Reverse osmosis

An RO water desalination system consists of the pre treatment section, the desalination section and the post treatment section. In the new design plants different energy recovery systems are adopted to reduce the energy consumption of desalination section. Among the various energy recovery systems t

Concentrated must is a natural sweetener in wine production, and in addition, it is a vitamin- and aroma-rich drink. In this study the basis of a complex membrane process was developed for must concentration. Modeling the experimental results and using recent economic data, the optimal process param

Whey is a by-product of cheese production which is used mainly as animal feed or released into the wastewater treatment process, although it is rich in valuable components. Recent developments in membrane filtration have provided exciting new opportunities for large-scale protein and lactose fractio

The aim of this study was to investigate membrane filtration for must processing and to carry out a complex method for preservation and concentration of grape must. In the experiments white and red grape-juice samples were used. After the transportation of the samples in to the laboratory the impact

Driving force membrane processes seem to be most useful for water treatment. Reverse osmosis, nanofiltration and ultrafiltration have been applied to phthalate removal from water. In the experiment three membranes RO-DS3SE were tested for reverse osmosis, membrane NF-DS5DK for nanofiltration and UF-

The importance of wastewater treatment in the food industry is growing nowadays, because of the rising cost of water and because of environmental pollution. The aim of this study was to decrease the chemical oxygen demand (COD) of two different wastewaters originated from the food industry. If the t

The work aimed to determine the effectiveness of the treatment of wastewater generated by the meat industry in a hybrid system combining biological methods of activated sludge (in an SBR reactor) and reverse osmosis. The tests carried out on the wastewater from the meat processing plant Uni-Lang in

The contamination of water by sulphate is a pollution problem that has increased in severity in recent decades. The behaviour of cellulose acetate membranes in the treatment by reverse osmosis of aqueous sulphate solutions is described. Experimental essays were performed in a commercial cross flow t

Cotton dyeing using reactive dyes generates warm wastewater strongly colored, containing suspended solids,concentrated NaCl and widely varying acid amounts. Dyeing one kilogram of cotton with reactive dyes requires from70 to 150 L water, 0.6 kg NaCl and 40 g reactive dye. We have worked out a proces

Operation of an experimental RO plant connected directly to a wind system without energy storage was studied. The data obtained confirm the wide spectrum of operation of the plant with respect to the power available and the operation of the system. The development of an RO plant for variable charges