About this Abstract |
Meeting |
2020 TMS Annual Meeting & Exhibition
|
Symposium
|
2020 Technical Division Student Poster Contest
|
Presentation Title |
SPU-13: Impact of Surfactant Concentration and Type on Bilge Water Emulsions During Static and Dynamic Ageing |
Author(s) |
Rina Gabriella Sabatello |
On-Site Speaker (Planned) |
Rina Gabriella Sabatello |
Abstract Scope |
Oil-in-water emulsions (O/W) present in the bilge of ocean vessels are inefficiently filtered, causing oil discharge at sea and increasing oil pollution. Separation of oil is difficult due to the presence of surfactants that stabilize oil droplets. This study investigates model bilge water emulsions by examining their drop diameter at different surfactant concentration while ageing in static and dynamic conditions. Droplet diameter decreased with increasing surfactant concentration during static and dynamic ageing. Static ageing with SLES and Triton X-100 showed coalesced drops at concentrations below 10 and 100 ppm, respectively. Dynamic ageing caused droplet coalescence below 100 ppm SLES and 500 ppm Triton X-100. Dynamic ageing led to coalescence more quickly than static ageing. SLES was more effective than Triton X-100 in preventing coalescence at low concentrations. Overall, the stability of dynamically aged O/W emulsions in bilge water were dependent on surfactant type and concentrations up to 500 ppm. |
Proceedings Inclusion? |
Undecided |