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Beneficial effects of tobacco biochar combined with mineral additives on (im)mobilization and (bio)availability of Pb, Cd, Cu and Zn from Pb/Zn smelter contaminated soils.
Ecotoxicol Environ Saf. 2017 Nov; 145:528-538.EE

Abstract

The efficacy of tobacco biochar (TB) alone and in combined with mineral additives: Ca-hydroxide (CH), Ca-bentonite (CB) and natural zeolite (NZ), on immobilization of Pb, Cd, Cu and Zn, via reduce its (bio) availability to plants were investigated. The soils were collected from Tongguan contaminated (TG-C), Fengxian heavily contaminated (FX-HC) and Fengxian lightly contaminated (FX-LC) fields, Shaanxi province, China. The contaminated top soils were treated with low-cost amendments with an application rate of 1% and cultivated by Chinese cabbage (Brassica campestris L.) under greenhouse condition. Results showed that the all amendments (p < 0.05) potentially maximum reduced the DTPA-extractable Pb 82.53, Cd 31.52 and Cu 75.0% with TB + NZ in FX-LC soil, while in case of Zn 62.21% with TB + CH in FX-HC soil than control. The addition of amendments clearly increased dry biomass of Brassica campestris L. as compared with un-amended treatment (except TB + CH). Furthermore, these amendments markedly increased the uptake by plant shoot viz, Cd 10.51% with TB alone and 11.51% with TB + CB in FX-HC soil, similarly in FX-LC Cd increased 5.15% with TB + CH and 22.19% with TB + NZ, respectively. In same trend the Cu uptake in plant shoot was 19.30% with TB + CH in TG-C, whereas 43.90 TB + CH and 19.24% with TB + NZ in FX-LC soil. On the other hand as compared to control Cu accumulation in plant root was observed by TB, TB + CH and TB + CB treatments, while maximum uptake was 62.41% with TB + CH in TG-C soil. Consequently, except TB + CH treatment the chlorophyll content potentially increased in all amendment than control treatment, because of changes in soil EC, pH but increased CEC values after application of amendments. The results of this pot experiment are promising but they will further need to be confirmed with long-term field experiments.

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Authors+Show Affiliations

College of Natural Resources and Environment, Northwest A&F University, Yangling, Shannxi 712100, China.

College of Natural Resources and Environment, Northwest A&F University, Yangling, Shannxi 712100, China. Electronic address: zhangzq58@126.com.

College of Natural Resources and Environment, Northwest A&F University, Yangling, Shannxi 712100, China.

College of Natural Resources and Environment, Northwest A&F University, Yangling, Shannxi 712100, China.

Centre for Environmental Sciences, University of Sindh, Jamshoro 76080, Pakistan.

College of Natural Resources and Environment, Northwest A&F University, Yangling, Shannxi 712100, China; Department of Biotechnology, Amicable Knowledge Solution University, Satna, India.

College of Natural Resources and Environment, Northwest A&F University, Yangling, Shannxi 712100, China.

College of Natural Resources and Environment, Northwest A&F University, Yangling, Shannxi 712100, China.

College of Agronomy, Northwest A&F University, Yangling, Shannxi 712100, China.

College of Natural Resources and Environment, Northwest A&F University, Yangling, Shannxi 712100, China.

College of Natural Resources and Environment, Northwest A&F University, Yangling, Shannxi 712100, China.

College of Natural Resources and Environment, Northwest A&F University, Yangling, Shannxi 712100, China.

MeSH

BentoniteBiological AvailabilityBiomassBrassicaCharcoalChinaMetals, HeavySoilSoil PollutantsTobaccoZeolites

Pub Type(s)

Journal Article

Language

eng

PubMed ID

28787614

Citation

Lahori, Altaf Hussain, et al. "Beneficial Effects of Tobacco Biochar Combined With Mineral Additives On (im)mobilization and (bio)availability of Pb, Cd, Cu and Zn From Pb/Zn Smelter Contaminated Soils." Ecotoxicology and Environmental Safety, vol. 145, 2017, pp. 528-538.

Lahori AH, Zhang Z, Guo Z, et al. Beneficial effects of tobacco biochar combined with mineral additives on (im)mobilization and (bio)availability of Pb, Cd, Cu and Zn from Pb/Zn smelter contaminated soils. Ecotoxicol Environ Saf. 2017;145:528-538.

Lahori, A. H., Zhang, Z., Guo, Z., Li, R., Mahar, A., Awasthi, M. K., Wang, P., Shen, F., Kumbhar, F., Sial, T. A., Zhao, J., & Guo, D. (2017). Beneficial effects of tobacco biochar combined with mineral additives on (im)mobilization and (bio)availability of Pb, Cd, Cu and Zn from Pb/Zn smelter contaminated soils. Ecotoxicology and Environmental Safety, 145, 528-538. https://doi.org/10.1016/j.ecoenv.2017.07.071

Lahori AH, et al. Beneficial Effects of Tobacco Biochar Combined With Mineral Additives On (im)mobilization and (bio)availability of Pb, Cd, Cu and Zn From Pb/Zn Smelter Contaminated Soils. Ecotoxicol Environ Saf. 2017;145:528-538. PubMed PMID: 28787614.

* Article titles in AMA citation format should be in sentence-case

TY - JOUR T1 - Beneficial effects of tobacco biochar combined with mineral additives on (im)mobilization and (bio)availability of Pb, Cd, Cu and Zn from Pb/Zn smelter contaminated soils. AU - Lahori,Altaf Hussain, AU - Zhang,Zengqiang, AU - Guo,Zhanyu, AU - Li,Ronghua, AU - Mahar,Amanullah, AU - Awasthi,Mukesh Kumar, AU - Wang,Ping, AU - Shen,Feng, AU - Kumbhar,Farhana, AU - Sial,Tanveer Ali, AU - Zhao,Junchao, AU - Guo,Di, Y1 - 2017/08/05/ PY - 2017/06/14/received PY - 2017/07/27/revised PY - 2017/07/31/accepted PY - 2017/8/9/pubmed PY - 2017/12/9/medline PY - 2017/8/9/entrez KW - Bio-availability KW - Biochar KW - Heavy metals KW - Immobilization KW - Mineral additives SP - 528 EP - 538 JF - Ecotoxicology and environmental safety JO - Ecotoxicol Environ Saf VL - 145 N2 - The efficacy of tobacco biochar (TB) alone and in combined with mineral additives: Ca-hydroxide (CH), Ca-bentonite (CB) and natural zeolite (NZ), on immobilization of Pb, Cd, Cu and Zn, via reduce its (bio) availability to plants were investigated. The soils were collected from Tongguan contaminated (TG-C), Fengxian heavily contaminated (FX-HC) and Fengxian lightly contaminated (FX-LC) fields, Shaanxi province, China. The contaminated top soils were treated with low-cost amendments with an application rate of 1% and cultivated by Chinese cabbage (Brassica campestris L.) under greenhouse condition. Results showed that the all amendments (p < 0.05) potentially maximum reduced the DTPA-extractable Pb 82.53, Cd 31.52 and Cu 75.0% with TB + NZ in FX-LC soil, while in case of Zn 62.21% with TB + CH in FX-HC soil than control. The addition of amendments clearly increased dry biomass of Brassica campestris L. as compared with un-amended treatment (except TB + CH). Furthermore, these amendments markedly increased the uptake by plant shoot viz, Cd 10.51% with TB alone and 11.51% with TB + CB in FX-HC soil, similarly in FX-LC Cd increased 5.15% with TB + CH and 22.19% with TB + NZ, respectively. In same trend the Cu uptake in plant shoot was 19.30% with TB + CH in TG-C, whereas 43.90 TB + CH and 19.24% with TB + NZ in FX-LC soil. On the other hand as compared to control Cu accumulation in plant root was observed by TB, TB + CH and TB + CB treatments, while maximum uptake was 62.41% with TB + CH in TG-C soil. Consequently, except TB + CH treatment the chlorophyll content potentially increased in all amendment than control treatment, because of changes in soil EC, pH but increased CEC values after application of amendments. The results of this pot experiment are promising but they will further need to be confirmed with long-term field experiments. SN - 1090-2414 UR - https://www.unboundmedicine.com/medline/citation/28787614/Beneficial_effects_of_tobacco_biochar_combined_with_mineral_additives_on__im_mobilization_and__bio_availability_of_Pb_Cd_Cu_and_Zn_from_Pb/Zn_smelter_contaminated_soils_ L2 - https://linkinghub.elsevier.com/retrieve/pii/S0147-6513(17)30492-X DB - PRIME DP - Unbound Medicine ER -