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Study of the treated palm oil mill effluent (pome) colour degradation using waste activated sludge (was) granule

Study of the treated palm oil mill effluent (pome) colour degradation using waste activated sludge (was) granule / Mohammad Shaniy Shafiy Azizan
Bakteria teraktif dihasilkan semasa menjalani eksperimen reactor kelompok (SBR) iaitu proses rawatan biologi untuk menjadikan sebagai penjerap untuk mengurangkan kepekatan warna berdasarkan kekeruhan. Secara umumnya, efluen kilang kelapa sawit yang telah dirawat menggunakan rawatan biologi untuk mengurangkan kandungan organik di dalamnya berdasarkan had dibenarkan. Walaubagaimanapun, warna efluen kilang kelapa sawit yang telah dirawat masih sama selepas rawatan. Dalam kajian ini, bakteria teraktif digunakan sebagai penjerap dan efluen kilang kelapa sawit yang telah dirawat digunakan sebagai menyerap. Percubaan awal telah dilakukan dengan kaedah yang berbeza untuk merawat bakteria teraktif iaitu pengeringan, asid sebelum rawatan dan beralkali sebelum rawatan. Tujuan percubaan awal untuk mengenal pasti kaedah yang akan menjadikan bakteria teraktif sebagai penjerap yang baik. Berdasarkan keputusan tersebut, kaedah rawatan pra beralkali menunjukkan peratusan tertinggi penyingkiran kekeruhan (92.16%). Percubaan awal yang telah dijalankan untuk mengenalpasti yang mana kaedah pengeringan, rawatan awal asid atau rawatan awal beralkali yang akan memberikan hasil yang terbaik berdasarkan peratus penyingkiran kekeruhan. Peratus penyingkiran kekeruhan adalah 92.16% untuk rawatan awal berakali adalah paling tertinggi jika dibandingkan dengan kaedah rawatan pra pengeringan dan rawatan awal asid. Eksperimen telah dijalankan dengan dos penjerab parameter yang berbeza, kepekatan yang berbeza dan jangka masa eksperimen. Proses penjerapan mencapai keseimbangan dalam 60 minit dan bermakna bahawa proses penjerapan berhenti dalam tempoh 60 minit disebabkan oleh bebas aktif laman. Hasil menunjukkan bahawa peratus penyingkiran kekeruhan meningkat dengan peningkatan jangka masa eksperimen dan kepekatan. Walau bagaimanapun, untuk kesan dos penjerap peratus penyingkiran kekeruhan berkurangan dengan meningkatkan dos penjerap. Isotherm penjerapan dihuraikan oleh Langmuir isotherm dan Freundlich isotherm. Berdasarkan keputusan yang didapati bahawa Freundlich isotherm lebih sesuai kerana nilai R2 Freundlich isotherm ialah 0.97 yang menghampiri nilai 1. Nilai n adalah 1.3 yang membawa maksud begitu bagus untuk proses penjerapan kerana dalam nilai 1 hingga 10. Kesimpulannya, bakteria teraktif boleh dijadikan penjerap yang baik untuk menghapuskan kepekatan warna dalam rawatan air sisa kerana ia berasal dari buangan dan dapat mengurangkan sisa-sisa dalam industri. _______________________________________________________________________________________________________ Waste activated sludge (WAS) granule is produced during the biological treatment of palm oil mill effluent (POME) in the Sequential Batch Reactor (SBR). Generally, POME is being treated using biological treatment to reduce the organic content in it to below the permitted limit. In spite of that, the colour of treated POME still the same after the treatment. In this study, the WAS granule is used as adsorbent and the treated POME used as adsorbate. The preliminary experiment was conducted with different methods to pre-treat WAS granule namely, drying, acid pre-treatment and alkaline pre-treatment. The purpose of the preliminary experiment to identify which methods will make the WAS granule as good adsorbent. Based on the result, the alkaline pre-treatment method shows the highest percentage removal of turbidity (92.16%). The alkaline treatment was chosen as the pre-treatment method. Next, the experiment was conducted with different parameters namely, adsorbent dosage, initial concentration of treated POME and contact time of the adsorption process. The adsorption process attains equilibrium within 60 minutes which it means that the adsorption process stops within 60 minutes due to the non-availability of active sites. The result show that the percentage removal of turbidity increases with increasing contact time of the adsorption process and initial concentration of treated POME. However, for the effect of adsorbent dosage the percentage removal of turbidity decreases with increasing the WAS granule dosage. The characterization of WAS granule was analysis using scanning electron microscope and can be concluded that the adsorption process does not depend on the porosity since there are no pores found on the surface of WAS. Moreover, fourier transform infra-red spectrometer is used to analysis for the characterization of WAS granule and several functional groups was found in the WAS granule. The adsorption isotherm was described by Langmuir isotherm and Freundlich isotherm. It was found that the Freundlich isotherm fit well. The R2 value for Freundlich isotherm is 0.97 which close to 1. The adsorption intensity (n) value is 1. In conclusion, the WAS granule can be a good adsorbent to remove the colour concentration in treated POME.
Contributor(s):
Mohammad Shaniy Shafiy Azizan - Author
Primary Item Type:
Final Year Project
Identifiers:
Accession Number : 875008105
Language:
English
Subject Keywords:
(WAS); biological; (POME)
First presented to the public:
6/1/2019
Original Publication Date:
6/27/2019
Previously Published By:
Universiti Sains Malaysia
Place Of Publication:
School of Chemical Engineering
Citation:
Extents:
Number of Pages - 53
License Grantor / Date Granted:
  / ( View License )
Date Deposited
2019-06-27 15:12:41.19
Submitter:
Mohd Jasnizam Mohd Salleh

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Study of the treated palm oil mill effluent (pome) colour degradation using waste activated sludge (was) granule1 2019-06-27 15:12:41.19