[1]杨艳琴,崔敏华,任屹罡,等.热解温度诱导下污泥生物炭特性和吸附能力相关性[J].深圳大学学报理工版,2020,37(2):194-201.[doi:10.3724/SP.J.1249.2020.02194]
 YANG Yanqin,CUI Minhua,et al.Correlations between the physicochemical characteristics and adsorption capacity of sludge-based biochar induced at pyrolysis temperature[J].Journal of Shenzhen University Science and Engineering,2020,37(2):194-201.[doi:10.3724/SP.J.1249.2020.02194]
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热解温度诱导下污泥生物炭特性和吸附能力相关性()
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《深圳大学学报理工版》[ISSN:1000-2618/CN:44-1401/N]

卷:
第37卷
期数:
2020年第2期
页码:
194-201
栏目:
环境与能源
出版日期:
2020-03-16

文章信息/Info

Title:
Correlations between the physicochemical characteristics and adsorption capacity of sludge-based biochar induced at pyrolysis temperature
文章编号:
202002012
作者:
杨艳琴12 崔敏华13 任屹罡2 郭建超2 刘和13
1) 江南大学环境与土木工程学院,江苏无锡 214122
2) 郑州轻工业大学材料与化学工程学院,环境污染治理与生态修复河南省协同创新中心,河南郑州450002
3) 江苏省水处理技术与材料协同创新中心,江苏苏州215009
Author(s):
YANG Yanqin1 2 CUI Minhua1 3 REN Yigang2 GUO Jianchao2 and LIU He1 3
1) College of Environment and Civil Engineering, Jiangnan University, Wuxi 214122, Jiangsu Province, P.R.China
2) School of Material and Chemical Engineering, Zhengzhou University of Light Industry, Collaborative Innovation Center of Environmental Pollution Control and Ecological Restoration of Henan Province, Zhengzhou 450002, Henan Province, P.R.China
3) Jiangsu Collaborative Innovation Center of Technology and Material of Water Treatment, Suzhou 215009, Jiangsu Province, P.R.China
关键词:
热解温度城市污泥污泥生物炭罗丹明B亚甲蓝吸附能力
Keywords:
pyrolysis temperature sewage sludge sludge biochar rhodamine B methylene blue adsorption capacity
分类号:
S141.6
DOI:
10.3724/SP.J.1249.2020.02194
文献标志码:
A
摘要:
为探讨不同热解温度下污泥生物炭性质与其对染料的吸附能力之间的内在关系,以城市污泥为原料,通过热解法在不同温度下(300~800 ℃)制备污泥生物炭,研究不同生物炭的特性及其对罗丹明B和亚甲蓝的吸附能力,并通过相关性分析探讨影响生物炭吸附能力的主要因素.结果表明:热解温度显著影响生物炭理化性质(P<0.05), 提高热解温度可导致生物炭碱性增大,产率、挥发分质量分数和有机碳质量分数逐渐下降;当热解温度为800 ℃时,生物炭对罗丹明B和亚甲蓝的吸附效果均达到最大值,分别为5.8 mg/g和5.7 mg/g;生物炭对罗丹明B和亚甲蓝吸附量与灰分质量分数显著正相关,但与有机碳质量分数、挥发分质量分数以及有机碳与氧质量分数比值w(O)/w(C)等显著负相关(P<0.05). 因此,高温总体上有利于提高污泥生物炭对染料的吸附能力.
Abstract:
This paper aims to investigate the internal relationship between the physicochemical characteristics and adsorption capacity of sludge-based biochar at different pyrolysis temperatures. Sludge-based biochar was made of municipal sludge through pyrolysis at different temperatures (300-800 ℃). The physicochemical characteristics of the sludge-based biochar were measured by its adsorption capacity to rhodamine B and methylene blue. Factors that influence the adsorption capacity of biochar were identified through correlation analysis. Results show that pyrolysis temperature has a significant effect on the properties of biochar. The alkalinity of biochar increases with the increase of the pyrolysis temperature, but the yield, volatile matter, and organic C content show a contrary tendency (P<0.05). A significantly positive correlation is observed between the ash content of biochar and its adsorption capacity. However, the organic C content, mass fraction ratio of organic carbon to oxygen w(O)/w(C), volatile contents are significantly and negatively related to the adsorption capacity of biochar (P<0.05). The biochar obtained at 800 ℃ has a higher adsorption capacity both to rhodamine B and methylene blue, which is 5.8 and 5.7 mg/g, respectively. In general, the higher temperature is beneficial to improve the adsorption capacity of sludge biochar to the organic dyes.

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备注/Memo

备注/Memo:
Received:2019-11-22;Accepted:2020-01-06
Foundation:National Science and Technology Major Special Project of China (2017ZX07203-001)
Corresponding author:Professor LIU He.E-mail:liuhe@jiangnan.edu.cn
Citation:YANG Yanqin, CUI Minhua, REN Yigang, et al. Correlations between the physicochemical characteristics and adsorption capacity of sludge-based biochar induced at pyrolysis temperature[J]. Journal of Shenzhen University Science and Engineering, 2020, 37(2): 194-201.(in Chinese)
基金项目:国家科技重大专项资助项目(2017ZX07203-001)
作者简介:杨艳琴(1979—),江南大学博士研究生.研究方向:固体废物资源化.E-mail:2014010@zzuli.edu.cn
引文:杨艳琴,崔敏华,任屹罡,等.热解温度诱导下污泥生物炭特性和吸附能力相关性[J]. 深圳大学学报理工版,2020,37(2):194-201.
更新日期/Last Update: 2020-03-30