Adsorption

• Adsorption/fouling-layer model analyzes the flux decline during RO filtration. • The model provided a qualitative appreciation of the flux decline. • The factors of filtration time and membrane flux are considered in the fouling model. • The main interfacial interaction in each fouling step was discuss

This study focuses on the water quality assessment (feed, product and brine) of the pilot adsorption desalination (AD) plant. Seawater from the Red Sea is used as feed to the AD plant. Water quality tests are evaluated by complying the Environmental Protection Agency (EPA) standards with major prima

The comparative study was conducted to investigate the performance and removal efficiencies of PFOS and PFOA in MBR and PAC-MBR. Solid phase extraction (SPE) followed by HPLC coupled with tandem MS (HPLC/MS/MS) was applied to quantitatively identify PFOS and PFOA in aqueous and sludge samples. Remova

Laboratory scale experiments were conducted to investigate the removal mechanisms of trace organic contaminants using a submerged MBR system. The system was equipped with a Zenon ZW-1 membrane module. Bisphenol A and sulfamethoxazole were selected as model trace organics representing endocrine disru

A continuous adsorption study in a fixed-bed column was carried out by using phoenix tree leaf powder as an adsorbent for the removal of methylene blue (MB) from aqueous solution. The effect of flow rate, influent MB concentration and bed depth on the adsorption characteristics of adsorbent was inve

A new composite material able to remove hexavalent chromium [Cr(VI)] ions from aqueous solutions was obtained by reacting poly(4-vinylpyridine) (P4VP) with bentonite clay [Bf]. Two composite samples, Bf0.06 and Bf0.3, were prepared by varying initial amounts of P4VP. Thermogravimetric analysis revea

This paper describes the interaction and removal of some heavy metal ions such as Ni(II) and Cu(II) from aqueous solution at constant pH (6.0) and 0.01 M NaClO4 ionic strength using raw clay mineral. The experimental results were analysed in terms of Langmuir, Freundlich and Redlich–Peterson isother

This study focused on reducing membrane fouling by adding different adsorbents (powder activated carbon (PAC), zeolite) or coagulants (polyamide, polyaluminum chloride) in a microfiltration process treating anaerobic digestion effluent. The results indicated that the magnitude of fouling reduction w

Approximately 857,000 tonnes of tea is produced in India per year, which is 27.4% of total world production. After processing, tea factory waste is about 190,400 tonnes. Batch adsorption studies have been carried out for evaluating the suitability of tea factory waste as a low-cost adsorbent for the

Microfiltration (MF) does not remove color, natural organic matter (NOM) or synthetic organic chemicals (SOCs). It must be combined with other conventional technologies such as activated carbon adsorption to overcome some of these limitations. The effects of granular activated carbon (GAC) addition