亲爱的研友该休息了!由于当前在线用户较少,发布求助请尽量完整地填写文献信息,科研通机器人24小时在线,伴您度过漫漫科研夜!身体可是革命的本钱,早点休息,好梦!

Life cycle assessment of sewage sludge pretreatment for biogas production: From laboratory tests to full-scale applicability

沼渣 沼气 厌氧消化 环境科学 废物管理 污水污泥 生命周期评估 生物炭 制浆造纸工业 原材料 污水处理 甲烷 环境工程 化学 工程类 生产(经济) 热解 宏观经济学 经济 有机化学
作者
Matia Mainardis,Marco Buttazzoni,Fabian Gievers,Charlene Vance,Francesca Magnolo,Fionnuala Murphy,Daniele Goi
出处
期刊:Journal of Cleaner Production [Elsevier BV]
卷期号:322: 129056-129056 被引量:25
标识
DOI:10.1016/j.jclepro.2021.129056
摘要

In this work, different pretreatment technologies (low temperature thermal treatment, ultrasonication, alkali treatment, combined alkali-thermal treatment, icing-thawing) were investigated together with biochar addition to increase biogas yield from sewage sludge. The aim of the work was to develop a standardized protocol, including physicochemical characterization, biochemical methane potential (BMP) tests, digestate characterization, life cycle assessment (LCA) and economic analysis, to verify the techno-economic suitability and the related environmental impacts of upgrading conventional full-scale anaerobic digesters. Low-temperature (65–85 °C) thermal pretreatment showed the best performances in enhancing sludge solubilization and methane yield (up to 110%), followed by ultrasonication (up to 53%) and biochar addition (about 16%). The solubilization rate obtained after each pretreatment was similar for municipal and industrial sludge; however, it did not correspond to a proportional increase in methane yield. LCA showed that ultrasonication led to the worst environmental impacts at laboratory scale, due to the huge electricity request; however, at full-scale conditions, green-house gases (GHG) emissions could be reduced by 22%, fossil depletion by 25% and stratospheric ozone depletion by 18%, when compared to the baseline scenario (raw sludge anaerobic digestion). The economic analysis proved that the high ultrasonication capital costs could not be recovered in the considered timeframe (15 yr), while biochar price should be significantly lowered (down to 6.5 €/ton) to give an overall positive outcome. Finally, the thermal scenario would be convenient only when considering waste heat recovery. The proposed protocol, including physicochemical sludge characterization, BMP tests, digestate characterization, LCA and economic analysis, could be extended to other existing digesters to compare alternative pretreatment strategies, enhancing renewable energy generation in biogas form.

科研通智能强力驱动
Strongly Powered by AbleSci AI
更新
PDF的下载单位、IP信息已删除 (2025-6-4)

科研通是完全免费的文献互助平台,具备全网最快的应助速度,最高的求助完成率。 对每一个文献求助,科研通都将尽心尽力,给求助人一个满意的交代。
实时播报
LONG完成签到 ,获得积分10
刚刚
秋风今是完成签到 ,获得积分10
6秒前
18秒前
核桃发布了新的文献求助10
22秒前
biubiubiu驳回了852应助
51秒前
AUGKING27完成签到 ,获得积分10
1分钟前
1分钟前
1分钟前
1分钟前
无语的诗柳完成签到 ,获得积分10
1分钟前
nina完成签到 ,获得积分10
1分钟前
远山淡影_cy完成签到,获得积分20
1分钟前
康谨完成签到 ,获得积分10
1分钟前
blenx完成签到,获得积分10
1分钟前
1分钟前
小叶子完成签到 ,获得积分10
1分钟前
Liufgui应助徐悦月采纳,获得10
1分钟前
1分钟前
Dave完成签到,获得积分10
2分钟前
FashionBoy应助Dave采纳,获得10
2分钟前
2分钟前
2分钟前
2分钟前
顾矜应助Emon采纳,获得10
2分钟前
2分钟前
3分钟前
芝麻完成签到,获得积分10
3分钟前
3分钟前
Dave发布了新的文献求助10
3分钟前
大模型应助芝麻采纳,获得10
3分钟前
3分钟前
jjjjj发布了新的文献求助10
3分钟前
Liufgui应助花凉采纳,获得20
3分钟前
biubiubiu发布了新的文献求助10
3分钟前
万能图书馆应助章鱼采纳,获得10
3分钟前
jjjjj完成签到,获得积分20
3分钟前
3分钟前
章鱼发布了新的文献求助10
3分钟前
牛八先生完成签到,获得积分10
3分钟前
3分钟前
高分求助中
The Mother of All Tableaux: Order, Equivalence, and Geometry in the Large-scale Structure of Optimality Theory 3000
A new approach to the extrapolation of accelerated life test data 1000
ACSM’s Guidelines for Exercise Testing and Prescription, 12th edition 500
Indomethacinのヒトにおける経皮吸収 400
Phylogenetic study of the order Polydesmida (Myriapoda: Diplopoda) 370
基于可调谐半导体激光吸收光谱技术泄漏气体检测系统的研究 350
Robot-supported joining of reinforcement textiles with one-sided sewing heads 320
热门求助领域 (近24小时)
化学 材料科学 医学 生物 工程类 有机化学 生物化学 物理 内科学 纳米技术 计算机科学 化学工程 复合材料 遗传学 基因 物理化学 催化作用 冶金 细胞生物学 免疫学
热门帖子
关注 科研通微信公众号,转发送积分 3990045
求助须知:如何正确求助?哪些是违规求助? 3532108
关于积分的说明 11256334
捐赠科研通 3270943
什么是DOI,文献DOI怎么找? 1805146
邀请新用户注册赠送积分活动 882270
科研通“疑难数据库(出版商)”最低求助积分说明 809228