N on Dispersive Chemical Deacidification of Crude Palm Oil in Hollow Fiber Membrane Contactor

Env Prog and Sustain Energy

Khoiruddin

et al. 2018

Self Cite

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

Section: Common Application Of Membrane-based Processesmentioning

confidence: 99%

Recent advances in waste lube oils processing technologies

Widodo

Env Prog and Sustain Energy

Khoiruddin

et al. 2018

Self Cite

“…The oxidation of iodide to iodine using ozone as oxidation agent in the membrane contactor used as contacting device has shown promising results for iodine recovery from brine [51]. Compared to conventional contacting devices, the membrane contactor has some advantages, such as better contacting performance, larger interfacial area, and ease of direct scale-up [52,53]. With these advantages, this method could potentially be interesting for recovering iodine from brine.…”

Section: Treatment Of Brine Effluent From Desalination Processmentioning

confidence: 99%

Brine Effluents: Characteristics, Environmental Impacts, and Their Handling

Purwasasmita

Wenten

2016

J. Eng. Technol. Sci.

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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.

“…Membrane technology is widely developed due to its potential applications in almost every industrial sector . Energy efficiency, high separation capacity, high selectivity, reduction in a number of unit processes, and relatively low cost are several advantages of membrane technology that make this technology competitive in various applications . An ion‐exchange membrane (IEM) is a charged membrane that is used in electromembrane processes (e.g., electrodialysis, diffusion dialysis, electrolysis, electrodeionization) as an ion‐selective barrier and also as the key to the processes .…”

Section: Introductionmentioning

confidence: 99%

Surface modification of ion‐exchange membranes: Methods, characteristics, and performance

Khoiruddin

J of Applied Polymer Sci

Subagjo

et al. 2017

Self Cite

109

Considerable effort has been made to improve ion-exchange membrane (IEM) properties in order to achieve better performance of IEM-based processes in various applications. Surface modification is one of the effective ways to improve IEM properties. Various methods have been used to modify IEM surfaces, for example, plasma treatment, polymerization, solution casting, electrodeposition, and ion implantation. These methods are able to produce a thin and fine distributed layer and also to modify the chemical structure of the surface. The new layer can be adsorbed, deposited, or chemically bonded on a membrane surface. By using these methods, IEM properties are improved, and the desired or specific characteristics such as high monovalent ion permselectivity, low fuel crossover, and anti-organic-fouling property can be obtained. In this paper, methods for surface modification of IEMs are reviewed. Moreover, the effects of modification on IEM properties and performance are discussed.