翻堆工艺对0～15mm垃圾堆肥腐熟度空间变异影响研究

针对好氧堆肥高温发酵阶段堆体腐熟度差异大、空间存在变异的问题，以经北京市马家楼垃圾转运站筛分后的0-15mm生活垃圾为研究对象，在南宫堆肥厂隧道仓进行密闭式静态发酵试验。设计添加高温发酵阶段翻堆处理1次，与未经翻堆的处理进行对比，进行空间各种腐熟度指标测定及统计分析配对t检验。结果表明，未翻堆和翻堆物料的腐熟度指标经统计分析配对t检验，容重、pH值、EC、WSC、NH＋4-N、发芽率指数Pr值均小于0.01，差异极显著，含水率和E4/E6的Pr值小于0.05，差异显著；只有固相C/N的Pr值为0.445 5，大于0.05，差异不显著。高温发酵阶段进行翻堆处理，可以使堆体各处腐熟度均匀一致，空间变异性得到改善，同时可以明显促进微生物对垃圾的分解转化，加快垃圾的腐熟速度，提高堆肥产品的品质，为南宫堆肥厂提供了技术保障。

The Impact of Turning Techniques on 0-15 mm Municipal Solid Waste Composting Maturity Spatial Variation

ZHOU Yu, ZHAO Xiao-song, LI Guo-xue, WANG Gui-qin, ZHANG Hong-yu, SHI Dian-long, XU De-gang （ 1. College of Resource and Environment, Jilin Agrlcultural University, Changehun 130118, China; 2. College of Resource and Environment, China Agricultural University, Beijing 100094, China） Abstract：Aiming at the problem of the heap maturity great variation and spatial variation of aerobic eomposting fermentation stage of high- temperature, taking 0-15 mm municipal solid waste（MSW） in Majialou transfer station as research object, and researching 0 - 15 mm MSW in the high-temperature fermentation stage of the spatial variability. Simultaneously discussed turning disposal to improve the role of variation.Closed static state fermentation test will be carried out in fermentation warehouse of Nangong compost plant. It was designed to add turning disposal once in fermentation stage of high-temperature, and compared with un-turning disposal by taking various kinds of maturity target test and statistical analysis of matched T-test.The result indicated ： （1） Pr of bulk density 、pH ,EC 、WSC ,NH4^＋-N ,GI for un-turning and turning material maturity was less than 0.01, showing great difference; （2）Pr of moisture and EJE6 was less than 0.05, showing difference; （3） Only Pr of C/N was 0.445 5, which was more than 0.05, showing no difference. Carrying out turning disposal in fermentation stage of high temperature could make heap maturity same thus improve spatial variation. Meanwhile, it could promote decomposition and transformation of microorganism to MSW obviously, speed up the rate of maturity of MSW, improved the quality of compost product and provide technique assurance for Nangong compost plant.