Recovery of phosphoric acid from mixed waste acids of semiconductor industry by diffusion dialysis and vacuum distillation

Kim, Ju-Yup; Shin, Chang-Hoon; Choi, Hyung-Joo; Bae, Wookeun

doi:10.1016/j.seppur.2012.02.013

Cited by 44 publications

(29 citation statements)

References 11 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Among other compatible acid recovery techniques, DD is a relatively environment-friendly technology due to its high acid recovery yields and high metal rejection efficiency, minimal chemical usage, low energy consumption, and operational simplicity [8][9][10]. In addition, recent research has investigated the utility of an anion exchange membrane (AEM) to recover acid and reject metal ions [11][12][13][14][15][16].…”

Section: Applied Environmental Researchmentioning

confidence: 99%

Acidic Recovery from Wastewater of Automotive Battery Plant Using Membrane Technology

Chaimongkalayon

Thanasupsin

2016

App. Envi. Res.

View full text Add to dashboard Cite

Diffusion dialysis (DD) equipped with anion exchange membranes (AEMs) is used as an effective tool to recover acidfrom various types of waste acid solutions. The aim of this study was to investigate the possibility of using the DD process to recover sulfuric acid (HsSO4) from the acidic wastewater from an automotive battery plant. A numbers of experimental runs was conducted to optimize the equipment’s operating conditions, particularly variations in feed flow and flow rate ratios . The results showed that H2SO4 permeated well through the AEM, while metal ions were efficiently rejected. The recovery of H2SO4 increased as flow rate decreased. Approximately 84.5% of H2SO4 could be recovered at 9 .38 × 10 -5 m3 h-1 m-2. Pb2+ rejection was 69.5%. In addition, recovery efficiency could be improved by increasing the flow rate ratio. At the highest flow rate ratio, DD could recover up to 90% of H2SO4 while the lowest rejection of Pb2+ (61%) was obtained. Also, the investigation of the effect of variation of flow rate ratio on recovery efficiency revealed that the optimum flow rate ratio should be controlled at around 1 to 1.2.

show abstract

Section: Applied Environmental Researchmentioning

confidence: 99%

Acidic Recovery from Wastewater of Automotive Battery Plant Using Membrane Technology

Chaimongkalayon

Thanasupsin

2016

App. Envi. Res.

View full text Add to dashboard Cite

show abstract

“…The plate-and-frame diffusion dialysis (PFDD, Figure 10 a) module is one kind of continuous dialyzers which is comprised of a series of flat membrane sheets to enhance the effective areas for acid recovery [ 123 ]. Li [ 124 ] recovered H 2 SO 4 from acid leaching solution (containing metal ions such as V, Al and Fe ions) using a PFDD module with the commercial DF-120 membrane.…”

Section: The Integration Of Diffusion Dialysis With Other Technolomentioning

confidence: 99%

Diffusion Dialysis for Acid Recovery from Acidic Waste Solutions: Anion Exchange Membranes and Technology Integration

Zhang

Wang

2020

Membranes

View full text Add to dashboard Cite

Inorganic acids are commonly used in mining, metallurgical, metal-processing, and nuclear-fuel-reprocessing industries in various processes, such as leaching, etching, electroplating, and metal-refining. Large amounts of spent acidic liquids containing toxic metal ion complexes are produced during these operations, which pose a serious hazard to the living and non-living environment. Developing economic and eco-friendly regeneration approaches to recover acid and valuable metals from these industrial effluents has focused the interest of the research community. Diffusion dialysis (DD) using anion exchange membranes (AEMs) driven by an activity gradient is considered an effective technology with a low energy consumption and little environmental contamination. In addition, the properties of AEMs have an important effect on the DD process. Hence, this paper gives a critical review of the properties of AEMs, including their acid permeability, membrane stability, and acid selectivity during the DD process for acid recovery. Furthermore, the DD processes using AEMs integrated with various technologies, such as pressure, an electric field, or continuous operation are discussed to enhance its potential for industrial applications. Finally, some directions are provided for the further development of AEMs in DD for acid recovery from acidic waste solutions.

show abstract

“…The treatment technology of wastewater is indispensable in the sustainable development of our society. As an example, the recovery of acid (HCl) from its FeCl 2 mixture is still a major scientific challenge from the perspective of environmental protection [1][2][3][4][5][6][7][8]. Diffusion dialysis (DD) for acid recovery is superior to other separation processes (neutralization [9], extraction [10], evaporation [11], electrodialysis [12]) in many aspects, such as high efficiency, low operating cost, low energy consumption, and environment friendliness.…”

Section: Introductionmentioning

confidence: 99%

Branched Polyvinyl Alcohol Hybrid Membrane for Acid Recovery via Diffusion Dialysis

Cheng

et al. 2019

Chem Eng & Technol

View full text Add to dashboard Cite

A branched polymer was prepared by grafting allyltrimethylammonium chloride onto polyvinyl alcohol (PVA) via free-radical polymerization. Afterwards, a series of hybrid membranes were prepared by sol-gel cross-linking between quaternary ammonium-PVA and tetraethoxysilane. The obtained membranes were characterized in terms of infrared spectroscopy, ion exchange capacity, water uptake, linear expansion ratio, and acid resistance. The thermal properties of the membranes were investigated as well. The diffusion dialysis performances of the membranes were tested by using a simulated feed solution containing HCl and FeCl 2 . The diffusion dialysis coefficients and the separation factors were much better than those of the commercial DF-120 membrane.

show abstract

Recovery of phosphoric acid from mixed waste acids of semiconductor industry by diffusion dialysis and vacuum distillation

Cited by 44 publications

References 11 publications

Acidic Recovery from Wastewater of Automotive Battery Plant Using Membrane Technology

Acidic Recovery from Wastewater of Automotive Battery Plant Using Membrane Technology

Diffusion Dialysis for Acid Recovery from Acidic Waste Solutions: Anion Exchange Membranes and Technology Integration

Branched Polyvinyl Alcohol Hybrid Membrane for Acid Recovery via Diffusion Dialysis

Contact Info

Product

Resources

About