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YAN Ying-ying,MENG Chun-lin,LIANG Yuan,et al.Continuous Deep Dewatering Coupled with Low Temperature Drying Process in Yingtan Sludge Treatment Plant[J].China Water & Wastewater,2020,36(16):105-110.
連續(xù)深度脫水耦合低溫干化工藝用于鷹潭污泥處理廠
- Title:
- Continuous Deep Dewatering Coupled with Low Temperature Drying Process in Yingtan Sludge Treatment Plant
- 摘要:
- 鷹潭市污泥處理廠設(shè)計處理規(guī)模為65 t/d（污泥含水率為80%），采用連續(xù)深度脫水耦合低溫干化兩段式組合工藝。第一段是干化前的預(yù)脫水，利用高壓帶式壓濾機將污泥含水率由80%降至65%~70%；第二段是污泥低溫干化設(shè)備，采用對流熱風(fēng)干燥的方式對網(wǎng)帶上的濕料污泥進行脫水干化減量至含水率為20%。實踐表明，在低溫干化工藝前端增加機械深度脫水段，可以降低整體的投資和運行成本。此外，兩段式工藝提高了系統(tǒng)的靈活性及生產(chǎn)保障冗余度，干化污泥的處置出路近期為園林綠化肥料骨料，遠期送至垃圾焚燒廠進行摻燒。該工程的成功運行實現(xiàn)了鷹潭市污泥的減量化和資源化，對城鎮(zhèn)污水處理廠污泥處理處置工藝選擇具有示范意義。
- Abstract:
- The combined two-stage process of continuous deep dewatering coupled with low temperature drying was adopted in Yingtan sludge treatment plant with the capability of 65 t/d (the sludge water content was 80%). In the first stage of pre-dewatering before drying, the high-pressure belt filter press was used to reduce the water content to 65%-70% from 80% by mechanical dewatering. In the second stage of low temperature drying equipment, the water content of the wet sludge was reduced to 20% by convection hot air drying. The practice showed that adding a mechanical deep dewatering section at the front of the low temperature drying process could reduce the overall investment and operating costs. Furthermore, the two-stage process could enhance the flexibility and production guarantee redundancy of the system, the treated sludge were used as aggregate of landscaping fertilizer and would be sent to waste incineration plant in the long term. The successful operation of the project has realized the reduction and resource utilization of sludge in Yingtan, which is of demonstration significance to the selection of sludge treatment and disposal process in municipal wastewater treatment plant.
相似文獻/References:
[1]宋曉雅.小紅門污泥熱水解厭氧消化項目運行兩周年之回顧[J].中國給水排水,2018,34(22):116.
SONG Xiao-ya.Review of Biennial Operation of Xiaohongmen Thermal Hydrolysis Anaerobic Digestion System[J].China Water & Wastewater,2018,34(16):116.
[2]仝恩從.保定市污泥處理中心項目的工藝選擇及思考[J].中國給水排水,2018,34(20):21.
TONG En cong.Process Selection and Thought of Baoding Sludge Treatment Center Project[J].China Water & Wastewater,2018,34(16):21.
[3]林明,莊毅璇,李建,等.某污水處理廠污泥處理系統(tǒng)技術(shù)改造[J].中國給水排水,2018,34(20):109.
LIN Ming,ZHUANG Yi xuan,LI Jian,et al.Technological Transformation of Sludge Treatment System in a WWTP[J].China Water & Wastewater,2018,34(16):109.
[4]王首都,黃申斌,魏小玲,等.立式移動地板發(fā)酵倉技術(shù)在崇明某污水廠的應(yīng)用[J].中國給水排水,2020,36(14):138.
WANG Shou-du,HUANG Shen-bin,WEI Xiao-ling,et al.Application of Vertical Mobile Floor Fermentation Bin in a Sewage Treatment Plant in Chongming District[J].China Water & Wastewater,2020,36(16):138.
[5]孫建升,葉雅麗,鄭興燦,等.昆明市污水處理廠污泥處理工藝的研究與探討[J].中國給水排水,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(16):108.
[6]卓星星,尹興新,石爍輝,等.負荷對高鹽污泥氧化硫硫桿菌調(diào)理系統(tǒng)脫水效能的影響[J].中國給水排水,2020,36(23):27.
ZHUO Xing-xing,YIN Xing-xin,SHI Shuo-hui,et al.Effect of Load on Dewatering Efficiency of High Salinity Sludge Conditioning System with Acidithiobacillus thiooxidans[J].China Water & Wastewater,2020,36(16):27.
