Authors:Jesus Molina, Gyula Vatai, Eszter Fogarassy, and Erika Bekassy-Molnar
The problem of wastewater with high content of salt is a frequent problem for the environmental authorities, because the existing municipal and industrial wastewater treatments are incapable to remove effectively inorganic compounds. In this paper an attempt was made to report new results with reverse osmosis (RO) and nano-filtration (NF) membranes to remove salts from fermentation wastewater.The basic target of the experiments was to find an industrial membrane, which can separate salts from fermentation wastewater with a high efficiency and the concentration of the clean water should satisfy the environmental regulation: salt concentration ≤ 2500 mg/L and COD concentration ≤ 1200 mgO
/L. RO process exhibited good salt rejection and effective removal of organics. The other aim of this study was to model the osmotic pressure and permeate flux in the wastewater using basic expressions, like van’t Hoff law and Rautenbach equations. The combination of the above models with experiment based constants gave a good tool for modeling salty wastewater.
Authors:Péter Bor, József Csanádi, Gábor Veréb, Sándor Beszédes, Zita Šereš, Zsuzsanna László, Cecilia Hodúr, and Szabolcs Kertész
, L. H. , Zhu , Z. , Wan , Y. , Jaffrin , M. Y. ( 2012 ) Treatment of dairy effluent by shear-enhanced membranefiltration: The role of foulants . Separation and Purification Technology , 96 : 194 – 203
Authors:David Tjandra Nugraha and Fransiscus Sabatino Bata
biochemistry of seeds in relation to germination . Springer , New York , p. 62 . Csighy , A. , Koris , A. , and Vatai , G. ( 2018 ). Diafiltration based cow’s milk partial demineralization by membranefiltration process – parameter and technology