6. SLUDGES/ SEDIMENTS & CONTAMINATED SOILS Mixed into soil surface OR bio-treatment cell AND : periodically turned, AERATING THE MIXTURE ALSO SYSTEMS used to treat: NEAR SURFACE soil contamination hydrocarbon & pesticides used for years in management /disposal of : oily sludge & other petroleum refinery wastes (Wikipedia, 2008)
7. MICROBES treat: contamination in soil & water completely degrades these to ETHYLENE and CHLORIDE which are NON-TOXIC USED in: MUNICIPAL WASTEWATER TREATMENT to restart activated sludge bioreactors Chlorinated ethenes Tetrachloroethylene Trichloroethylene (Wikipedia, 2008)
8. Bibliography Wikipedia. (2008). Bioremediation - wikipedia, the free encyclopedia . Retrieved September13, 2008, from http//: www. en.wikipedia.org/wiki/ Bioremedi ation - 44k - Transgalactic Ltd. (2005). What is Bioremediation . Retrieved September 13, 2008, from http//: www.bionewsonline.com/w/what_is _ bioremediation .html