LU Tao,ZHU Bao fei,SHI Chun mei,et al.Test Run of Sewage Sludge Carbonization System and Feasibility Analysis of Sludge Carbon Land Use[J].China Water & Wastewater,2018,34(21):108-111.
污泥碳化系统试运行及污泥炭回归土壤可行性分析
- Title:
- Test Run of Sewage Sludge Carbonization System and Feasibility Analysis of Sludge Carbon Land Use
- 文章编号:
- 1000-4602(2018)21-0108-04
- Keywords:
- sewage sludge; carbonization; cleanliness; energy consumption; nutrient
- 分类号:
- TU992.3
- 文献标志码:
- C
- 摘要:
- 介绍了10 t/d污泥碳化系统组成及运行工艺，分析了该系统的运行能耗及清洁性，在考察污泥炭相关性质的基础上对污泥炭回归土壤进行了深入讨论。运行数据表明，以含水率为80%、干基低位热值为3 871.5 kJ/kg的市政污泥为原料，系统平均热能消耗为2 728.34 MJ/t，其中污泥自身可提供能耗287.52 MJ/t，外部输入能耗为2 440.82 MJ/t，电能消耗为79.2 kW·h/t。烟气经除尘、洗涤处理，即可实现达标排放，实现污泥清洁性处置。污泥炭中重金属含量符合农用泥质、园林绿化用泥质以及土地改良用泥质标准要求。污泥炭中总养分含量为1.94%，低于园林绿化用泥质及农用泥质标准要求，优于土地改良用泥质要求。该工艺处理的污泥炭均可回归土壤，一方面实现了污泥最终消纳，另一方面实现了养分元素回收利用。
- Abstract:
- A sewage sludge carbonization system and operational process was introduced. The operation energy consumption and the emission of pollutants were analyzed. Based on the investigation of sewage sludge carbon properties, the feasibility of sewage sludge carbon land use was discussed. The moisture content of sewage sludge feedstock was 80%, and its low calorific value was 3 871.5 kJ/kg. The average heat energy consumption of the system was 2 728.34 MJ/t, in which the syngas derived from sewage sludge was 287.52 MJ/t, the external heat quantity required was 2 440.82 MJ/t, and the power consumption was 79.2 kW·h/t. The exhaust gas reached the national standard through the dedusting system and the washing system. The heavy metals contents of sewage sludge carbon reached the control standards for agriculture use, afforestation in gardens or forest, and land improvement. The total nutrients content of the sewage sludge carbon was 1.94%, which was below the control standards for agriculture use, afforestation in gardens or forest, but was beyond the control standards for land improvement. Therefore, the sewage sludge carbon is suitable for land use and nutrients recycling.
参考文献/References:
［1］张千丰,王光华. 生物炭理化性质及对土壤改良效果的研究进展［J］. 土壤与作物,2012,1(4):219-226.
Zhang Qianfeng,Wang Guanghua. Research progress of physiochemical properties of biochar and its effects as soil amendments［J］. Soil and Crop,2012,1(4):219-226(in Chinese).
［2］Yuan H R,Lu T,Wang Y Z,et al. Sewage sludge biochar：Nutrient composition and its effect on the leaching of soil nutrients［J］. Geoderma,2016,267:17-23.
［3］鲁涛,袁浩然,王亚琢,等. 热解温度对污泥生物炭稳定性及养分淋溶特性影响［J］. 化工学报,2015,66(7):2664-2669.
Lu Tao,Yuan Haoran,Wang Yazhuo,et al. Influence of pyrolysis temperature on biochar stability and leaching properties of nutrients contained in biochar［J］. CIESC Journal,2015,66(7):2664-2669(in Chinese).
［4］郭广慧,杨军,陈同斌,等. 中国城市污泥的有机质和养分含量及其变化趋势［J］. 中国给水排水,2009,25(13):120-121.
Guo Guanghui,Yang Jun,Chen Tongbin,et al. Concentrations and variation of organic matter and nutrients in municipal sludge of China［J］. China Water & Wastewater,2009,25(13):120-121(in Chinese).
相似文献/References:
[1]李慧莉,何芙蓉,刘鹏程,等.外源酶强化秸秆污泥混合厌氧消化条件优化[J].中国给水排水,2020,36(15):6.
LI Hui-li,HE Fu-rong,LIU Peng-cheng,et al.Optimization of Anaerobic Co-digestion Conditions of Straw and Sludge Enhanced by Exogenous Enzymes[J].China Water & Wastewater,2020,36(21):6.
[2]孙建升,叶雅丽,郑兴灿,等.昆明市污水处理厂污泥处理工艺的研究与探讨[J].中国给水排水,2020,36(18):108.
SUN Jian-sheng,YE Ya-li,ZHENG Xing-can,et al.Research and Discussion on the Sludge Disposal Technology of Kunming WWTPs[J].China Water & Wastewater,2020,36(21):108.
[3]张会文,代晓炫,姜伟,等.市政污泥的水热反应减量化及水分赋存形态研究[J].中国给水排水,2021,37(7):96.
ZHANG Hui-wen,DAI Xiao-xuan,JIANG Wei,et al.Reduction and Water Forms of Municipal Sludge Treated by Hydrothermal Reaction[J].China Water & Wastewater,2021,37(21):96.
[4]吕开雷,杨淘,陈紫君,等.电解铝烟气余热低温干化处理市政污泥工程应用[J].中国给水排水,2021,37(12):120.
Lü Kai-lei,YANG Tao,CHEN Zi-jun,et al.Application of Low Temperature Drying in Municipal Sludge Treatment with Waste Heat of Electrolytic Aluminum Flue Gas[J].China Water & Wastewater,2021,37(21):120.
[5]李义烁,梁远,颜莹莹,等.餐厨垃圾/市政污泥/城市粪便联合厌氧消化沼液处理设计[J].中国给水排水,2021,37(14):56.
LI Yi-shuo,LIANG Yuan,YAN Ying-ying,et al.Design of Treatment Process of Biogas Slurry from Anaerobic Co-digestion of Kitchen Waste/Municipal Sludge/Urban Excrement[J].China Water & Wastewater,2021,37(21):56.
[6]李彪,周欣,高波,等.顺义区污泥干化焚烧处理工程工艺设计[J].中国给水排水,2021,37(14):63.
LI Biao,ZHOU Xin,GAO Bo,et al.Design of Sludge Drying Incineration Treatment Process in Shunyi District[J].China Water & Wastewater,2021,37(21):63.
[7]东东,赵珊,郭学彬,等.典型污泥高级厌氧消化工艺中恶臭物质的分布特征[J].中国给水排水,2021,37(21):7.
DONG Dong,ZHAO Shan,GUO Xue-bin,et al.Distribution Characteristics of Odorants in Typical Sludge Advanced Anaerobic Digestion Process[J].China Water & Wastewater,2021,37(21):7.
[8]程文,蒋岚岚,耿震,等.太原市城市污水厂污泥资源化利用工程设计[J].中国给水排水,2022,38(24):72.
CHENGWen,JIANGLan-lan,GENGZhen,et al.Engineering Design of Sludge Resource Utilization in Taiyuan Municipal Wastewater Treatment Plant[J].China Water & Wastewater,2022,38(21):72.
[9]李思敏,李思雨,唐锋兵,等.通风速率对市政污泥好氧堆肥氮素转化的影响[J].中国给水排水,2023,39(5):121.
LISi-min,LISi-yu,TANGFeng-bing,et al.Effect of Ventilation Rate on Nitrogen Transformation of Municipal Sludge in Aerobic Composting[J].China Water & Wastewater,2023,39(21):121.
[10]刘欣欣,庞敏,李会东,等.污泥基磁性吸附剂制备及其去除废水中铜的研究[J].中国给水排水,2023,39(21):99.
LIUXin-xin,PANGMin,LIHui-dong,et al.Preparation of Sludge-based Magnetic Adsorbent and Its Removal of Copper from Wastewater[J].China Water & Wastewater,2023,39(21):99.
备注/Memo
作者简介：鲁涛（1984- ），男，陕西富平人，博士，工程师，主要从事市政污泥、含油污泥以及生活垃圾等固体废弃物处置技术研发工作。
E-mail:casc_lutao@126.com
收稿日期：2018-01-12