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Bagastyo Arseto Yekti Sari Putu Putri Indira Direstiyani Lucky Caesar 《Environmental science and pollution research international》2021,28(45):63646-63660
Environmental Science and Pollution Research - An attempt has been made to improve the treatment efficiency of mature landfill leachate prior to the existing biological treatment. In this study,... 相似文献
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Plastic waste constitutes the third largest waste volume in Malaysian municipal solid waste (MSW), next to putrescible waste and paper. The plastic component in MSW from Kuala Lumpur averages 24% (by weight), whereas the national mean is about 15%. The 144 waste dumps in the country receive about 95% of the MSW, including plastic waste. The useful life of the landfills is fast diminishing as the plastic waste stays un-degraded for more than 50 years. In this study the compostability of polyethylene and pro-oxidant additive-based environmentally degradable plastics (EDP) was investigated. Linear low-density polyethylene (LLDPE) samples exposed hydrolytically or oxidatively at 60 degrees C showed that the abiotic degradation path was oxidative rather than hydrolytic. There was a weight loss of 8% and the plastic has been oxidized as shown by the additional carbonyl group exhibited in the Fourier transform infra red (FTIR) Spectrum. Oxidation rate seemed to be influenced by the amount of pro-oxidant additive, the chemical structure and morphology of the plastic samples, and the surface area. Composting studies during a 45-day experiment showed that the percentage elongation (reduction) was 20% for McD samples [high-density polyethylene, (HDPE) with 3% additive] and LL samples (LLDPE with 7% additive) and 18% reduction for totally degradable plastic (TDP) samples (HDPE with 3% additive). Lastly, microbial experiments using Pseudomonas aeroginosa on carbon-free media with degradable plastic samples as the sole carbon source, showed confirmatory results. A positive bacterial growth and a weight loss of 2.2% for degraded polyethylene samples were evident to show that the degradable plastic is biodegradable. 相似文献
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Tan Luc Phan Sadiq Muhammad Aldeehani Talla M. Ehsanullah Syed Mutira Putri Vu Hieu Minh 《Environmental science and pollution research international》2022,29(18):26322-26335
Environmental Science and Pollution Research - This paper investigates the effect of different categories of essential COVID-19 data from 2020 to 2021 towards stock price dynamics and options... 相似文献
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Putri Anissa Ratna Fujimori Takashi Takaoka Masaki 《Journal of Material Cycles and Waste Management》2018,20(4):2140-2149
Journal of Material Cycles and Waste Management - In Jakarta, Indonesia, municipalities collect plastic mixed with other waste, scavengers recover plastic waste by picking through waste, and some... 相似文献
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Putri Khoiria Nur Atika Kaewpichai Supawadee Keereerak Adisak Chinpa Watchanida 《Journal of Polymers and the Environment》2021,29(6):1681-1693
Journal of Polymers and the Environment - Lignocellulosic biosorbents for wastewater treatment are generally powders. However, powdered biosorbents require the time and energy taken up in grinding... 相似文献
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