BIODEGRADATION OF CERTAIN PLASTICS USED IN COATING CABLES OF ELECTRICAL ENERGY &TELEPHONES IN THE SOILS OF ANBAR – GOVERNERATE.

Abstract

This study was carried out to test the resistant of three different plastics towardsbiodegradation. Thes plastics are polyvinyl chloride( PVC) and low density polyethylene ( LDPE )which are used currently in the insulation of cables, and the resin of polyester ( UPE ) Three differenttypes of bacteria ( Staphylococcus , Pseudo aeraginosa Escheriohia coil )were planted on plastics indifferent soils of Anbar (Saqlawiyeh , ramadi , Qaeim ) . The biodegradation was followed via thedecreace in the overall weight and the molecular weight due to the chains scision and the shift in thefunctional groups using ( FT– IR) and( I.R, UV), and the depression in the viscosities . Microscope wasalso use to follow the surface corrosion . The result obtaind indicate that the pvc give the highestresistant tawards biodegradation , and the resistant of the three plastics follow the sequencep;- ( PVC >UPE > PE) .The nature of the soil had also not played a role in the stability of the plastics useds in thisresearch.