The aim of this work is to design and integrate an optimized batch membrane process in a conventional purification process used for the treatment of tannery wastewater. The integration was performed by using two spiral wound membrane modules in series, that is, nanofiltration and reverse osmosis, as substitutes to the biological reactor. The membrane process was designed in terms of sensible fo...

A "sandwich" type polyoxometalate catalyst ([MeN(n-C8H17)3]12[WZn3(ZnW9O34)2]) was very efficiently recycled by nanofiltration with almost quantitative retention, using an alpha-alumina supported mesoporous gamma-alumina membrane.

Reverse osmosis is efficiently used for producing drinking water from groundwater sources containing dissolved impurities, including fluoride, ammonia, lithium, strontium, boron, arsenic, etc. The principal problems of utilizing reverse include scaling on membrane surfaces, concentrate discharges, and low permeate TDS that often require conditioning. main goal this work was to demonstrate the v...

Environmental Engineering, University of Wollongong, Wollongong, NSW 2522, Australia ph +61 2 4221 3385, fax +61 2 4221 4738, [email protected] Chemical Process Engineering Research Institute, P.O. Box 361, 57001, Thermi, Greece ph ++302310498181, fax ++302310498189 [email protected] [email protected] Chemical & Environmental Engineering, University of California, Riverside, CA 9...

in this research, the chloroform (chcl3) removal effectiveness of two water treatment systems including membrane technology and granular activated carbon (gac) adsorption were studied. two bench-scales were designed and set up: 1) nanofiltration (nf) spiral-wound modules and 2) gac adsorption column. chloroform was considered as trihalomethanes (thms) basic indicator compound. the inlet and out...

We present the mean value cross decomposition algorithm and its simple enhancement for the two-stage stochastic linear programming problem with complete recourse. The mean value cross decomposition algorithm employs the Benders (primal) subproblems as in the so-called “L-shaped” method but eliminates the Benders master problem for generating the next trial first-stage solution, relying instead ...

Deep neural networks are vulnerable to adversarial examples, which can fool deep models by adding subtle perturbations. Although existing attacks have achieved promising results, it still leaves a long way go for generating transferable examples under the black-box setting. To this end, paper proposes improve transferability of and applies dual-stage feature-level perturbations an model implici...

in order to study the efficiency of dual-purpose herbicides at different stages of wheat (triticum aestivum), an experiment was conducted at shoushtar in 2012. the experiment was factorial with randomized complete block design arrangement of factors and four replicates. factors were dual-purpose herbicide including apyros (sulfosulfuron), total (metsulfuron methyl+sulfosulfuron), chevalier (iod...