Enhanced anaerobic digestion of sewage sludge by thermal or alkaline-thermal pretreatments: Influence of hydraulic retention time reduction
文献类型：期刊论文
| 作者 | Liu, Jianwei; Dong, Lixin; Dai, Qin; Liu, Yu; Tang, Xinyi; Liu, Junxin; Xiao, Benyi
|
| 刊名 | INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
 |
| 出版日期 | 2020-01-24 |
| 卷号 | 45期号:4页码:2655-2667 |
| 关键词 | Alkaline-thermal pretreatment Enhancement effects Hydraulic retention time reduction Semi-continuous anaerobic sludge digestion Thermal pretreatment |
| ISSN号 | 0360-3199 |
| 英文摘要 | The influence of hydraulic retention times (HRTs) reduction from 25 days to 15 days on the enhancement effects of two pretreatments (thermal pretreatment and alkaline-thermal pretreatment) on the continuous anaerobic digestion (AD) of sewage sludge was studied in a long-term experiment (196 days). The operation of the semi-continuous AD fed with raw sludge or pretreated sludge was stable at the three HRTs. The methane production increased from 70.6 to 165.8 ml/L.d to 75.2-172.6 ml/L.d and the methane yield decreased from 98.9 to 234.9 mug added volatile solid to 65.6-144.9 ml/g added volatile solid when the HRT reduced from 25 days to 15 days. The two pretreatments reduced the HRT of raw sludge AD by over 40%, and the effects of the alkaline-thermal pretreatment were greater than those of the thermal pretreatment. The reduction of HRT from 25 days to 15 days increased the enhancement effects of the two pretreatments on the removal of organic matter (4.7-15.9% for volatile solid), average hydrolysis ratio (36.9-116.4%), and specific hydrolysis rate (44.1-155.6%) but decreased the enhancement effects of the pretreatments on the methane production (0.9-4.6%) and yield (4.0-15.8%), average reaction ratios (0.4-8.2%), and specific rates of the last three AD steps (0.1-13.9%). The influence of HRT reduction on the enhancement effects of the alkaline-thermal pretreatment for sludge AD was slightly greater than on the enhancement effects of the thermal pretreatment. (C) 2019 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved. |
| 源URL | [http://ir.rcees.ac.cn/handle/311016/45034]  |
| 专题 | 生态环境研究中心_水污染控制实验室 |
| 推荐引用方式 GB/T 7714 | Liu, Jianwei,Dong, Lixin,Dai, Qin,et al. Enhanced anaerobic digestion of sewage sludge by thermal or alkaline-thermal pretreatments: Influence of hydraulic retention time reduction[J]. INTERNATIONAL JOURNAL OF HYDROGEN ENERGY,2020,45(4):2655-2667. |
| APA | Liu, Jianwei.,Dong, Lixin.,Dai, Qin.,Liu, Yu.,Tang, Xinyi.,...&Xiao, Benyi.(2020).Enhanced anaerobic digestion of sewage sludge by thermal or alkaline-thermal pretreatments: Influence of hydraulic retention time reduction.INTERNATIONAL JOURNAL OF HYDROGEN ENERGY,45(4),2655-2667. |
| MLA | Liu, Jianwei,et al."Enhanced anaerobic digestion of sewage sludge by thermal or alkaline-thermal pretreatments: Influence of hydraulic retention time reduction".INTERNATIONAL JOURNAL OF HYDROGEN ENERGY 45.4(2020):2655-2667. |
入库方式： OAI收割
来源：生态环境研究中心
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。