http://hdl.handle.net/2440/758 2013-05-18T23:31:25Z http://hdl.handle.net/2440/77337 Title: A novel approach to exploit indigenous mining algal-microbes in a photo-rotating biological contactor for heavy metal removal from acid mine drainage Author: Orandi, Sanaz; Lewis, David Milton; Eslami, Afsar; Mohebbi, Ali Abstract: Extremophilic acidic microbial biofilms, that thrive in acidic mine drainages (AMD), are well known as natural metal-resistant biosorbents for removing heavy metals throught active and passive cellular functions. To benefit from the resistant and cleansing nature of these microorganisms and to develop a system applicable to mining sites, an indigenous AMD biofilm was immobilized in a laboratory scale photo-rotating biological contactor (PRBC) to investigate its heavy metal removal potential from AMD. The microbial consortium used for biofilm development contained filamentous green micro-algae, bacteria, fungi and yeasts, collected from AMD and the Sarcheshmeh copper mine in Iran. The PRBC was operated with synthesised AMD representing the multi-ion and acidic composition of the wastewater (composing 18 elements with a pH of 3.5+0.3) from which the microbial consortium was collected. Light, nutrient dosing and rotational speeds were optimised to encourage biofilm development. Electron microscopy was used to monitor the development of the algal-microbial biofilm on the PROBC discs over a 60 day batch mode operation. The PRBC was then run continuously with a 24 h hydraulic residence time (HRT) over a ten week period. The weekly average of water analysis results demonstrated the ability for the algal-microbial biofilm to remove 15-50% of various metals in the order of Cu> Ni> Mn> Zn> Sb> Cr> Co> Al. These results clearly indicate the significant potential for indigenous AMD biofilm to be exploited within a PRBC for AMD treatment. 2012-12-31T13:30:00Z http://hdl.handle.net/2440/77255 Title: Application of artificial neural networks for formulation and modeling of dye adsorption onto multiwalled carbon nanotubes Author: Shahryari, Zohre; Mohebbi, A. R.; Goharrizi, Ataallah Soltani; Forghani, Amir Ahmad 2011-12-31T13:30:00Z http://hdl.handle.net/2440/77243 Title: Blood-brain barrier: a real obstacle for therapeutics Response - authors response Author: Losic, Dusan Description: Author Response published in conjunction with Letter to the Editor. Response only appears when viewing 'Full text' or 'PDF' 2011-12-31T13:30:00Z http://hdl.handle.net/2440/77002 Title: Enzyme-responsive controlled release of covalently bound prodrug from functional mesoporous silica nanospheres Author: Popat, Amirali; Ross, Benjamin P.; Liu, Jian; Jambhrunkar, Siddharth; Kleitz, Freddy; Qiao, Shizhang 2011-12-31T13:30:00Z