原污泥与脱脂污泥制备生物炭的比较及其特性分析

李胜红; 朱芬芬

doi:10.13205/j.hjgc.202109022

原污泥与脱脂污泥制备生物炭的比较及其特性分析

doi: 10.13205/j.hjgc.202109022

李胜红,
朱芬芬^,

中国人民大学环境学院, 北京 100872

详细信息

作者简介:
李胜红,男,硕士研究生,主要研究方向为废物处理与综合利用。lishenghong1108@163.com

通讯作者:
朱芬芬(1978-),女,博士,教授,主要研究方向为固体废物处理处置与资源化。zhufenfen@ruc.edu.cn

计量
- 文章访问数: 144
- HTML全文浏览量: 16
- PDF下载量: 6
- 被引次数: 0
出版历程
- 收稿日期: 2020-10-11
- 网络出版日期: 2022-01-21

COMPARISON AND CHARACTERISTICS OF BIOCHAR BY SLUDGE AND DEGREASING-SLUDGE

LI Sheng-hong,
ZHU Fen-fen^,

School of Environment&Natural Resourses, Renmin University of China, Beijing 100872, China

摘要

摘要: 污泥中的脂质提取后可制备生物柴油，或者是层析出其中的神经酰胺都是重要的资源化途径。污泥提脂后剩余的残渣可通过热解制备成具有吸附作用的生物炭。采用原污泥、脱脂污泥（原污泥索氏提取脂质后的剩余物），在500，600，700，800℃且绝氧条件下制备生物炭，对其成分进行了分析比较，通过扫描电子显微镜（scanning electron microscope，SEM）、傅里叶红外吸收光谱分析（Fourier transform infrared，FT-IR）、BET比表面积分析对其进行了表征，探究了原污泥和脱脂污泥制备的生物炭随温度条件变化的规律。研究发现：脱脂污泥制备得到的生物炭随温度上升，其微观表面更加粗糙，孔径增大，比表面积减小，表面官能团数量减少。相比于原污泥而言，脱脂污泥基生物炭表现出较弱的吸附性能，但依然具有进一步研究的价值和应用潜力。
- 污泥 /
- 脱脂碳化 /
- 生物炭 /
- 温度 /
- 特性
Abstract: The lipids in the sludge can be extracted to produce biodiesel, and the ceramide can be chromatographed out of it, which are both important resource recovery methods. The residue remaining after the sludge is refined, can be prepared into biochar with adsorption effect by pyrolysis. In this study, the original sludge and degreasing sludge (the residue after Soxhlet extraction of the original sludge) were used to prepare biochar under anaerobic conditions at 500℃, 600℃, 700℃, and 800℃. They were characterized by scanning electron microscope (SEM), Fourier transform infrared (FT-IR), BET specific surface area analysis, to explore the regularity of biochar prepared by sludge changeing with temperature conditions. The study found that the microscopic surface of biochar prepared by degreasing sludge became rougher, the pore size increased, the specific surface area decreased, and the number of surface functional groups decreased, with the increase of temperature. Compared with the original sludge, the degreased sludge-based biochar showed weaker adsorption performance, but still had considerable value and application potential for further research.
- sludge /
- degreased carbonization /
- biochar /
- temperature /
- character

HTML全文

参考文献(20)

[1]	孔祥娟,戴晓虎,张辰.城镇污水处理厂污泥处理处置技术[M].北京:中国建筑工业出版社.
[2]	戴晓虎.我国城镇污泥处理处置现状及思考[J].给水排水,2012,48(2):1-5.
[3]	张惠芳,孙玲,蔡申健,等.城市污泥中重金属的去除及稳定化技术研究进展[J].环境工程,2014,32(12):82-86.
[4]	CAI Q Y,MO C H,WU Q T,et al.Athanasios Katsoyiannis,Occurrence of organic contaminants in sewage sludges from eleven wastewater treatment plants[J].Chemosphere,2007,68(9):1751-1762.
[5]	ABAD E,MARTINEZ K,PLANAS C,et al.Priority organic pollutant assessment of sludges for agricultural purposes[J].Chemosphere,2007,61(9):1358-1369.
[6]	ZHANG R Y,ZHU F F,DONG Y,et,al.Function promotion of SO₄^2-/Al₂O₃-SnO₂ catalyst for biodiesel production from sewage sludge[J].Renewable Energy,2020,147:275-283.
[7]	董仪,朱芬芬,张荣岩,等.城镇污泥中神经酰胺的分离纯化[J].中国环境科学,2019,39(5):2063-2070.
[8]	TAN X F,LIU Y G,ZENG G M,et al.Application of biochar for the removal of pollutants from aqueous solutions[J].Chemosphere,2015,125:70-85.
[9]	翟世民,柳荣展,郭雪松,等.污水处理厂污泥制备生物炭及应用的研究进展[J].化工进展,2016,35(S2):363-368.
[10]	戴亮,赵伟繁,张洪伟,等.污泥生物炭对水中重金属去除的研究进展[J/OL].环境工程,[2020-10-10].http://kns.cnki.net/kcms/detail/11.2097.X.20200610.1608.012.html.
[11]	RAJKOVICH S,ENDERS A,HANLEY K,et al.Corn growth and nitrogen nutrition after additions of biochars with varying properties to a temperate soil[J].Biology and Fertility of Soils,2012,48(3):271-284.
[12]	张瑜.热解炭化技术应用于工业污泥处理的研究[J].再生资源与循环经济,2019,12(11):34-37.
[13]	DEVI P,SAROHA A.Risk analysis of pyrolyzed biochar made from paper mill effluent treatment plant sludge for bioavailability and eco-toxicity of heavy metals[J].Bioresource Technology,2014,162:308-315.
[14]	MENDEZ A,PAZ-Fwrrwiro J,ARAUJO F,et al.Biochar from pyrolysis of deinking paper sludge and its use in the treatment of a nickel polluted soil[J].Journal of Analytical and Applied Pyrolysis,2014,107:46-52.
[15]	LAMICHHANES S,KRISHNA K,SARUKKALIGE R.Polycyclic aromatic hydrocarbons (PAHs) removal by sorption:a review[J].Chemosphere,2016,148:336-353.
[16]	李娜,王建俊,孟记朋,等.城市污泥热解液相产物分析及焦油加氢精制[J].可再生能源,2019,37(1):19-25.
[17]	金湓,李宝霞,金诚.不同温度区间内污泥热解气固相产物特征[J].化工学报,2014,65(6):2316-2322.
[18]	卢欢亮,叶向东,汪永红,等.热解温度对污泥生物炭的表面特性及重金属安全性的影响[J].环境工程学报,2015,9(3):1433-1439.
[19]	陈林,平巍,闫彬,等.不同温度污泥生物炭对Cr(Ⅵ)的吸附特性[J/OL].环境工程[2020-10-10].http://kns.cnki.net/kcms/detail/11.2097.X.20200702.0831.002.html.
[20]	LEE D J,CHENG Y L,WONG R J,et al.Adsorption removal of natural organic matters in waters using biochar[J].Bioresource Technology,2018,260:413-416.