Thursday, December 23, 2010

The definition of biodegradability

Biodegradability definition

According to

Towards Common Ground –

Meeting Summary of the International Workshop on Biodegradability,

Annapolis, MD, USA, 1992.

· For all practical purposes of applying a definition, material manufactured to be biodegradable must relate to a specific disposal pathway such as composting, sewage treatment, denitrification, or anaerobic sludge treatment.

· The rate of degradation of a material manufactured to be biodegradable has to be consistent with the disposal method and other components of the pathway into which it is introduced, such that accumulation is controlled.

· The ultimate end products of aerobic biodegradation of a material manufactured to be biodegradable are carbon dioxide, water and minerals and that the intermediate products include biomass and humic materials. (Anaerobic biodegradation was discussed in less detail by the participants).

· Materials must biodegrade safely and not negatively impact on the disposal process or the use of the end product of the disposal.

Aerobic biodegradation

CPOLYMER + O2 -------------->

CO2 + H2O + CRESIDUE + CBIOMASS

Anaerobic biodegradation

CPOLYMER -------------------->

CO2 + CH4 + H2O + CRESIDUE + CBIOMASS

3 comments:

Anonymous said...

xyubtzxix http://www.free-mass-traffic.net/free-mass-traffic/free-mass-traffic-review Free Mass Traffic

Anonymous said...

Hey, This is a message to the website owner. Please check out my friends website, he is offering a very good service that you may be intrested in. Does your website gain hardly any visitors or not rank for keywords you want it to rank for with Google? Well he can help! He can provide you with tens of thousands of backlinks to your site! Take a quick look as im sure you will be intrested. http://hellomotow.net/backlinks/

Anonymous said...

Hey, This is a message to the website owner. Please check out my friends website, he is offering a very good service that you may be intrested in. Does your website gain hardly any visitors or not rank for keywords you want it to rank for with Google? Well he can help! He can provide you with tens of thousands of backlinks to your site! Take a quick look as im sure you will be intrested. http://hellomotow.net/backlinks/