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Volume reduction and water recovery of Palm Oil Mill Effluent (POME) using membrane distillation

Volume reduction and water recovery of Palm Oil Mill Effluent (POME) using membrane distillation / Nor Azlinda Abdul Saat
Kilang-kilang minyak sawit yang terkenal dalam menghasilkan efluen tercemar dengan jumlah yang besar. POME mentah adalah berasid, bersuhu tinggi, bahan apungan dan yang paling penting BOD yang tinggi. Jika bahan buangan ini tidak dirawat dengan betul, ia boleh menimbulkan sebagai pencemar organik yang tinggi. Untuk mengatasi masalah ini, membran penyulingan merupakan alternatif untuk kaedah rawatan konvensional kerana ia boleh mengendalikan penyelesaian dengan muatan pepejal yang tinggi. Dalam kajian ini, kepekatan POME yang berbeza (mentah, termendap dan ditapis) dengan jumlah bahan apungan yang berbeza ditapis untuk mendapat pemulihan air pada pada suhu pelepasan asalnya (80°C). Kesan pemendapan POME kepada prestasi membran MD dan penciriannya dikaji menggunakan ‘contact angle’, SEM, FTIR, porometry dan pengukuran LEP. Daripada kajian ini, pemendapan POME menyebabkan menurun daripada sudut kenalan membran kerana sifat hydrophilic POME pepejal terampai. Membran mempunyai fluks sederhana (4.33 kg / m2h) dan keupayaan penyingkiran nutrien yang cemerlang iaitu lebih dari 99.99%. Oleh itu, pra-ditapis POME adalah cara yang praktikal untuk digunakan dalam proses DCMD untuk mendapat pemulihan air yang tinggi dan mengurangkan kecenderungan kekotoran membran. _______________________________________________________________________________________________________ The palm oil mills are well-known for producing huge amounts of polluting effluent. Raw POME is acidic, has high temperature, suspended solid and most important, high organic biochemical oxygen demand (BOD). If it is not properly treated, it could pose environmental burden. To overcome this problem, membrane distillation is an alternative for the conventional treatment method as it could handle solution with high solid loading. In this study, a different concentration of POME (raw, sedimented and filtered) with different Total Suspended Solid (TSS) is filtered by using direct contact membrane distillation (DCMD) to recover the water at its original discharge temperature (80°C). The impact of POME deposition on the performance of MD membrane and their characterization such as contact angle, SEM, FTiR, porometry and LEP measurement were reported. It was found that POME deposition caused the decreased of the membrane contact angle due to the hydrophilic nature of POME suspended solid. The membrane has moderate flux (4.33 kg/m2h) and an excellence nutrient removal capability of more than 99%. Thus, pre-filtered POME is a practical way to be used in direct contact membrane distillation (DCMD) process in order to obtained high water recovery and mitigated the fouling tendency.
Contributor(s):
Nor Azlinda Abdul Saat - Author
Primary Item Type:
Final Year Project
Identifiers:
Accession Number : 875007292
Barcode : 00003107172
Language:
English
Subject Keywords:
palm oil mills; polluting effluent; direct contact membrane distillation (DCMD)
First presented to the public:
6/1/2017
Original Publication Date:
4/30/2018
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
2018-04-30 12:32:55.297
Date Last Updated
2019-01-07 11:24:32.9118
Submitter:
Mohd Jasnizam Mohd Salleh

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