## Bei der Brack-und Meerwasserentsalzung werden Umkehr-Osmose
Reverse osmosis in seawater concentration
✍ Scribed by D Sambrailo; B Kunst; H Iveković
- Publisher
- Elsevier Science
- Year
- 1983
- Tongue
- English
- Weight
- 452 KB
- Volume
- 46
- Category
- Article
- ISSN
- 0011-9164
No coin nor oath required. For personal study only.
✦ Synopsis
Reverse osmosis as the first step in the process of seawater concentration has been investigated.
The brine of up to 10 % TOS was aimed at applying pressures not higher than 60 bars. Such a process was shown to be feasible when reverse osmosis membranes of moderate solute rejections were used. The effects of various operating pressures and membranes of various characteristics have been evaluated using the model and the real system. The results were compared in terms of energy requlrements for the concentration process.
APPLICATION
D'OSMOSE INVERSE DANS LE. PROCESSUS DE LA CONCENTRATION DE L'EAU DE MER On a &udie la possibilitg d'application d'osmose inverse dans le processus de la concentration de l'eau de mer. Le but de cette recherche Ctait d'obtenir la saline qui contient TDS jusqu'au 10 % et que la pression utilise' ne soit pas plus grande que 60 bar. Les resultats ont montrg q'on peut obtenir un effet satisfaisant en utllisant des membranes avec des caracteristiques mode&es de la separation. L'influence des gi!ferents pressions actifs et des membranes avec des differents caracteristiques ont ete examinees sur la separation de la solution modele et sur l'eau de mer. Les resultats obtenus ont bti compar& par rapport a la consomation d'energie pour le processus d'augmentation de la concentration. UMKEHROSMOSE IM PROZESS DER MEERWASSERKONZENTRIERUNG Mittels Umkehrosmose wurde die MBglichkeit des Meerwasserkonzentrierungsprozesses untersucht. Der Ziel war ein Konzentrat bis 10 % TDS bei einem Druckbereich his 60 bar zu kriegen. Die Untersuchungen zeiogten ein zufriedenstellendes Effekt be1 gebrauch von Membranen mit mittleren SalzrijfkhaltevermUgen. Es wurde die Einfliisse von Druckverhlaltnissen und Membranen mit verschiedenen Saizriickhalteverm8gen mittels Modelllisungen und Meerwasser untersucht. Die Ergebnisse wurden im Bezug des Energieverbrauchens fiir das Konzentrlerungsprozess verglichen.
📜 SIMILAR VOLUMES
The product water recovery is introduced as a figure of merit in assessing the economic viability of two-stage reverse osmosis desalination at high feed salinities. Design calculations on a two-stage seawater desalination plant in Kuwait using the GKSS plate system are included. ## ZUSAMMENFASSUNG
## Most comnerclal seawater reverse osmosis plants deslgned to date are driven using a feed pressure In the range of 800-1000 psig (5500-6900 kPa). Membranes rated at 1200 psig (8300 kPa) are now available and it is reasonable to expect membranes capable of even higher pressure operatton \n the ne
The need for appropriate technical specifications for building R-0. plants is discussed in this paper. ## Especially in the Middle East region, where the demand for R.O. plants is increasing, the requirements must be carefully defined, particularly in view of the high salinity and high temperatu