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http://dx.doi.org/10.4491/eer.2016.126

Bioconversion of flowers waste: Composting using dry leaves as bulking agent  

Sharma, Dayanand (Department of Civil Engineering, S.V. National Institute of Technology)
Yadav, Kunwar D. (Department of Civil Engineering, S.V. National Institute of Technology)
Publication Information
Environmental Engineering Research / v.22, no.3, 2017 , pp. 237-244 More about this Journal
Abstract
At present, in India, handling of solid waste has become a major challenge for the municipal authorities. Composting of solid waste, especially organic waste, can be one of the solutions to tackle the issue of handling solid waste. The present study is focused on agitated piles composting of flower waste (FW). Five combinations of FW with dry leaves (DL) and cow dung (CD) were prepared to conduct the study. Significant changes were observed due to the addition of bulking agent. The bulking material helps to reduce the production of leachate and also to maintain the aerobic condition within the piles. The reduction of total organic carbon was 21% in FW composting which increased by 36.48% during the composting of FW on addition of DL and CD. On the 120th day of composting, the pH of pile five (70 kg FW + 20 kg CD + 15 kg DL) was 7.33, electrical conductivity 2.77 mS/cm, total organic carbon 26.9%, total nitrogen 2.2%, and C:N ratio was 12. Appropriate proportion of waste mixture played an important role in providing favorable conditions for the microbial transformation of flower waste to stabilized compost. Finally, FW with the combination of CD and DL was found to be successful during pile composting.
Keywords
Agitated pile; Composting; Dry leaves; Flower waste; Total organic carbon;
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