Treatment using reverse osmosis of an effluent from stainless steel manufacture

Treatment of Concentrated Nutrients in reject Wastewater of Reverse Osmosis Process treating Tertiary Effluent from Convention

Wastewater reclamation and its reuse for beneficial purposes is a common goal in all countries particularly in water stressed countries around the world. Cutting edge technologies such as reverse osmosis (RO), micro and ultra filtration etc. are often used to purify wastewater effluent generated in conventional systems. However, the rejected wastewater from these processes is usually laden with...

The Elimination of Toluenediamine from Aqueous Solution by Reverse Osmosis

Toluene diamine (TDA) is a main carcinogenic aromatic pollutant in some industrial wastewater. In this study, the reverse osmosis with DSS-HR98PP as the membrane was employed for the removal of TDA in an aqueous environment. The Box–Behnken Design (BBD) of the experimentwas used to consider the effect of operational variables such as pressure, pH and the feed volu...

Bentazon removal from aqueous solution by reverse osmosis; optimization of effective parameters using response surface methodology

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...

Chemical Surface Treatment of Stainless Steel

Forward Osmosis as a Pre-treatment to Reverse Osmosis

This paper presents some aspects of forward osmosis coupled with reverse osmosis using a recirculating draw solution, to produce desalinated water or for dewatering/concentrating a feed stream, with some data provided from a number of operational sites. Many of these aspects are applicable to other osmotic processes and provide an insight into where they may be appropriately considered. A compa...