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Water treatment using coagulant from moringa oliefera seeds

Water treatment using coagulant from moringa oliefera seeds / Mohamad Shawaluddin Zulkefle
Masalah air yang telah menjadi isu global di seluruh dunia. Pada masa kini, banyak sumber-sumber air yang telah tercemar dengan bahan kimia berbahaya. Oleh itu, rawatan air sisa diperlukan. Salah satu proses dalam rawatan air adalah koagulasi dan flokulasi. Secara amnya, aluminium sulfat digunakan sebagai koagulan dalam rawatan sisa air tetapi bahan ini dikatakan akan memberi beberapa kesan sampingan kepada manusia. Untuk menggantikan penggunaannya koagulan semula jadi amat diperlukan. Koagulan semula jadi datang daripada tumbuhan seperti Moringa Oliefera. Serbuk Moringa Oliefera yang telah diekstrak akan digunakan sebagai koagulan semula jadi. Serbuk ini akan dicirikan menggunakan SEM dan FTIR manakala serbuk selebihnya akan digunakan sebagai koagulan semula jadi. Untuk mengetahui keupayaan Moringa Oliefera koagulan, eksperimen ujian balang telah dijalankan untuk mengetahui parameter yang mempengaruhi keberkesanan koagulan ini. Dari ujikaji yang dijalankan, ia menunjukkan bahawa serbuk Moringa Oliefera yang diekstrak mengandungi hidrokarbon dengan gelang aromatik dan amina alifatik yang terdiri daripada sebatian nitro. Dalam uji kaji baling ujian, penyingkiran kekeruhan bahan koloid dalam air adalah lebih tinggi apabila kadar pencampuran dan masa pencampuran adalah 30 rpm selama 40 minit dengan 96.8% penyingkiran. Untuk kepekatan yang tinngi, penyingkiran adalah paling tinggi dengan dos optimum 50mg/L koagulan yang menghasilkan nilai 95.6% penyingkiran. Akhir sekali, pada kadar kepekatan air yang berbeza, penyingkiran kepekatan adalah lebih tinggi bagi pH optimum 7 dan 8 dengan 93.8% dan 96.7% penyingkiran. Oleh itu penggunaan koagulan semula jadi ini boleh digunakan sebagai pengganti penggunaan koagulan konvensional dalam rawatan air. _______________________________________________________________________________________________________ Water related problem became global issue around the world. The usages are important in our daily life. Nowadays, many of the water sources were polluted with hazardous material. Therefore, the treatment of wastewater was needed. One of the processes in water treatment was coagulation and flocculation. Conventionally, aluminium sulphate was use as coagulant but it was said that would give some side effect. To replace it the use of natural coagulant was needed. Natural coagulant from plant like Moringa Oliefera was studied to know it composition and its ability to act as coagulant. The powder of Moringa Oliefera that has been extracted will be use as natural coagulant. This powder will be characterized using SEM and FTIR while the remaining powder will be use as natural coagulant. To know the ability of Moringa Oliefera coagulant, jar test experiment was conducted to know the parameter affecting this coagulant. From the experiment, it shows that extractes Moringa Oliefera powder contain hydrocarbon with aromatic ring and aliphatic amines that consist of nitro compound. During jar test experiment, the turbidity removal of colloidal material in the water was higher when the mixing rate and time of mixing was 30 rpm for 40 minute with 96.8% removal. While at higher turbidity, the removal was highest with optimum dosage of 50mg/L of coagulant with 95.6% removal. Lastly, at different range of water turbidity the turbidity removal were higher for optimum pH 7 and 8 with 93.8% and 96.7% removal. Therefore the use of this natural coagulant can be use as the replacement of conventional coagulant use in water treatment.
Contributor(s):
Mohamad Shawaluddin Zulkefle - Author
Primary Item Type:
Final Year Project
Identifiers:
Accession Number : 875005657
Language:
English
Subject Keywords:
Water; polluted; treatment
First presented to the public:
6/1/2015
Original Publication Date:
8/12/2020
Previously Published By:
Universiti Sains Malaysia
Place Of Publication:
School of Chemical Engineering
Citation:
Extents:
Number of Pages - 47
License Grantor / Date Granted:
  / ( View License )
Date Deposited
2020-08-12 10:12:19.928
Submitter:
Mohd Jasnizam Mohd Salleh

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