TY  - JOUR
N2  - Biochar is a stabilized, carbon-rich by-product derived from pyrolysis of biomass. Recently, biochar has received extensive attentions because of its multi-functionality for agricultural and environmental applications. Biochar can contribute to sequestration of atmosphere carbon, improvement of soils quality, and mitigation of environmental contaminations. The capability of biochar for specific application is determined by its properties which are predominantly controlled by source material and pyrolysis route variables. The biochar sorption potential is a function of its surface area, pores volume, ash contents, and functional groups. The impacts of each production factors on these characteristics of biochar need to be well-understood to design efficient biochars for pesticides removal. The effects of biomass type on biochar sorptive properties are determined by relative amounts of its lingo-cellulosic compounds, minerals content, particles size, and structure. The highest treatment temperature is the most effective pyrolysis factor in the determination of biochar sorption behavior. The expansion of micro-porosity and surface area and also increase of biochar organic carbon content and hydrophobicity mostly happen by pyrolysis peak temperature rise. These changes make biochar suitable for immobilization of organic contaminants. Heating rate, gas pressure, and reaction retention time after the pyrolysis temperatures are sequentially important pyrolysis variables effective on biochar sorptive properties. This review compiles the available knowledge about the impacts of production variables on biochars sorptive properties and discusses the aging process as the main factor in post-pyrolysis alterations of biochars sorption capacity. The drawbacks of biochar application in the environment are summarized as well in the last section. © 2015, Springer-Verlag Berlin Heidelberg.
IS  - 18
ID  - scholars5741
KW  - adsorption; agrochemical; carbon sequestration; charcoal; efficiency measurement; immobilization; organic matter; organic pollutant; pesticide; physicochemical property; pollutant removal; pollution control; pyrolysis; soil quality; temperature effect
KW  -  biochar; charcoal; pesticide; pollutant
KW  -  adsorption; chemistry; isolation and purification; pollutant
KW  -  Adsorption; Charcoal; Environmental Pollutants; Pesticides
A1  - Yavari, S.
A1  - Malakahmad, A.
A1  - Sapari, N.B.
JF  - Environmental Science and Pollution Research
UR  - https://www.scopus.com/inward/record.uri?eid=2-s2.0-84941176547&doi=10.1007%2fs11356-015-5114-2&partnerID=40&md5=4d71e5a8171e83439868e80526c3c93b
VL  - 22
Y1  - 2015///
N1  - cited By 90
TI  - Biochar efficiency in pesticides sorption as a function of production variablesâ??a review
SP  - 13824
AV  - none
EP  - 13841
PB  - Springer Verlag
SN  - 09441344
ER  -