Preparation of Sodium Bicarbonate Activated Carbon from Chlorella Pyrenoidosa for Wastewater Treatment. Masters thesis, King Fahd University of Petroleum and Minerals.

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Arabic Abstract

ف عيرسلا يرارحلا للا حنلا ا قيرط نع ةيماسملا جئاتن ىلع ًءانب ةيماسملا ريغ داوملا صئاصخ ليدعت نود يويحلا محفلا رهظأ .اسوديونيريب لا يرولكل ةيويحلا ةلتكلل صاصتما - ةرارحلا يواستم زازتما N2. ةيحطسلا ةحاسملا ةدايز يف مويدوصلا تانوبركيب مادختساب ليدعتلا حجن يويحلا محفلل ةددحملا BET حطس ةحاسمو مج/ 2 م 871 غلبت ماسملا ةريغص ةيحطس ةحاسم عم ،مج/ 2 م 1282 ىلإ فيصوت رهظأ .ةيوئم ةجرد 750 ةرارح ةجرد دنع ةجيتنلا هذه ىلع لوصحلا مت .مج/ 2 م 411 غلبت ةيجراخ XRD يلاوح غلبت ةعساو ةورذ 24 رهظأ .زازتملا ا ضارغلأ ةمئلا ملا ةرولبتملا ريغ نوبركلا ةينب ىلإ ريشي امم ةجرد فيصوت FTIR متي ،كلذ دعب .زازتملا ا ةيلمع زيزعت اهنأش نم ةمهم ةيفيظو ةعومجم يرارحلا للا حنلا ا دعب دحلا .اهئادأ ىلع تارابتخلا ا نم ديزملا ءارجلإ ةيعانطصلا ا يحصلا فرصلا هايمل يعفدلا زازتملا ا ةينقت مادخت سا صاصرلل زازتملا ا ةردقل ىصقلأا (Pb 2+ ) طشنملا نوبركلل رويمجنلا جذومن ساسأ ىلع (q max ) ± 159.071 وه 23.4008 سناجتلا مدع لماع .مج/مجلم (hf) وه شتيلدنورف جذومن ساسأ ىلع 0.4671 ± 0.06394 يذلاو ، لاصفنلا ا لماع .يداملا زازتملا ا ىلإ يسيئر لكشب ريشي (R L ) ةعجر لا ةعيبط ىلإ ريشي امم ،رفصلا نم برتقي زازتملا ا لدعم نأ رهظأ ةفئازلا ةيناثلا ةجردلا نم يكرحلا جذومنلا .اهيف (k 2 ) ± 0.00931 وه طشنملا نوبركلل 0.00222 g.mg -1 min -1 . نم طشنملا نوبركلا نإف ،ةيجولونكتلا ىودجلا ثيح نم هنأ جئاتنلا ترهظأ ،ماع لكشب Chlorella pyrenoidosa ءادلأ ا جئاتن وأ فيصوتلا تانايب ىلع ًءانب امإ ،يراجتلا طشنملا نوبركلا ريياعم يبلي.

English Abstract

In this research, a highly porous sodium bicarbonate activated carbon was produced by the fast pyrolysis of Chlorella pyrenoidosa biomass. The biochar without modification showed non-porous material characteristics based on the results of N 2 isotherm adsorption- desorption. The modification with sodium bicarbonate successfully increased the BET specific surface area of biochar to 1282 m 2 /g, with a microporous surface area of 871 m 2 /g and an external surface area of 411 m 2 /g. This result was obtained at a temperature of 750°C. XRD characterization showed broad peak around 24° which indicates amorphous carbon structure that is favorable for adsorption purposes. FTIR characterization after pyrolysis showed an important functional group that should enhance the adsorption process. Following that, a batch adsorption technique of lead synthetic wastewater is used to conduct more tests on its performance. The maximum adsorption capacity of Lead (Pb 2+ ) based on Langmuir model of activated carbon (q max ) is 159.071 ± 23.4008 mg/g. The heterogeneity factor (hf) based on Freundlich model is 0.4671 ± 0.06394, which mainly indicates the physical adsorption. The separation factor (R L ) is nearly zero, indicating irreversible nature. The pseudo second order kinetic model showed that the rate of adsorption (k 2 ) for activated carbon is 0.00931 ± 0.00222 g.mg -1 min -1 . Overall, the results demonstrated that in terms of technological feasibility, activated carbon from Chlorella pyrenoidosa met the standards of commercial activated carbon, either based on characterization data or performance results.

Item Type:	Thesis (Masters)
Subjects:	Chemical Engineering
Department:	College of Chemicals and Materials > Chemical Engineering
Committee Advisor:	Abdur Razzak, Shaikh
Committee Members:	Al-Harthi, mamdouh and Al-Shammari, Abdallah A. and Aziz, Md. Abdul
Depositing User:	GUS ALI NUR ROHMAN (g202114510)
Date Deposited:	30 May 2024 12:31
Last Modified:	30 May 2024 12:31
URI:	http://eprints.kfupm.edu.sa/id/eprint/142899