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A review on control factors of pyrolysis technology for plants containing heavy metals.
Ecotoxicology and Environmental Safety ( IF 6.2 ) Pub Date : 2020-01-14 , DOI: 10.1016/j.ecoenv.2020.110181
Zhongchuang Liu 1 , Li-Ao Wang 2 , Hongyan Xiao 1 , Xiaowei Guo 3 , Oksana Urbanovich 4 , Liubov Nagorskaya 5 , Xiang Li 6
Affiliation  

The treatment of plants with heavy metals, whether they grow naturally in heavy metal contaminated soil or are used for remediation of heavy metal contaminated soil has attracted increasing attention. Pyrolysis is often used for the disposal of plants with heavy metals because it stabilizes heavy metals effectively and produces biochar. The resulting products of pyrolysis are in the form of solid components (char and ash), liquid components (bio-oil and tar), together with gas components (condensable and non-condensable vapor gas). The metal amount in the char or liquid and gaseous phases can be maximized or minimized via treating a plant feedstock containing heavy metals under different conditions. In addition, the potential risk of biochar produced from plants after pyrolysis becomes a research hotspot in the field of pyrolysis technology of plants containing heavy metals. Herein, we review current literatures that emphasize the influencing factors on the metal content in the biochar, liquid and gaseous phases, as well as the potential risk of biochar.

中文翻译:

含重金属植物热解技术的控制因素综述。

无论是在重金属污染的土壤中自然生长还是用于修复重金属污染的土壤,对重金属植物的处理都引起了越来越多的关注。热解通常用于处理重金属植物,因为它可以有效地稳定重金属并产生生物炭。热解生成的产物为固体成分(焦炭和灰分),液体成分(生物油和焦油)以及气体成分(可冷凝和不可冷凝的蒸气气)的形式。炭或液相和气相中的金属量可以通过在不同条件下处理含有重金属的植物原料来最大化或最小化。此外,热解后植物产生的生物炭的潜在风险成为含重金属植物热解技术领域的研究热点。本文中,我们回顾了当前的文献,这些文献强调了影响生物炭,液相和气相中金属含量以及生物炭潜在风险的因素。
更新日期:2020-01-15
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