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Influence of sugar beet pulp and paper waste as bulking agents on physical, chemical, and microbial properties during green waste composting
Bioresource Technology ( IF 9.7 ) Pub Date : 2018-07-10 , DOI: 10.1016/j.biortech.2018.07.040
Lu Zhang , Xiangyang Sun

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.



中文翻译:

甜菜粕和纸屑作为填充剂对绿色废料堆肥过程中物理,化学和微生物特性的影响

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。

更新日期:2018-07-10
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