The combined effect of degrading bacteria and organic fertilizers may have an impact on the degradation behaviour of plastics remaining in the soil. In this experiment, the degradation effect and biofilm characteristics of plastics in soil were investigated for 90 days by adding organic fertilizer inoculated with degrading bacteria for secondary fermentation. The results showed that plastics typically exhibited weak weight loss and surfacespecific changes after incubation. In terms of mass loss, the weight loss of the experimental group inoculated with the bacterial mixture was as high as 17.1 %, while the weight loss of the organic fertilizer not inoculated with degrading bacteria was only 6.2 %. In addition, the increase in carbon-oxygen functional groups and the change in oxygen/carbon ratio observed by XPS, FTIR, etc. indicate that plastics are gradually oxidized and degraded in soils while organic fertilizers inoculated with degrading bacteria have been applied. In addition, the addition of organic fertilizers inoculated with degrading bacteria to soil containing plastics enriched the diversity of bacterial biofilm communities on the surface of the plastics, with the main strains being Bacteroidota, Firmicutes and Proteobacteria.The results of this study may provide a theoretical basis for efficient plastic degradation and pollution control in soil.
机构:
Beijing Normal Univ, Sch Environm, State Key Lab Water Environm Simulat, Beijing 100875, Peoples R ChinaBeijing Normal Univ, Sch Environm, State Key Lab Water Environm Simulat, Beijing 100875, Peoples R China
Zhang, Shengwei
Li, Yanxia
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Beijing Normal Univ, Sch Environm, State Key Lab Water Environm Simulat, Beijing 100875, Peoples R ChinaBeijing Normal Univ, Sch Environm, State Key Lab Water Environm Simulat, Beijing 100875, Peoples R China
Li, Yanxia
Jiang, Linshu
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Beijing Univ Agr, Beijing 102206, Peoples R ChinaBeijing Normal Univ, Sch Environm, State Key Lab Water Environm Simulat, Beijing 100875, Peoples R China
Jiang, Linshu
Han, Wei
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Minist Ecol & Environm, Solid Waste & Chem Management Ctr, Beijing 100029, Peoples R ChinaBeijing Normal Univ, Sch Environm, State Key Lab Water Environm Simulat, Beijing 100875, Peoples R China
Han, Wei
Zhao, Yan
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Beijing Normal Univ, Sch Environm, State Key Lab Water Environm Simulat, Beijing 100875, Peoples R ChinaBeijing Normal Univ, Sch Environm, State Key Lab Water Environm Simulat, Beijing 100875, Peoples R China
Zhao, Yan
Jiang, Xiaoman
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Beijing Normal Univ, Sch Environm, State Key Lab Water Environm Simulat, Beijing 100875, Peoples R ChinaBeijing Normal Univ, Sch Environm, State Key Lab Water Environm Simulat, Beijing 100875, Peoples R China
Jiang, Xiaoman
Li, Jing
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Beijing Normal Univ, Sch Environm, State Key Lab Water Environm Simulat, Beijing 100875, Peoples R ChinaBeijing Normal Univ, Sch Environm, State Key Lab Water Environm Simulat, Beijing 100875, Peoples R China
Li, Jing
Shi, Wenzhuo
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Beijing Normal Univ, Sch Environm, State Key Lab Water Environm Simulat, Beijing 100875, Peoples R ChinaBeijing Normal Univ, Sch Environm, State Key Lab Water Environm Simulat, Beijing 100875, Peoples R China
Shi, Wenzhuo
Zhang, Xuelian
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Beijing Soil & Fertilizer Extens Serv Stn, Beijing 100029, Peoples R ChinaBeijing Normal Univ, Sch Environm, State Key Lab Water Environm Simulat, Beijing 100875, Peoples R China
机构:
Univ Bucharest, Fac Biol, Ctr Res Consulting & Training Microbiol Genet & B, Bucharest, RomaniaUniv Bucharest, Fac Biol, Ctr Res Consulting & Training Microbiol Genet & B, Bucharest, Romania
Mereuta, Ioana
Ionescu, Robertina
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Univ Bucharest, Fac Biol, Ctr Res Consulting & Training Microbiol Genet & B, Bucharest, RomaniaUniv Bucharest, Fac Biol, Ctr Res Consulting & Training Microbiol Genet & B, Bucharest, Romania
Ionescu, Robertina
Vassu, Tatiana
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Univ Bucharest, Fac Biol, Ctr Res Consulting & Training Microbiol Genet & B, Bucharest, RomaniaUniv Bucharest, Fac Biol, Ctr Res Consulting & Training Microbiol Genet & B, Bucharest, Romania
Vassu, Tatiana
Tanase, Ana-Maria
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Univ Bucharest, Fac Biol, Ctr Res Consulting & Training Microbiol Genet & B, Bucharest, RomaniaUniv Bucharest, Fac Biol, Ctr Res Consulting & Training Microbiol Genet & B, Bucharest, Romania
Tanase, Ana-Maria
Stoica, Ileana
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Univ Bucharest, Fac Biol, Ctr Res Consulting & Training Microbiol Genet & B, Bucharest, RomaniaUniv Bucharest, Fac Biol, Ctr Res Consulting & Training Microbiol Genet & B, Bucharest, Romania