Influence of phosphorus precipitation on permeability and soluble microbial product concentration in a membrane bioreactor

Many articles have been published on coagulant dosing in membrane bioreactors, though few have been long-term studies examining the treatment of real wastewater. This study summarises the results of a membrane bioreactor pilot-plant (flat sheet membrane, nominal pore size 0.03 μm) that treated real municipal wastewater for two-years. Both influence of phosphorus precipitation by ferric sulphate on membrane permeability (flux decrease) and soluble microbial product concentration (especially on carbohydrates and proteins) were monitored. Flux decrease over work cycles lasting several months without phosphorus precipitation were compared to two periods with precipitation. X-ray elemental diffractometry of the filtration cake showed differences in the main contributors to inorganic fouling, with decreases in Ca and Si during operation with coagulant addition, and an increase in Fe. © 2012 Elsevier Ltd

Greek community needs assessment: Reducing the negative impact of alcohol and drugs

Participants representing Clemson\u27s Greek community have designed a research project that aims to define the problems associated with alcohol and drug misuse in the Greek community at Clemson University and to implement action steps based on sound evidence to mitigate the negative consequences associated with that misuse. The team is made up of Greek student leaders who are passionate about making a difference in their community and ultimately creating a plan to reduce alcohol and drug abuse among members. The team has conducted IRB and National PanHellenic approved focus groups and is in the process of coding the data. This poster reflects a preliminary analysis of that data

Outline of hyperfree energy, equilibrium background and heat inertia opening new frontiers of thermal analysis

Namísto klasického nekrologu budou popsány rozsáhlé vědecké výsledky Pavla Holby s důrazem na jeho podíl na zavedení a odvození hypervolné energie a související definice nových termínů phtochabilita a plutabilita a dále na charakterizaci rovnovážného pozadí procesů a důsledků pro interpretaci kinetických dat. Neméně důležité jsou jeho poznatky k určení a důsledků inerciálního tepla jako často pomíjeného vlivu v kinetice DTA známého již od roku 1701, kdy je objeven Newtonův zákon chlazení. Vyzvednuty jsou jeho pokusy k vylepšení vztahu mezi termodynamikou a kinetikou.Instead a classical obituary the rich scientific results of Pavel Holba are survived emphasizing his contribution to the underpinning and determination of hyperfree energy and associated definition of novel terms of phtochability and plutability as well as the characterization of equilibrium background of processes and its impact on the kinetic data evaluation. Not less important are his findings on the resolution and impact of heat inertia as an often forgotten effect influential in DTA kinetics which is known since the 1701 Newton cooling law. His attempts to improve the interrelation between thermodynamics and kinetics are underlined