城市固体废物 (MSW) 在植物废物旋转鼓共堆肥 (RDC) 过程中的应用及其表征
Silvia Saikia1, Krishna Chaitanya Maturi2, Harsh Prit3
1School of Agro and Rural Technology, Indian Institute of Technology Guwahati, Guwahati, 781039, Assam, India. ssilvia@iitg.ac.in.
概括
在植物废物堆肥中添加城市固体废物 (MSW) 炭,可以显著提高堆肥质量. 这种可持续的方法提高了营养含量,减少了挥发性固体,提供了可行的废物管理解决方案.
科学领域:
- 环境科学 环境科学
- 废物管理 废物管理
- 土壤科学 土壤科学
背景情况:
- 堆肥是一种可持续的生物降解城市固体废物 (MSW) 管理方法.
- 热解衍生MSW炭可能会增强堆肥过程.
- 了解煤炭对堆肥物理化学性质的影响至关重要.
研究的目的:
- 调查MSW煤炭在植物废弃物堆肥的物理化学特性上的作用.
- 评估MSW char作为堆肥修正案的潜力.
主要方法:
- 植物废物的旋转鼓堆肥,含有不同百分比的MSW炭 (0%,2.5%,5%).
- 对热友温度,pH值,总有机碳 (TOC),挥发性固体,总基尔达尔 (TKN),- (NH4-N),,和重金属的监测.
主要成果:
- 用5%的MSW煤炭修改的堆肥 (试验2) 达到更高的热友性温度,并显示TOC和挥发性固体的最大减少.
- 试验2显示TKN,和可用的增加,C/N比率降低到10.
- 与对照和试验2相比,用2.5%的MSW焦炭修改的堆肥 (试验1) 显示了的最高增加和重金属度的降低.
结论:
- 将MSW煤炭纳入植物废弃物堆肥中可以显著改善堆肥过程和堆肥质量.
- MSW char提高了宏观营养素含量,减少了不必要的成分,使其成为可持续废物管理的宝贵补充.
- 不同的炭度对营养成分和重金属减少产生不同的影响,这表明优化是可能的.
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