Research Abstracts

Two types of membranes, the sulfonated PEEK-WC (poly(oxa-p-phenylene-3,3-phthalido-p-phenylene-oxyphenylene) (SPWC) and Krytox-Si-Nafion® (KSiN) composite membranes are proposed for DMFC applications. The properties based on water uptake, ion exchange capacity, proton conductivity, gas permeability,

The corrosion of metal pipes carrying potable water is a universal problem. The rate of metal attack depends on a number of factors, the most important of which is the nature of water. Desalinated water is known to be very aggressive. Its aggressivity exceeds that measured in naturally occurring riv

Dissolved biochemical demand (BOD), total organic carbon (TOC) and NH4-N were analysed in seven sampling points in a pond–wetland system treating raw wastewater from 2001 to 2005 to determine the efficiency of its constructive elements. The wetland consists of horizontal flow stone filters, free wat

A newly synthesized azo compound, namely 8-quinolinol-5-azoantipyrine (HQAP), was studied as an inhibitor for the corrosion of mild steel in 1M HCl. Results of weight loss and Tafel polarisation measurements show that this compound has fairly good inhibiting properties for steel corrosion in acidic

Fouling and scaling are the most serious problems in membrane processes. In sea/brackish water applications, pretreatment of RO feed water is the key step in designing the plants to avoid membrane fouling and scaling. Recent developments in pretreatment processes are more adapted to raw water qualit

The enhancement of water quality by constructed wetland systems is increasingly practiced world wide. The use of a treatment train consisting of an up-flow anaerobic sludge blanket (USAB) reactor followed by free water surface and subsurface flow constructed wetlands in series has been investigated.

Environmental effects are one of the main concerns of massive desalination facilities.To reach the objective of no brine discharge the salt from seawater must be completely separated and obtained as a secondary and valuable product. If no CO 2 emission increase is desired, the power source must be a

The characterization of the flow inside an experimental flat membrane module with a smooth rotating disk was performed. The module consists of a disk rotating at speeds up to 3000 rpm inside a cylindrical housing equipped with a stationary circular flat membrane. The characterization was carried out

This paper discusses several options to achieve sustainability in wastewater treatment in urban areas of the Mediterranean region. The first was by decentralizing the treatment rather than installing expensive sewer systems that combine and increase the volume of the waste. The next involved choosin