CSIR-National Environmental and Engineering Research Institute (CSIR-NEERI), Nagpur 440 020, India.
James Watt School of Engineering, University of Glasgow, Glasgow G12 8QQ, United Kingdom.
Bioresour Technol. 2021 Jan;320(Pt A):124278. doi: 10.1016/j.biortech.2020.124278. Epub 2020 Oct 19.
The aim of this work was to study the pyrolysis of waste biomass and plastics and use the produced biochar for the removal of heavy metals from aqueous solution. The batch experiments of Fe, Ni, Cu, Cr, Cd and Pb with biochars and plastic chars were carried for determining the effects of various experimental parameters (feedstock, contact time, adsorbent dose, pH and pyrolysis temperature). The isothermal sorption models demonstrated that the sorption capacities of biochars are higher in comparison to the plastic chars. The maximum removal efficiency shown by biochars and plastic chars at pH 4 was 99.86% and 99.93%, respectively. Both the carbon materials are thereby recognized as an environment-friendly and efficient pollutant control material at various studied parameters.
本工作旨在研究废生物质和塑料的热解，并利用所产生的生物炭去除水溶液中的重金属。通过批量实验研究了 Fe、Ni、Cu、Cr、Cd 和 Pb 与生物炭和塑料炭的相互作用，以确定各种实验参数（原料、接触时间、吸附剂剂量、pH 值和热解温度）的影响。等温吸附模型表明，生物炭的吸附容量高于塑料炭。在 pH 值为 4 时，生物炭和塑料炭的最大去除效率分别为 99.86%和 99.93%。因此，在各种研究参数下，这两种碳材料都被认为是一种环保且高效的污染物控制材料。
