Study on demetalization of sewage sludge by sequential extraction before liquefaction for the production of cleaner bio-oil and bio-char

被引：58

作者：

Leng, Lijian ^{[1
,2
]}

Yuan, Xingzhong ^{[1
,2
,3
]}

Shao, Jianguang ^{[1
,2
]}

Huang, Huajun ^{[4
]}

Wang, Hou ^{[1
,2
]}

Li, Hui ^{[5
]}

Chen, Xiaohong ^{[3
]}

Zeng, Guangming ^{[1
,2
]}

机构：

[1] Hunan Univ, Coll Environm Sci & Engn, Changsha 410082, Hunan, Peoples R China

[2] Hunan Univ, Minist Educ, Key Lab Environm Biol & Pollut Control, Changsha 410082, Hunan, Peoples R China

[3] Collaborat Innovat Ctr Resource Conserving & Envi, Changsha 410083, Hunan, Peoples R China

[4] Jiangxi Agr Univ, Sch Land Resources & Environm, Nanchang 330045, Peoples R China

[5] Hunan Acad Forestry, Inst Bioenergy, Changsha 410004, Hunan, Peoples R China

来源：

BIORESOURCE TECHNOLOGY | 2016年 / 200卷

基金：

中国国家自然科学基金;

关键词：

Sewage sludge; Liquefaction; Demetalization; Heavy metal; Bio-oil/bio-char; HEAVY-METAL REMOVAL; HYDROTHERMAL TREATMENT; RISK-ASSESSMENT; TRANSFORMATION BEHAVIOR; LIGNOCELLULOSIC BIOMASS; QUANTITATIVE-EVALUATION; ENVIRONMENTAL RISK; WASTE; SPECIATION; PYROLYSIS;

D O I：

10.1016/j.biortech.2015.10.040

中图分类号：

S2 [农业工程];

学科分类号：

0828 ;

摘要：

Demetalization of sewage sludge (SS) by sequential extraction before liquefaction was implemented to produce cleaner bio-char and bio-oil. Demetalization steps 1 and 2 did not cause much organic matter loss on SS, and thus the bio-oil and bio-char yields and the compositions of bio-oils were also not affected significantly. However, the demetalization procedures resulted in the production of cleaner bio-chars and bio-oils. The total concentrations and the acid soluble/exchangeable fraction (F1 fraction, the most toxic heavy metal fraction) of heavy metals (Cu, Cr, Pb, Zn, and Cd) in these products were significantly reduced and the environmental risks of these products were also relived considerably compared with those produced from raw SS, respectively. Additionally, these bio-oils had less heavy fractions. Demetalization processes with removal of F1 and F2 fractions of heavy metals would benefit the production of cleaner bio-char and bio-oil by liquefaction of heavy metal abundant biomass like SS. (C) 2015 Elsevier Ltd. All rights reserved.

引用

页码：320 / 327

页数：8

共 35 条

[1] Heavy metal extractable forms in sludge from wastewater treatment plants [J].

Alvarez, EA ;

Mochón, MC ;

Sánchez, JCJ ;

Rodríguez, MT .

CHEMOSPHERE, 2002, 47 (07) :765-775

[2] Sewage sludge valorization by flash pyrolysis in a conical spouted bed reactor [J].

Alvarez, Jon ;

Amutio, Maider ;

Lopez, Gartzen ;

Barbarias, Itsaso ;

Bilbao, Javier ;

Olazar, Martin .

CHEMICAL ENGINEERING JOURNAL, 2015, 273 :173-183

[3] Fate and risk assessment of heavy metals in residue from co-liquefaction of Camellia oleifera cake and sewage sludge in supercritical ethanol [J].

Chen, Hongmei ;

Zhai, Yunbo ;

Xu, Bibo ;

Xiang, Bobin ;

Zhu, Lu ;

Qiu, Lei ;

Liu, Xiaoting ;

Li, Caiting ;

Zeng, Guangming .

BIORESOURCE TECHNOLOGY, 2014, 167 :578-581

[4] Total concentrations and speciation of heavy metals in municipal sludge from Changsha, Zhuzhou and Xiangtan in middle-south region of China [J].

Chen, Ming ;

Li, Xiao-ming ;

Yang, Qi ;

Zeng, Guang-ming ;

Zhang, Ying ;

Liao, De-xiang ;

Liu, Jing-jin ;

Hu, Jing-mei ;

Guo, Liang .

JOURNAL OF HAZARDOUS MATERIALS, 2008, 160 (2-3) :324-329

[5] Dilemma of Sewage Sludge Treatment and Disposal in China [J].

Feng, Leiyu ;

Luo, Jingyang ;

Chen, Yinguang .

ENVIRONMENTAL SCIENCE & TECHNOLOGY, 2015, 49 (08) :4781-4782

[6] Stabilization and separation of heavy metals in incineration fly ash during the hydrothermal treatment process [J].

Hu, Yuyan ;

Zhang, Pengfei ;

Li, Jianping ;

Chen, Dezhen .

JOURNAL OF HAZARDOUS MATERIALS, 2015, 299 :149-157

[7] Recent progress in the direct liquefaction of typical biomass [J].

Huang, Hua-jun ;

Yuan, Xing-zhong .

PROGRESS IN ENERGY AND COMBUSTION SCIENCE, 2015, 49 :59-80

[8] Thermochemical liquefaction characteristics of sewage sludge in different organic solvents [J].

Huang, Hua-jun ;

Yuan, Xing-zhong ;

Li, Bao-tong ;

Xiao, Yuan-dong ;

Zeng, Guang-ming .

JOURNAL OF ANALYTICAL AND APPLIED PYROLYSIS, 2014, 109 :176-184

[9] Comparative studies of thermochemical liquefaction characteristics of microalgae, lignocellulosic biomass and sewage sludge [J].

Huang, Hua-jun ;

Yuan, Xing-zhong ;

Zhu, Hui-na ;

Li, Hui ;

Liu, Yan ;

Wang, Xue-li ;

Zeng, Guang-ming .

ENERGY, 2013, 56 :52-60

[10] Quantitative evaluation of heavy metals' pollution hazards in liquefaction residues of sewage sludge [J].

Huang, Huajun ;

Yuan, Xingzhong ;

Zeng, Guangming ;

Zhu, Huina ;

Li, Hui ;

Liu, Zhifeng ;

Jiang, Hongwei ;

Leng, Lijian ;

Bi, Wenkai .

BIORESOURCE TECHNOLOGY, 2011, 102 (22) :10346-10351

← 1 2 3 4 →