DIFFUSION DIALYSIS TEST EQUIPMENT INTRODUCTION
DESALT Diffusion Dialysis (DD) test equipment was designed to test diffusion dialysis principle and effectiveness on spent alkali or spent acid solutions.
Diffusion dialysis is a process used to separate electrolytes from non-electrolytes or to desalt solutions.
The lab test equipment for diffusion dialysis includes:
​
-
Diffusion Dialysis Cell: These are the main units where the separation process occurs. It consists of compartments separated by membranes through which the diffusion of ions occurs.
-
Anion or Cation Selective Membranes: Selective membranes that allow the passage of ions based on their charge and size, facilitating the separation process.
-
Pump System: pumps and instruments to regulate the flow rates of the feed and dialysate solutions, ensuring optimal separation efficiency.
-
Monitoring and Control Instruments: Sensors and meters to monitor parameters such as pH, conductivity, and temperature, crucial for maintaining optimal conditions during the process can be added to custom made units.
​​
For more information, kindly get in touch with us.
Diffusion Dialysis Test Equipment Membrane Working Principle and Applications
The lab test equipment equipped with bipolar membranes (EDBM) is capable of producing acid and base solutions from the corresponding saline solution used as a feed by employing the water dissociation function of Bipolar Membranes.
DESALT-EDBM test equipment bipolar membranes consists of a sequence of three channels hosting the electrolyte solutions separated by three ion-exchange membranes: anion (AEM), cation (CEM), and bipolar (BPM). The two electrodes and an electrode rinse solution (ERS) are used to convert electricity into ionic current.
In the drawings and video above, we present the DESALT-EDBM bipolar membranes working principle.
When an electric potential is applied between the two electrodes, the water dissociation reaction takes place in the interlayer of the bipolar membrane, resulting in the production of protons and hydroxide ions. Due to the applied electric field, the ions are driven to opposite sides of the BPM based on their charge. Consequently, acidic and alkaline solutions are produced.
​
Bipolar electrodialysis is an innovative and efficient process that capitalizes on the unique properties of bipolar membranes to transform and separate ionic species.
​
Some more applications that can be tested with the lab scale system of bipolar electrodialysis (EDBM) include Lithium Hydroxide production in the lithium industry, NaOH and HCl production from RO brines, CO2 capturing plants, and many more applications as shown below.
​
DESALT-EDBM BIPOLAR ELECTRODIALYSIS TEST EQUIPMENT FEATURES
1
Designed for reliability
Designed with cutting-edge technology and engineered for perfection, DESALT bipolar electrodialysis test equipment guarantees accurate results every time. Whether you're in the laboratory or on the field, this advanced bipolar electrodialysis test equipment is sure to meet your treatment expectations.
2
High quality components
Its high-quality components and durable construction ensure long-lasting performance, making it a valuable investment for setting up a lab scale pilot plant system with bipolar electrodialysis technology.
3
Scalable lab test equipment results
Our test equipment or pilot plant for bipolar electrodialysis testing is designed to be scalable, making it perfect for both small and large-scale water and wastewater treatment operations.
4
Customizable
DESALT bipolar electrodialysis demo kit is fully customizable, from the power supply to the electrodialysis membrane stack configuration and design.
BIPOLAR ELECTODIALYSIS LAB PILOT PLANT ADVANTAGES
Bipolar Electrodialysis (BPED) is a process that uses an electrical current and ion-selective membranes to recover or produce chemicals from a solution.
A pilot plant or test equipment for bipolar electrodialysis has several advantages, including:
1. Scale-up
The bipolar electrodialysis test equipment allows for better understanding of the process parameters and performance for a future scale up of the system to an industrial scale level.
2. Representative Results
The bipolar electrodialysis test equipment or pilot plant can mimic the actual conditions of an industrial-scale plant, giving more accurate and representative results.
3. Process Optimization
The lab scale bipolar electrodialysis allows for optimization of the process parameters, such as current density, flow rate, and membrane configuration, to maximize efficiency and performance of bipolar membranes.
4. Cost Savings
A bipolar electrodialysis lab equipment can help to identify potential issues and optimize the process before full-scale production, saving time and money in the long run.
5. Flexibility
The bipolar electrodialysis membrane stacks can be easily modified to test different configurations and membranes, allowing for a more thorough understanding of the process and potential improvements of the bipolar electrodialysis process.