污泥基生物炭提升活性污泥系统处理性能

Abstract
Figure/Table
References
Related Citation (4)

Download: PDF (1728 KB) HTML (1 KB)
Export: BibTeX | EndNote (RIS)

Abstract This study investigates the sludge-based biochar to enhance the treatment performance of activated sludge systems. The highest COD reduction rates of 72.9% and 41.1% were found for activated carbon and sludge-based biochar, respectively, into the activated sludge of anaerobic tank in the A²O process. The highest reduction rate of TN was 74.1%, which was more effective than that of activated carbon. Characterization showed that activated sludge was more easily attached to sludge-based biochar and had a larger specific surface area. Activated carbon, sludge-based biochar and defatted sludge-based biochar were added in the anaerobic tank of A²O pilot plant at the frequency of one addition per sludge age. The results showed that adding sludge-based biochar had better reduction effect on COD, TN and TP than adding activated carbon. Compared with the addition of activated carbon, adding defatted sludge-based biochar had little difference in COD and TN reduction, but the average reduction rate of TP was 85.6%, which was more effective than that of activated carbon. In conclusion, biochar treatment (BT) process is more powerful than powdered activated carbon treatment (PACT) process in treating domestic sewage, and defatted sludge-based biochar is more economical as a by-product of sludge lipid extraction.

Key words： sludge-based biochar activated sludge system PACT process A²O small scale test

Received: 16 December 2021

PACS:

X705

	Service

	E-mail this article
	Add to my bookshelf
	Add to citation manager
	E-mail Alert
	RSS
	Articles by authors
	ZHAO Bing
	LIU Xiao-yan
	LI Sheng-hong
	ZHU Fen-fen

Cite this article:

ZHAO Bing,LIU Xiao-yan,LI Sheng-hong等. Sludge-based biochar enhances treatment performance of activated sludge systems[J]. CHINA ENVIRONMENTAL SCIENCECE, 2022, 42(7): 3156-3163.

URL:

http://www.zghjkx.com.cn/EN/ OR http://www.zghjkx.com.cn/EN/Y2022/V42/I7/3156

[1]	张龙,涂勇,吴伟,等.生物活性炭(PACT)对印染废水A2O工艺强化运行效果的表征[J].环境科学学报, 2014,34(3):664-670. Zhang L, Tu Y, Wu W, et al. Characterization of improved performance by powdered active carbon treatment (PACT) for dyeing wastewater treatment using A2O process[J]. Acta Scientiae Circumstantiae, 2014,34(3):664-670.
[2]	Ben W W, Zhu B, Yuan X J, et al. Occurrence, removal and risk of organic micropollutants in wastewater treatment plants across China:Comparison of wastewater treatment processes[J]. Water Research, 2018,130:38-46.
[3]	Jiang J Q, Yin Q, Zhou J L, et al. Occurrence and treatment trials of endocrine disrupting chemicals (EDCs) in wastewaters[J] Chemosphere, 2005,61(4):544-550.
[4]	Yang G, Zhang G M, Wang H C, Current state of sludge production, management, treatment and disposal in China[J]. Water Research, 2015,78:60-73.
[5]	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. Dong Y, Zhu F F, Zhang R Y, et al. Preliminary study on extraction and purification of ceramide in sewage sludge[J]. China Environmental Science, 2019,39(5):2063-2070.
[6]	郭明帅,王菲,张学良,等.改性生物炭活化过硫酸盐对水中苯和氯苯的去除机制[J].中国环境科学, 2020,40(12):5280-5289. Guo M S, Wang F, Zhang X L, et al. Removal mechanism of benzene and chlorobenzene in water by modified biochar activates persulfate[J]. China Environmental Science, 2020,40(12):5280-5289.
[7]	Wu W, Zhang L, Chen Y, et al. Interaction between activated carbon and microorganisms in PACT process[J]. The Canadian Journal of Chemical Engineering, 2014,92(8):1340-1345.
[8]	Fernández-Bou Á S, Nascentes A L, Pereira B C, et al. Mathematical modeling of COD removal via the combined treatment of domestic wastewater and landfill leachate based on the PACT process[J]. Journal of Environmental Science&Health Part A, 2015,50(4):378-384.
[9]	(土)费尔汉·切森,(土)厄兹古尔·阿克塔斯.吸附生化耦合水处理技术:原理与应用[M].北京:化学工业出版社, 2019:94-105. Ferhan Ç, Özgür A. Activated carbon for water and waste water treatment:Integration of absorpotion and biological treatment[M]. Beijing:Chemical Industry Press, 2019:94-105.
[10]	Lee S E, Shin H S, Paik B C. Treatment of Cr (VI)-containing wastewater by addition of powdered activated carbon to the activated sludge process[J]. Water Research, 1989,23(1):67-72.
[11]	Zhu F F, Zhao L Y, Zhang Z L, et al. Preliminary study at lipids extraction technology from municipal sludge by organic solvent[J]. Procedia Environmental Sciences, 2012,16:352-356.
[12]	HJ/T399-2007水质化学需氧量的测定快速消解分光光度法[S]. HJ/T399-2007 Water quality-Determination of the chemical oxygen demand-Fast digestion-Spectrophotometric method[S].
[13]	HJ636-2012水质总氮的测定碱性过硫酸钾消解紫外分光光度法[S]. HJ636-2012 Water quality-Determination of total nitrogen-Alkaline potassium persulfate digestion UV spectrophotometric method[S].
[14]	GB/T11893-1989水质总磷的测定钼酸铵分光光度法[S]. GB/T11893-1989 Water quality-Determination of total phosphorusAmmonium molybdate spectrophotometric method[S].
[15]	周颖.炭基强化生物渗滤系统处理雨水排水口出水的性能研究[D].杭州:浙江大学, 2021. Zhou Y. Study on performance of biochar-enhanced biofiltration system for stormwater runoff purification[D]. Hangzhou:Zhejiang University, 2021.
[16]	Eckenfelder W W, Argaman Y, Miller E. Process selection criteria for the biological treatment of industrial wastewaters[J]. Environmental Progress, 1989,8(1):40-45.
[17]	Martini S, Afroze S, Roni K A. Modified eucalyptus bark as a sorbent for simultaneous removal of COD, oil, and Cr (III) from industrial wastewater[J]. Alexandria Engineering Journal, 2020,59(3):1637-1648.
[18]	Nguyen Q, Watari T, Yamaguchi T, et al. COD removal from artificial wastewater by electrocoagulation using aluminum electrodes[J]. International Journal of Electrochemical Science, 2020,15:39-51.
[19]	马锋锋,赵保卫,刁静茹,等.磁性生物炭对水体中对硝基苯酚的吸附特性[J].中国环境科学, 2019,39(1):170-178. Ma F F, Zhao B W, Diao J R, et al. Adsorption characteristics of p-nitrophenol removal by magnetic biochar[J]. China Environmental Science, 2019,39(1):170-178.
[20]	马志强,胥思勤,姬江浩,等.改性水稻生物炭对水体中Sb (Ⅲ)的吸附[J].中国环境科学, 2021,41(6):11. Ma Z Q, Xu S Q, Ji J H, et al. Adsorption of Sb (Ⅲ) in water by modified rice straw biochar[J]. China Environmental Science, 2021, 41(6):11.
[21]	魏啸楠,张倩,李孟,等.磷酸改性生物炭负载硫化锰去除废水中重金属镉[J].中国环境科学, 2020,40(5):2095-2102. Wei X N, Zhang Q, Li M, et al. Removal of cadmium in wastewater by phosphoric acid modified biochar supported manganese sulfide[J]. China Environmental Science, 2020,40(5):2095-2102.
[22]	Xin W, Song Y, Wu Y. Enhanced capture ability of sludge-derived mesoporous biochar with a template-like method[J]. Langmuir 2019,35(18):6039-6047.
[23]	李胜红,朱芬芬.原污泥与脱脂污泥制备生物炭的比较及其特性分析[J].环境工程, 2021,39(9):154-159. Li S H, Zhu F F. Comparison and characteristics of biochar by sludge and degreasing-sludge[J]. Environmental Engineering, 2021,39(9):154-159.
[24]	Regkouzas P, Diamadopoulos E. Adsorption of selected organic micro-pollutants on sewage sludge biochar[J]. Chemosphere, 2019, 224(6):840-851.
[25]	Gan Q, Hou H, Liang S, et al. Sludge-derived biochar with multivalent iron as an efficient Fenton catalyst for degradation of 4-Chlorophenol[J]. Science of The Total Environment, 2020,725:138299.
[26]	Yang H L, Ye S J, Zeng Z T, et al. Utilization of biochar for resource recovery from water:A review[J]. Chemical Engineering Journal, 2020,397:125502.
[27]	Zhang M, Song G, Gelardi D L, et al. Evaluating biochar and its modifications for the removal of ammonium, nitrate, and phosphate in water[J]. Water Research, 2020,186:116303.
[28]	Kizito S, Luo H, Wu S, et al. Phosphate recovery from liquid fraction of anaerobic digestate using four slow pyrolyzed biochars:Dynamics of adsorption, desorption and regeneration[J]. Journal of Environmental Management, 2017,201:260.
[29]	Ma Y F, Yang L E, Li Wu, et al. Carbon nanotube supported sludge biochar as an efficient adsorbent for low concentrations of sulfamethoxazole removal[J]. Science of The Total Environment, 2020,718(20):137299.
[30]	Gopinath A, Divyapriya G, Srivastava V, et al. Conversion of sewage sludge into biochar:A potential resource in water and wastewater treatment[J]. Environmental Research, 2021,194:110656.