Abstract
The article presents the research findings of processing kieselguhr sludge – a waste product of refined sunflower oil production, generated at winterization stage, when vegetable waxes, waxlike substances and other components, which crystallize at low temperatures and cause the oil turbidity, are removed. The resulting waste product is a slow stock of organomineral composition with organic matter content 65-70%. This sludge is virtually not recycled, but dumped at municipal solid waste disposal sites. This results in the environment pollution and non-recoverable losses of high-quality mineral stock and valuable organic components. It has been determined that after thermal modification of sludge waste the organic substances in it are partially oxidized with the formation of carbon layer on the surface of diatomite particles. The resulting product is a thermally modified kieselguhr sludge, which is characterized with mesoporous structure, high water repellency, and oil-receptivity and can be used as an adsorption material for purifying wastewaters from emulsified petroleum products in dynamic conditions. The secondary use of kieselguhr sludge would allow reducing the amounts of waste accumulation and improving the efficiency of raw material resources utilization.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callMore From: IOP Conference Series: Materials Science and Engineering
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
