PANGHeliang,WANGYan,DINGJiangbo,et al.Emerging Hydrolysis Methods and Carbon Flow Pathway Thoughts for Residual Sludge Anaerobic Fermentation Processes[J].China Water & Wastewater,2026,42(8):48-56.
剩余污泥厌氧发酵过程的新兴水解技术及碳流路径思考
- Title:
- Emerging Hydrolysis Methods and Carbon Flow Pathway Thoughts for Residual Sludge Anaerobic Fermentation Processes
- Keywords:
- residual sludge; anaerobic fermentation; sludge pretreatment; hydrolysis; carbon reduction
- 摘要:
- 目前，活性污泥法广泛应用于城市污水处理，剩余污泥处置问题日益凸显。为此研究人员聚焦于前期预处理水解技术来强化剩余污泥厌氧发酵减量，以期缓解固废处置压力。此外，强化破解剩余污泥中的细胞物质和胞外聚合物，能够释放优质碳源，可代替商业碳源以满足污水处理厂前期工艺碳氮比需求。热处理、离子交换处理及热-碱处理等多种技术已被证实可有效实现剩余污泥减量，但现有研究对预处理强化过程中碳生产与碳消耗角度的碳减排问题关注不足。为此，从碳流路径角度归纳总结了剩余污泥厌氧发酵新兴水解技术的研究进展。横向对比发现，多种预处理方式过程中碳减排量达到49.51~160.22 kgCO2/t污泥，其中碱-热预处理碳减排效果最佳；厌氧发酵预处理生产的碳源与清洁电能相转换的碳生产量均高于10.29 kW·h/t污泥。通过剩余污泥厌氧发酵预处理回收碳源对商业甲醇的替换应用，可产生131.95～426.93元/t污泥的经济效益，其中具有再生复用性能的离子交换预处理经济效益可达到256.58元/t污泥。
- Abstract:
- The activated sludge method has been widely used in municipal wastewater treatment, and the problem of residual sludge disposal has become a significant challenge. To alleviate the pressure of solid waste, researchers have focused on pretreatment hydrolysis technology to enhance the reduction of residual sludge by anaerobic fermentation. In addition, the enhanced cracking of cells and extracellular polymers in the residual sludge could release high-quality carbon sources to replace commercial carbon sources to meet the carbon to nitrogen ratio requirements of the pretreatment stage of wastewater treatment plants. A variety of physical, chemical, biological, and physical-chemical coupling techniques, such as heat treatment, cation exchange treatment, and heat-alkali treatment, have been demonstrated to be effective for residual sludge reduction. However, there was a lack of carbon reduction from the perspective of carbon production and carbon consumption in the enhanced pretreatment process. In this research, the progress of emerging hydrolysis technologies for anaerobic fermentation of residual sludge was summarized from the perspective of carbon flow pathway. It was found that the carbon reduction of various pretreatment methods ranged from 49.51 to 160.22 kgCO2 per ton of sludge, with the alkaline-thermal pretreatment showing the best carbon reduction effect. The carbon production from the conversion of the carbon source produced by the anaerobic fermentation pretreatment to clean electricity exceeded 10.29 kW·h per ton of sludge. The carbon recovered through the residual sludge anaerobic fermentation pretreatment for commercial methanol replacement application produced economic benefits of 131.95-426.93 CNY per ton of sludge. Among these, the cation exchange pretreatment method, which exihites regenerative reusability, achieves economic of 256.58 CNY per ton of sludge.
相似文献/References:
[1]徐志嫱,李瑶,周爱朝,等.污泥热水解过程中磷的释放规律与影响因素[J].中国给水排水,2018,34(21):24.
XU Zhi qiang,LI Yao,ZHOU Ai chao,et al.Phosphate Release and Influencing Factors Analysis during Sludge Thermal Hydrolysis[J].China Water & Wastewater,2018,34(8):24.
[2]张彦平,呼瑞琪,李一兵,等.高铁酸盐氧化剩余污泥溶胞减量研究[J].中国给水排水,2020,36(15):59.
ZHANG Yan-ping,HU Rui-qi,LI Yi-bing,et al.Lysis and Reduction of Excess Sludge by Ferrate Oxidation[J].China Water & Wastewater,2020,36(8):59.
[3]胡德秀,张聪,张艳.超声强化污泥释磷及MAP法磷回收优化研究[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(8):65.
[4]晏习鹏,肖小兰,亓金鹏,等.中试厌氧膜生物反应器对剩余污泥的消化效果[J].中国给水排水,2020,36(19):1.
YAN Xi-peng,XIAO Xiao-lan,QI Jin-peng,et al.Digestion of Excess Sludge in a Pilot Anaerobic Membrane Bioreactor[J].China Water & Wastewater,2020,36(8):1.
[5]孙洋洋,张雨辰,徐苏云.不同来源剩余污泥有机质赋存特征及厌氧消化潜能[J].中国给水排水,2021,37(11):17.
SUN Yang-yang,ZHANG Yu-chen,XU Su-yun.Characteristics of Organic Matters in Excess Sewage Sludge from Different Sources and Their Anaerobic Digestion Potential[J].China Water & Wastewater,2021,37(8):17.
[6]朱赵冉,黄显怀,唐玉朝,等.低速搅拌球磨破解剩余污泥高效释放碳源[J].中国给水排水,2021,37(13):1.
ZHU Zhao-ran,HUANG Xian-huai,TANG Yu-chao,et al.High Efficient Release of Carbon Source from Excess Sludge Disintegrated by Low-speed Stirring and Ball-milling[J].China Water & Wastewater,2021,37(8):1.
[7]赵博玮,牛宇锟,谢飞,等.剩余污泥碳化裂解液的资源化中试研究[J].中国给水排水,2021,37(19):1.
ZHAO Bo-wei,NIU Yu-kun,XIE Fei,et al.Pilot-scale Study on Resource Recycling of Excess Sludge Carbonized Pyrolysis Liquid[J].China Water & Wastewater,2021,37(8):1.
[8]窦川川,刘玉玲,赵鹏鹤,等.碱预处理对剩余污泥DOM的溶出特征及平行因子分析[J].中国给水排水,2021,37(19):14.
DOU Chuan-chuan,LIU Yu-ling,ZHAO Peng-he,et al.Effect of Alkaline Pretreatment on DOM Dissolution Characteristics of Excess Sludge and Parallel Factor Analysis[J].China Water & Wastewater,2021,37(8):14.
[9]罗璐,施周,许仕荣,等.溶菌酶预处理对剩余污泥脱水性能的影响[J].中国给水排水,2022,38(3):87.
LUOLu,SHIZhou,XUShi-rong,et al.Effect of Lysozyme Pretreatment on Dewatering Performance of Excess Activated Sludge[J].China Water & Wastewater,2022,38(8):87.
[10]刘子娟,王寅义,徐肖甜,等.剩余污泥碱性发酵产酸及脱水性能研究[J].中国给水排水,2022,38(3):92.
LIUZi-juan,WANG Yin-yi,XUXiao-tian,et al.Acid Production and Dewatering Performance of Excess Sludge with Alkaline Fermentation[J].China Water & Wastewater,2022,38(8):92.
[11]罗锋,彭进湖,张忠祥,等.南方污水处理厂污泥厌氧发酵制取碳源及投加策略[J].中国给水排水,2022,38(3):1.
LUO Feng,PENG Jin?hu,ZHANG Zhong-xiang,et al.Preparation of Carbon Source by Anaerobic Fermentation of Sludge in Wastewater Treatment Plant in Southern China and Its Dosing Strategy[J].China Water & Wastewater,2022,38(8):1.
[12]徐雨萌,卢金锁.树脂耦合溶菌酶预处理对污泥厌氧发酵产酸的影响[J].中国给水排水,2024,40(5):23.
XUYu-meng,LUJin-suo.Effect of Cation Exchange Resin Coupled with Lysozyme on SCFAs Production by Residual Sludge Anaerobic Fermentation[J].China Water & Wastewater,2024,40(8):23.
[13]孟繁莉,彭晓静,李清坤.次氯酸钠对剩余污泥厌氧发酵产酸的影响[J].中国给水排水,2025,41(21):130.
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