Syed, M., Soreanu, G., Falletta, P. and Béland M. 2006. Removal of hydrogen sulfide from gas streams using biological processes A review. Canadian Biosystems Engineering/Le génie des biosystèmes au Canada 48: 2.1 2.14. Hydrogen sulfide (H2S) is a toxic and odorous compound present in biogas produced by the anaerobic digestion of biosolids and other organic materials. Due to its corrosive nature...

protein memories are novel technologies which use the hidden abilities of bacteria proteins and biological molecules in order to the electronic processes. four decades before baceriorhdopsin ( br) protein was extracted from the membrane of halobacerinum salina rum found in high salt water depositions after its original discovery in 1967. in this study, for immobilizing the protein a film has be...

Integrated Fixed-Film/Activated Sludge (IFAS) technologies have been gaining wide popularity as an innovative and efficient treatment process for achieving nitrification in refining and petro-chemical wastewater treatment plants. IFAS technologies are sometimes referred to as Hybrid systems as the process combines the benefits of fixed film systems into the suspended growth activated sludge pro...

On-site biological treatment has been used for groundwater cleanup from industrial and agricultural chemicals. The pump-and-treat efficiency is controlled by retardation of contaminants by sorption onto the saturated subsurface solids and by the presence of non-aqueous-phase liquids in the aquifer. On-site bioreactors have been widely used for treatment of contaminants such as petroleum hydroca...

Sugar Factory effluent is one of the most important moderate – high pollution concentration wastewater, which is generated mainly from the mill house washing activities of the sugar factory. The effluent is rich in organic matter resultant from the sugarcane juice, sugar syrup and sugar present in the washwater. The COD of this effluent is variable from 5000 – 10000 mg/L. The aim of the present...

The development of novel photonic devices which incorporate biological materials is strongly tied to the development of thin film forming processes. Solution-based ("wet") processes when used with biomaterials in device fabrication suffer from dissolution of underlying layers, incompatibility with clean environment, inconsistent film properties, etc. We have investigated ultra-high-vacuum molec...

The Cromaglass® Corporation, based in Williamsport, PA, manufactures Sequence Batch Reactor (SBR) systems for domestic wastewater treatment. A Cromaglass® CA-60, capable of treating 6,000 gallons of wastewater per day, was installed in 2005 at Hepburn-Lycoming Elementary School, part of the Williamsport School District. This SBR was the subject of a study by the Lycoming College Clean Water Ins...