conducted to study the effects of combined activator with the co-crop of Jatropha gossypiifolia L. and Celosia argentea L. on extraction heavy metals and growth of Celosia argentea L. The combined activator was used after two months and three months planting. The results showed that combined activator could promote the growth of Celosia argentea L.,but the growth was affected by co-cropping with Jatropha gossypiifolia. The application of the combined activator to the soil could obviously promote the enrichment of Zn,Pb and Mn in soil. Zn,Pb and Mn extraction ability of Celosia argentea L. was also significantly enhanced. After four months planting. The Zn,Pb and Mn extraction content of aboveground of Celosia argentea L.+ activator treatment was more than that of mono-crop of Celosia argentea L. treatment,and the increasing rate was 59. 74%,48.95% and 76.16% respectively. But the extraction content of Zn,Pb and Mn was affected by co-cropping with Jatropha gossypiifolia,with the decreasing rate of 50.05%,55.04% and 51.44% respectively. The application of the combined activator to the soil could strengthen Celosia argentea L. to remove Zn,Pb and Mn in soil,but the removal rate was decreased by co-cropping with Jatropha gossypiifolia. Therefore,it was not suitable for co-cropping of Jatropha gossypiifolia L. and Celosia argentea L. to remediate heavy metal contaminated soil.
The plot experiment was conducted to study the effects of combined activator with the co-crop of Jatropha gossypiifolia L. and Celosia argentea L. on extraction heavy metals and growth of Celosia argentea L. The combined activator was used after two months and three months planting. The results showed that combined activator could promote the growth of Celosia argentea L.,but the growth was affected by co-cropping with Jatropha gossypiifolia. The application of the combined activator to the soil could obviously promote the enrichment of Zn,Pb and Mn in soil. Zn,Pb and Mn extraction ability of Celosia argentea L. was also significantly enhanced. After four months planting. The Zn,Pb and Mn extraction content of aboveground of Celosia argentea L.+ activator treatment was more than that of mono-crop of Celosia argentea L. treatment,and the increasing rate was 59. 74%,48.95% and 76.16% respectively. But the extraction content of Zn,Pb and Mn was affected by co-cropping with Jatropha gossypiifolia,with the decreasing rate of 50.05%,55.04% and 51.44% respectively. The application of the combined activator to the soil could strengthen Celosia argentea L. to remove Zn,Pb and Mn in soil,but the removal rate was decreased by co-cropping with Jatropha gossypiifolia. Therefore,it was not suitable for co-cropping of Jatropha gossypiifolia L. and Celosia argentea L. to remediate heavy metal contaminated soil.
引文
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[21]Ren X H,Yan R,Wang H C,et al. Citric acid and ethylene diamine tetra-acetic acid as effective washing agents to treat sewage sludge for agricultural reuse[J].Waste Management,2015,46:440-448.
[22]宋赛赛.皂角苷对重金属-PAHs复合污染土壤的强化修复作用及机理[D].杭州:浙江大学,2014.
[23]余轲,刘杰,尚伟伟,等.青葙对土壤锰的耐性和富集特征[J].生态学报,2015,35(16):5430-5436.
[2]马良,秦余丽,蔡璐瑶,等.小分子有机酸诱导野苋菜修复Pb污染土壤[J].环境工程学报,2017,11(6):3861-3865.
[3]马欢欢,乔冬梅,齐学斌,等.油葵种植条件下镉生物可利用性对柠檬酸诱导的响应研究[J].灌溉排水学报,2017,36(4):9-14.
[4]刘金,殷宪强,孙慧敏,等.EDDS与EDTA强化苎麻修复镉铅污染土壤[J].农业环境科学学报,2015,34(7):1293-1300.
[5]马云龙,曾清如,胡浩,等.低分子有机酸对土壤中重金属的解吸及影响因素[J].土壤通报,2008,39(6):1419-1423.
[6]奉献.螯合诱导植物修复锰矿尾矿重金属污染土壤的研究[D].长沙:湖南大学,2014.
[7]樊扬帆,刘云国,龚小敏,等.外源螯合剂CA和NTA对苎麻修复铅镉复合污染土壤的影响[J].环境工程学报,2016,10(8):4547-4552.
[8]卫泽斌,吴启堂,龙新宪,等.可生物降解螯合剂GLDA和磷素活化剂促进东南景天提取土壤重金属的潜力[J].农业环境科学学报,2014,33(7):1402-1404.
[9]袁江,李晔,许剑臣,等.可生物降解螯合剂GLDA和植物激素共同诱导植物修复重金属污染土壤研究[J].武汉理工大学学报,2016,38(2):82-86,92.
[10]张家伟.螯合剂和表面活性剂强化巨菌草修复铅镉复合污染土壤研究[D].广州:广东工业大学,2016.
[11]焦永康.亚氨基二琥珀酸盐作为肥料增效剂的应用:ZL201510046910.8[P].2015-05-06.
[12]吴长彧,王亚权,李静.绿色螯合剂亚氨基二琥珀酸的合成及螯合性能[J].化学工业与工程,2007,24(2):121-124.
[13]叶涛,黄丽,张克强,等.皂角苷和柠檬酸联合对污泥中Cu、Pb和Zn的去除及其稳定性特征[J].环境科学,2017,38(11):4850-4859.
[14]吴烈善,吕宏虹,苏翠翠,等.环境友好型淋洗剂对重金属污染土壤的修复效果[J].环境工程学报,2014,8(10):4486-4491.
[15]许丹丹,许中坚,邱喜阳,等.重金属污染土壤的柠檬酸-皂素联合修复研究[J].水土保持学报,2013,27(6):57-61.
[16]秦丽,湛方栋,祖艳群,等.土荆芥和蚕豆/玉米间作系统中Pb、Cd、Zn的累积特征研究[J].云南农业大学学报:自然科学版,2017,32(1):153-160.
[17]陈建军,修珩,李元.小花南芥与玉米间作对Pb的吸收累积特征[J].环境科学与技术,2016,39(11):63-67.
[18]向言词,冯涛,刘炳荣,等.污泥改良锰矿尾渣对4种花卉植物生长及其富集重金属的影响[J].农业环境科学学报,2009,28(2):244-250.
[19]鲁如坤.土壤农业化学分析方法[M].北京:中国农业科技出版社,2000.
[20]Luo C L,Shen Z G,Li X D,et al. Enhanced phytoextraction of Pb and other metals from artificially contaminated soils through the combined application of EDTA and EDDS[J]. Chemosphere,2006,63(10):1773-1784.
[21]Ren X H,Yan R,Wang H C,et al. Citric acid and ethylene diamine tetra-acetic acid as effective washing agents to treat sewage sludge for agricultural reuse[J].Waste Management,2015,46:440-448.
[22]宋赛赛.皂角苷对重金属-PAHs复合污染土壤的强化修复作用及机理[D].杭州:浙江大学,2014.
[23]余轲,刘杰,尚伟伟,等.青葙对土壤锰的耐性和富集特征[J].生态学报,2015,35(16):5430-5436.
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