Abstract In this work, pilot-scale nanofiltration was used to obtain aqueous solutions rich in hydroxytyrosol and tyrosol from olive oil by-products. A large-scale simple process involving mill standard machinery (blender decanter) for the pomace pre-treatment with water. The extract then directly fed a unit concentrated by reverse osmosis. Final concentration factors ranged between 7 9 4 tyros...

Although bentazon is widely used as an agricultural herbicide, it is harmful to humans and poses many environmental threats. This study focused on the treatment of wastewater contaminated with bentazon pesticides using membrane technology. In this regard, low-pressure reverse osmosis (RO) was employed as it has already been used in the removal of other micro-pollutants. The effects of process v...

A versatile method was developed for the quantitative analysis of semi-volatile linear aliphatic hydrocarbons in the n-C10 to n-C32 range and 16 polycyclic aromatic hydrocarbons (PAH) in hydraulic fracturing wastewaters using solid-phase extraction (SPE) on disposable octadecyl-bonded silica (C18) cartridges followed by gas chromatography-mass spectrometry. Matrix spikes revealed SPE recovery r...

The demand is rising for desalination technologies to treat highly saline brines arising from hydraulic fracturing processes and inland desalination. Interest is growing in the use of electrical desalination technologies for this application. The hybridization of electrodialysis (ED) with reverse osmosis (RO) allows high salinities (beyond the range of RO alone) to be reached while avoiding the...

Improving the recovery of desalination processes can have economic benefits, as feed and brine volumes are minimised. Furthermore, volume minimisation (BVM) simplifies treatment prior to disposal hence, alleviates potential environmental concerns. However, BVM is not widely applied, it generally more energy intensive costly. This may change in future, new high-recovery membrane processes, such ...