臺灣國際科展

Green Wastewater Treatment: Using Graphene Oxide produced from Date Pits to Degrade Organic Dyes via Novel Microwave Technique

科展類別
臺灣國際科展作品
屆次
2017年
科別
環境工程
得獎情形
四等獎
學校名稱
Abha Highe School-
作者
Abdulaziz Yahya Alshahrani
關鍵字
IF(ISERROR(MATCH(#REF!,[TISFlist_2017.xlsx]關鍵詞!#REF!,0)),"",INDEX([TISFlist_2017.xlsx]關鍵詞!#REF!,MATCH(#REF!,[TISFlist_2017.xlsx]關鍵詞!#REF!,0)))

摘要或動機

Water treatment is considered as one of the top research priorities in Saudi Arabia. It has been reported by World Health Organization that, 50,000 people die every day from diseases caused by contaminated water. This research attempts to degrade organic pollutants present in wastewater by using Graphene Oxide synthesized from Saudi natural source. Physical activation of date pits was carried out by carbonizing the samples at different temperatures to produce active carbon. Hammer’s method was employed for the purpose of Graphene Oxide production. The resulted Graphene Oxide has been characterized using FT-Raman, XRD and SEM techniques. Methylene Blue (MB) dye was used as a model organic pollutants to examine the ability of Graphene with the aid of a microwave-system to remove such pollutants. A modified domestic MS furnace with a variable power was used to supply microwave energy. The MB solution 2.5x10-6M was mixed with 0.1gm of Graphene Oxide. The applied microwave power was ranged between 100 to 700 W and the time was set between 0 to 12 minutes. The samples were centrifuged and then filtered through a millipore filter to remove the Graphene Oxide dispersed particles. It is found that, 98% of the initial concentration of MB is removed effectively within 12 minutes under microwave power of 500 W. Chemical oxygen demand is shifted from 450 to 87 mg/L while biological oxygen demand was decreased from 270 to 12.8 mg/L which indicating the degradation of organic constituents. This method can be used for water purification from organic pollutants.


「為配合國家發展委員會「推動ODF-CNS15251為政府為文件標準格式實施計畫」,以及 提供使用者有文書軟體選擇的權利,本館檔案下載部分文件將公布ODF開放文件格式, 免費開源軟體可至LibreOffice 下載安裝使用,或依貴慣用的軟體開啟文件。」

檔案名稱 檔案大小 格式
Green Wastewater Treatment: Using Graphene Oxide produced from Date Pits to Degrade Organic Dyes via Novel Microwave Technique 451 KB Adobe Reader(Pdf)檔案