Waterworks in Sweden that apply conventional chemical surface water treatment are facing a number of challenges, including changes in raw water quality and demands for improved particle removal. The chief objective of this work was to evaluate biological pre-filtration for typical Swedish surface water, regarding the removal of natural organic matter, particles, iron and manganese, and taste an...

Hemodialysis is a commonly used blood purification technique in patients requiring kidney replacement therapy. Sorbents could increase uremic retention solute removal efficiency but, because of poor biocompatibility, their use is often limited to the treatment of patients with acute poisoning. This paper proposes a novel membrane concept for combining diffusion and adsorption of uremic retentio...

A sensitive adsorptive stripping procedure (square wave adsorptive stripping voltammetry), was developed to study the adsorption property of Eosin-Y dye on a working electrode (HMDE) and its determination in selected samples. In addition, differential pulse polarographic and cyclic voltammetric methods were used to evaluate the electrochemical preliminary studies of Eosin-Y dye. By means of usi...

BACKGROUND/AIMS Cytokines play important roles in the pathophysiology of systemic inflammatory response syndrome (SIRS) and sepsis. Therefore, some effective measures to remove cytokines from the bloodstream could be effective in the treatment of SIRS and sepsis. The aim of this study was to evaluate the cytokine adsorptive property of various adsorbents for the purpose of the development of ne...

Acute renal failure (ARF) is a condition that affects up to 20% of patients on intensive care units (ICU). Although the most common causes of ARF are sepsis and septic shock [1], acute loss of renal function may also occur following surgery or as a result of trauma, burns or the use of nephrotoxic drugs [2]. Conventional treatment of ARF includes drug therapy in combination with extracorporeal ...

the adsorptive behavior of the immunosuppressive agent tacrolimus was studied by cyclic and differential-pulse voltammetry on a hanging mercury drop electrode (hmde). the drug was accumulated at hmde and two well-defined peak currents were obtained at -1353 and -1417 mv vs . sce (saturated kcl) in borate buffer (ph 10.0) + 0.1 kcl solution. a voltammetric procedure was developed for the determi...

We read with interest the paper by De Pascale and colleagues [1] and the accompanying editorial [2] on high-dose tigecycline (TGC) in critically ill patients with severe infections due to multidrug-resistant bacteria. We agree that the currently recommended TGC dose (100 mg loading followed by 50 mg twice daily) may be largely insufficient for treatment of such infections and may promote resist...

The removal mechanisms of four natural steroid hormones-estradiol, estrone, testosterone, and progesterone-by nanofiltration (NF) membranes were investigated. Two nanofiltration membranes with quite different permeabilities and salt retention characteristics were utilized. To better understand hormone removal mechanisms, the membrane average pore size was determined from retention data of inert...

The retention and adsorption of bisphenol A (BPA) and 17b-estradiol (E2) were examined using three commercially available ultrafiltration (UF) membranes. A stirred cell operated within a batch dead-end stirred cell was employed to study the solute retention and the membrane flux of solutions both in the absence and presence of natural organic matter (NOM) and single-walled carbon nanotubes (SWN...

Membrane filtration in various forms has become an increasingly used treatment method worldwide for the supply of safe drinking water. The fouling membranes is commonly considered to be major operational limitation its wider application since it leads frequent backwashing and a shortening membrane life, increased production costs. components natural organic matter (NOM) surface waters have been...