Research Abstracts

Measurements of contact angle, zeta potential, and pore size distribution for clean, cationic surfactant coated, and organic fouled membranes, were conducted to obtain membranes properties, from perspectives of organic fouling mitigation. Interaction between natural organic matter (NOM) and the memb

Interest in desalination using membrane processes has increased with the growth of membrane science and technology. Fouling of ion exchange membranes is one of the most significant considerations in the operation of the electrodialysis desalination process. The influence of the adsorption capacity o

A silica membrane was fabricated using the aerosol flame deposition (AFD) method under different sintering temperatures. It was characterized, in terms of roughness, pure water permeability, contact angle, zeta potential, and effective pore size distribution. Membrane performance was evaluated with

Biofouling due to microbial growth on the RO membrane adds significant osmotic pressure and causes frequent chemical cleaning which reduces the life of RO membrane. Biocides such as chlorine, ozone, and UV have been used to control microbial growth correlated to the biological fouling of the RO memb

To increase the surface area of electrodes for electrosorption, porous carbon electrodes were fabricated using a wet phase inversion method. A carbon slurry consisting of a mixture of activated carbon powder (ACP) and polyvinylidene fluoride solution was cast directly on a graphite sheet. The cast f

Organic matter dissolved in seawater should be analyzed carefully since organic fouling is one of the main reasons for low performances of seawater reverse osmosis (SWRO) processes. Because of various ionic constitutions with high concentrations in seawater, the seawater organic matter analysis is d

Scaling and fouling of membranes are an on-going performance issue for most plants This presentation outlines innovations in speciality chemicals designed to inhibit membrane scaling and fouling and to clean membranes where deposition has occurred. There is an increasing trend to treat recycled wast

The pretreatment of raw seawater is necessary to minimize the organic fouling of seawater reverse osmosis (SWRO) membranes. To predict the membrane fouling of the pretreated seawater, the modified fouling index (MFI) with ultrafiltration (UF) was investigated in terms of molecular weight distributio

The Center for Seawater Desalination Plant (CSDP), which was established in December 2006, launched its R&D project [seawater engineering and architecture of high efficiency reverse osmosis (SEAHERO)] in the middle of 2007 and aimed to get world top-level seawater reverse osmosis (SWRO) plant techno

A novel osmotic membrane bioreactor (OsMBR) is presented. The system utilizes a submerged forward osmosis (FO) membrane module inside a bioreactor. Through osmosis, water is transported from the mixed liquor across a semi-permeable membrane, and into a draw solution (DS) with a higher osmotic pressu