Research Abstracts

This paper describes the findings of an experimental investigation carried out on a pilot scale membrane bioreactor (MBR) with the addition of powdered activated carbon (PAC) to analyze improvements in effluent quality and in the filtration process. The results refer to a pilot plant monitoring stre

Concentration polarization and membrane fouling have limited the efficiency of reverse osmosis. Rotating filtration may minimize the effects of concentration polarization and membrane fouling by increasing the shear at the membrane surface. A second-generation high-pressure rotating reverse osmosis

Characterisation of membranes in order to determine how clean the membranes are is usually determined by (1) comparing the initial and final clean water flux (2) the product flux in the following run, (3) FTIR analysis, (4) streaming potential and (5) contact angles. However, these techniques do not

Throughout the world consumers demand is expanding for a higher level of water quality and quantity. The source of water greatly varies from country to country and in some areas desalination of seawater is the dominant process for potable water. Desalination is a process that removes dissolved miner

This paper deals with a new sea water intake system which can be used in large desalination plants as it presents numerous advantages over vertical costal wells. Keythemes: Desalination plants; Sea water intake; Horizontal drains and targeted horizontal drilling For a large desalination plant with a

The chlorine resistance of polyamides synthesized using various diamines and acid chlorides was investigated. The retention ratio of molecular weight and the polymer weight loss after the immersion in chlorine solution were used as the evaluation for chlorine resistance. The influence of the diamine

This paper reports the performance of asymmetric polyethersulfone ultrafiltration flat sheet membranes with polyethylene glycol (PEG) of different molecular weight as additives. The membranes were prepared by phase inversion process from casting solution containing polyethersulfone (PES) as polymer,

The transport of iodine through a bulk liquid membrane containing kerosene as solvent and alkaline sodium sulfite solution as receiving phase in a bench scale system was studied. It was found that the pH of feed solution has a major effect on the extraction rate. On the other hand, the concentration

The photocatalytic oxidation of liquid benzyl alcohol by suspension of titanium dioxide (anatase) and sensitized anatase has been investigated under an oxygen atmosphere. Measurements were made over the temperature range 278–303 K, using low pressure mercury lamp. Spectrophotometer measurements have

In electrical installation and building services engineering the power factor is a major consideration in efficient building or system operation. It is the measure of how effectively your equipment is converting electric current from power generation network to useful power output. Your industry can