Biodegradable Plastics in the Air and Soil Environment: Low Degradation Rate and High Microplastics Formation

In this study, it was carried out by designing PH, soil fertilization content, humidity and mutagenic bacteria DX1 inoculation concentration of orthogonal experiment to research chlorpyrifos degradation rate in the soil, which was affected by mutagenic bacteria DX1 in the soil environment. SPSS software was taken visualized analysis and variance analysis to evaluate the impact of different levels of the test results, to determine the factors which had significant impact on the experimental results. It showed that the best environmental factors of chlorpyrifos degradation rate in soil were the pH 7, organic fertilizer content 5mg/kg, the soil moisture 70%, inoculation volume 50ml/kg. The pH value and inoculation volume had a significant impact on chlorpyrifos degradation rate in soil; the soil humidity had little effect and the organic fertilizer content had almost no effect.

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Biodegradable mulching film with an optimum degradation rate improves soil environment and enhances maize growth

Agricultural Water Management ◽

10.1016/j.agwat.2019.02.004 ◽

2019 ◽

Vol 216 ◽

pp. 127-137 ◽

Cited By ~ 9

Author(s):

Minhua Yin ◽

Yuannong Li ◽

Heng Fang ◽

Pengpeng Chen

Keyword(s):

Degradation Rate ◽

Soil Environment ◽

Maize Growth ◽

Mulching Film

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Inhibited Degradation of Lambda-Cyhalothrin and Cypermethrin in High Copper Soils

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.183-185.480 ◽

2011 ◽

Vol 183-185 ◽

pp. 480-483 ◽

Cited By ~ 2

Author(s):

Jun Liu ◽

Cheng Sun ◽

Ping Ping Li

Keyword(s):

Heavy Metals ◽

Ecological Risk ◽

Degradation Rate ◽

Potential Ecological Risk ◽

Soil Environment ◽

High Copper ◽

High Soil ◽

Lambda Cyhalothrin ◽

Different Types ◽

Heavy Metals Pollution

Pesticides and heavy metals pollution in soil environment has become a serious problem in many countries including China. Two different types of soils were used in this study to assess whether high soil Cu concentrations may affect the degradation of Pys. The degradation rate of CPM and -CHT decreased with the addition of Cu to soils, indicating that Cu inhibited the degradation of CPM in soils. The results will provide more information about the potential ecological risk of chemicals on surface and groundwaters.

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Performance of cellulose acetate propionate in polycaprolactone and starch composites: biodegradation and water resistance properties

Biointerface Research in Applied Chemistry ◽

10.33263/briac103.382386 ◽

2020 ◽

Vol 10 (3) ◽

pp. 5382-5386

Keyword(s):

Cellulose Acetate ◽

Enzymatic Degradation ◽

Degradation Rate ◽

Water Resistance ◽

Biodegradable Plastics ◽

Cellulose Acetate Propionate ◽

Wide Range ◽

Packaging Industry ◽

Resistance Performance

Introducing starch into some polymers such as polycaprolactone (PCL) has been used to produce biodegradable plastics. The existance of a derivative of cellulose such as cellulose acetate propionate (CAP) with starch and PCL combinations might affect the degradation rate of starch when only mixed with PCL. To check whether this was the case, different investigations such as enzymatic degradation, composting trial and water resistance performance over a wide range of different compositions of such composites were studied. It is deducible that the use of cellulose acetate propionate can improve the performance of such composites without a big significantly changing their whole biodegradability. It was found that the presence of cellulose acetate propionate improved the water resistance properties which enable such composites to be used in the packaging industry.

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Quantification of the export of cytokinins from roots to shoots of Rosa hybrida and their degradation rate in the shoot

Physiologia Plantarum ◽

10.1034/j.1399-3054.1997.1010214.x ◽

1997 ◽

Vol 101 (2) ◽

pp. 347-352 ◽

Cited By ~ 1

Author(s):

Janneke A. Dieleman ◽

Francel W. A. Verstappen ◽

Rene R. J. Perik ◽

Daan Kuiper

Keyword(s):

Degradation Rate ◽

Rosa Hybrida

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Photo-catalytic degradation of gaseous pollutants in paper mills of southern China

TAPPI Journal ◽

10.32964/tj17.03.167 ◽

2018 ◽

Vol 17 (03) ◽

pp. 167-178 ◽

Cited By ~ 2

Author(s):

Xin Tong ◽

Jiao Li ◽

Jun Ma ◽

Xiaoquan Chen ◽

Wenhao Shen

Keyword(s):

Degradation Rate ◽

Southern China ◽

Catalytic Degradation ◽

Pulp And Paper ◽

Gaseous Pollutants ◽

Pulp And Paper Mills ◽

Paper Mills ◽

Initial Concentration ◽

First Order ◽

First Order Kinetics

Studies were undertaken to evaluate gaseous pollutants in workplace air within pulp and paper mills and to consider the effectiveness of photo-catalytic treatment of this air. Ambient air at 30 sampling sites in five pulp and paper mills of southern China were sampled and analyzed. The results revealed that formaldehyde and various benzene-based molecules were the main gaseous pollutants at these five mills. A photo-catalytic reactor system with titanium dioxide (TiO2) was developed and evaluated for degradation of formaldehyde, benzene and their mixtures. The experimental results demonstrated that both formaldehyde and benzene in their pure forms could be completely photo-catalytic degraded, though the degradation of benzene was much more difficult than that for formaldehyde. Study of the photo-catalytic degradation kinetics revealed that the degradation rate of formaldehyde increased with initial concentration fitting a first-order kinetics reaction. In contrast, the degradation rate of benzene had no relationship with initial concentration and degradation did not conform to first-order kinetics. The photo-catalytic degradation of formaldehyde-benzene mixtures indicated that formaldehyde behaved differently than when treated in its pure form. The degradation time was two times longer and the kinetics did not reflect a first-order reaction. The degradation of benzene was similar in both pure form and when mixed with formaldehyde.

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