At this study, thallium (I) ion-imprinted polymer, as a novel sorbent for Tl (I) and comparison with Tl(III) ion-imprinted polymer has been synthesized. This sorbent for preconcentration and solid-phase extraction of Tl(I) ions from aqueous solutions, used. Through preparing the binary complex of Tl(I) ions with 5, 7-dichloroquinoline-8-ol (DCQ) the particles of thallium (I) Ion-Imprinted P...

Irrigation water is limiting for crop production in arid and semi-arid areas. Furthermore, excess nitrogen (N) application is a source of groundwater contamination. Partial root drying irrigation (PRD) can be used as water saving technique and a controlling measure of groundwater N contamination. The objectives of this investigation were to evaluate the effect of ordinary furrow irrigation (OFI...

The effects of post-processing treatments on infiltration and defiltration of liquids in acid-leached zeolite were investigated. The infiltration pressure, which reflects the effective degree of hydrophobicity of the nanopore surface, and the defiltration pressure, which dominates the system hysteresis, can be controlled in broad ranges by adjusting anion species and liquid composition, and/or ...

Leaching of arsenic from brick manufactured from arsenic and iron sludge has been investigated in this study. TCLP result shows that leached metal concentrations are far below the regulated TCLP limits and the quantities of metal leached from sludge are less than those from dried sludge. The results of Atterberg limits tests of moulded sludge-clay mixtures indicated that both plastic index and ...

This study presents the result of using melting to recover both industrial sludge slag (the main constituent of which is calcium fluoride) and water works sludge slag as fine aggregate in cement. The main characteristics of both slag and cement mortars were measured to evaluate the feasibility of using slag as aggregate. In this study, the slag replacement ratios were 0, 10, 20, 30, 40, and 50%...

Resins containing immobilized Staphylococcal Protein A (PA) are widely used in the commercial purification of recombinant human monoclonal antibody (rhuMAb IgG) biotherapeutics. Therefore, a sensitive assay for leached PA is needed to ensure that PA is not present at unacceptable levels as an impurity in the final product. PA impurities are measured by an ELISA using chicken anti-PA antibodies....

A column study was conducted to assess the potential Cr, Ni, Cu, Zn, Cd and Pb movement through a reconstructed soil profile to which surface composted sewage sludge was applied. Sewage sludge was mixed into the top 100 mm of each column at the rates of 357 (H), 223 (M) and 22 Mg·ha-1 (L). Treatment H was calculated according to the critical soil concentration and treatments M and L were calcul...

A major degradation scenario within safety assessment analysis of nuclear waste repositories is decalcification of cementitious materials due to long-term contact with groundwater. Understanding the changes in Physical and Chemical properties of cementitious barriers is of high importance. In order to decrease the uncertainty in the assessments due to extrapolating short term data sets, acceler...

Mobilization of contaminant Pb and other cations from a weathered andesite was examined by conducting water–rock leaching experiments to measure release rates of the major and minor elements found in the bulk rock. Experiments were conducted for over 600 h, at pH 3 and 6.5, as a function of grain size, and in the presence and absence of a common subsurface bacterial species, Bacillus subtilis. ...