Composting is considered to be a natural, sustainable, and highly beneficial method for solid waste disposal. The objective of this study was to investigate the two-stage composting of green waste (GW) as affected by the addition of sugar beet pulp (SBP; at 0, 25, and 35%) and/or paper waste (PW; at 0, 5, and 10%) as bulking agents. The combination of SBP and PW greatly improved the composting conditions and the final compost quality in terms of composting temperature; pH; emissions of ammonia, nitrite nitrogen, and carbon dioxide; lignocellulose degradation; microbial abundance; enzyme activities; particle-size distribution; the ratio of water-soluble organic carbon to organic nitrogen; and phytotoxicity. The optimal two-stage composting process of GW and the highest quality compost product were obtained with the combination of 25% SBP and 10% PW. This optimal combination of bulking agents produced a mature and stable final compost product in only 20 days.

堆肥被认为是一种自然，可持续和高度有益的固体废物处理方法。这项研究的目的是研究受甜菜粕（SBP； 0、25和35％）和/或纸屑（PW； 0）添加的绿色废物（GW）的两阶段堆肥处理。 ，5和10％）作为填充剂。SBP和PW的结合极大地改善了堆肥条件，并提高了堆肥温度。pH值 排放氨，亚硝酸盐氮和二氧化碳；木质纤维素降解；微生物丰度 酶活性 粒度分布; 水溶性有机碳与有机氮的比例；和植物毒性。25％SBP和10％PW的组合获得了GW的最佳两阶段堆肥工艺和最高质量的堆肥产品。