市政污泥和园林废弃物高效厌氧生态化处理研究  

Study on Efficient Anaerobic Ecological Treatment of Municipal Sludge and Garden Wastes

作　　者：户江月[1] 张陌 王春江 HU Jiangyue;ZHANG Mo;WANG Chunjiang(Zhengzhou Institute of Science and Technology,Zhengzhou 450064,China;River Anlan Engineering Consulting Co.,Ltd,Zhengzhou 450064,China;Wenxian Environmental Monitoring Center,Jiaozuo 454850,China)

机构地区：[1]郑州科技学院,河南郑州450064 [2]江河安澜工程咨询有限公司,河南郑州450064 [3]温县环境监测中心,河南焦作454850

出　　处：《水处理技术》2024年第11期129-133,共5页Technology of Water Treatment

基　　金：河南省自然科学基金(201600410276)。

摘　　要：以市政污泥(MS)和园林废弃物(GW)为探究对象,构建高温厌氧消化系统,探究了过氧化钙(CaO_(2))对MS和SS厌氧共消化生态处理的影响。结果表明,CaO_(2)能影响GW和SS厌氧共消化产酸效率,且CaO_(2)最佳剂量为8%时(以干重计),最大挥发性脂肪酸(VFA)产量为214.8 mg/g VS。CaO_(2)提高了GW和SS厌氧共消化系统内有机质的释放,且CaO_(2)暴露剂量越显著,SCOD释放量越大。CaO_(2)提高了GW和SS共消化内VFA的产量,并提高了乙酸盐和丙酸盐占比。CaO_(2)提高抑制了有机质甲烷化过程,从而减少了酸化产物气化过程。CaO_(2)能缓解pH过程酸化并促进氨氮释放进而维持消化系统稳定性。CaO_(2)提高城镇典型有机固体废水的厌氧生态化处理,助力双碳目标的实现。Taking municipal sludge(MS)and garden waste(GW)as research objects,a high temperature anaerobic digestion system was constructed,and the effect of calcium peroxide(CaO_(2))on the ecological treatment of MS and SS anaerobic co-digestion was studied.The results showed that CaO_(2)could affect the acid production efficiency of anaerobic co-digestion of GW and SS,and when the optimum dose of CaO_(2)was 8%(in terms of dry weight),the maximum yield of volatile fatty acids(VFA)was 214.8 mg/g VS.CaO_(2)increased the release of organic matter in the anaerobic codigestion system of GW and SS,and the more significant the exposure dose of CaO_(2)was,the greater the SCOD release was.CaO_(2)increased the yield of VFA in the co-digestion of GW and SS,and increased the proportion of acetate and propionate.The increase of CaO_(2)inhibits the methanation process of organic matter,thus reducing the gasification process of acidified products.CaO_(2)can alleviate the acidification of pH process and promote the release of ammonia nitrogen,thus maintaining the stability of the digestive system.CaO_(2)can improve the anaerobic ecological treatment of typical organic solid wastewater in cities and towns,and help to achieve the goal of double carbon.

关 键 词：厌氧消化 园林废弃物 市政污泥 挥发性脂肪酸 稳定性 

分 类 号：X703[环境科学与工程—环境工程]