降级(电信)
黄曲霉
聚乙烯
废物管理
生物降解
傅里叶变换红外光谱
微生物降解
低密度聚乙烯
活性污泥
聚丙烯
聚对苯二甲酸乙二醇酯
假单胞菌
化学
食品科学
细菌
材料科学
微生物学
微生物
有机化学
生物
工程类
化学工程
复合材料
污水处理
遗传学
电信
计算机科学
作者
Navid Taghavi,Naresh Singhal,Wei-Qin Zhuang,Saeid Baroutian
出处
期刊:Chemosphere
[Elsevier]
日期:2021-01-01
卷期号:263: 127975-127975
被引量:104
标识
DOI:10.1016/j.chemosphere.2020.127975
摘要
The capability of different strains derived from soil, activated sludge, farm sludge, and worms’ excreta were investigated for biodegradation of high-density polyethylene, polystyrene foam, polypropylene and polyethylene terephthalate in unstimulated and stimulated conditions. Biodegradation using naturally occurring microbial strains examined in mixed (270 days) and individual (100 days) systems, while H2O2 stimulated strains were tested only in the mixed system (30 days). Penicillium raperi, Aspergillus flavus, Penicillium glaucoroseum and Pseudomonas sp. were isolated as the most plastic degrading microbes. Maximum weight loss was seen by incubation of polyethylene with Aspergillus flavus (5.5%) in unstimulated mix condition. Fourier Transform Infrared Spectroscopy (FT-IR) revealed formation of new functional groups as hydroxyl, carbonyl, alkene and alkoxy in the treated plastics. Visualisation of plastics by optical, atomic force (AFM) and electron microscopy (SEM) were also illustrated biodegradation. The derived by-products from microbial degradation was tested, and found no inhibition on microbial growth and performance.
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