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[1]许劲,范准,吕秋颖,等.山地城市污泥水热炭化产物特性研究[J].中国给水排水,2020,36(21):21-27.
XU Jin,FAN Zhun,L Qiu-ying,et al.Characteristics of Hydrothermal Carbonization Products of Municipal Sludge in Mountainous Cities[J].China Water & Wastewater,2020,36(21):21-27.点击复制
山地城市污泥水热炭化产物特性研究
中国给水排水[ISSN:1000-4062/CN:12-1073/TU] 卷: 第36卷 期数: 2020年第21期 页码: 21-27 栏目: 出版日期: 2020-11-01
Title:Characteristics of Hydrothermal Carbonization Products of Municipal Sludge in Mountainous Cities
作者:许劲1,2，范准1,2，吕秋颖1,2，唐琦1,2，李杨1,2，李遥瑶1,2，方俊华1,2(1.重庆大学环境与生态学院，重庆400045；2.重庆大学三峡库区生态环境教育部重点实验室，重庆400045)
Author(s):XU Jin1,2,FAN Zhun1,2,Lǚ Qiu-ying1,2,TANG Qi1,2,LI Yang1,2,LI Yao-yao1,2,FANG Jun-hua1,2(1. College of Environment and Ecology, Chongqing University, Chongqing 400045, China; 2. Key Laboratory of Three Reservoir Region’s Eco-Environment, Chongqing University, Chongqing 400045, China)
关键词:山地城市; 污泥; 含砂量; 水热炭化; 反应时间; 反应温度
Keywords:mountainous city; sludge; sand content; hydrothermal carbonization; reaction time; reaction temperature
摘要:以山地城市污水处理厂未添加化学调理剂的浓缩污泥为原料，通过设置200、220、240、260 ℃这4个反应温度和2、4、6 h这3个反应时间共12组实验，探究反应温度和反应时间对污泥水热炭化固相和液相产物的影响。结果表明，随着反应温度和时间的增加，污泥水热炭产率从69.32%（200 ℃-2 h）降至59.49%（260 ℃-6 h），同时水热炭中的官能团O—H、C—H和C=C逐渐降解，H/C值和O/C值（物质的量之比）减小，水热炭的脱羧和芳构化反应增强。整体而言，升高反应温度比延长反应时间对污泥水热炭化的影响更大。BMP（产甲烷潜力）实验表明，随着反应温度的升高，液相产物中难降解有机物含量增加，而且其中的苯酚和呋喃衍生物等复杂有机物对厌氧反应具有抑制作用，累积甲烷产量随之降低。随着反应温度和时间的增加，C含量呈上升趋势，而H、O和N含量反之，水热炭的高位热值（HHV）、能量密度和能量产率均低于污泥原料。污泥的高含砂量对水热炭的元素含量和热值影响显著，建议对污泥含砂量进行有效控制。
Abstract:Effects of reaction temperature and time on solid and liquid hydrothermal carbonization products of the concentrated sludge without adding chemical conditioner in a wastewater treatment plant of a mountainous city were investigated.Twelve groups of experiments were set up by setting four reaction temperatures (200 ℃, 220 ℃, 240 ℃ and 260 ℃) and three reaction times (2 h, 4 h and 6 h). With the increase of reaction temperature and time, the yield of sludge-based hydrothermal charcoal decreased from 69.32% (200 ℃ and 2 h) to 59.49% (260 ℃ and 6 h), the functional groups of O—H, C—H and C=C were gradually degraded, H/C value and O/C value decreased, and the decarboxylation and aromatization reactions of hydrothermal charcoal were enhanced. Overall, increasing reaction temperature had a greater impact on hydrothermal carbonization of sludge than extending reaction time. Biochemical methane potential (BMP) experiments indicated that the content of refractory organics in liquid products increased with the increase of reaction temperature,complex organics such as phenol and furan derivatives inhibited the anaerobic reaction, and the cumulative methane production decreased accordingly.With the increase of reaction temperature and time, the carbon content showed an upward trend, while the contents of hydrogen, oxygen, and nitrogen decreased, and the high heat value (HHV), energy density, and energy yield of hydrothermal charcoal were all lower than those of the raw sludge. The high sand content of sludge had a significant influence on the element content and HHV of hydrothermal charcoal. It was suggested to control the sand content of sludge effectively.
相似文献/References:
[1]刘常青,陈琬,曾艺芳,等.SARD与CSTR反应器半连续发酵产氢能力对比[J].中国给水排水,2018,34(21):7.
LIU Chang qing,CHEN Wan,ZENG Yi fang,et al.Hydrogen Production Capacity of Semi continuous Fermentation of SARD and CSTR Bio hydrogen Production Reactor[J].China Water & Wastewater,2018,34(21):7.
[2]李胜海,陈思,白静,等.山地城市市政道路低影响开发雨水系统设计与构建[J].中国给水排水,2018,34(20):60.
LI Sheng hai,CHEN Si,BAI Jing,et al.Design and Construction of Stormwater Systems for Low-Impact-Development of Municipal Roads in Mountainous City[J].China Water & Wastewater,2018,34(21):60.
[3]颜莹莹,梁远,沙雪华,等.新冠肺炎疫情下关于减少污泥中病原体的思考[J].中国给水排水,2020,36(6):22.
[4]郭波,田瑜,范晨,等.绿色纳米铁/H2O2联用两性脱水剂调理污泥研究[J].中国给水排水,2020,36(13):62.
GUO Bo,TIAN Yu,FAN Chen,et al. Sludge Conditioning by Green Iron Nanoparticles/H2O2 Combined with Amphoteric Dewatering Agent [J].China Water & Wastewater,2020,36(21):62.
[5]李金河,张波涛,刘宝玉,等.污泥中温厌氧消化最佳温度及改善机理分析[J].中国给水排水,2021,37(3):9.
LI Jin-he,ZHANG Bo-tao,LIU Bao-yu,et al.Optimal Reaction Temperature in Mesophilic Anaerobic Digestion of Waste Activated Sludge and Its Promotion Mechanism[J].China Water & Wastewater,2021,37(21):9.
[6]王丽花,吕国钧,王飞,等.污泥干化焚烧系统的节能降耗研究[J].中国给水排水,2021,37(4):29.
WANG Li-hua,Lü Guo-jun,WANG Fei,et al.Research on Energy Saving and Consumption Reduction of Sludge Drying and Incineration System[J].China Water & Wastewater,2021,37(21):29.
[7]纪莎莎,黄瑾.污泥焚烧工程中的磷形态分布与磷迁移研究[J].中国给水排水,2021,37(5):26.
JI Sha-sha,HUANG Jin.Phosphorus Forms Distribution and Migration in Sludge Incineration Project[J].China Water & Wastewater,2021,37(21):26.
[8]马彩霞,刘蕾,李碧清,等.强化化学淋滤对污泥重金属溶出及磷释放的影响[J].中国给水排水,2021,37(5):66.
MA Cai-xia,LIU Lei,LI Bi-qing,et al.Effect of Enhanced Chemical Leaching on Heavy Metal Dissolution and Phosphorus Release from Sludge[J].China Water & Wastewater,2021,37(21):66.
[9]李伟,常菁,王佳伟,等.热水解高级厌氧消化系统的污泥消毒、减量与能量回收[J].中国给水排水,2021,37(16):19.
LI Wei,CHANG Jing,WANG Jia-wei,et al.Sludge Disinfection, Reduction and Energy Recovery by Anaerobic Digestion with Thermal Hydrolysis Pretreatment[J].China Water & Wastewater,2021,37(21):19.
[10]胡佩佩,侯锋,范莹,等.深度脱水污泥好氧发酵工艺研究[J].中国给水排水,2021,37(17):74.
HU Pei-pei,HOU Feng,FAN Ying,et al.Aerobic Fermentation Process of Deep Dewatering Sludge[J].China Water & Wastewater,2021,37(21):74.
更新日期/Last Update: 2020-11-01
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[1]许劲,范准,吕秋颖,等.山地城市污泥水热炭化产物特性研究[J].中国给水排水,2020,36(21):21-27.
XU Jin,FAN Zhun,L Qiu-ying,et al.Characteristics of Hydrothermal Carbonization Products of Municipal Sludge in Mountainous Cities[J].China Water & Wastewater,2020,36(21):21-27.
点击复制
山地城市污泥水热炭化产物特性研究
中国给水排水[ISSN:1000-4062/CN:12-1073/TU] 卷: 第36卷 期数: 2020年第21期 页码: 21-27 栏目: 出版日期: 2020-11-01
- Title:
- Characteristics of Hydrothermal Carbonization Products of Municipal Sludge in Mountainous Cities
- 作者:
- 许劲1,2，范准1,2，吕秋颖1,2，唐琦1,2，李杨1,2，李遥瑶1,2，方俊华1,2
- (1.重庆大学环境与生态学院，重庆400045；2.重庆大学三峡库区生态环境教育部重点实验室，重庆400045)
- Author(s):
- XU Jin1,2,FAN Zhun1,2,Lǚ Qiu-ying1,2,TANG Qi1,2,LI Yang1,2,LI Yao-yao1,2,FANG Jun-hua1,2
- (1. College of Environment and Ecology, Chongqing University, Chongqing 400045, China; 2. Key Laboratory of Three Reservoir Region’s Eco-Environment, Chongqing University, Chongqing 400045, China)
- 关键词:
- 山地城市; 污泥; 含砂量; 水热炭化; 反应时间; 反应温度
- Keywords:
- mountainous city; sludge; sand content; hydrothermal carbonization; reaction time; reaction temperature
- 摘要:
- 以山地城市污水处理厂未添加化学调理剂的浓缩污泥为原料，通过设置200、220、240、260 ℃这4个反应温度和2、4、6 h这3个反应时间共12组实验，探究反应温度和反应时间对污泥水热炭化固相和液相产物的影响。结果表明，随着反应温度和时间的增加，污泥水热炭产率从69.32%（200 ℃-2 h）降至59.49%（260 ℃-6 h），同时水热炭中的官能团O—H、C—H和C=C逐渐降解，H/C值和O/C值（物质的量之比）减小，水热炭的脱羧和芳构化反应增强。整体而言，升高反应温度比延长反应时间对污泥水热炭化的影响更大。BMP（产甲烷潜力）实验表明，随着反应温度的升高，液相产物中难降解有机物含量增加，而且其中的苯酚和呋喃衍生物等复杂有机物对厌氧反应具有抑制作用，累积甲烷产量随之降低。随着反应温度和时间的增加，C含量呈上升趋势，而H、O和N含量反之，水热炭的高位热值（HHV）、能量密度和能量产率均低于污泥原料。污泥的高含砂量对水热炭的元素含量和热值影响显著，建议对污泥含砂量进行有效控制。
- Abstract:
- Effects of reaction temperature and time on solid and liquid hydrothermal carbonization products of the concentrated sludge without adding chemical conditioner in a wastewater treatment plant of a mountainous city were investigated.Twelve groups of experiments were set up by setting four reaction temperatures (200 ℃, 220 ℃, 240 ℃ and 260 ℃) and three reaction times (2 h, 4 h and 6 h). With the increase of reaction temperature and time, the yield of sludge-based hydrothermal charcoal decreased from 69.32% (200 ℃ and 2 h) to 59.49% (260 ℃ and 6 h), the functional groups of O—H, C—H and C=C were gradually degraded, H/C value and O/C value decreased, and the decarboxylation and aromatization reactions of hydrothermal charcoal were enhanced. Overall, increasing reaction temperature had a greater impact on hydrothermal carbonization of sludge than extending reaction time. Biochemical methane potential (BMP) experiments indicated that the content of refractory organics in liquid products increased with the increase of reaction temperature,complex organics such as phenol and furan derivatives inhibited the anaerobic reaction, and the cumulative methane production decreased accordingly.With the increase of reaction temperature and time, the carbon content showed an upward trend, while the contents of hydrogen, oxygen, and nitrogen decreased, and the high heat value (HHV), energy density, and energy yield of hydrothermal charcoal were all lower than those of the raw sludge. The high sand content of sludge had a significant influence on the element content and HHV of hydrothermal charcoal. It was suggested to control the sand content of sludge effectively.
相似文献/References:
[1]刘常青,陈琬,曾艺芳,等.SARD与CSTR反应器半连续发酵产氢能力对比[J].中国给水排水,2018,34(21):7.
LIU Chang qing,CHEN Wan,ZENG Yi fang,et al.Hydrogen Production Capacity of Semi continuous Fermentation of SARD and CSTR Bio hydrogen Production Reactor[J].China Water & Wastewater,2018,34(21):7.
[2]李胜海,陈思,白静,等.山地城市市政道路低影响开发雨水系统设计与构建[J].中国给水排水,2018,34(20):60.
LI Sheng hai,CHEN Si,BAI Jing,et al.Design and Construction of Stormwater Systems for Low-Impact-Development of Municipal Roads in Mountainous City[J].China Water & Wastewater,2018,34(21):60.
[3]颜莹莹,梁远,沙雪华,等.新冠肺炎疫情下关于减少污泥中病原体的思考[J].中国给水排水,2020,36(6):22.
[4]郭波,田瑜,范晨,等.绿色纳米铁/H2O2联用两性脱水剂调理污泥研究[J].中国给水排水,2020,36(13):62.
GUO Bo,TIAN Yu,FAN Chen,et al. Sludge Conditioning by Green Iron Nanoparticles/H2O2 Combined with Amphoteric Dewatering Agent [J].China Water & Wastewater,2020,36(21):62.
[5]李金河,张波涛,刘宝玉,等.污泥中温厌氧消化最佳温度及改善机理分析[J].中国给水排水,2021,37(3):9.
LI Jin-he,ZHANG Bo-tao,LIU Bao-yu,et al.Optimal Reaction Temperature in Mesophilic Anaerobic Digestion of Waste Activated Sludge and Its Promotion Mechanism[J].China Water & Wastewater,2021,37(21):9.
[6]王丽花,吕国钧,王飞,等.污泥干化焚烧系统的节能降耗研究[J].中国给水排水,2021,37(4):29.
WANG Li-hua,Lü Guo-jun,WANG Fei,et al.Research on Energy Saving and Consumption Reduction of Sludge Drying and Incineration System[J].China Water & Wastewater,2021,37(21):29.
[7]纪莎莎,黄瑾.污泥焚烧工程中的磷形态分布与磷迁移研究[J].中国给水排水,2021,37(5):26.
JI Sha-sha,HUANG Jin.Phosphorus Forms Distribution and Migration in Sludge Incineration Project[J].China Water & Wastewater,2021,37(21):26.
[8]马彩霞,刘蕾,李碧清,等.强化化学淋滤对污泥重金属溶出及磷释放的影响[J].中国给水排水,2021,37(5):66.
MA Cai-xia,LIU Lei,LI Bi-qing,et al.Effect of Enhanced Chemical Leaching on Heavy Metal Dissolution and Phosphorus Release from Sludge[J].China Water & Wastewater,2021,37(21):66.
[9]李伟,常菁,王佳伟,等.热水解高级厌氧消化系统的污泥消毒、减量与能量回收[J].中国给水排水,2021,37(16):19.
LI Wei,CHANG Jing,WANG Jia-wei,et al.Sludge Disinfection, Reduction and Energy Recovery by Anaerobic Digestion with Thermal Hydrolysis Pretreatment[J].China Water & Wastewater,2021,37(21):19.
[10]胡佩佩,侯锋,范莹,等.深度脱水污泥好氧发酵工艺研究[J].中国给水排水,2021,37(17):74.
HU Pei-pei,HOU Feng,FAN Ying,et al.Aerobic Fermentation Process of Deep Dewatering Sludge[J].China Water & Wastewater,2021,37(21):74.
更新日期/Last Update: 2020-11-01
