Research Abstracts

Ethylenediaminedisuccinic acid (EDDS) was used to dissolve magnetite reductively. Fe2+ ions increased the dissolution rate, and this increase depended on the solution acidity, temperature and [EDDS]:[Fe2+] ratios. The EDDS–Fe2+ complex was able to dissolve magnetite film coated on an iron surface. I

A lthough the textile plant effluent was treated b y a biological treatment process, the quality was n ot sufficient to reuse it on site. The membrane process (RO and NF) was successfully used to obtain a permeate quality which allowed water r euse in the dyeing process, but this process r equired a

The variations of the limiting flux during skimmed milk ultrafiltration were studied under various physicochemical environments (pH, ionic strength, chemical nature of added salts). The evolutions were explained taking into account the physicochemical characteristics (size distribution, zeta potenti

Indoor experiments were performed for the vertical multiple-effect diffusion-type solar still that consists of a number of vertical partitions in contact with saline-soaked wicks with narrow air gaps between partitions, coupled with a heat-pipe solar collector, using heating lamps instead of actual

The concept DESIRES® is presented as a floating, but moored, DESalting Island on Renewable multi-Energy Supply. It is estimated to produce 5–500 Mm3/y of high quality fresh water from seawater, at the costs of US$ 0.88– 1.32/m3. This is achieved by using: (a) an artificial, floating island 10–100 km

This paper studied the removal of fluoride from drinking water by a membrane coagulation reactor, and aluminum sulfate was used as the major chemical. In a jar test, the optimum pH value for removal of fluoride was found in the range from 6.0 to 6.7. In the laboratory-scale test, when proper dosages

This study attempted to identify fouling-causing material during membrane filtration of surface water. For this purpose, two different coagulation conditions were designed: the optimum removal of turbidity-causing particles (Case I) and the optimum removal of organics (Case II). It was hypothesized

Wastewater from olive mills in Jordan has been characterized and treated using a lab scale anaerobic sequencing batch reactor (ASBR). It was found that this wastewater has an average COD:N:P ratio of about 900:5:1.7. At this ratio, the wastewater was found to have sufficient nutrients that it was no

Nanofiltration of process liquors from viscose-type textile fibre production was investigated using a laboratoryscale crossflow test apparatus. Feed solutions contained about 200 g/l sodium hydroxide and a high concentration of hemicellulose as a contaminant originating from the raw material wood. T

Effective use of chlorine dioxide as an alternative disinfectant in water treatment may require removal of the by! product chlorite ion (ClO2 ). The goal of this research was to investigate the use of ferrous iron (Fe2+) for the chemical ! reduction of ClO2 from drinking water in order to define the