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العنوان
Using of Green Oxidant for Treatment of Drinking Water
Emerging Micro-pollutant /
المؤلف
Farrag, Alaa Mohamed Fareed Mahmoud.
هيئة الاعداد
باحث / Alaa Mohamed Fareed Mahmoud Farrag
مشرف / EGLAL MARYIAM RAYMOND SOUAYA
مشرف / RIFAAT SHABAN ABDEL WAHAAB
مناقش / TAREK SAMIR JAMIL
تاريخ النشر
2018.
عدد الصفحات
269 P. :
اللغة
الإنجليزية
الدرجة
الدكتوراه
التخصص
Analytical Chemistry
تاريخ الإجازة
1/1/2018
مكان الإجازة
جامعة عين شمس - كلية العلوم - قسم الكيمياء
الفهرس
Only 14 pages are availabe for public view

from 269

from 269

Abstract

1) Chapter (І)
Introduction about water as importance uses common pollutants and a background about emerging pollutant in drinking water and its impact and their ways of removal and ferrate as an emerging technology for removal of emerging pollutants by its unique properties.
2) Chapter (II)
A literature survey has been presented on the surface water status in Egypt and the used treatment in Egypt. Challenges within the conventional treatment of water have been declared in this part. Pharmaceuticals as an emerging micropollutant, its presence, impact and way of treatment have been also addressed in this chapter. Ferrate uses, efficiency, and benefits in water treatment have been discussed in a brief way.
3) Chapter (III)
Includes the experimental part, materials, solutions, their preparation techniques, instruments, the analysis used in this work, and the practical procedures that have been carried out in this study.
4) Chapter (IV)
This chapter contains the results and discussion from the experimental work done through this study. This chapter consists of 5 parts.
The first part: Includes the monitoring of surface water quality on Rosetta branch with a highlight on organic, inorganic and microbiological pollution within the branch. It reveals that concentration of ammonia,
Summary Using of Green Oxidant for Treatment of Drinking Water Emerging Micro-pollutant
Summary
COD, and BOD are maximum at the points of the discharge of the 5 drains (s2, s6, s9, s11, and s13) which reflect the dramatic impact of the 5 drains in water quality at the Rosetta branch.
El Rahway drain represents the most polluted one this could be attributed to many villages discharge its untreated waste directly in the drain, the number of uncovered villages with sewage systems in ELRahway drain domain is about 65 villages with about 836715 capita
The second part: Includes the tracing of pharmaceuticals residue along the Rosetta branch. 18 sampling points were investigated by the means of LC-MS solid phase extraction method, 15 pharmaceuticals “Naproxen, Chlortetracycline, Doxytetracyclin hyclate, Pencilin, Oxacillin, Oxytetracycline, Tetracyclin, Ofloxacin, Paracetamol, Ibuprofen, Diclofenac Sodium, Caffeine, Erythromycins, Sulfamethazine, and Ciprofloxacin” were traced along the sampling points.
Naproxen, Chlortetracycline, Doxytetracyclin hyclate, Pencilin and Oxacillin record the highest concentrations up to 21.189, 20.955, 20.89, 20.09 and 20.029 µg/l, respectively, while Oxytetracycline, Tetracyclin, and Ofloxacin were not detected, the study reflects the effect of the untreated waste along the Rosetta branch.
The concentration of pharmaceuticals residue began to decrease gradually after mixing point and away forward. That could be attributed to river self-purification.
Some of the pharmaceuticals are easily degradable as (Naproxen, Diclofenac Sodium, Paracetamol, Ciprofloxacin, Doxytetracyclin Hyclate, Oxacillin, and Erythromycin) while in a contrary way, other

Summary Using of Green Oxidant for Treatment of Drinking Water Emerging Micro-pollutant
Summary
groups of pharmaceuticals show a higher stability like (Penicillin, Ibuprofen, Chlortetracycline, Caffin).
Naproxen recorded the highest concentration with (21.189 µg/l), while Sulfamethazine recorded the lowest concentration with (16.103 µg/l).
Ibuprofen and Caffin both show great stability and high average concentration at all sampling points.
The third part: Includes the preparation and characterization of ferrate to be used in treatment.
The fourth part: determination of the optimum condition for using ferrate in the treatment of pharmaceuticals residues, jar test was used as treatment technique by application of ferrate on synthetic samples. The condition optimum was:
• Ferrate dose = 5 mg/l.
• pH 8-10.
• time 20 min.
It was found that ferrate achieves outstanding performance in the removal of 14 pharmaceuticals most of them are nearly complete removal by doses as lower as 5-10 mg/l of ferrate.
Erythromycin shown a great stability to oxidation by ferrate, the effect of pH and time of treatment were also studied, it was revealed that the acidic condition is more favorable for ferrate and this was owed to high oxidation potential of ferrate in an acidic condition which reaches 2.2 v higher than ozone.
Summary Using of Green Oxidant for Treatment of Drinking Water Emerging Micro-pollutant
Summary
The fifth part: Includes comparison between the performance of ferrate and the conventional chemicals, ferrate by 5 mg/L dose achieves higher removal of all the pharmaceuticals in comparison with the conventional chemical chlorine and alum. Also using of ferrate has accomplished a higher reduction for both total coliform and turbidity this two successive removal are owed to its unique dual function as a coagulant and disinfectant at the same time.
5) Chapter (V)
Includes the conclusion that has been extracted from this work:
ferrate has proven itself as a green coagulant alternative for the conventional treatment. Ferrate has accomplished the required treatment of surface water of Koshla WTP. Using ferrate in surface water treatment accomplish almost 100% removal for 14 pharmaceuticals, however, ferrate failed to remove erythromycin by significant efficiency.