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Management of lignocellulosic green waste Saccharum spontaenum through vermicomposting with cow dung.
Waste Management ( IF 8.1 ) Pub Date : 2020-06-05 , DOI: 10.1016/j.wasman.2020.05.050
Chaichi Devi 1 , Meena Khwairakpam 2
Affiliation  

Saccharum spontaenum is considered as an invasive terrestrial weed spread across the world and its management possess big challenge to the research community. The current study illustrates the potential of vermicomposting for the management of lignocellulosic terrestrial weed Saccharum spontaenum under green waste management. The vermicompost experiments were done in five different mixing ratio of Saccharum spontaenum amended with cow dung 3:7, 4:6, 5:5, 6:4, 7:3 in vermireactors referred as Ref1, Ref2, Ref3, Ref4, Ref5 respectively. The vermicomposting was carried out for total 45 days with one time feeding of the earthworms. The study indicates a mature vermicompost can be obtained with enhanced nutrients from proper mixing ratio. The different physicochemical parameters were observed to be varied among the reactors and between vermicomposting time significantly. The final C/N ratio was within 10–16 with highest decrease in Ref1. Earthworm growth was observed to be highest in Ref2 with percentage change of net biomass of earthworms with 34.25%. The highest TOC loss was observed to be 31.4% change in Ref2 and maximum TKN was 2.95% in the final vermicompost of Ref3. Even though the mixing ratio of Ref1 and Ref2 was found to be ideal for the degradation of Saccharum spontaenum, the other reactors also produced acceptable quality end product. The study further reveals that the earthworm species Eisenia fetida was highly suitable for the biodegradation of this lignocellulosic weed material.



中文翻译:

通过与牛粪的mi堆肥处理木质纤维素绿色废物蔗糖。

蔗糖被认为是一种遍及世界的侵入性陆生杂草,其管理对研究界提出了巨大的挑战。当前的研究表明,在绿色废物管理下,ver堆肥对木质纤维素地面杂草Soncharen spentaenum的管理潜力。com堆实验是在五个不同的混合比例的蔗糖与牛粪混合后进行的:牛粪3:7、4:6、5:5、6:4、7:3在称为R ef 1,R ef 2,R ef的蠕变反应器中进行3,R ef 4,R ef5个。com堆肥总共进行了45天,一次是喂食worm。研究表明,通过适当的混合比例可以增加营养,从而获得成熟的ver粉。观察到不同的物理化学参数在反应器之间和ver堆浆时间之间显着变化。最终的C / N比在10-16之间,R ef 1下降最大。在R ef 2中,observed的生长最高,with的净生物量百分比变化为34.25%。观察到最高的TOC损失是R ef 2的31.4%变化,最大的TKN在Ref3的最终ver石中为2.95%。即使R ef 1和R ef的混合比发现2是最理想的降解海绵状酵母的方法,其他反应器也生产了合格的最终产品。这项研究进一步揭示,species种的埃塞尼亚fetida非常适合这种木质纤维素杂草材料的生物降解。

更新日期:2020-06-05
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