SCREENING OF EFFICIENT HYDROCARBON DEGRADING STRAINS AND STUDYING OF INFLUENCE FACTORS OF DEGRADATION OF REFINERY OILY SLUDGE

摘要

The oily sludge from refinery included the oil-mud from sediment tank and oil trap,the scruff from floatation process and the surplus active sludge from bio-treatment.This kind of sludge is hard to dehydrate and the component is very complex,including,oil slick,dispersed oil,emulsified oil,dissolved oil and so on.Presently,the treating methods of oily sludge include:incinerated,buried,stacked,and bio-treatment.The quantity of pollutant remaining can be decreased to a great extent by the method of bio-treatment.