Purification of Oil Contaminated Wastewater Using Sri Lankan Vein Graphite

Autor: A.R. Kumarasinghe, J.T. Cooray, L.E. Vithanage
Rok vydání: 2015
Předmět:
Zdroj: Proceedings of International Forestry and Environment Symposium. 20
ISSN: 2235-9427
2235-9397
Popis: Oil contaminated wastewater comes from variety of sources such as crude oil production, oilrefinery, petrochemical industry, metal processing, lubricants, cooling agents, car washing,and restaurants, etc. Oil is a highly visible pollutant and it reduces the levels of dissolvedoxygen in water and increases the level of toxic hydrocarbons. Therefor it affects the aquaticlife and water environment.Water and oil cannot be easily separated from oil-water mixtures, as oil exists in droplets inthe oil-water mixture. Oil droplets which are greater than or equal to 150 microns is classifiedas free oil while oil droplets with size ranging between 20 and 150 microns are classified asdispersed oil mixture. Emulsified oil mixtures are oil-water mixtures with droplets smallerthan 20 microns and oil-water mixture with droplet sizes smaller than 5 microns are classifiedas soluble oil mixtures.High purity vein graphite available in Sri Lanka is well renowned for electrical conductivityand lubricity. Beside it also has higher adsorption capacity. In this study, vein graphite ofdifferent particle sizes (
Databáze: OpenAIRE