Ultrafiltration

• Direct UF–RO integration was implemented through an advanced control scheme. • RO concentrate stream was utilized for UF backwash. • Pulse backwash significantly improved overall UF backwash effectiveness. • Self-adaptive UF backwash successfully retarded the progression of UF fouling. A novel RO d

The presence of fine solids and dissolved organics in produced water from Steam-Assisted Gravity Drainage (SAGD) process can potentially block pressure vessels and cause fouling and corrosion in steam boilers. Ceramic membranes in tubular configurations with pore sizes of 20 kDa, 50 nm and 100 nm were

Performance of different pretreatment systems with ultrafiltration (UF) prior to reverse osmosis (RO) for desalting seawater was assessed in this paper. The pilot trial was operated on seawater from Bohai Bay in Tianjin using polyvinylidene fluoride (PVDF) hollow fiber UF membrane. During these experim

In this work, a simple and cost-effective pretreatment upstream an UF membrane operation for the purification of the main olive mill effluent streams (OME) is examined. The raw wastewater was processed by a pH-temperature (T) flocculation process formerly studied at lab scale in previous work. In the p

Experimental results on permeate flux decline with time obtained from ultrafiltration tests were compared with those predicted by means of Song and Elimelech’s model. Feed solutions consisted of aqueous solutions containing 15 g/L of polyethylene glycol 35 kg/mol. All model parameters were theoretic

The concentration of pretreated blackcurrant (Ribes nigrum L.) juice by reverse osmosis (RO) membrane was investigated in this study. The pretreatment steps were crushing, enzyme dosage, pressing and then clarification of the raw juice by ultrafiltration (UF). Polyethersulphone, tubular UF membrane

Modified poly(ether ether ketone) (PEEKWC) and polysulphone (PSU) hollow fibre (HF) membranes were prepared via dry-wet spinning technique through the phase inversion process and characterised by pure water permeability, dextran rejection and scanning electron microscopy (SEM). The performance of th

Application of helical Couette Á Taylor flow (CTF) for reduction of membrane fouling in the process of radioactive wastes treatment was considered. The experiments were carried out with model solutions of cobalt ions (Co2+). Ultrafiltration process combined with complexation with polyacrylic acid or

Water scarcity makes industrial wastewater reuse necessary, especially in those industries characterized by both high water consumptions and extremely polluted effluents as textile industries. Membrane technologies are very efficient to treat industrial effluents for water reuse successfully, since

Whey is the main by-product obtained from cheese production. It contains a high concentration of organic matter, mainly proteins and lactose, and mineral salts. Usually, pre-treated whey was discharged into sewer together with the other liquid effluents from the dairy industry. However, the increasi