ZHUYou-fa,DENGLong,LIUWei,et al.Analysis on Closed Gas Circulating Sludge Thermal Drying Technology[J].China Water & Wastewater,2023,39(3):100-103.
密闭式气体循环污泥热干化技术性能分析
- Title:
- Analysis on Closed Gas Circulating Sludge Thermal Drying Technology
- Keywords:
- sludge; closed type; low-temperature thermal drying; moisture content; dehydration per unit energy consumption
- 摘要:
- 针对目前污泥含水量高且干化效率低的问题，设计了一种密闭式污泥热干化装置。对含水率为55%~64%的污泥进行了连续一个月的干燥测试。首先对污泥进行采样，分析污泥泥质参数；在此基础上进行主要参数测试，包括湿泥含水率、干泥含水率、进出干湿泥总量、单位能耗脱水量、冷凝水总量和冷凝水成分。结果表明，板框压滤后湿泥平均含水率为63.26%，经低温干化后的污泥含水率平均达到27.06%，且去除1 m3的水仅需耗电298 kW·h。该装置能有效减小污泥体积，降低污泥处置成本。
- Abstract:
- A closed sludge thermal drying device was designed to solve the problems of high sludge moisture content and low drying efficiency. The sludge with moisture content of 55%-64% was dried for a month. Firstly, the sludge was sampled and its parameters were analyzed. On this basis, the main parameters were tested, including moisture content of wet sludge, moisture content of dry sludge, total amount of wet and dry sludge in and out, dehydration per unit energy consumption, total amount of condensate and condensate composition. The average moisture content of wet sludge after plate and frame pressure filtration was 63.26%, while the average moisture content of sludge after low-temperature drying reached 27.06%, and only 298 kW·h of electricity was consumed to remove 1 m3 of water. The device can effectively reduce the volume of sludge and the operational cost of sludge disposal.
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(3):7.
[2]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.
[3]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(3):62.
[4]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.
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(3):21.
[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(3):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(3):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(3):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(3):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(3):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(3):74.