Bio- and hydrochars from rice straw and pig manure: Inter-comparison

被引：145

作者：

Liu, Yuxue ^{[1
,2
]}

Yao, Shuai ^{[3
]}

Wang, Yuying ^{[1
,2
]}

Lu, Haohao ^{[1
,2
]}

Brar, Satinder Kaur ^{[4
]}

Yang, Shengmao ^{[1
,2
]}

机构：

[1] Zhejiang Acad Agr Sci, Inst Environm Resource Soil & Fertilizer, 198 Shiqiao Rd, Hangzhou 310021, Zhejiang, Peoples R China

[2] Engn Res Ctr Biochar Zhejiang Prov, Hangzhou 310021, Zhejiang, Peoples R China

[3] Zhejiang Univ Technol, Coll Environm, Hangzhou 310014, Zhejiang, Peoples R China

[4] Univ Quebec, INRS ETE, 490 Rue Couronne, Quebec City, PQ G1K 9A9, Canada

来源：

BIORESOURCE TECHNOLOGY | 2017年 / 235卷

基金：

对外科技合作项目（国际科技项目）;

关键词：

Biowaste; Biochar; Hydrochar; Pyrolysis; Hydrothermal carbonization; HYDROTHERMAL CARBONIZATION; BIOCHAR; BIOMASS; TRANSFORMATION; CONTAMINANTS; ADSORBENT; REMOVAL; POULTRY; CARBON;

D O I：

10.1016/j.biortech.2017.03.103

中图分类号：

S2 [农业工程];

学科分类号：

0828 ;

摘要：

Conversion of rice straw (RS) and pig manure (PM) into chars is a promising disposal/recycling option. Herein, pyrolysis and hydrothermal carbonization were used to produce bio- and hydrochars from RS and PM, affording lower biochar (300-700 degrees C) and hydrochar (180-300 degrees C) yields at higher temperatures within the specified range. The C contents and C/N ratios of RS chars were higher than those of PM ones, with the opposite trend observed for yield and ash content. C and ash contents increased with increasing temperature, whereas H/C, O/C, and (O + N)/C ratios decreased. The lower H/C ratio of biochars compared to that of hydrochars indicated greater stability of the former. KCl was the main inorganic fraction in RS biochars, whereas quartz was dominant in PM biochars, and albite in PM hydrochars. Thus, RS is more suitable for carbon sequestration, while PM is more suitable for use as a soil amendment substrate. (C) 2017 Elsevier Ltd. All rights reserved.

引用

页码：332 / 337

页数：6

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