Separation of ammonium salts from coking wastewater with nanofiltration combined with diafiltration

Yin, Naiqiang; Yang, Gang; Zhong, Zhaoxiang; Xing, Weihong

doi:10.1016/j.desal.2010.10.034

Cited by 43 publications

(15 citation statements)

References 21 publications

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“…Water Environment Research, Volume 84, Number 10-Copyright © 2012 Water Environment Federation NF membrane system was applied to separate high concentration of ammonium thiosulfate from ammonium thiocyanate in coking wastewater (Yin et al, 2011). The experimental results showed that the NF membrane selectively retained (NH 4 ) 2 S 2 O 3 with a rejection of 95% at a concentration of more than 60 g /L.…”

Section: Oilsmentioning

confidence: 99%

Membrane Processes

Pellegrin¹,

Greiner²,

Aguinaldo³

et al. 2012

Water Environment Research

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This review, for literature published in 2011, contains information related to membrane processes for municipal and industrial applications. This review is a subsection of the Treatment Systems section of the annual Water Environment Federation literature review and covers the following topics: pretreatment, membrane bioreactor (MBR) configuration, design, nutrient removal, operation, industrial treatment, fixed film and anaerobic membrane systems, reuse, microconstituents removal, membrane technology advances, membrane fouling, and modeling. Other sub-sections of the Treatment Systems section that might relate to this literature review include: Biological Fixed-Film Systems, Activated Sludge and Other Aerobic Suspended Culture Processes, Anaerobic Processes, Water Reclamation and Reuse. The following sections might also have related information on membrane processes: Industrial Wastes, Hazardous Wastes, and Fate and Effects of Pollutants. Pretreatment Evaluations of membranes used for pretreatment are typically as a pretreatment to improve reverse osmosis (RO) performance. For the Miami-Dade County indirect potable reuse (IPR) project, the selection of a microfiltration (MF) system for RO pre-treatment required review of the various membrane configurations, and operational and cleaning

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Section: Oilsmentioning

confidence: 99%

Membrane Processes

Pellegrin¹,

Greiner²,

Aguinaldo³

et al. 2012

Water Environment Research

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“…The traditional methods to solve the problem include electrodialysis, 15 membrane filtration, 16,17 wet-oxidation, 18 biological treatment, 7 ion exchange, 19,20 adsorption, 21,22 and so on. However, the above methods suffer from high costs, low yields, complex processes, long times or low efficiency.…”

Section: ■ Introductionmentioning

confidence: 99%

Solid–Liquid Stable Equilibrium of the Aqueous Quaternary System NH₄SCN–(NH₄)₂S₂O₃–(NH₄)₂SO₄–H₂O at 303.15 K

Zhao

et al. 2014

J. Chem. Eng. Data

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The salts of thiocyanate, thiosulfate, and sulfate exist in a variety of industrial processes such as textile, coking, and electroplating. The effluents from these industries cannot be discharged directly owing to their severe environmental pollution. In addition, there is an opportunity to recover significant commercial value from these effluents. The phase equilibria and phase diagram play a major role in separating and recovering useful resources. In this paper, the phase diagrams of the system NH 4 SCN− (NH 4 ) 2 S 2 O 3 −(NH 4 ) 2 SO 4 −H 2 O and its subsystems at 303.15 K were determined by an isothermal dissolution equilibrium method. In the phase diagram of the quaternary system, there is one invariant point, three univariant curves and three crystallized regions. The invariant point is cosaturated with ammonium thiocyanate, ammonium sulfate, and ammonium thiosulfate (NH 4 SCN + (NH 4 ) 2 SO 4 + (NH 4 ) 2 S 2 O 3 ). The three crystallization regions correspond to ammonium sulfate ((NH 4 ) 2 SO 4 ), ammonium thiocyanate (NH 4 SCN), and ammonium thiosulfate ((NH 4 ) 2 S 2 O 3 ). The first one is the largest area, but the latter two are much smaller ones. The phase diagram can be utilized to separate and recover NH 4 SCN, (NH 4 ) 2 SO 4 , and (NH 4 ) 2 S 2 O 3 selectively and individually from the desulfurization effluents. The result of this paper shows that the environmental pollutant can be converted to the valuable product by a simple, economical, and green process.

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“…RO has also been used to remove cyanides and ammonium salts, though at concentrations lower than those included in this study [ 17 ]. Additionally, when two thiocyanate salts are present, NF and/or RO membranes can be employed not only for recovering them, but also for separating one salt from another [ 18 , 19 ]. Recently, polymer inclusion membranes (PIM) have been also proposed as an appropriate method for cleaning-up of thiocyanate from gold mine waters [ 20 ].…”

Section: Introductionmentioning

confidence: 99%

Treatment of Aqueous Effluents from Steel Manufacturing with High Thiocyanate Concentration by Reverse Osmosis

et al. 2020

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The feasibility of reverse osmosis (RO) for treating coking wastewaters from a steel manufacturing plant, rich in ammonium thiocyanate was assessed. DOW FILMTECTM SW30 membrane performance with synthetic and real thiocyanate-containing solutions was established at the laboratory and (onsite) pilot plant scale. No short-term fouling was observed, and the data followed the known solution-diffusion model and the film theory. Those models, together with non-steady state mass balances, were used in simulations that aided to design a full scale two-stage RO plant for thiocyanate separation.

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Separation of ammonium salts from coking wastewater with nanofiltration combined with diafiltration

Cited by 43 publications

References 21 publications

Membrane Processes

Membrane Processes

Solid–Liquid Stable Equilibrium of the Aqueous Quaternary System NH₄SCN–(NH₄)₂S₂O₃–(NH₄)₂SO₄–H₂O at 303.15 K

Treatment of Aqueous Effluents from Steel Manufacturing with High Thiocyanate Concentration by Reverse Osmosis

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Separation of ammonium salts from coking wastewater with nanofiltration combined with diafiltration

Cited by 43 publications

References 21 publications

Membrane Processes

Membrane Processes

Solid–Liquid Stable Equilibrium of the Aqueous Quaternary System NH4SCN–(NH4)2S2O3–(NH4)2SO4–H2O at 303.15 K

Treatment of Aqueous Effluents from Steel Manufacturing with High Thiocyanate Concentration by Reverse Osmosis

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Solid–Liquid Stable Equilibrium of the Aqueous Quaternary System NH₄SCN–(NH₄)₂S₂O₃–(NH₄)₂SO₄–H₂O at 303.15 K