Calcium alginate as an eco-friendly supporting material for baker’s yeast strain in chromium bioremediation
المؤلفون المشاركون
Mahmud, M. S.
Muhammad, Samah A.
المصدر
Housing and Building National Research Center Journal
العدد
المجلد 13، العدد 3 (31 ديسمبر/كانون الأول 2017)، ص ص. 245-254، 10ص.
الناشر
المركز القومي لبحوث الإسكان و البناء
تاريخ النشر
2017-12-31
دولة النشر
مصر
عدد الصفحات
10
التخصصات الرئيسية
علوم الأرض و المياه و البيئة
الفيزياء
الملخص EN
In this study, Baker’s yeast strain (Saccharomyces cerevisiae) biomass was immobilized in alginate extract 3% forming Biomass/Polymer Matrices Beads (BPMB).
These beads were investigated for chromium biosorption from aqueous solution.
Factors such as solution pH, contact times, temperature values, stirring rates, BPMB dosages and initial chromium ions concentrations were experimentally tested using repeated-batch process to determine the sorption capacity for chromium (VI) ions.
Batch experiments were conducted at pH range from 1.5 to 7.5.
The optimum pH value was 3.5 for direct chromium removal.
The effect of chromium concentration was studied using different concentrations from 200 to 1000 ppm.
Freundlich’s isothermal model showed better representation of data than Langmuir’s isothermal model with correlation coefficient 0.922.
The maximum biosorption capacity of chromium was found to be 154 mg g1 at initial concentration 200 ppm under optimum conditions.
At the end of the experiments, BPMB were investigated for chromium biosorption from tannery effluent sample.
Results showed decrease in chromium concentration up to 85%.
The availability of recycling of the BPMB was also studied for three subsequent cycles.
The surface sequestration of metal ions by BPMB was characterized before and after metal binding using a scanning electron microscope (SEM) equipped with an energy dispersive X-ray analysis (EDXA) and FTIR spectroscopy in order to determine the mechanisms of chromium biosorption.
نمط استشهاد جمعية علماء النفس الأمريكية (APA)
Mahmud, M. S.& Muhammad, Samah A.. 2017. Calcium alginate as an eco-friendly supporting material for baker’s yeast strain in chromium bioremediation. Housing and Building National Research Center Journal،Vol. 13, no. 3, pp.245-254.
https://search.emarefa.net/detail/BIM-783817
نمط استشهاد الجمعية الأمريكية للغات الحديثة (MLA)
Mahmud, M. S.& Muhammad, Samah A.. Calcium alginate as an eco-friendly supporting material for baker’s yeast strain in chromium bioremediation. Housing and Building National Research Center Journal Vol. 13, no. 3 (Dec. 2017), pp.245-254.
https://search.emarefa.net/detail/BIM-783817
نمط استشهاد الجمعية الطبية الأمريكية (AMA)
Mahmud, M. S.& Muhammad, Samah A.. Calcium alginate as an eco-friendly supporting material for baker’s yeast strain in chromium bioremediation. Housing and Building National Research Center Journal. 2017. Vol. 13, no. 3, pp.245-254.
https://search.emarefa.net/detail/BIM-783817
نوع البيانات
مقالات
لغة النص
الإنجليزية
الملاحظات
Includes bibliographical references : p. 252-254
رقم السجل
BIM-783817
قاعدة معامل التأثير والاستشهادات المرجعية العربي "ارسيف Arcif"
أضخم قاعدة بيانات عربية للاستشهادات المرجعية للمجلات العلمية المحكمة الصادرة في العالم العربي
تقوم هذه الخدمة بالتحقق من التشابه أو الانتحال في الأبحاث والمقالات العلمية والأطروحات الجامعية والكتب والأبحاث باللغة العربية، وتحديد درجة التشابه أو أصالة الأعمال البحثية وحماية ملكيتها الفكرية. تعرف اكثر