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Enormous quantities of waste such as lawn waste (LW) and kitchen waste (KW) are generated in urban institutes, proper management of which is crucial. The present work was designed to bio-convert LW and KW amended with buffalo dung (BD) into humus-rich manures through composting and vermicomposting technology over a period of 3 months. At the termination of vermicomposting process, there was significant decline from initial value in certain parameters like pH (8.17–6.74), total organic carbon (36.12–28.04) and C:N (39–16), whereas increase was observed in parameters like electrical conductivity (1.19–3.22), N (1.35–1.89%), P (0.18–0.44%), K (0.78–1.06%). Concentration of toxic heavy metals (Co, Cd, Cu, As, Cr, and Pb) declined significantly in the end product. Fecundity of earthworms was favored more by higher proportion of BD, moderate KW, and 10% LW in the feedstock, and was maximum in the combination (BD60% + LW10% + KW30%) followed by (BD50% + LW0% + 50%), (BD40% + LW20% + KW40%) and (BD30% + LW20% + KW40%). Enzymatic activities such as urease, phosphatase, and dehydrogenase were found to be high initially, but declined towards maturity of the vermicompost. The study shows that buffalo dung, kitchen waste, lawn waste (6:1:3 ratio) give best quality vermicompost.
Minakshi Karwal; Anubha Kaushik. Bioconversion of lawn waste amended with kitchen waste and buffalo dung in to value-added vermicompost using Eisenia foetida to alleviate landfill burden. Journal of Material Cycles and Waste Management 2020, 23, 358 -370.
AMA StyleMinakshi Karwal, Anubha Kaushik. Bioconversion of lawn waste amended with kitchen waste and buffalo dung in to value-added vermicompost using Eisenia foetida to alleviate landfill burden. Journal of Material Cycles and Waste Management. 2020; 23 (1):358-370.
Chicago/Turabian StyleMinakshi Karwal; Anubha Kaushik. 2020. "Bioconversion of lawn waste amended with kitchen waste and buffalo dung in to value-added vermicompost using Eisenia foetida to alleviate landfill burden." Journal of Material Cycles and Waste Management 23, no. 1: 358-370.
Hydrogen is viewed as a clean and sustainable energy alternative of future that may change the present carbon-based economy to hydrogen-based economy in the years to come. Biohydrogen production by various microorganisms has emerged as a new area in energy generation that is moving ahead for industrial application. Cyanobacteria and green algae are photoautotrophic microbes that are capable of hydrogen generation by direct or indirect biophotolysis and photofermentation. Hydrogen production is mediated by hydrogenase and nitrogenase enzyme, both of which are oxygen sensitive. Various pathways and strategies of hydrogen production by these photoautotrophic microorganisms have been discussed in this chapter along with approaches to enhance hydrogen yields for prolonged duration using different photobioreactor designs. The possibility of using cyanobacteria and green algae for integrating hydrogen production with wastewater treatment and environmental implications thereof has also been discussed. In biological hydrogen production, there are no greenhouse gas emissions; thus, switching over to hydrogen as a future energy fuel would also help mitigate the global climate change problem.
Anubha Kaushik; Mona Sharma. Exploiting Biohydrogen Pathways of Cyanobacteria and Green Algae: An Industrial Production Approach. Biohydrogen Production: Sustainability of Current Technology and Future Perspective 2016, 97 -113.
AMA StyleAnubha Kaushik, Mona Sharma. Exploiting Biohydrogen Pathways of Cyanobacteria and Green Algae: An Industrial Production Approach. Biohydrogen Production: Sustainability of Current Technology and Future Perspective. 2016; ():97-113.
Chicago/Turabian StyleAnubha Kaushik; Mona Sharma. 2016. "Exploiting Biohydrogen Pathways of Cyanobacteria and Green Algae: An Industrial Production Approach." Biohydrogen Production: Sustainability of Current Technology and Future Perspective , no. : 97-113.