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Al-Azhar Bulletin of Science
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Khalil, E., Farag, A., El-Nagar, K., Shehata, A., Ellaithy, R. (2014). EXTRACTION OF SOME CALCIUM AND MAGNESIUM SALTS FROM WASTE WATER OF REGENERATION PROCESS IN DEMINERALIZATION PLANT. Al-Azhar Bulletin of Science, 25(Issue 1-A), 1-6. doi: 10.21608/absb.2014.24002
E. M. Khalil; A. B. Farag; Kh. El-Nagar; A. I. Shehata; R. A. Ellaithy. "EXTRACTION OF SOME CALCIUM AND MAGNESIUM SALTS FROM WASTE WATER OF REGENERATION PROCESS IN DEMINERALIZATION PLANT". Al-Azhar Bulletin of Science, 25, Issue 1-A, 2014, 1-6. doi: 10.21608/absb.2014.24002
Khalil, E., Farag, A., El-Nagar, K., Shehata, A., Ellaithy, R. (2014). 'EXTRACTION OF SOME CALCIUM AND MAGNESIUM SALTS FROM WASTE WATER OF REGENERATION PROCESS IN DEMINERALIZATION PLANT', Al-Azhar Bulletin of Science, 25(Issue 1-A), pp. 1-6. doi: 10.21608/absb.2014.24002
Khalil, E., Farag, A., El-Nagar, K., Shehata, A., Ellaithy, R. EXTRACTION OF SOME CALCIUM AND MAGNESIUM SALTS FROM WASTE WATER OF REGENERATION PROCESS IN DEMINERALIZATION PLANT. Al-Azhar Bulletin of Science, 2014; 25(Issue 1-A): 1-6. doi: 10.21608/absb.2014.24002

EXTRACTION OF SOME CALCIUM AND MAGNESIUM SALTS FROM WASTE WATER OF REGENERATION PROCESS IN DEMINERALIZATION PLANT

Article 1, Volume 25, Issue 1-A, June 2014, Page 1-6  XML PDF (573.14 K)
Document Type: Original Article
DOI: 10.21608/absb.2014.24002
Authors
E. M. Khalil* 1; A. B. Farag2; Kh. El-Nagar3; A. I. Shehata4; R. A. Ellaithy5
1Departments of Chemistry, Faculty of Science, Helwan University.
2Departments of Chemistry, Faculty of Science, Helwan University
3Chemical Metrology Division, National Institute for standard.
4Central Chemical lab. Egyptian Electricity Holding Company
5El tebbin Power Station, Cairo Electricity Production Company.
Abstract
The produced water from cation exchanger regeneration processes has been enriched by calcium and magnesium salts
(very hard water). In this research, extraction of calcium and magnesium salts in the form of magnesium and calcium hydroxide (Lime) will carry out during adjusting pH of cation regeneration wastewater by adding anion regeneration wastewater. The extracted salts were dried and characterized by using chemical analysis, IR spectrum and X-ray analysis. Results indicated that an increase in the addition of anionic wastewater to cationic wastewater up to 60% caused a decrease in total hardness, magnesium hardness and calcium hardness concentrations in cationic wastewater up to 80%. However, the maximum percentage recovery of calcium salts obtained at pH values between10-11, while those of magnesium salts were between11-12. 
Keywords
waste water; hardness; Cation exchanger; calcium; Magnesium; Regeneration
Main Subjects
Chemistry
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