文献类型： 外文期刊
作者： Deng, Hui 1 ; Yu, Huamei 2 ; Chen, Miao 3 ; Ge, Chengjun 1 ;
作者机构： 1.Minist Agr, Key Lab Plant Nutr & Fertilizer, Beijing 100081, Peoples R China
2.Hainan Univ, Dept Environ Sci, Haikou, Peoples R China
3.Cihina Univ Mining & Technol, Sch Chem & Environ Engn, Beijing, Peoples R China
4.Chinese Acad Tropical Agr Sci, Haikou, Peoples R China
关键词： Biochar;Tropical soils;Sorption-desorption isotherm;Atrazine
期刊名称：SELECTED PROCEEDINGS OF THE EIGHTH INTERNATIONAL CONFERENCE ON WASTE MANAGEMENT AND TECHNOLOGY
ISSN： 1022-6680
年卷期： 2014 年 878 卷
页码：
收录情况： SCI
摘要： On the basis of OCED Guideline 106, batch sorption studies were employed to reveal sorption of atrazine by amending biochar in tropical soils, namely, laterite, paddy soil and dry red soil. Biochar, a micro-porosity and great surface product, was generated by pyrolysis of manioc wastes at 750 degrees C(BC750) and modified substances(MC750) were produced by loading Fe3+. The mechanism of sorption was examined by charactering BC750 and MC750. In this study, carbonization can improve aromaticity, specific surface and alkaline groups of biomass. The isotherms of atrazine in soil seemed closed to linear with partition, whereas the sorption of atrazine in biochar-added soil was a mainly pore-filling mechanism to exhibit nonlinearity. Temkin model was satisfactorily analyzed the sorption isotherm of atrazine by BC750/MC750 into soil with R-2 between 0.92-0.998. HI of all the sorbents were greater than 1, which indicated that the desorption rate was higher than the sorption rate. BC750/MC750 had a greater affinity for atrazine in soil than that of unamended soil. And the sorption capacity of unmodified biochar is slightly less than modified biochar, but the desorbed amounts of atrazine are less. Results indicated that biochars derived from agricultural wastes can play a crucial role in the removal of hydrophobic organic chemicals.
- 相关文献
作者其他论文 更多>>
-
Colonization time of plastisphere drives the dynamics of organic carbon stability and microbial communities in seagrass bed sediments
作者：Hou, Shuailing;Wang, Jun;Feng, Dan;Fan, Jinluo;Luo, Mingguang;Deng, Hui;Yang, Xing;Luo, Jiwei;Zhao, Yuanyuan;Ge, Chengjun;Hou, Shuailing;Wang, Jun;Feng, Dan;Fan, Jinluo;Luo, Mingguang;Deng, Hui;Yang, Xing;Luo, Jiwei;Zhao, Yuanyuan;Ge, Chengjun;Hou, Shuailing;Wang, Jun;Feng, Dan;Fan, Jinluo;Luo, Mingguang;Deng, Hui;Yang, Xing;Luo, Jiwei;Zhao, Yuanyuan;Ge, Chengjun;Wu, Dongming;Chen, Shiquan;Feng, Dan
关键词：Plastisphere; Seagrass bed sediments; Organic carbon stability; Colonization time; Bacterial community
-
Vertical Profile Characteristics of Dissolved Organic Matter Biochemistry in the Tropical Reservoir Shaped by Hydrodynamic Forces
作者：Liu, Zongyue;Chen, Miao;Wang, Han;Ning, Ziyu;Zhang, Wen;Liu, Yuqin;Liu, Zongyue;Chen, Miao;Liu, Huiran;Wang, Han;Ning, Ziyu;Zhang, Wen;Liu, Yuqin;Liu, Zongyue;Chen, Miao;Liu, Huiran;Wang, Han;Ning, Ziyu;Zhang, Wen;Liu, Yuqin;Liu, Zongyue;Chen, Miao;Liu, Huiran;Wang, Han;Ning, Ziyu;Zhang, Wen;Liu, Yuqin;Liu, Zongyue;Chen, Miao;Liu, Huiran;Wang, Han;Ning, Ziyu;Zhang, Wen;Liu, Yuqin;Tang, Min
关键词：hydrodynamic force; tropical reservoir; dissolved organic matter; biochemistry; spatial distribution
-
Mechanistic insights into N2O emission mitigation by nitrification inhibitor dicyandiamide (DCD) in a tropical sandy soil after six years of manure amendment
作者：Fan, Changhua;Wang, Danfeng;Gao, Wenlong;Liu, Yuqin;Wu, Xiaolong;Liu, Huiran;Ning, Ziyu;Li, Qinfen;Chen, Miao;Fan, Changhua;Gao, Wenlong;Liu, Yuqin;Wu, Xiaolong;Liu, Huiran;Ning, Ziyu;Li, Qinfen;Chen, Miao;Fan, Changhua;Gao, Wenlong;Liu, Yuqin;Wu, Xiaolong;Liu, Huiran;Ning, Ziyu;Li, Qinfen;Chen, Miao;Wang, Danfeng;Duan, Pengpeng
关键词：greenhouse gas; high-throughput sequencing; isotopocule mapping; tropical vegetable soil; organic amendment
-
Impact of large-scale climate indices on total nitrogen concentrations in drinking water sources cannot be overlooked
作者：Li, Ning;Yong, Jiayi;Ning, Ziyu;Chen, Miao;Li, Ning;Zhang, Zheng;Chen, Yaxiong;Xiong, Shengwu;Li, Ning;Zhang, Zheng;Chen, Yaxiong;Xiong, Shengwu;Li, Ning;Yong, Jiayi;Ning, Ziyu;Chen, Miao;Xiao, Jingfeng;Bai, Rui;Xin, Shuli
关键词：Water quality; Machine learning algorithms; Harmonized Landsat and Sentinel-2 (HLS); Climate drivers; Spatiotemporal variability
-
The structural transformation reversibility of biogas slurry derived dissolved organic matter and its binding properties with norfloxacin under temperature fluctuation
作者：Fan, Jinluo;Ge, Chengjun;Li, Ailing;Ren, Guoliang;Deng, Hui;Luo, Jiwei;Zhao, Yuanyuan;Li, Jiatong;Feng, Dan;Yu, Huamei;He, Yanhu;Fan, Jinluo;Ge, Chengjun;Li, Ailing;Ren, Guoliang;Deng, Hui;Luo, Jiwei;Zhao, Yuanyuan;Li, Jiatong;Feng, Dan;Yu, Huamei;Fan, Jinluo;Ge, Chengjun;Li, Ailing;Ren, Guoliang;Deng, Hui;Luo, Jiwei;Zhao, Yuanyuan;Li, Jiatong;Feng, Dan;Yu, Huamei;Wu, Dongming;Wu, Dongming
关键词：DOM; Antibiotic; Structural transformation; Temperature; Spectral analysis; 2D-COS
-
Enhanced mitigation of N2O and NO emissions through co-application of biochar with nitrapyrin in an intensive tropical vegetable field
作者：Fan, Changhua;Leng, Youfeng;Wang, Xiaotong;Wang, Junjiao;Fu, Yajun;Huang, Xiaomin;Gao, Wenlong;Zhang, Wen;Liu, Huiran;Ning, Ziyu;Li, Qinfen;Chen, Miao;Fan, Changhua;Gao, Wenlong;Zhang, Wen;Liu, Huiran;Ning, Ziyu;Li, Qinfen;Chen, Miao;Fan, Changhua;Gao, Wenlong;Zhang, Wen;Liu, Huiran;Ning, Ziyu;Li, Qinfen;Chen, Miao;Wang, Xiaotong;Fu, Yajun;Wang, Junjiao;Huang, Xiaomin;Fan, Changhua;Chen, Miao
关键词：Gaseous nitrogen (N) emission; Biochar; Nitrification inhibitor; Tropical vegetable ecosystem
-
Effects of polypropylene microplastics on carbon dioxide dynamics in intertidal mangrove sediments
作者：Lin, Xubing;Lin, Shuying;Peng, Licheng;Cheng, Xing;Xie, Shiyu;Bao, Ruiqi;Su, Yuanyuan;Mehmood, Tariq;Lin, Xubing;Lin, Shuying;Peng, Licheng;Cheng, Xing;Xie, Shiyu;Bao, Ruiqi;Su, Yuanyuan;Mehmood, Tariq;Chen, Miao
关键词：Microplastics; Micro -sized polypropylene (mPP); Mangrove intertidal zone; CO 2 emissions; Microbial compositions
