Physicochemical properties of biochar produced from aerobically composted swine manure and its potential use as an environmental amendment

被引：126

作者：

Meng, Jun ^{[1
]}

Wang, Lili ^{[1
]}

Liu, Xingmei ^{[1
]}

Wu, Jianjun ^{[1
]}

Brookes, Philip C. ^{[1
]}

Xu, Jianming ^{[1
]}

机构：

[1] Zhejiang Univ, Zhejiang Prov Key Lab Subtrop Soil & Plant Nutr, Coll Environm & Nat Resources Sci, Hangzhou 310058, Zhejiang, Peoples R China

来源：

BIORESOURCE TECHNOLOGY | 2013年 / 142卷

关键词：

Biochar; Aerobic composting; Pyrolysis; Swine manure; Adsorption; PYROLYSIS TEMPERATURE; LITTER BIOCHARS; SOIL AMENDMENTS; SLUDGE; ADSORPTION; PERTINENT; PHOSPHATE; ATRAZINE; IMPACT; WASTES;

D O I：

10.1016/j.biortech.2013.05.086

中图分类号：

S2 [农业工程];

学科分类号：

0828 ;

摘要：

Biochars derived from the pyrolysis, at 400 and 700 degrees C, respectively, of fresh (TO), 21d (T1) and 84d (T2) aerobically composted swine manure, were characterized and investigated for their potential use as environmental amendments. The biochar yield significantly increased following composting, but decreased with increased temperature. The ash content, surface area (SA), pH, electrical conductivity (EC), mineral nutrients, total heavy metals (except Cd) and available As, Cu, Mn and Zn concentrations of biochar produced at 700 degrees C were higher than in biochar produced at 400 degrees C, whereas the volatile matter, higher heating value (HHV) and elemental composition were decreased. The maximum Cu(II) adsorption capacity was 20.11 mg g(-1) by biochar produced from T2 at 400 degrees C. The pyrolysis of 84d aerobically composted swine manure to produce biochar at 400 degrees C could be used as a soil amendment, or as an adsorbent for the removal heavy metal ions from wastewater. (C) 2013 Elsevier Ltd. All rights reserved.

引用

页码：641 / 646

页数：6

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