Published on November 5, 2008
Describe BIODEGRADATION b.stev
these microbes grow in 10-35 o C + H2O + decaying organic matter the process gives off : heat + gases
How long do some common things take to degrade? Tetrapaks 1-5 yrs 75 days for a Biodegradable Plastic Bag OR Paper & Styrofoam Cups Plastic Bags 10/20yrs Orange Peels 1 month Cotton rags 1-5 mth Paper 2-5 mth (Wikipedia, 2008)
XENOBIOTIC COMPOUNDS Industry releases many chemicals, these are often utilised by microbes dioxins from chlorine bleaching human hormones near sewage pipe s (Wikipedia, 2008)
Industry releases many chemicals,
these are often utilised by microbes
dioxins from chlorine bleaching
human hormones near sewage pipe s
Chlorobenzenes 2,4dichlorophenoxyacetic acid Nitroaromatic compounds Chloroalkanes Herbicide Atrazene can ALL sustain microbial processes
MODIFICATION : the chemical is altered for processes CONJUGATION : use is made of any genetic material EXCRETION : disposing of unwanted material a 3 phase process
Bibliography Pollution Issues. (2007) . Biodegradation . Retrieved September 8, 2008, from http//: www.pollutionissues.com/A- Bo/ Biodegradation .html Wikipedia. (2008). Biodegradation – wikipedia , the free encyclopedia . Retrieved September 8, 2008, from http//:www.en.wikipedia. org/wiki/Biodegradable Www.molecular-plant-biotechnology.info. (2008). T ypes of recalcitrant xenobiotic compounds, halocarbons, synthetic . Retrieved September 9, 2008, from http:// www.molecular-plant-biotechnology.info/ environmental-biotechnology/microrganisms-involved-in-aerobic-d igestion.htm
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