Development of Ceramic Filter Membranes from Jordanian Material by Freeze Casting Process and Salt Crystallization for Feed Water Pre-treatment
Development of Ceramic Filter Membranes from Jordanian Material by Freeze Casting Process and Salt Crystallization for Feed Water Pre-treatment
- مجال مشروع البحث–الرئيسي
- العلوم الهندسية
- مجال مشروع البحث–الثانوي
- الهندسة الكيميائية
- المؤسسة العلمية
- جامعة الطفيلة التقنية
- المحافظة
- الطفيلة
- قيمة الدعم
- د.أ 11039
- سنة الدعم
- 2008
- حالة المشروع
- منتهي مع النشر
- البحث منشور
- (1) Al-Rawajfeh, A. E., & Araj, K. (2013). Treatment of wastewater to meet the requirements for cooling water systems in Jordan’s nuclear plants. Chemical and Process Engineering, 34(2).
(2) Al-Rawajfeh, A. E., Al-Whoosh, K., Al, D. R., Al-Maaberah, A., & Tarawneh, A. (2011). Pre-treatment of desalination feed seawater by Jordanian Tripoli, Pozzolana and Feldspar: Batch experiments. Chemical Industry and Chemical Engineering Quarterly/CICEQ, 17(2), 163-171.
(3) A Al Dwairi, R., & E Al-Rawajfeh, A. (2012). Recent patents of natural zeolites applications in environment, agriculture and pharmaceutical industry. Recent Patents on Chemical Engineering, 5(1), 20-27.
(4) Al Dwairi, R. A., & Al-Rawajfeh, A. (2012). Removal of cobalt and nickel from wastewater by using Jordan low-cost zeolite and bentonite. Journal of the university of chemical technology and metallurgy, 47(1), 69-76.
- ملخص عن مشروع البحث
- 1. Scaling and corrosion associated with the use of natural hard water in cooling towers during recirculation pose great problems from both economical and technical points of view, such as decreased system efficiency and increased frequency of chemical cleaning. Treated municipal wastewater (MWW) is a promising alternative to freshwater as power plant cooling system makeup water, especially in arid regions. In this work, hybrid systems of salt precipitation (SP), nanofiltration (NF) and reverse osmosis (RO) were investigated, as potential pretreatment processes for wastewater reuse as cooling water in the planned Jordan nuclear power plants. The As-Samra wastewater was used to calculate the potential of carbonate and sulfate scale formation. The results were compared to scale potentials from Palo Verde wastewater. Four cases were investigated; SP, NF, SP-RO and NF-RO. The SP pretreatment cases showed the highest monovalent to divalent ratio because of a high removal of Ca and Mg and addition of Na from the chemicals of the SP step. The NF pretreatment cases, showed the lowest calcium sulfate scale potential and this potential decreases with the % pretreatment. The scale amount increases very slightly with concentration times when the SP and NF product is desalinated by RO step. http://yadda.icm.edu.pl/baztech/element/bwmeta1.element.baztech-edc31944-4594-4023-ba0a-d74321bce0c7
2. 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 ΔG were negative and within 21 to 26 kJ/mol, while the values of and ΔS were positive, with ΔH within the range of 0.1 to 25 kJ/mol. The values of ΔH, ΔS and ΔG indicate the favorability of physisorption and show that the LDH/T-P-F
composites have a considerable potential as adsorbents for the removal of ions from seawater.
http://www.doiserbia.nb.rs/Article.aspx?id=1451-93721000066A#.YsbdUb1BwdU
3. The zeolites are a popular group of minerals known as hydrous aluminumsilicate. More than forty naturally occurring zeolites were reported by different research groups and more than 150 zeolites have been synthesized. They have been increasingly used in various application areas such as industry, agriculture, and environmental protection. This research paper reviews the recent patents of using zeolites in environment, agriculture and pharmaceuticals. Agriculture has more concern in the last ten years in the world, so zeolites can be used as agricultural and horticultural fungicide and as soil amendment. The use of zeolites in water treatment is an important environmental application. The first application in water purification by adding zeolite crystalloid coagulant (“ZCC”) to water that contains particulate matter that has multivalent ions adsorbed on the surfaces thereof. Other application is a process for the treatment of contaminated water based on the use of zeolites having different characteristics. Utilization of zeolites for treatment of contaminated water under different conditions in environmental applications is also discussed. The review also carries the recent patents available in water treatment process, agricultural and pharmaceutical industry.
https://www.ingentaconnect.com/content/ben/cheng/2012/00000005/00000001/art00004
4. In this work, a mixture of natural zeolitic tuff (Z) and bentonite (B) from Jordan were used to treat wastewater from cobalt and nickel. The results showed that bentonite type performed better efficiency in heavy metal removal than the zeolite type, while the50/50 Z/B mixture type shows the highest percentage removal. The high values of correlation factor indicate that the adsorption ontoZ/B mixture is more accurately described by Freundlich isotherm. The negative value of AGo confirms the feasibility of the process and the spontaneous nature of adsorption. The removal process was well described with the second-order reaction kinetics.
https://www.researchgate.net/publication/239918255_Removal_of_cobalt_and_nickel_from_wastewater_by_using_jordan_low-cost_zeolite_and_bentonite