UHT Condensate Recovery by Reverse Osmosis: A Pilot-Plant Study

详细信息    查看全文

• 作者：Adri谩n Su谩rez ; Tatiana Fidalgo ; Miguel A. Berdasco ; Francisco A. Riera
• 刊名：Industrial & Engineering Chemistry Research
• 出版年：2014
• 出版时间：October 1, 2014
• 年：2014
• 卷：53
• 期：39
• 页码：15237-15244
• 全文大小：334K
• ISSN：1520-5045

文摘

Real ultrahigh-temperature (UHT) flash cooler (FC) condensates obtained in the dairy industry were processed in situ using a reverse-osmosis (RO) membrane (Duratherm HWS 4040 HR; 8.2 m² filtration area). Semicontinuous trials were performed to estimate the maximum volume concentration rate (VCR) that fulfils the permeate specifications for reuse as boiler water. Then, long-term continuous experiments (100 h in duration) were carried out at a constant permeate flow rate (40 L h^鈥? m^鈥?), and the conductivity, chemical oxygen demand (COD), pH, and Ca²⁺ concentration were monitored. An activated carbon column (ACC) was used to reduce the organic charge of the permeate.