Abstract: Through the incorporation of a solid-liquid separator in the form of 11.6 L settling column bacteria granular bed wash out was prevented for a 5.0 L thermophilic bioreactor system operated at high volumetric biomass densities, low hydraulic retention times and high degassed effluent recycle rates. Stability of the bioreactor operation in terms of volumetric hydrogen productivity (L H2/L/h), %H2 content and pH maintenance was readily maintained for 50 days. While volumetric hydrogen productivity increased with bacterial biomass density, both hydrogen yield (mol H2/mol glucose) and specific hydrogen productivity (L H2/g/h) declined with increasing biomass density

• Publication Date: 22-Feb-2015
• DOI: 10.15224/978-1-63248-040-8-43
• Views: 0
• Downloads: 0

Abstract: As there is no sewerage facility at Clan Jetty, human waste is directly disposed of into the sea. As a place of historical interest and a tourist destination, seeing the human waste floating on the water surface and smelling the dirty water is not good for tourism. Rapid development in Penang has impacted negative environmental impact to the marine zone. Marine zone of the Penang is heavily polluted due to the activities of land reclamation and the direct sewage discharge into the sea (Sivalingam, 1984). The Water Pollution Study confirm that the most polluted area is the stretch which are the main drains leading into Clan Jetty shore. These are the drains along Lebuh Chulia, Gat Lebuh Armenian, and Gat Lebuh Melayu. The organic loads, measured in terms of BOD, COD, Oil & Grease, Suspended Solids are highest along these strips followed by the shoreline strip. The high E Coli concentrations along these strips confirmed that there is fecal contamination most probably from the partially t

• Publication Date: 22-Feb-2015
• DOI: 10.15224/978-1-63248-040-8-44
• Views: 0
• Downloads: 0