IJE TRANSACTIONS B: Applications - Special Issue - Sustainable Technologies for Water and Environment; Guest Editor Prof. Dr. Ahmad Fauzi Ismail and Associate Guest Editor Dr. Lau Woei Jye, Universiti Teknologi Malaysia (UTM), Malaysia
Vol. 31, No. 8 (August 2018) 1398-1405    Article in Press

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Mohd Ridhwan Adam, Mohd Hafiz Dzarfan Othman, Siti Khadijah Hubadillah, Mohd Hafiz Puteh, Zawati Harun and A.F. Ismail
( Received: December 11, 2017 – Accepted: March 28, 2018 )

Abstract    The disproportionate quantity of ammonia presence in water has led to serious drinkable water scarcity worldwide. The abundant source of mineral and superior cations selectivity has made natural zeolite as a good adsorbent for the ammonia removal. This work aims to fabricate natural zeolite based hollow fibre ceramic membrane (HFCM) via extrusion based phase inversion and sintering techniques for the ammonia removal in wastewater. The physical properties of the fabricated HFCM were investigated through surface morphologies and pure water permeation. The performance of the HFCM for ammonia removal was studied using synthetic wastewater with HFCM prepared at different sintering temperatures. Of all studied sintering temperatures, it was found that 1050 °C was the best fabrication conditions. The membrane also revealed acceptable morphologies (roughness) and water permeation flux of 249.57 L/m2.h to which both contributed to the performance of the HFCM. The ammonia removal using the fabricated HFCM gave an outstanding performance with nearly 90% rejection, which probably is due to the synergistic effect of the two processes in the HFCM system, i.e. adsorption and separation. It was found that natural zeolite based HFCM has a great potential to be developed as a single – step ammonia removal in wastewater treatment.


Keywords    Natural zeolite, hollow fibre ceramic membrane, phase inversion, sintering, ammonia removal


چکیده    مقدار نامتناسبی از حضور آمونیاک در آب منجر به کمبود آب آشامیدنی شدید در سراسر جهان شده است. فراوانی‌ منبع و جذب فوق العاده کاتیون های زئولیت طبیعی از این ماده یک جاذب خوب برای حذف آمونیاک ساخته است. هدف این کار ساخت فیبر توخالی با غشای سرامیکی مبتنی بر تکنیک های اکستروژن از جنس زئولیت طبیعی و حذف آمونیاک فاضلاب با استفاده از روش وارونگی فاز و گرما دادن است. خواص فیزیکی‌ نمونه‌های ساخته شده با استفاده از مورفولوژی سطح و نفوذ آب خالص مورد بررسی‌ قرار گرفته است. عملکرد نمونه‌های متفاوت گرما داده شده در دماهای مختلف برای جذب آمونیاک روی فاضلاب صنعتی مطالعه شده است. بین همه دماهای مختلف ۱۰۵۰ درجه سانتیگراد بهترین دمای ساخت است. غشاء همچنین مورفولوژی قابل قبول (زبری) و شار نفوذ آب ۲۴۹.۵۷ لیتر بر متر مربع را نشان میدهد که هر دو نشان دهنده عملکرد نمونه‌ها می‌باشد. حذف آمونیاک با استفاده از نمونه‌های ساخته شده با عملکرد عالی تقریبا ۹۰ درصد احتمالا به دلیل اثر متقابل دو فرآیند جذب و جداسازی در نمونه‌ها می‌باشد. مشخص شد که نمونه‌های ساخته شده مبتنی بر زئولیت طبیعی دارای یک پتانسیل عالی برای حذف تک مرحله ای آمونیاک از فاضلاب است.

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