污泥和中药熬制药渣厌氧共消化产甲烷的探究  

Study on Methane Production by Anaerobic Co-Digestion of Sludge and Pharmaceutical Residue of Traditional Chinese Medicine

作　　者：陈晓敏 颜国华 CHEN Xiaomin;YAN Guohua(Zhengzhou Health Vocational College,Zhengzhou 450000,China;Zhengzhou Institute of Industrial Application Technology,Zhengzhou 451100,China)

机构地区：[1]郑州卫生健康职业学院,河南郑州450000 [2]郑州工业应用技术学院,河南郑州451100

出　　处：《水处理技术》2025年第2期50-54,共5页Technology of Water Treatment

摘　　要：为提高污泥和中药熬制药渣(PR)的资源化利用效率,构建了污泥和PR嗜中温厌氧消化系统,探究了次氯酸钙(CH)对污泥和PR厌氧消化效能的影响并揭示相关作用机制。结果表明,CH有效提高了共消化系统甲烷产量,且CH的剂量为9%(以质量计)时,最大甲烷产量为120.5 mL/g VSS。CH有效提高了共消化底物溶出过程,提高水解速率,CH组别内溶解性COD的最大值为2315~3348 mg/L,显著高于空白组。CH能促进挥发性脂肪酸(VFA)积累,并改变了发酵类型。CH提高了共消化底物的减量率至28.5%~31.2%。酶活性分析CH促进了水解和酸化过程关键酶活性,提高了厌氧消化效率。研究结果为污泥和PR的高效资源化提供一定借鉴。To improve the resource utilization efficiency of sludge and preparation residue from traditional Chinese medicine(PR),a mesophilic anaerobic digestion system combining sludge and PR was constructed,and the effect of calcium hypochlorite(CH)on anaerobic digestion efficiency was studied.The results showed that CH effectively increased methane production in the co-digestion system;when the CH dose was 9%by mass,the maximum methane production reached 120.5 mL/g VSS.CH enhanced the dissolution of the co-digested substrate and increased the hydrolysis rate.The maximum soluble COD in the CH group ranged from 2315 mg/L to 3348 mg/L,significantly higher than that in the blank group.CH promoted the accumulation of volatile fatty acids(VFAs)and altered the fermentation type.It increased the reduction rate of the co-digested substrate to 28.5%~31.2%.Enzyme activity analysis showed that CH promoted the activities of key enzymes involved in hydrolysis and acidification,thereby improving the efficiency of anaerobic digestion.These findings provide a reference for the efficient utilization of sludge and PR.

关 键 词：污泥 中药 厌氧消化 甲烷 关键酶 

分 类 号：X703[环境科学与工程—环境工程]