ANALYSIS OF ENERGY RECOVERY AND CARBON EMISSION DURING SLUDGE ANAEROBIC DIGESTION UNDER DIFFERENT TREATMENT ROUTES

XIA Xue; SHAO Qianqi; CAO Yue; HUANG Wenxuan; FENG Qian; CAO Jiashun; LUO Jingyang

doi:10.13205/j.hjgc.202307001

Volume 41 Issue 7

Jul. 2023

Turn off MathJax

Article Contents

Article Navigation > ENVIRONMENTAL ENGINEERING > 2023 > 41(7): 1-7,13

XIA Xue, SHAO Qianqi, CAO Yue, HUANG Wenxuan, FENG Qian, CAO Jiashun, LUO Jingyang. ANALYSIS OF ENERGY RECOVERY AND CARBON EMISSION DURING SLUDGE ANAEROBIC DIGESTION UNDER DIFFERENT TREATMENT ROUTES[J]. ENVIRONMENTAL ENGINEERING , 2023, 41(7): 1-7,13. doi: 10.13205/j.hjgc.202307001

Citation:

XIA Xue, SHAO Qianqi, CAO Yue, HUANG Wenxuan, FENG Qian, CAO Jiashun, LUO Jingyang. ANALYSIS OF ENERGY RECOVERY AND CARBON EMISSION DURING SLUDGE ANAEROBIC DIGESTION UNDER DIFFERENT TREATMENT ROUTES[J]. ENVIRONMENTAL ENGINEERING , 2023, 41(7): 1-7,13. doi: 10.13205/j.hjgc.202307001

Citation:

XIA Xue, SHAO Qianqi, CAO Yue, HUANG Wenxuan, FENG Qian, CAO Jiashun, LUO Jingyang. ANALYSIS OF ENERGY RECOVERY AND CARBON EMISSION DURING SLUDGE ANAEROBIC DIGESTION UNDER DIFFERENT TREATMENT ROUTES[J]. ENVIRONMENTAL ENGINEERING , 2023, 41(7): 1-7,13. doi: 10.13205/j.hjgc.202307001

PDF( 2988 KB)

ANALYSIS OF ENERGY RECOVERY AND CARBON EMISSION DURING SLUDGE ANAEROBIC DIGESTION UNDER DIFFERENT TREATMENT ROUTES

doi: 10.13205/j.hjgc.202307001

XIA Xue^1,2,
SHAO Qianqi^1,2,
CAO Yue³,
HUANG Wenxuan^1,2,
FENG Qian^1,2,
CAO Jiashun^1,2,
LUO Jingyang^{1,2,4
,
,}

1. Key Laboratory of Integrated Regulation and Resource Development on Shallow Lakes of the Ministry of Education, Hohai University, Nanjing 210098, China;
2. College of Environment, Hohai University, Nanjing 210098, China;
3. School of Resources and Environmental Engineering, East China University of Science and Technology, Shanghai 200237, China;
4. Anhui Provincial Key Laboratory of Environmental Pollution Control and Resource Reuse, Hefei 230601, China

Received Date: 2022-11-16

Abstract

Abstract

Anaerobic digestion (AD) is one of the promising approaches to treat sludge for resource recovery and carbon reduction, but the efficiency of resource recovery and carbon reduction varied greatly under different treatment strategies. This work comprehensively evaluated the energy recovery and carbon emissions of four different treatment routes (i.e. conventional anaerobic digestion (R₁), hydrothermal pretreatment at 90℃/170℃ (R₂), co-digestion (R₃) and hydrothermal pretreatment with co-digestion (R₄), based on the Intergovernmental Panel on Climate Change (IPCC) methodology. Results indicated that the methane production followed an order of R₁ < R₂^90℃ < R₂^170℃ < R₃ < R₄, while the net carbon emission followed an order of R₃ < R₂^90℃ < R₁ < R₄ < R₂^170℃. All routes have achieved the aims of carbon neutrality >100% and negative carbon emissions, due to the self-sufficient heat and electricity. R₂^170℃ generated 15.4% more methane than R₂^90℃, but simultaneously increased 110% heat consumption and 60.5% carbon emissions (with a proportion of 74.3% indirect carbon emission). R₄ produced 6.3% more methane than R₃, but also increased 110% heat consumption and 61.9% carbon emissions (with a proportion of 95.9% indirect carbon emission). However, in R₃, more than 40.9% methane was generated compared with that of R₂^170℃, and it also reduced 52.7% heat consumption and 413% carbon emissions. These results implied that the co-digestion showed advantages over hydrothermal pretreatment for sludge anaerobic treatment in view of both energy recovery and carbon emission reduction. A balance between more energy input and increased operational performance should be considered in selecting the optimal sludge treatment route.
- carbon reduction,
- anaerobic co-digestion,
- sludge,
- food wastes,
- hydrothermal pretreatment,
- energy recovery

FullText(HTML)

References(40)

References

[1]	WU K, DOU X, ZHANG X, et al.The sodium-ion battery:an energy-storage technology for a carbon-neutral world[J/OL].Engineering, 2023,21(2).DOI: 10.1016/j.eng.2022.04.011.
[2]	WU J N, LI X, JIN R.The response of the industrial system to the interrelationship approaching to carbon neutrality of carbon sources and sinks from carbon metabolism:coal chemical case study[J].Energy, 2022, 261:125172.
[3]	HUANG B, XING K, NESS D, et al.Rethinking carbon-neutral built environment:urban dynamics and scenario analysis[J].Energy and Buildings, 2022, 255:111672.
[4]	戴晓虎,张辰,章林伟,等.碳中和背景下污泥处理处置与资源化发展方向思考[J].给水排水, 2021, 47(3):1-5.
[5]	宋新新,刘杰,林甲,等.碳中和时代下我国能量自给型污水处理厂发展方向及工程实践[J].环境科学学报, 2022, 42(4):53-63.
[6]	ZHANG C, YANG X, TAN X J, et al.Sewage sludge treatment technology under the requirement of carbon neutrality:recent progress and perspectives[J].Bioresource Technology, 2022, 362:127853.
[7]	戴晓虎,侯立安,章林伟,等.我国城镇污泥安全处置与资源化研究[J].中国工程科学, 2022, 24(5):145-153.
[8]	DI COSTANZO N, CESARO A, DI CAPUA F, et al.Exploiting the nutrient potential of anaerobically digested sewage sludge:a review[J].Energies, 2021, 14(23):8149.
[9]	MUNASINGHE-ARACHCHIGE S P, NIRMALAKHANDAN N.Nitrogen-fertilizer recovery from the centrate of anaerobically digested sludge[J].Environmental Science & Technology Letters, 2020, 7(7):450-459.
[10]	WU B R, LI H W, ZHOU K, et al.Three birds with one stone:N/P recovery, dewaterability improvement, and facilitating liquid digestate treatment of anaerobically digested sludge[J].ACS Sustainable Chemistry & Engineering, 2022, 10(37):12402-12410.
[11]	戴晓虎.我国污泥处理处置现状及发展趋势[J].科学, 2020, 72(6):30-34 ,4.
[12]	李慧莉,杨子显,陈志强,等.基质负荷对秸秆与污泥厌氧消化微生物群落结构的影响[J].哈尔滨工业大学学报, 2020, 52(11):18-25.
[13]	陈珺,杨琦.污泥高级厌氧消化的应用现状与发展趋势[J].中国给水排水, 2016, 32(6):19-23.
[14]	CHOI J M, HAN S K, LEE C Y.Enhancement of methane production in anaerobic digestion of sewage sludge by thermal hydrolysis pretreatment[J].Bioresource Technology, 2018, 259:207-213.
[15]	SHI Y, XU J P.A multi-objective approach to kitchen waste and excess sludge co-digestion for biomethane production with anaerobic digestion[J].Energy, 2023, 262:125243.
[16]	林文聪,赵刚,刘伟,等.污水厂污泥典型处理处置工艺碳排放核算研究[J].环境工程, 2017, 35(7):175-179.
[17]	郝晓地,王向阳,曹达啟,等.污水有机物中化石碳排放CO₂辨析[J].中国给水排水, 2018, 34(2):13-17.
[18]	IPCC, 2006 IPCC Guidelines for National Greenhouse Gas Inventories[EB/OL].https://www.ipcc-nggip.iges.or.jp/public/2006gl/index.html, 2006-04-26.
[19]	陈菊香,张疆.厌氧消化/热电联产用于污水厂污泥处理改造[J].中国给水排水, 2012, 28(22):102-104.
[20]	李哲坤,张立秋,杜子文,等.城市污泥不同处理处置工艺路线碳排放比较[J].环境科学,2023,44(2):1181-1190.
[21]	王琳,李德彬,刘子为,等.污泥处理处置路径碳排放分析[J].中国环境科学, 2022, 42(5):2404-2412.
[22]	国家市场监督管理总局,国家标准化管理委员会.综合能耗计算通则:GB/T 2589-2020[S].
[23]	IPCC.2019 refinement to the 2006 IPCC guidelines for national greenhouse gas inventory[R].
[24]	中国特种设备检测研究院,国家质量监督检验检疫总局,北京特种设备行业协会,等.锅炉节能技术监督管理规程[Z].2010:17P.;A4.
[25]	IPCC.2006 IPCC Guidelines for National Greenhouse Gas Inventories (Volume 5):waste[EB/OL].2006.http://www.ipccnggip.iges.or.jp/public/2006gl/vol5.html.2015-08-16.
[26]	郝晓地,周鹏,曹达啓.餐厨垃圾处置方式及其碳排放分析[J].环境工程学报, 2017, 11(2):673-682.
[27]	宋晓雅.污泥热水解厌氧消化与常规厌氧消化的运行比较[J].给水排水, 2019, 55(3):26-30.
[28]	张琦东.热水解对污泥厌氧消化可降解性的影响及其机理探究[J].工业安全与环保, 2018, 44(2):57-60.
[29]	次瀚林,王先恺,董滨.不同污泥干化焚烧技术路线全链条碳足迹分析[J].净水技术, 2021, 40(6):77-82 ,99.
[30]	杭世珺,关春雨.污泥厌氧消化工艺运行阶段的碳减排量分析[J].给水排水, 2013, 49(4):44-50.
[31]	王昱琛,宿程远,丁凤秀,等.厌氧共消化低碳处理餐厨垃圾与剩余污泥的现状与展望[J].广西师范大学学报(自然科学版),2022,40(5):406-417.
[32]	丁月玲,张焕焕,董滨,等.有机生活垃圾与脱水污泥协同厌氧消化工艺的性能[J].净水技术, 2017, 36(2):40-44 ,50.
[33]	ZHOU P, MESHREF M N A, DHAR B R.Optimization of thermal hydrolysis process for enhancing anaerobic digestion in a wastewater treatment plant with existing primary sludge fermentation[J].Bioresource Technology, 2021, 321:124498.
[34]	LU D, SUN F Q, ZHOU Y.Insights into anaerobic transformation of key dissolved organic matters produced by thermal hydrolysis sludge pretreatment[J].Bioresource Technology, 2018, 266:60-67.
[35]	LI H, JIN C, ZHANG Z Y, et al.Environmental and economic life cycle assessment of energy recovery from sewage sludge through different anaerobic digestion pathways[J].Energy, 2017, 126:649-657.
[36]	ZHANG L, ZHANG Y T, ZHANG Q, et al.Sludge gas production capabilities under various operational conditions of the sludge thermal hydrolysis pretreatment process[J].Journal of the Energy Institute, 2014, 87(2):121-126.
[37]	LI Y, TANG Y P, XIONG P, et al.High-efficiency methanogenesis via kitchen wastes served as ethanol source to establish direct interspecies electron transfer during anaerobic Co-digestion with waste activated sludge[J].Water Research, 2020, 176:115763.
[38]	ISMAIL A, KAKAR F L, ELBESHBISHY E, et al.Combined thermal hydrolysis pretreatment and anaerobic co-digestion of waste activated sludge and food waste[J].Renewable Energy, 2022, 195:528-539.
[39]	CAO X Q, YUAN H Y, TIAN Y Q.Anaerobic co-digestion of sewage sludge pretreated by thermal hydrolysis and food waste:gas production, dewatering performance, and community structure[J].Environ Technol, 2022,16:1-12.
[40]	郝晓地,唐兴,曹达啓.剩余污泥厌氧共消化技术研究现状及应用趋势[J].环境工程学报, 2016, 10(12):6809-6818.