Raut M P, Prince William S P M, Bhattacharyya J K, Chakrabarti T, Devotta S
Solid Waste Management Unit, National Environmental Engineering Research Institute, Nehrumarg, Nagpur 440 020, India.
Bioresour Technol. 2008 Sep;99(14):6512-9. doi: 10.1016/j.biortech.2007.11.030. Epub 2007 Dec 26.
An investigation was carried out in the laboratory to find out the microbial dynamics and enzyme activities during rapid composting of municipal solid waste (MSW). Various treatments such as aeration (A), addition of chemical agents (glucose (G) and acetic acid (AA) and application of cellulolytic microbial (M) inoculum (Phanerochaete chrysosporium and Trichoderma reesei) were used to facilitate the decomposition of MSW. The result of the present investigation revealed that the degradation of organic substrates were quick (within 9-12 days) in case of rapid composting as indicated by the reduction (below 20) in C/N ratio. Whereas, normal composting took more than 20 days to attain C/N ratio of below 20. Estimation of selected enzymes (amylase, protease, phosphatase and cellulase) provided information on the substrate specific degradation profiles of various labile substrates contained in organic waste.
在实验室开展了一项调查，以探究城市固体废物（MSW）快速堆肥过程中的微生物动态和酶活性。采用了各种处理方法，如曝气（A）、添加化学试剂（葡萄糖（G）和乙酸（AA））以及接种纤维素分解微生物（M）（黄孢原毛平革菌和里氏木霉），以促进城市固体废物的分解。本次调查结果显示，快速堆肥情况下有机底物的降解很快（9 - 12天内），如碳氮比降低（低于20）所示。而正常堆肥达到碳氮比低于20则需要超过20天。对选定酶（淀粉酶、蛋白酶、磷酸酶和纤维素酶）的测定提供了有关有机废物中各种不稳定底物的底物特异性降解概况的信息。
