The Influence of PEG400 and Acetone on Polysulfone Membrane Morphology and Fouling Behaviour

Aryanti, P.T.P.; Joscarita, Shelli R.; Wardani, Agustin Krisna; Subagjo, Subagjo; Ariono, Danu; Wenten, I Gede

doi:10.5614/j.eng.technol.sci.2016.48.2.1

Cited by 36 publications

(16 citation statements)

References 30 publications

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“…Membrane-based processes have been widely used in various fields, such as water treatments [79][80][81][82][83][84][85][86][87], wastewater treatment [88,89], gas separation [90,91], energy conversion [92], medical and chemical processing [93][94][95][96][97], food processing and biotechnology [98][99][100][101][102], and so on, competing with conventional processes [81][82][83][103][104][105][106][107]. The rapid growth in development and application of membrane technologies is due to their interesting features.…”

Section: Common Application Of Membrane-based Processesmentioning

confidence: 99%

Recent advances in waste lube oils processing technologies

Widodo

Ariono

Khoiruddin

et al. 2018

Env Prog and Sustain Energy

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Waste lube oils are classified as hazardous waste due to the metal contents derived from the additives and wear. Most lube oils contain up to 20% of additives including antioxidants, anti‐wear, and de‐foaming agents which are generally used to extend the usage of lube oils and enhance engines performance. The most widely‐used additives contain metal as they exhibit efficacy in performance enhancement. However, these additives increase the hazardous level of waste lube oils and are highly toxic when released into the environment. Waste lube oils processing can minimize the toxicity and the complexity of the waste and may produce valuable products at the same time, such as, fuels, solvent, and base oils for production of new lube oils. In this paper, the common technologies for waste lube oils processing, including physical and chemical processes are reviewed. In addition, more recently developed technology such as membrane technologies and their potential application in waste lube oil processing are also discussed. © 2018 American Institute of Chemical Engineers Environ Prog, 37: 1867–1881, 2018

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Section: Common Application Of Membrane-based Processesmentioning

confidence: 99%

Recent advances in waste lube oils processing technologies

Widodo

Ariono

Khoiruddin

et al. 2018

Env Prog and Sustain Energy

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“…Increasing membrane hydrophilicity is typically used to achieve a higher Wu . Poly(ethylene glycol) (PEG) is a hydrophilic additive that has been widely used in the preparation of ultrafiltration membranes to improve membrane hydrophilicity and porosity and to endow an antifouling property . Unlike nanoparticles, polymeric additive may be well distributed inside the membrane matrix without any blocking of resin particles.…”

Section: Introductionmentioning

confidence: 99%

Effect of hydrophilic additive and PVC polymerization degree on morphology and electrochemical properties of PVC‐based heterogeneous cation‐exchange membrane

Khoiruddin

Ariono

Subagjo

et al. 2018

J of Applied Polymer Sci

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Membrane solution composition is one of the important factors that determine properties of ion-exchange membranes. In this study, a PVC-based heterogeneous cation-exchange membranes were prepared by the solution casting method. Effects of a hydrophilic additive [poly(ethylene glycol), PEG400] and degree of polymerization of poly(vinyl chloride) (PVC) on the morphology and electrochemical properties of the cation-exchange membranes were investigated. The results revealed that the hydrophilic additive can improve membrane properties, including water uptake (Wu), ion-exchange capacity (IEC), conductivity, and permselectivity. The improvements might be associated with an increase in accessibility of functional sites in the membrane matrix due to a higher hydrophilicity, indicated by a reduction of water contact angle and the greater void fraction shown by scanning electron microscopy. However, the permselectivity slightly decreased when the additive concentration was increased further. Meanwhile, increasing the degree of polymerization and PVC concentration resulted in higher permselectivity and lower conductivity, which might be due to a better resin distribution and a lower void fraction. Overall, the prepared membranes had relatively good conductivities (up to 2.5 mS/cm) and permselectivities (up to 0.92). In general the conductivity increases with increased Wu and IEC, while the permselectivity showed the opposite trends. This could be associated with the efficacy of Donnan exclusion indicated by the IEC/Wu ratio and the Donnan equilibrium constant of the cation (K 1 ).

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“…Fouling and scaling depends on several factors, i.e. membrane morphology, feed water composition, and operation conditions [4][5][6][7][8]. Pre-treatment can be done in RO application to control membrane fouling and scaling by removing impurities from the feed water [3,9,10].…”

Section: Introductionmentioning

confidence: 99%

Case Study of a Small Scale Reverse Osmosis System for Treatment of Mixed Brackish Water and STP Effluent

Widiasa

Jayanti

2017

J. Eng. Technol. Sci.

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Abstract.A case study on utilizing reverse osmosis (RO) technology to fulfill fresh water needs at a mall and a hotel has been done on Bali Island, Indonesia. A mix of brackish water and sewage treatment plant (STP) effluent was used as feed water in the RO system. The system used 36 membrane elements (CSM RE 8040 BLN) arranged into two stages: 8 pressure vessels (PVs) in the first stage and 4 PVs in the second stage, each loaded with 3 membranes. The objectives of this research were to assess the cleaning effectivity in the plant, to evaluate the cleaning of 1 membrane element using a CIP system, and to assess the use of the membrane for filtration in the pre-treatment system. SEM and FTIR analysis indicated that the foulants on the membrane surface were dominated by organic foulants and inorganic deposits. To clean the discarded membrane the proposed method used NaOH solution (pH 12 and pH 13) and citric acid (pH 2 and pH 3). All membranes displayed a dramatic decline in rejection of about 80%. Based on the rejection tests of SO 4 2-, Cl -, turbidity reduction approached 100%. It can be concluded that an RO membrane that has undergone selectivity decline can be re-used as a filtration membrane in the pre-treatment system.

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The Influence of PEG400 and Acetone on Polysulfone Membrane Morphology and Fouling Behaviour

Cited by 36 publications

References 30 publications

Recent advances in waste lube oils processing technologies

Recent advances in waste lube oils processing technologies

Effect of hydrophilic additive and PVC polymerization degree on morphology and electrochemical properties of PVC‐based heterogeneous cation‐exchange membrane

Case Study of a Small Scale Reverse Osmosis System for Treatment of Mixed Brackish Water and STP Effluent

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