PRE-TREATMENT OF DESALINATION FEED SEAWATER BY JORDANIAN TRIPOLI, POZZOLANA AND FELDSPAR: BATCH EXPERIMENTS

被引：8

作者：

Al-Rawajfeh, Aiman E. ^{[1
]}

Al-Whoosh, Khaldoon ^{[1
]}

Al Dwairi, Reyad ^{[1
]}

Al-Maaberah, Ahmad ^{[2
]}

Tarawneh, Amer ^{[2
]}

机构：

[1] Tafila Tech Univ, Dept Nat Resources & Chem Engn, POB 179, Tafila 66110, Jordan

[2] Tafila Tech Univ, Dept Chem, Tafila 66110, Jordan

来源：

CHEMICAL INDUSTRY & CHEMICAL ENGINEERING QUARTERLY | 2011年 / 17卷 / 02期

关键词：

pre-treatment; feed seawater; ceramic filters; Tripoli; Pozzolana; Feldspar; SORPTION; WATER; ADSORPTION; REMOVAL; TUFF;

D O I：

10.2298/CICEQ100827066A

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

In this research, composites of layered double hydroxide (LDH) with three Jordanian natural raw materials: Tripoli (T), Pozzolana (P) and Feldspar (F) were prepared by co-precipitation and have been used for feed seawater pre-treatment. The data reveals that percent adsorption decreased with increase in initial concentration, but the actual amount of adsorbed ions per unit mass of LDH/T-P-F increased with increase in metal ion concentrations. The values of Delta G were negative and within 21 to 26 kJ/mol, while the values of and Delta S were positive, with Delta H within the range of 0.1 to 25 kJ/mol. The values of Delta H, Delta S and Delta G indicate the favorabllity of physisorption and show that the LDH/T-P-F composites have a considerable potential as adsorbents for the removal of ions from seawater.

引用

页码：163 / 171

页数：9

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