Performance and characterization of PEG400 modified PVC ultrafiltration membrane

AIP Conference Proceedings

Aryanti

Subagjo

et al. 2017

Abstract. The influence of various polymer concentrations on flux stability of polysulfone membranes was investigated. The polysulfone membrane was prepared by blending polysulfone in DMAc with 25%wt concentration of PEG400 and 4% wt concentration of acetone. It was found that the pure water flux was sharply decreased from 1230 to 7 Lm-2h-1, when the polysulfone concentration was increased from 14% to 24%wt. Furthermore, the increase of polysulfone concentration also affects the fouling behavior of the membranes, in which almost of 90% of FRR was achieved by the addition of 18 %wt of polysulfone concentration. It was suggested that fouling formed on the membrane surface was dominated by reversible fouling, thus it could be easily cleaned by flushing method. In addition, the applied transmembrane pressure (TMP) also plays an important role in fouling behavior of polysulfone membrane. It was observed that irreversible fouling of organic matter was deteriorated by the increase of TMP, which contributed to the reduction of water flux. More stable membrane flux performance was achieved although it was operated at high TMP, when 20% wt concentration of polysulfone was added into membrane solution.

Section: Flux and Selectivity Measurementmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

The effect of polymer concentration on flux stability of polysulfone membrane

AIP Conference Proceedings

Aryanti

Subagjo

et al. 2017

“…Despite of the excellent performance in the removal of organic content, fouling remains a main drawback of the process. Numerous strategies have been studied to minimize membrane fouling [95][96][97][98][99]. With the developed control of fouling in the MBR process, MBR could be a promising alternative for spent brine regeneration, particularly for treatment of brine that is heavily polluted with organic compounds.…”

Section: Treatment Of Spent Brine Regenerantmentioning

confidence: 99%

Brine Effluents: Characteristics, Environmental Impacts, and Their Handling

Purwasasmita

Wenten

2016

J. Eng. Technol. Sci.

Abstract. Brine discharge is one of the largest sources of wastewater from industrial processes. Because of the environmental impacts arising from improper treatment of brine discharge and more rigorous regulations of pollution control, industries have started to focus on waste minimization and improving the process of wastewater treatment. Several approaches have been proposed to provide a strategy for brine handling by recovering both brine and water or to remove pollutant components so it complies with environmental regulations when discharged. One of the most promising alternatives to brine disposal is reusing the brine, which results in reduction of pollution, minimizing waste volume and salt recovery. The brine may also contain valuable components that could be recovered for profitable use. Also, water recovery from brine effluent is generally performed to save water. In the case of rejected brine from desalination plants, water recovery from higher brine concentrations has huge potential for salt production. This paper gives an overview of different types of brine effluents, their sources and characteristics. Also discussed are impacts of brine on the environment and management options related to their characteristics.

“…The membrane can be used as molecular separation unit, contacting device, diffuser, reactor, catalyst, emulsification unit, hybrid process, etc. [2][3][4][5][6][7][8][9][10][11][12][13][14][15]. Ion-exchange membrane (IEM) is a charged membrane which is mainly used as a selective separator for ionic components.…”

Section: Introductionmentioning

confidence: 99%

Improving ion-exchange membrane properties by the role of nanoparticles

AIP Conference Proceedings

Khoiruddin

2017

Abstract. Extensive application of synthetic ion-exchange membrane (IEM) in many areas has necessitated the improvement of their properties. Recently, the introduction of nanoparticles into polymeric membrane has attracted growing interest since the combination of both materials results in better properties. This well-known mixed-matrix membrane exhibits superior characteristics compared to an individual polymeric membrane. Properties of the nanoparticles such as electrical conductivity, hydrophilicity, and adsorption capacity can be utilized to produce the IEM with better physicochemical, electrochemical, and mechanical characteristics. The nanoparticles may also be used to achieve a specific characteristic such as an antibacterial property and monovalent ion permselectivity. In this paper, preparation, the role of inorganic materials and performance of mixed-matrix IEM are reviewed. In addition, challenges facing mixed-matrix IEM and strategies taken to overcome those challenges and future perspectives are discussed.