INVESTIGATION OF ABIOTIC DEGRADATION OF TIRE CRYOGRINDS

2021 ◽  
pp. 109814
Author(s):  
Jomin Thomas ◽  
Seyed Kasra Moosavian ◽  
Teresa Cutright ◽  
Coleen Pugh ◽  
Mark D. Soucek
Keyword(s):  
Abiotic Degradation

scholarly journals A preliminary study of the degradation of selected commercial packaging materials in compost and aqueous environments

2011 ◽  
Vol 13 (1) ◽  
pp. 55-57 ◽  
Author(s):  
Marta Musioł ◽  
Joanna Rydz ◽  
Wanda Sikorska ◽  
Piotr Rychter ◽  
Marek Kowalczuk
Keyword(s):  
Molecular Weight ◽  
Weight Loss ◽  
Terephthalic Acid ◽  
Packaging Materials ◽  
Distilled Water ◽  
Abiotic Degradation ◽  
Aqueous Environments ◽  
Preliminary Study ◽  
Industrial Composting ◽  
Surface Changes

A preliminary study of the degradation of selected commercial packaging materials in compost and aqueous environmentsThe paper presents the results of the degradation of two commercial packaging materials CONS-PET and BioPlaneta in the compost and distilled water at 70°C. The materials containing polylactide (PLA), CONS-PET 13% and BioPlaneta 20%, aliphatic-aromatic copolyester terephthalic acid/adipic acid/1,4-butanediol (BTA) and commercial additives degraded under the industrial composting conditions (composting pile or container) and in distilled water at 70°C in the laboratory holding oven. Distilled water provided the conditions for the hydrolytic (abiotic) degradation of the materials. Weight loss, changes of molecular weight, dispersity monitored via the GPC technique and the macroscopic surface changes of the tested materials were monitored during the experiments. The investigated systems show similar trends of degradation, however on the last day of the incubation the decrease of the molecular weight was higher in water than under the industrial composting conditions. The results indicate that commercial packaging materials can be degraded both while composting ((bio)degradation) and during the incubation in distilled water at 70°C (abiotic hydrolysis).

Abiotic degradation of antibiotic ionophores

2013 ◽  
Vol 182 ◽  
pp. 177-183 ◽  
Author(s):  
Pernille Bohn ◽  
Søren A. Bak ◽  
Erland Björklund ◽  
Kristine A. Krogh ◽  
Martin Hansen
Keyword(s):  
Abiotic Degradation

Evaluation of the rate of abiotic degradation of biodegradable polyethylene in various environments

2006 ◽  
Vol 91 (7) ◽  
pp. 1556-1562 ◽  
Author(s):  
Ignacy Jakubowicz ◽  
Nazdaneh Yarahmadi ◽  
Henrik Petersen
Keyword(s):  
Abiotic Degradation

Abiotic degradation of poly(dl-lactide), poly(ɛ-caprolactone) and their blends

2012 ◽  
Vol 97 (11) ◽  
pp. 2347-2355 ◽  
Author(s):  
Kikku Fukushima ◽  
Jose Luis Feijoo ◽  
Ming-Chien Yang
Keyword(s):  
Abiotic Degradation

scholarly journals Abiotic degradation rates for carbon tetrachloride and chloroform: Final report.

2012 ◽  
Author(s):  
James E. Amonette ◽  
Peter M. Jeffers ◽  
Odeta Qafoku ◽  
Colleen K. Russell ◽  
Daniel R. Humphrys ◽  
...  
Keyword(s):  
Carbon Tetrachloride ◽  
Final Report ◽  
Abiotic Degradation ◽  
Degradation Rates

Abiotic degradation pathways of isoxaben in the environment

1992 ◽  
Vol 35 (1) ◽  
pp. 13-20 ◽  
Author(s):  
Abderrahim Mamouni ◽  
Philippe Schmitt ◽  
Mohamed Mansour ◽  
Michel Schiavon
Keyword(s):  
Degradation Pathways ◽  
Abiotic Degradation

Abiotic Degradation of Oil Asphaltens

2021 ◽  
Vol 627 (5) ◽  
pp. 53-56
Author(s):  
K. V. Shabalin ◽  
◽  
L. E. Foss ◽  
L. I. Musin ◽  
O. A. Nagornova ◽  
...  
Keyword(s):  
Radiation Resistance ◽  
Electron Beams ◽  
Reaction Products ◽  
High Radiation ◽  
Natural Conditions ◽  
Abiotic Degradation ◽  
Hydrophilic Lipophilic Balance ◽  
Intense Electron Beams ◽  
Biotic Degradation ◽  
Intense Electron

This review is devoted to the generalization and systematization of the available literature data on the processes of abiotic degradation of asphaltenes, which can occur in natural conditions. In particular, it was shown that exposure to sunlight, and especially UV radiation, triggers photolysis and photooxidation reactions in asphaltenes, leading to an increase in the oxygen content in them, thereby shifting the hydrophilic-lipophilic balance towards hydrophilicity. At the same time the availability of reaction products for subsequent biotic degradation by microorganisms is increased. Exposure to ionizing radiation does not lead to a significant change in the molecular composition of asphaltenes, due to their high radiation resistance. As exception there is the irradiation of asphaltenes with intense electron beams, which leads to their significant degradation.

Anaerobic and Aerobic Treatment for AOX Removal

1994 ◽  
Vol 29 (5-6) ◽  
pp. 149-162 ◽  
Author(s):  
John F. Ferguson
Keyword(s):  
Biological Treatment ◽  
Anaerobic Treatment ◽  
Reductive Dehalogenation ◽  
Aerobic Treatment ◽  
Abiotic Degradation ◽  
In Series ◽  
Kraft Mill ◽  
Significant Chemical ◽  
Aox Removal ◽  
Aerobic And Anaerobic

A two-year study has focused on AOX removal from bleaching wastewaters in anaerobic and aerobic biological treatment, using bench scale bioreactors operated in parallel and in series. Significantly higher removals have been found in anaerobic than in aerobic treatment. Earlier work with dilute kraft bleaching wastes has been extended in additional laboratory tests and at a nearby kraft mill. 50-75% fractions of bleaching wastes were treated. Toxicity in the anaerobic process was encountered at 85% bleach waste fractions. Total AOX removal experienced in aerobic treatment is 30-35%, in anaerobic treatment 40-45%, and in an anaerobic/aerobic sequence 50-55%. Percentage removals were not sensitive to the fraction of bleaching wastewater. Several process modifications were attempted to try to obtain higher removals with only marginal success. Studies at a kraft mill confirmed the AOX removals that had been found in lab studies. AOX removal occurs by several mechanisms. There is a very significant chemical or abiotic degradation that occurs after neutralization, perhaps enhanced by reductants or other inorganic salts. Biological processes are much more significant in anaerobic than in aerobic treatment. Anaerobic reductive dehalogenation affects specific chlorinated compounds and catalyzed AOX degradation is facilitated by reduced coenzymes that are produced by bacteria. Removal by sorption or insolubilization is relatively minor in aerobic and anaerobic processes.

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