Research Abstracts

High purity gases and volatile substances are valuable raw materials in a wide range of electronic, pharmaceutical and petrochemical industry. Membrane technology appears to be promising for high purification, because membrane units are small, compact and operating with low energy consumption. They

The paper deals with evaluation of adsorption-membrane filtration (AMF) hybrid process in removal of trace amounts of boron from the first stage RO permeate. Finely ground boron selective resin, Dowex XUS 43594.00, was used as sorbent while polypropylene capillaries with pore dimension of 0.4 mm as

The separation of volatile organic compounds (VOCs) from chemical waste streams containing salts is an interesting pervaporation (PV) application for recovery purposes. In this study, the separation of n -butanol (n BuOH) by PV was investigated, and the influence of temperature, membrane choice, fee

The aim of the study was to investigate the simultaneous removal of p -cresol and Cr(III) ions using a membrane contactor enhanced by a micellar solubilization. The investigations of solutes removal were performed taking advantage a polysulfone capillary membrane contactor in a counter-current mode

The removal of zinc from synthetic wastewater was conducted by micellar-enhanced ultrafiltration (MEUF), using the anionic surfactant sodium dodecyl sulfate (SDS). A two-level full factorial design was used in order to analyze the effect of pressure, membrane nominal molecular weight limit (NMWL), z

In the present study, the possibility to reuse the indigo dyeing rinsing wastewater originating from a denim textile mill was investigated. Coagulation and filtration processes were selected as the pretreatment alternatives and applied to dyeing wastewater samples. Both physicochemical pretreatment

Starch hydrolysates were prepared by enzymatic hydrolysis with a -amylase and mixture of glucoamylase and pullulanase. Additionally the so-called filtration enzyme action (lysophospholipase) was introduced for starch hydrolysates production. Enzymatic hydrolysates were purified on filtration unit (A

This paper focuses on the applicability of microfiltration (MF)/ultrafiltration (UF) as a pretreatment to nanofiltration (NF) for the reclamation of rinsing waters of indigo dyeing process. Two different MF alternatives, single 5 mm MF and sequential 5 mm'/0.45 mm MF, were evaluated as prefiltration

The PX-220 Pressure Exchanger (PX) energy recovery device (ERD) was introduced to the SWRO market by Energy Recovery, Inc. (ERI) in 2003. Recipient of the Sidney Loeb award for innovation in 2006, the PX device has become standard equipment in SWRO applications, installed or specified in over 400 pl

Most large seawater reverse osmosis (SWRO) desalination plants built before 2002 incorporated turbine-type energy recovery devices (ERDs) that were connected with a shaft to the high pressure pump. Both the pump and the ERD had best efficiency points corresponding to specific flow rates and pressure