Watson Ariyaphuttarat. Alternative bioremediation of wastewater from gas stations. Master's Degree(Industrial Ecology and Environment). Mahidol University. : Mahidol University, 2007.
Alternative bioremediation of wastewater from gas stations
Abstract:
The objective of this work was to remediate hydrocarbons, especially oil, by
using microbial bioremediation technology, and applying this technology to
wastewater from gas stations in order to make wastewater quality from gas stations
comply with the new regulation. Five gas stations from different companies were
selected using the same criteria. The wastewater from different activities was analysed
for the pH, BOD, COD, SS and FOG. The results were then compared to see how the
wastewater quality was improved.
Results showed that bioremediation technology was helpful for gas stations in
Thailand because the wastewater was remediated at waste sources. The resulting
BOD, COD, SS and FOG of the wastewater discharge at the exit within 30 days were
approximately decreased to 54.0%, 61.0%, 40.0% and 55.0% respectively. However,
these results showed that the new regulation could be complied within a period of
approximately 5 weeks. Moreover, this technology can reduce some operational costs
and also investment costs of wastewater systems. Therefore, it can be concluded that
bioremediation using microbes is capable of being used as a part of wastewater
management in gas stations.