Effective recovery of acids from iron-based electrolytes using graphene oxide membrane filters

2014 ◽  
Vol 2 (21) ◽  
pp. 7734-7737 ◽  
Author(s):  
Pengzhan Sun ◽  
Kunlin Wang ◽  
Jinquan Wei ◽  
Minlin Zhong ◽  
Dehai Wu ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Membrane Transport ◽  
Anion Exchange ◽  
High Purity ◽  
Anion Exchange Membranes ◽  
Membrane Filters ◽  
Iron Based ◽  
Efficient Recovery ◽  
Diffusion Dialysis ◽  
Oxide Membrane

Efficient recovery of acids from iron-based electrolytes using GO membranes was demonstrated. The trans-membrane transport of H+ was two orders of magnitude greater than that of Fe3+. The circular penetration of iron-based electrolytes could produce acids with high purity, which was superior to other traditional diffusion dialysis processes conducted by polymer-based anion-exchange membranes.

Fabrication of asymmetrical diffusion dialysis membranes for rapid acid recovery with high purity

2015 ◽  
Vol 3 (47) ◽  
pp. 24000-24007 ◽  
Author(s):  
Xiaocheng Lin ◽  
Ezzatollah Shamsaei ◽  
Biao Kong ◽  
Jefferson Zhe Liu ◽  
Tongwen Xu ◽  
...  
Keyword(s):  
Energy Consumption ◽  
Environmental Impact ◽  
Anion Exchange ◽  
High Purity ◽  
Process Efficiency ◽  
Industrial Processes ◽  
Anion Exchange Membranes ◽  
Acid Recovery ◽  
Dialysis Membranes ◽  
Diffusion Dialysis

Anion exchange membranes with fast acid permeation and high retention of salts have been fabricated to increase the process efficiency of acid recovery from various industrial processes via diffusion dialysis, thereby greatly reducing their energy consumption and environmental impact.

Graphene oxide modified porous anion exchange membranes for acid recovery through diffusion dialysis

2020 ◽  
Vol 175 ◽  
pp. 49-59
Author(s):  
Wenya Liu ◽  
Meng Li ◽  
Mengjie Sun ◽  
Xu Zhang ◽  
Cuiming Wu ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Anion Exchange ◽  
Anion Exchange Membranes ◽  
Acid Recovery ◽  
Through Diffusion ◽  
Diffusion Dialysis

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.

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
Sign in / Sign up

Export Citation Format

Share Document