Research Abstracts

The morphology, interspace and surface properties of a novel nanofiber membrane are characterized by scanning electron microscopy (SEM), pore percent and contact angle. The membrane, named M-1, is prepared from chloridized polyvinyl chloride by high-voltage electrospinning process. The removals of d

The increasing contamination of soil and waters with volatile organic compounds, such as halogen derivatives or petrochemical hydrocarbons, poses a serious hazard due to the carcinogenic effect of most of the compounds. Their low concentrations as well as the presence of other hindering substances m

Asymmetric blend hollow fiber membranes had been made from a new casting dope containing poly(vinylidene fluoride) (PVDF)/Thermoplastic polyurethane (TPU)/Polyvinylpyrrolidone (PVP) N, N-dimethylacetamide (DMAc). The effect of hydrophilic additive, polyvinylpyrrolidone, on the morphology and crystal

A very great quantity of phosphate present in wastewater, may reach the aquatic environment, and can lead to the pollution of the environment. The phosphate must be removed from domestic and industrial effluents before their dispersion and dilution in the environment. The aim of this paper was to in

Orthoboric acid dissociation, which affects boron rejection in RO membranes, depends on salinity, temperature and pH. Lately, increasing demand of permeate low boron concentration raises questions regarding the optimal method for boron removal in both technical and economical aspects. Several method

Trichloroethylene (TCE) is a representative dense nonaqueous phase liquid (DNAPL) in groundwater. TCE as a form of free fluid has been treated by surfactant-enhanced aquifer remediation (SEAR). After application of SEAR, groundwater contains little amount of residual TCE and surfactant. Residual TCE

Reactive dyes are non-degradable and toxic to environments and human being, and their solutions have some color even after wastewater treatment. To remove toxic dyes, adsorption is common choice. In this study, to improve the adsorption capacity, the effect of cationic surfactant was studied to remo

Slag, which consists of calcium oxide, aluminium oxide, and other metal oxides, is an abundant by-product in steel-making process. It has been used as adsorbents to remove various heavy metals and the major removal mechanisms are precipitation and adsorption on the surface of metal oxide. However, t

This work refers to the characterization of activated carbon obtained by chemical activation by KOH and ZnCl2 of a lignocellulosic material, by the techniques of adsorption of nitrogen at 77 K and immersion calorimetry in cyclohexane and water. The obtained results show that the enthalpy of immersio

An efficiency of humic acids (HA) removal from aqueous solutions by complexation-ultrafiltration (COUF) process was investigated. The rejection of commercial HA (Aldrich) in the presence of two weakly basic, cationic water-soluble polymers poly(diallyl dimethylammonium chloride) (PDADMAC) and chitos