ASTM-D5526 2011

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D5526-94(2011)e1 Standard Test Method for Determining Anaerobic Biodegradation of Plastic Materials Under Accelerated Landfill Conditions

Published By	Publication Date	Number of Pages
ASTM	2011	6

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Categories: 13.030.40 - Installations and equipment for waste disposal and treatment, ASTM

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Description

1.1 This test method covers determination of the degree and rate of anaerobic biodegradation of plastic materials in an accelerated-landfill test environment. This test method is also designed to produce mixtures of household waste and plastic materials after different degrees of decomposition under conditions that resemble landfill conditions. The test materials are mixed with pretreated household waste and exposed to a methanogenic inoculum derived from anaerobic digesters operating only on pretreated household waste. The anaerobic decomposition occurs under dry (more than 30 % total solids) and static nonmixed conditions. The mixtures obtained after this test method can be used to assess the environmental and health risks of plastic materials that are degraded in a landfill.

1.2 This test method is designed to yield a percentage of conversion of carbon in the sample to carbon in the gaseous form under conditions that resemble landfill conditions. It is possible that this test method will not simulate all conditions found in landfills, especially biologically inactive landfills. This test method more closely resembles those types of landfills in which the gas generated is recovered or even actively promoted, or both, for example, by inoculation (codeposition of anaerobic sewage sludge and anaerobic leachate recirculation), moisture control in the landfill (leachate recirculation), and temperature control (short-term injection of oxygen and heating of recirculated leachate) (1-7) .

1.3 This test method is designed to produce partially degraded mixtures of municipal solid waste and plastics that can be used to assess the ecotoxicological risks associated with the anaerobic degradation of plastics after various stages of anaerobic biodegradation in a landfill.

1.4 The values stated in SI units are to be regarded as the standard.

1.5 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use. Specific hazards statements are given in Section 8.

Note 1There is no known ISO equivalent to this standard.

PDF Catalog

PDF Pages	PDF Title
1	Scope Referenced Documents
2	Terminology Summary of Test Method Significance and Use Apparatus FIG. 1
3	Reagents and Materials Hazards Inoculum Test Specimen Procedure
4	Calculation Interpretation of Results Report
5	Precision and Bias Keywords REFERENCES FIG. 2

Additional information

Standard Title	D5526-94(2011)e1 Standard Test Method for Determining Anaerobic Biodegradation of Plastic Materials Under Accelerated Landfill Conditions
Published Code	ASTM
Publication Date	2011
Pages Count	6
ICS Codes	13.030.40 - Installations and equipment for waste disposal and treatment

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ASTM-D5526 2011

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