scholarly journals Treatment of Acid-Effluent by Diffusion-Dialysis and Acid-Retardation.

1992 ◽  
Vol 15 (3) ◽  
pp. 195-203
Author(s):  
Yoshio SATO ◽  
Katsuo MURAYAMA ◽  
Toshihiro NAKAI
Keyword(s):  
Diffusion Dialysis ◽  
Acid Retardation

scholarly journals Innovative BPPO Anion Exchange Membranes Formulation Using Diffusion Dialysis-Enhanced Acid Regeneration System

Membranes ◽  
2021 ◽  
Vol 11 (5) ◽  
pp. 311
Author(s):  
Muhammad Imran Khan ◽  
Majeda Khraisheh ◽  
Fares AlMomani
Keyword(s):  
Anion Exchange ◽  
Room Temperature ◽  
Feed Solution ◽  
Exchange Capacity ◽  
Anion Exchange Membranes ◽  
Regeneration System ◽  
Waste Streams ◽  
Acid Recovery ◽  
Aqueous Waste ◽  
Diffusion Dialysis

Recycling of acid from aqueous waste streams is crucial not only from the environmental point of view but also for maturing the feasible method (diffusion dialysis). Anion exchange membrane (AEM)–based diffusion dialysis process is one of the beneficial ways to recover acid from aqueous waste streams. In this article, the synthesis of a series of brominated poly (2, 6–dimethyl-1, 4–phenylene oxide) (BPPO)-based anion exchange membranes (AEMs) through quaternization with triphenylphosphine (TPP) were reported for acid recovery via diffusion dialysis process. The successful synthesis of the prepared membranes was confirmed by Fourier transform infrared (FTIR) spectroscopy. The as-synthesized anion exchange membranes represented water uptake (WR) of 44 to 66%, ion exchange capacity of (IEC) of 1.22 to 1.86 mmol/g, and linear swelling ratio (LSR) of 8 to 20%. They exhibited excellent thermal, mechanical, and acid stability. They showed homogeneous morphology. The acid recovery performance of the synthesized AEMs was investigated in a two compartment stack using simulated mixture of HCl and FeCl2 as feed solution at room temperature. For the synthesized anion exchange membranes TPP–43 to TPP–100, the diffusion dialysis coefficient of acid (UH+) was in the range of 6.7 to 26.3 (10−3 m/h) whereas separation factor (S) was in the range of 27 to 49 at 25 °C. Obtained results revealed that diffusion dialysis performance of the synthesized AEMs was higher than the commercial membrane DF–120B (UH+ = 0.004 m/h, S = 24.3) at room temperature. It showed that the prepared AEMs here could be excellent candidates for the diffusion dialysis process.

Separation and recovery of sulfuric acid from acidic vanadium leaching solution by diffusion dialysis

2012 ◽  
Vol 96 ◽  
pp. 44-49 ◽  
Author(s):  
Wang Li ◽  
Yimin Zhang ◽  
Jing Huang ◽  
Xiaobo Zhu ◽  
Yi Wang
Keyword(s):  
Sulfuric Acid ◽  
Leaching Solution ◽  
Diffusion Dialysis

High-performance porous anion exchange membranes for efficient acid recovery from acidic wastewater by diffusion dialysis

2021 ◽  
Vol 624 ◽  
pp. 119116
Author(s):  
Jiuyang Lin ◽  
Junming Huang ◽  
Jing Wang ◽  
Junwei Yu ◽  
Xinqiang You ◽  
...  
Keyword(s):  
Anion Exchange ◽  
High Performance ◽  
Anion Exchange Membranes ◽  
Acid Recovery ◽  
Diffusion Dialysis ◽  
Acidic Wastewater

Development of high performance anion exchange membranes for diffusion dialysis process

2021 ◽  
Vol 221 ◽  
pp. 281-290
Author(s):  
Muhammad Imran Khan ◽  
Jinzhan Su ◽  
Liejin Guo
Keyword(s):  
Anion Exchange ◽  
High Performance ◽  
Anion Exchange Membranes ◽  
Diffusion Dialysis

Diffusion Dialysis

2014 ◽  
pp. 1-2
Author(s):  
Heiner Strathmann
Keyword(s):  
Diffusion Dialysis
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