焦点提醒：超声/厌氧消化处置残剩污泥参数优化和机理研究 刘永剑1， 刘宇雷2， 徐学信2， 王尚1， 在博文1， 刘硕1， 王永磊3（1.水发计划设想无限公司，山东 济南 250100；2.济南市市政项目设想研究院无限义务公司，山东 济南 250101；3.山东建筑年夜学 市政与情况项目学院，山东 济南 250101）
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PDF下载[1]刘永剑,刘宇雷,徐学信,等.超声/厌氧消化处置残剩污泥参数优化和机理研究[J].中国给水排水,2022,38(5):84-90. LIUYong-jian,LIUYu-lei,XUXue-xin,et al.Parameter Optimization and Mechanism of Ultrasonic and Anaerobic Digestion for the Treatment of Excess Sludge[J].China Water & Wastewater,2022,38(5):84-90.点击复制超声/厌氧消化处置残剩污泥参数优化和机理研究中国给水排水[ISSN:1000-4062/CN:12-1073/TU]卷:第38卷期数:2022年第5期页码:84-90栏目:出书日期:2022-03-01- Title:
- Parameter Optimization and Mechanism of Ultrasonic and Anaerobic Digestion for the Treatment of Excess Sludge
- 作者:
- 刘永剑1， 刘宇雷2， 徐学信2， 王尚1， 在博文1， 刘硕1， 王永磊3
- （1.水发计划设想无限公司，山东 济南 250100；2.济南市市政项目设想研究院<团体>无限义务公司，山东 济南 250101；3.山东建筑年夜学 市政与情况项目学院，山东 济南 250101）
- Author(s):
- LIU Yong-jian1， LIU Yu-lei2， XU Xue-xin2， WANG Shang1， YU Bo-wen1， LIU Shuo1， WANG Yong-lei3
- （1. Water Development Planning and Design Co. Ltd.， Jinan 250100， China； 2. Jinan Municipal Engineering Design & Research InstituteCo. Ltd.， Jinan 250101， China； 3. School of Municipal & Environmental Engineering， Shandong Jianzhu University， Jinan 250101， China）
- 要害词:
- 超声;厌氧消化;残剩污泥;参数优化;机理;粒径
- Keywords:
- ultrasounic;anaerobic digestion;excess sludge;parameter optimization;mechanism;particle size
- 摘要:
- 针对污水厂残剩污泥量年夜和低C/N污水脱氮碳源不足问题，将残剩污泥破壁作为碳源回用，具有较强的可行性和实际意义。为此，研究了超声结合厌氧消化工艺破解残剩污泥的适合运转参数和溶出物资的结果，并探讨了污泥破解机理。经由过程对SCOD、卵白质、多糖、VFAs的浓度转变趋向进行阐发，肯定了超声结合厌氧消化工艺的最好组合参数：声能密度为1.5 W/mL，处置时候为30 min，厌氧消化处置时候为7 d。对残剩污泥进行超声预处置发觉，跟着声能密度的加强，污泥液相中各物资浓度增年夜，但30 min今后各物资浓度的增加趋向逐步变缓。厌氧消化可以或许帮忙污泥溶胞，而且能够晋升VFAs浓度。经由过程污泥粒径的转变可知，超声能够粉碎污泥的絮体布局，进而加速水解进程，缩短厌氧消化时候。
- Abstract:
- Aiming at the problem of l����Ϸapparge amount of excess sludge and insufficient carbon source for denitrification of low C/N wastewater, it is feasible and practical to reuse the disintegrated excess sludge as carbon source. The optimal operating parameters and the release of dissolved substances in the process of ultrasonic combined with anaerobic digestion for excess sludge disintegration were investigated, and the mechanism of sludge disintegration was explored. By analyzing the profile of SCOD, protein, polysaccharide and VFAs concentrations, the optimal parameters of ultrasonic combined with anaerobic digestion were determined as follows: acoustic energy density of 1.5 W/mL, treatment time of 30 min and anaerobic digestion treatment time of 7 days. Ultrasonic pretreatment of excess sludge showed that the concentration of each substance in liquid phase increased with the increase of acoustic energy density.However,the increasing trend of each substance concentration gradually slowed down.Anaerobic digestion was beneficial to sludge lysis and increased VFAs concentrations. Variations in sludge particle size indicated that ultrasonic destroyed the floc structure of sludge, so as to accelerate the hydrolysis process and shorten the anaerobic digestion time.
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[1]胡德秀,张聪,张艳.超声强化污泥释磷和MAP法磷收受接管优化研究[J].中国给水排水,2020,36(15):65.HU De-xiu,ZHANG Cong,ZHANG Yan.Phosphorus Release from Sludge Enhanced by Ultrasound and Optimization of Phosphorus Recovery by Magnesium Ammonium Phosphate Method[J].China Water & Wastewater,2020,36(5):65.[2]刘心怡,汤志业,朱晓茜,等.SBR反映器中活性污泥胞外聚合物的提取方式比力[J].中国给水排水,2021,37(17):25.LIU Xin-yi,TANG Zhi-ye,ZHU Xiao-xi,et al.Comparison of Extracellular Polymeric Substance Extraction Methods from Activated Sludge in Sequencing Batch Reactor[J].China Water & Wastewater,2021,37(5):25.[3]赫俊国,尹诗敏,赵美花,等.铁系导电介质粒度对残剩污泥厌氧消化效能的影响[J].中国给水排水,2022,38(7):11.HEJun-guo,YINShi-min,ZHAOMei-hua,et al.Effect of Particle Size of Iron Conducting Media on Anaerobic Digestion Efficiency of Excess Sludge[J].China Water & Wastewater,2022,38(5):11.[4]时玉龙,鲍海鹏,李伟,等.北排清河第二再生水厂低碳运转实践[J].中国给水排水,2022,38(14):99.SHIYu-long,BAOHai-peng,LIWei,et al.Low-carbon Operation Practice of Qinghe Ⅱ Wastewater Reclamation Plant under Beijing Drainage Group[J].China Water & Wastewater,2022,38(5):99.[5]江丽华,卓桂华,陈细妹,等.药剂结合高温对低无机质污泥水解增进研究[J].中国给水排水,2022,38(19):86.JIANGLi-hua,ZHUOGui-hua,CHENXi-mei,et al.Effects of Chemical Agent Combined with High Temperature on Hydrolysis of Sludge with Low Organic Content[J].China Water & Wastewater,2022,38(5):86.
更新日期/Last Update:2022-03-01
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