Pengaruh Pencucian Dan Air Scouring Terhadap Kinerja Immersed Membrane Microfiltration

Ujiane, Virgina Jane (2022) Pengaruh Pencucian Dan Air Scouring Terhadap Kinerja Immersed Membrane Microfiltration. Other thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Kualitas air baku untuk air minum di kota Surabaya semakin menurun dan penggunaan unit pengolahan konvensional tidak lagi efisien untuk meningkatkan kualitas air olahan. Teknologi membran banyak digunakan untuk meningkatkan kualitas air olahan dan mengurangi penggunaan bahan kimia yang sehingga dapat mengurangi biaya pengolahan. Membran mikrofiltrasi dapat digunakan untuk mengolah air pada unit sedimentasi IPAM Ngagel III untuk menghasilkan kualitas hasil yang lebih baik. Seiring berjalannya proses filtrasi akan terjadi deposisi material di atas permukaan membran mikrofiltrasi. Deposisi material tersebut dapat menyebabkan fouling. Fouling dapat mengakibatkan menurunnya produktivitas membran oleh sebab itu perlu dilakukan pengendalian fouling berupa pencucian dan air scouring. Pencucian dilakukan dengan variasi metode pencucian dan lama pencucian. Pencucian dilakukan secara manual dengan metode gently scrubbing dan backwash selama 10 menit dan 20 menit. Pencucian secara backwash dilakukan dengan menggunakan bahan pencuci NaOCl 5,25%. Air scouring dilakukan dengan variasi tekanan udara yaitu 0,3 bar dan 0,6 bar. Jenis membran yang digunakan adalah ceramic
membrane microfiltration flatsheet yang diletakan pada bak sedimentasi IPAM Ngagel III dan dioperasikan secara submerged. Tujuan dari penelitian ini adalah untuk melihat pengaruh pencucian dan air scouring terhadap jumlah fluks yang dihasilkan dan penurunan nilai kekeruhan, Total Suspended Solid, micro-plastic, E-Coli, dan zat organik. Hasil dari penelitian ini didapatkan pencucian yang paling efektif yaitu pencucian secara manual dengan metode gently scubbing, dengan hasil flux recovery sebesar 100% dan dapat meningkatkan koefisien rejeksi parameter kekeruhan dan zat organik. Air Scouring dapat memperpanjang waktu operasi, meningkatkan jumlah air produksi, dan meningkatkan kemampuan rejeksi membran. Pada penelitian ini air scouring yang lebih efektif yaitu air scouring dengan variasi tekanan udara 0,6 bar. Total air produksi dapat ditingkatkan sebesar sebesar 38,2 % dan dapat meningkatkan koefisien rejeksi pada parameter kekeruhan,TSS, zat organik, dan mikroplastik.
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The quality of raw water in the city of Surabaya is decreasing and the use of conventional treatment units is no longer efficient to treat raw water to become drinking water. Membrane technology is widely used in water treatment plants on limited land and uses a small number of chemicals so can reduce treatment costs. Microfiltration membranes can be submerged in the IPAM Ngagel sedimentation unit to produce better quality results.As the filtration process progresses, there will be material deposition on the surface of the microfiltration membrane. The deposition of these materials can cause fouling. Fouling can lead to a decrease in membrane productivity, therefore it is necessary to control fouling in the form of washing and air scouring. The washing is carried out with a variety of washing methods and washing time. The washing was done manually using the gently scrubbing and backwashing method for 10 minutes and 20 minutes. Backwash washing was carried out using 5.25% NaOCl as a washing agent. Air scouring is carried out with variations in air pressure, namely 0.3 bar and 0.6 bar. The type of membrane used is a ceramic membrane microfiltration flatsheet which is placed in a sedimentation basin of IPAM Ngagel III and operated submerged. The purpose of this study was to examine the effect of washing and water scouring on the amount of flux produced and the decrease in turbidity values, Total Suspended Solids, micro�plastics, E-Coli, and organic substances.The results of this study showed that the most effective washing was manual washing with the gently scubbing method, with a flux recovery result of 100% and could increase the rejection coefficient of the turbidity parameters and organic substances. Air Scouring can extend the operating time, increase the amount of production water, and increase the membrane rejection capability. In this study, the more effective air scouring was air scouring with air pressure variations of 0.6 bar. Total production water can be increased by 38.2% and can increase the rejection coefficient on the parameters of turbidity, TSS, organic matter, and microplastics.

Item Type:	Thesis (Other)
Additional Information:	RSL 628.162 Uji p-1 2022
Uncontrolled Keywords:	Air Scouring, Backwashing, Fouling, Immersed membrane, Mikrofiltrasi, Air Scouring, Backwashing, Fouling, Immersed membrane, Microfiltration
Subjects:	T Technology > TD Environmental technology. Sanitary engineering > TD433 Water treatment plants
Divisions:	Faculty of Civil, Planning, and Geo Engineering (CIVPLAN) > Environmental Engineering > 25201-(S1) Undergraduate Thesis
Depositing User:	Mr. Marsudiyana -
Date Deposited:	02 Dec 2024 10:14
Last Modified:	02 Dec 2024 10:14
URI:	http://repository.its.ac.id/id/eprint/115875

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