PDF Download

[1]LIU Yanli,ZHOU Beibei,WANG Quanjiu,et al.Effects of Nano-carbon on the Migration of Cu(Ⅱ) in Loessal Soil[J].Research of Soil and Water Conservation,2016,23(01):62-66.

Copy

Effects of Nano-carbon on the Migration of Cu(Ⅱ) in Loessal Soil

Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume: 23 Number of periods: 2016 01 Page number: 62-66 Column: Public date: 2016-02-28

Title:: Effects of Nano-carbon on the Migration of Cu(Ⅱ) in Loessal Soil

Author(s):: LIU Yanli¹, ZHOU Beibei¹, WANG Quanjiu^1,2, TAN Shuai¹; 1. College of Water Conservancy and Hydropower, State Key Laboratory Base of Eco-Hydraulic Engineering in Arid Area, Xi’an University of Technology, Xi’an 710048, China;
2. State Key Laboratory of Soil Erosion and Dryland Farming on the Losses Plateau, Institute of Soil and Water Conservation, Northwest A & F University, Yangling, Shaanxi 712100, China

Keywords:: nano-carbon; Cu (Ⅱ); the cumulative infiltration; the wetting front; isothermal adsorption curve

CLC:: S153

DOI:: -

Abstract:: Heavy metal pollution management is very important for the environmental improvement. Based on the disturbed one-dimensional soil column experiments, effect of nano-carbon on Cu (Ⅱ) migration process was studied in the lab. The main results showed as follows. (1)At the same equilibrium concentration, with the increase of nano-carbon contents, the Cu(Ⅱ) adsorption quantity increased. The maximum adsorption (S_m) fitted by the Langmuir equation was increased with the increase of nano-carbon contents. (2) Philip Formula could better describe the Cu(NO₃)₂ solution infiltration process for all the soil columns mixed well with the nano-carbon and nano-carbon applied at the top soil, as well as the wetting front advance curve followed the power function. (3) Cu(NO₃)₂ solution infiltration amount was reduced with the increase of nano-carbon content, while nano-carbon contents were low (0.1%, 0.5%, 1%), little effect on the cumulative infiltration was found between the nano-carbone mixed well with the soil and the nano-carbon applied at the subsurface. But when the nano-carbon content was as high as 5%, the variation was obvious, of which the nano-carbon mixed well with soil was significantly smaller. (4) Compared with the control soil, the nano-carbon could reduce the soil Cu(Ⅱ) content with these two methods and Cu(Ⅱ) contents in the surface soil were obviously higher than those in the deep soil. While nano-carbon content was low (0.1%, 0.5%, 1%), the difference of surface soil was small and little effect on the Cu(Ⅱ) content was found between the nano-carbon mixed well with the soil and the nano-carbon applied at the subsurface, while nano-carbon content was high (5%), the Cu(Ⅱ) content of surface soil of nano-carbon mixed with soil was significantly higher than that treated with nano-carbon applied at the top soil, but the Cu(Ⅱ) content in deeper soil presented little difference. As a result, nano-carbon has a good adsorption effect to Cu(Ⅱ), furthermore, nano-carbon applied at the top soil is an economic and effective way to absorb more Cu(Ⅱ).

References:: [1] 宋伟,陈百明,刘琳.中国耕地土壤重金属污染概况[J].水土保持研究,2013,20(2):293-298.
[2] 樊婷,叶文玲,陈海燕,等.农田土壤重金属污染状况及修复技术研究[J].生态环境学报,2013,22(10):1727-1736.
[3] 张溪,周爱国,甘义群,等.金属矿山土壤重金属污染生物修复研究进展[J].环境科学与技术,2010,33(3):106-112.
[4] 刘胜洪,王桂莹,颜燕如,等.3种草本植物的抗旱性及重金属吸附能力研究[J].水土保持研究,2015,22(2):284-289.
[5] 刘艳,梁沛,郭丽,等.负载型纳米二氧化钛对重金属离子吸附性能的研究[J].化学学报,2005,63(4):312-316.
[6] 方靖,周艳萍,温蓓.二氧化钛纳米颗粒对铜在土壤中运移的影响[J].土壤学报,2011,48(3):549-556.
[7] Liang B, Lehmann J, Solomon D, et a1. Black carbon increases cation exchange capacity in soils[J]. Soil Science Society of American Journal,2006,70(5):1719-1730.
[8] Khaydarov R A, Khaydarov R R, Gapurova O. Water purification from metal ions using carbon nanoparticle-conjugated polymer nanocomposites[J]. Water Research,2010,44(6):1927-1933.
[9] 施踏青.纳米二氧化钛材料对金属离子吸附行为的研究及其应用[D].武汉:华中师范大学,2003.
[10] 肖亚兵,钱沙华,黄淦泉,等.纳米二氧化钛对砷(Ⅲ)和砷(V)吸附性能的研究[J].分析科学学报,2003,19(2):172-174.
[11] Yuan C, Lien H L. Removal of Arsenale from aqueous solution using nanoscale iron particles[J]. Water Quality Research Journal of Canada,2006,41(2):210-215.
[12] Liu R, Zhao D. Insituimmobilization of Cu(Ⅱ) in soils using a new class of iron phosphate nanoparticles[J]. Chemosphere,2007,68(10):1867-1876.
[13] 林道辉,冀静,田小利等.纳米材料的环境行为与生物毒性[J].科学通报,2009,54(23):3590-3604.
[14] Cornelissen G, Gustafsson O, Bucheli D, et al. Extensive sorption of organic compounds to black carbon, coal, and kerogen in sediments and soils:Mechanisms and consequences for distribution, bioaccumulation and biodegradation[J]. Environmental Science and Technology,2005,39(18):6881-6895.
[15] 邵明安,王全九,黄明斌.土壤物理学[M].北京:高等教育出版社,2006.
[16] 胡红青,陈松,李妍,等.几种土壤的基本理化性质与Cu²⁺吸附的关系[J].生态环境,2004,13(4):544-545.
[17] 刘庆玲,徐绍辉.不同质地土壤中铜离子运移阻滞因子研究[J].土壤学报,2015,24(6):930-935.
[18] 谭帅,周蓓蓓,王全九.纳米碳对扰动黄绵土水分入渗过程的影响[J].土壤学报,2014,51(2):263-269.

Similar References:

Memo

Last Update: 1900-01-01