Adsorptive removal of cadmium ions by spirulina platensis dry biomass
المؤلفون المشاركون
Humaydan, Ali A.
al-Abd al-Latif, Jamilah A.
al-Hazzani, Amal A.
al-Ghunaym, Abd Allah A.
al-Abbad, al-Jawharah F.
المصدر
Saudi Journal of Biological Sciences
العدد
المجلد 22، العدد 6 (30 نوفمبر/تشرين الثاني 2015)، ص ص. 795-800، 6ص.
الناشر
تاريخ النشر
2015-11-30
دولة النشر
السعودية
عدد الصفحات
6
التخصصات الرئيسية
الموضوعات
الملخص EN
Cadmium is one of the most toxic substances found in aquatic ecosystems.
This metal tends to accumulate in photosynthetic plants and fish and is transferred to humans causing many diseases.
It has to be removed from our environment to reduce any health risks.
Dry biomass of the microalga (cyanobacterium) Spirulina platensis was used as biosorbent for the removal of cadmium ions (Cd2+) from aqueous solutions.
The effects of different levels of pH (3–9), biomass concentration (0.25–2 g), temperature (18–46 C), metal concentration (40–200 mg/l) and contact time (30–120 min) were tested.
Batch cultures were carried out in triplicate in an orbital shaker at 150 rpm.
After centrifuging the biomass, the remaining levels of cadmium ions were measured in the supernatant by Atomic Absorption Spectrometer.
Very high levels of removal, reaching up to 87.69% were obtained.
The highest percentage of removal was reached at pH 8, 2 g of biosorbent, 26 C, and 60 mg/l of cadmium concentration after 90 min of contact time.
Langmuir and Freundlich isotherm models were applied to describe the adsorption isotherm of the metal ions by S.
platensis.
Langmuir model was found to be in better correlation with experimental data (R2 =0.92).
Results of this study indicated that S.
platensis is a very good candidate for the removal of heavy metals from aquatic environments.
The process is feasible, reliable and eco-friendly.
نمط استشهاد جمعية علماء النفس الأمريكية (APA)
Humaydan, Ali A.& al-Abd al-Latif, Jamilah A.& al-Hazzani, Amal A.& al-Ghunaym, Abd Allah A.& al-Abbad, al-Jawharah F.. 2015. Adsorptive removal of cadmium ions by spirulina platensis dry biomass. Saudi Journal of Biological Sciences،Vol. 22, no. 6, pp.795-800.
https://search.emarefa.net/detail/BIM-628709
نمط استشهاد الجمعية الأمريكية للغات الحديثة (MLA)
Humaydan, Ali A.…[et al.]. Adsorptive removal of cadmium ions by spirulina platensis dry biomass. Saudi Journal of Biological Sciences Vol. 22, no. 6 (Nov. 2015), pp.795-800.
https://search.emarefa.net/detail/BIM-628709
نمط استشهاد الجمعية الطبية الأمريكية (AMA)
Humaydan, Ali A.& al-Abd al-Latif, Jamilah A.& al-Hazzani, Amal A.& al-Ghunaym, Abd Allah A.& al-Abbad, al-Jawharah F.. Adsorptive removal of cadmium ions by spirulina platensis dry biomass. Saudi Journal of Biological Sciences. 2015. Vol. 22, no. 6, pp.795-800.
https://search.emarefa.net/detail/BIM-628709
نوع البيانات
مقالات
لغة النص
الإنجليزية
الملاحظات
Includes bibliographical references : p. 799-800
رقم السجل
BIM-628709
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