Carbon fixation of sludge biochar by hydrothermal carbonization

WANG Dingmei; WANG Yueqiang; YUAN Haoran; YU Zhen; XU Rongxian; ZHOU Shungui

doi:10.3969/j.issn.0438-1157.2013.07.043

您当前的位置：

首页 >

文章列表页 >

Carbon fixation of sludge biochar by hydrothermal carbonization

更新时间：2025-12-10

- Carbon fixation of sludge biochar by hydrothermal carbonization
- CIESC Journal Issue 7, Pages: 2625-2632(2013)
- 作者机构：
  
  1. 广东省生态环境与土壤研究所,广东,广州,510650
  2. 中国科学院广州能源研究所,广东,广州,510640
- 作者简介：
- 基金信息：
- DOI：10.3969/j.issn.0438-1157.2013.07.043
  CLC： 705
- Online First：05 July 2013，
  
  Published：05 July 2013
- 稿件说明：
移动端阅览
WANG Dingmei, WANG Yueqiang, YUAN Haoran, et al. Carbon fixation of sludge biochar by hydrothermal carbonization[J]. CIESC Journal, 2013, (7): 2625-2632.
DOI：

WANG Dingmei, WANG Yueqiang, YUAN Haoran, et al. Carbon fixation of sludge biochar by hydrothermal carbonization[J]. CIESC Journal, 2013, (7): 2625-2632. DOI： 10.3969/j.issn.0438-1157.2013.07.043.

摘要

采用水热炭化法将市政污泥与印染污泥在不同的水热温度下制备成生物炭

并着重分析了污泥生物炭的碳固定指标与水热温度的关系。结果表明

污泥泥质和水热温度对生物炭碳固定特性影响明显。市政污泥的水热炭化以脱羧为主

而印染污泥则以脱水为主。随着水热温度升高

两种生物炭中碳元素含量、炭产率和碳回收率均下降

但市政污泥生物炭中稳定碳的含量及其产率增加

稳定性提高

而印染污泥则呈现相反的变化趋势。这一结果指出

市政污泥生物炭的碳固定性能明显优于印染污泥

并且应进一步研究不同污泥泥质特征与炭化碳固定效果的关系。

Abstract

Biochar samples were prepared by hydrothermal carbonization (HTC)from municipal sewage sludge (MSS)and textile dyeing sludge (TDS)at different temperatures ranging from 150℃ to 300℃.This study focused on carbon fixation in biochar.The results showed that carbon fixation was significantly affected by sludge type and hydrothermal temperature.The HTC process of MSS was based on decarboxylation

while that of TDS was based on dehydration.Atomic ratios of biochar from MSS varied more greatly with the rise of hydrothermal temperature than those from TDS.Carbon recoveries in biochar from MSS were mainly influenced by biochar yield and decreased from 68.0% to 49.0% as the temperature increased

while those dropped from 100.0% to 76.8% for TDS due to the dominating effect of carbon content.Furthermore

the stable carbon content and its yield

recalcitrant C/total OC (RIc)of MSS biochars increased from 4.19% to 6.62%

from 123.6% to 161.2% and from 48.02% to 64.34% respectively with a rise of temperature

respectively.But the data of those indexes decreased from 3.80% to 1.86%

from 103.0% to 46.5% and from 54.26% to 47.04% respectively for TDS.Raman spectroscopy indicated that polycyclic aromatic hydrocarbon

fused aromatic ring and graphite-like microcrystalline structures led to high stability of MSS biochar.It was obvious that carbon fixation in biochar from municipal sewage sludge was better than that from textile dyeing sludge.

关键词

Keywords

references

Views

746

下载量

CSCD

Alert me when the article has been cited

提交

Tools

Publicity Resources

Effect of silicon crystallinity on electrochemical performance for chemical vapor deposited silicon-carbon composites

Effect of complex inhibitors containing ionic liquids and PVP K90 on formation of methane hydrate

Study on synergistic modification of nitrogen-doped carbon coating and Ti⁴⁺ co-doping for lithium vanadium phosphate cathode materials

Multi objective optimization of flow and heat transfer characteristics of modified manifold microchannel heat sink based on machine learning

Controlled synthesis of Bi2MoO6/MoO3 composite fibers via in-situ hydrothermal method and their high-efficiency photocatalytic hydrogen production performance

Related Author

HAN Kai

ZHONG Hua

FAN Borui

DING Weitao

LIU Denghua

XING Xianbo

YUAN Xinye

LONG Zhen

Related Institution

College of Chemistry and Chemical Engineering, Central South University

Powder Metallurgy Research Institute, Central South University

Shenghua New Materials Technology Co., Ltd.

Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences

CAS Key Laboratory of Gas Hydrate

⁰