Perfectly treated and purified water - whether wastewater, process water or drinking water -, the maximum recyclability of this valuable resource and the realization of cost-saving potentials are topics that concern the water industry, companies and users alike.
To achieve these goals, established as well as improved and new processes require innovative materials - this is where graphite products from SGL Carbon come into play. This applies to wastewater treatment and water treatment as well as to energy generation through salt concentration gradients (blue energy), In all these applications, our materials can help to exploit the full performance of the respective system.
Flexible graphite products for wastewater treatment
Electrochemical wastewater treatment processes like electrocoagulation or electrochemical disinfection can profit from the corrosion resistance and other outstanding benefits of SGL Carbon’s SIGRACELL® bipolar plates (BPP). The material is ideal for use in chemical-free wastewater treatment processes.
Solutions for water treatment made from flexible graphite
Various water treatment and purification process steps like coagulation, desalination, disinfection, purification, or softening can benefit from using flexible graphite products.
Technologies and methods in which SIGRACELL BPP, SIGRATHERM® flexible graphite foil or SIGRATHERM graphite sheets could be used, include
- Electrocoagulation (EC)
- Electrodialysis (ED)
- Electro deionization (EDI)
- Membrane capacitive deionization (MCDI)
- Electrochemical disinfection
- Water softening
Please contact us, if you would like to learn more about the benefits our materials provide for water treatment or just ask for samples.
Materials made from expanded graphite suitable for power generation from salinity gradients
For osmotic power generation, also known as salinity gradient power or blue energy, electrodes made from graphite bipolar plates and graphite current collectors could be ideal solutions: Due to their excellent corrosion resistance and high electrical conductivity.
SGL Carbon flexible graphite materials are successfully used e. g. for reverse electrodialysis (RED) and osmotic diffusion.
Components
SIGRACELL bipolar plates: Resistant electrodes for water treatment
SIGRACELL bipolar plates (BPP) are graphite composite materials made from high-quality expanded graphite and fluoropolymers or thermoset resins.
Graphite BPP made by SGL Carbon are suitable for use as high-performance electrodes in various water treatment applications and osmotic power generation.
SIGRATHERM Graphite foils and sheets: Ideal current collectors
Various SIGRACELL bipolar plate and SIGRATHERM foil grades available
Matched to your specific requirements, we identify the best solution from our broad range of materials for water treatment and osmotic power generation.
Application-specific suitability of our SIGRACELL and SIGRATHERM graphite materials
| Application | Technology | Materials | |
|---|---|---|---|
| SIGRACELL® BPP | SIGRATHERM® flexible graphite foils and sheets | ||
| Wastewater treatment | Electrocoagulation (EC) | ● | |
| Electrochemical disinfection | ● | ||
| Water treatment | Electrocoagulation (EC) | ● | |
| Electrodialysis (ED) | ● | ||
| Electro deionization (EDI) | ● | ||
| Membrane capacitive deionization (MCDI) | ● | ||
| Electrochemical disinfection | ● | ||
| Water softening | ● | ||
| Power generation from salinity gradients | Reverse electrodialysis (RED) / electrodialysis reversal (EDR) | ● | |
| Osmotic power generation | ● | ||
