Effects of feedstock type and slow pyrolysis temperature in the production of biochars on the removal of cadmium and nickel from water

被引：104

作者：

Higashikawa, Fabio Satoshi ^{[1
]}

Conz, Rafaela Feola ^{[2
]}

Colzato, Marina ^{[2
]}

Pellegrino Cerri, Carlos Eduardo ^{[2
]}

Ferracciu Alleoni, Luis Reynaldo ^{[2
]}

机构：

[1] Santa Catarina State Agr Res & Rural Extens Agcy, Ituporanga Agr Expt Stn EEIT, POB 121, BR-88400000 Ituporanga, SC, Brazil

[2] Univ Sao Paulo, Coll Agr Luiz de Queiroz, Dept Soil Sci, POB 09, BR-13418900 Piracicaba, SP, Brazil

来源：

JOURNAL OF CLEANER PRODUCTION | 2016年 / 137卷

关键词：

Organic wastes; Sorbent; Contaminant management; Pollutants; Metals; ADSORPTIVE PROPERTIES; AQUEOUS-SOLUTIONS; HEAVY-METALS; IMPACT; CARBON; COPPER; IONS; ZINC; SOIL;

D O I：

10.1016/j.jclepro.2016.07.205

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

Biochar is a universal sorbent suitable in strategies for removing contaminants from both soil and water. This study evaluated the potential of four biochars each produced from a different feedstock for removing Cd and Ni from water. Chicken manure mixed with sawdust (CM), sugarcane straw (SS), rice husk (RH) and sawdust (SW) were used to produce biochar through slow pyrolysis at two temperatures: 350 and 650 degrees C. The percentage removed and the removal capacity of Cd and Ni from water by biochars at both temperatures used in the pyrolysis followed the order: CM > SS > RH > SW. The removal percentage ranged from 31 to 98% for Cd and 24-72% for Ni, while removal capacity ranged from 0.3 to 12.5 mg g(-1) for Cd and 0.2-10.9 mg g(-1) for Ni. The type of feedstock had greater influence on the performance of biochars for removing metals than the pyrolysis temperature. (C) 2016 Elsevier Ltd. All rights reserved.

引用

页码：965 / 972

页数：8

共 40 条

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