Glory and misery of biochar
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- 作者：Josef Maroušek ; Marek Vochozka ; Jan Plachý…
- 关键词：Soil management ; Environmental policy ; Technology transfer ; Agriculture ; Bioeconomy
- 刊名：Clean Technologies and Environmental Policy
- 出版年：2017
- 出版时间：March 2017
- 年：2017
- 卷：19
- 期：2
- 页码：311-317
- 全文大小：
- 刊物类别：Engineering
- 刊物主题：Sustainable Development; Industrial Chemistry/Chemical Engineering; Industrial and Production Engineering; Environmental Engineering/Biotechnology; Environmental Economics;
- 出版者：Springer Berlin Heidelberg
- ISSN：1618-9558
- 卷排序：19
文摘
Biochar refers to carbon-based dusty residues obtained from biomass pyrolysis. This recently rediscovered traditional soil improver is currently being glorified for its wide portfolio of favorable environmental aspects. With its lifetime of several centuries, it is being widely accepted as a promising method of carbon sequestration. Moreover, it has been demonstrated that biochar can reduce bioavailability of some heavy metals and that it has a high adsorption capacity to persistent organic pollutants. These effects are explained by a complex of physical, chemical and biological mechanisms. Besides agriculture, it has been currently used in food and chemical industries, as well as in the building industry. Many other promising applications are under investigation. However, contrary to many enthusiastic proclamations, no revolution in agriculture or environmental management is taking place. Despite significant achievements in reduction of biochar production costs, high demand from the industry and energy sector keeps the biochar price still high, which prevents a return of the ancient farming practice on a commercial scale.