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graphene membranes for
Graphene separation membranes can tackle the toughest environments where conventional membrane materials fall short, initiating a new chapter of sustainability in industrial operations.
Ora's Graphene Oxide Filtration Membranes
Clean Water Treatment
The surge in demand for safe drinking water has necessitated the development of specialized filtration membranes that can efficiently treat both groundwater and wastewater.
Oil & Gas
Graphene oxide membranes enable efficient separation of oil and water. The membrane selectively allows water to pass through while repelling oil molecules. This simplifies the oil-water separation process, improves oil recovery efficiency, and reduces water contamination significantly.
Pulp & Paper
Graphene oxide has been identified by the Alliance for Pulp & Paper Technology Innovation (APPTI) for having all the necessary characteristics needed in a separation membrane to handle the concentration of its most challenging by-product: black liquor. Current evaporation solutions are costly and harmful for the environment.
graphene goes where
no separation membrane has gone before
Graphene oxide possesses unique properties that make it highly suitable for tackling separations in the most challenging industrial processes.
Tunable thicknesses and pore size
High chemical & thermal stability
case study #1
from waste to
Ora produces specialized membranes that can be utilized for water purification through filtration processes.Graphene oxide membranes possess a unique structure with nanoscale pores that can effectively filter out contaminants, including bacteria, viruses, heavy metals, and organic pollutants. The exceptional permeability and selectivity of graphene oxide membranes make them highly efficient in providing clean water.
Ora's Graphene Oxide Water Filtration Membrane
High Pollutant Rejection: The nanoscale pores in graphene oxide membranes combined with its high surface charge enable the removal of contaminants with smaller particle sizes.
High Water Flow Rates: The high permeability of graphene oxide membranes enables faster water flow rates compared to conventional filtration membranes.
Antifouling Properties: Graphene oxide's unique surface nature contributes to antifouling properties of the membrane. It can prevent the adhesion of contaminants onto the surface, reducing fouling and maintaining the filtration performance over an extended period.
Enhanced Oil Recovery (EOR): The oil and gas industry deals with large volumes of produced water that contain contaminants and high level of salts. By using graphene oxide membranes, the EOR process can be optimized, enabling the injection of water or other fluids while minimizing the injection of unwanted components, such as minerals or impurities.
Low Operating Costs: With its high flow rate and antifouling properties, Graphene oxide membranes treats larger volumes of oily water with longer operating cycles, without the need of extensive maintenance.
Gas Separation and Purification: Graphene oxide membranes shows high gas selectivity allow certain gases to permeate much faster than others.
case study #2
oil and gas
Graphene oxide membranes offer a remarkable capability to effectively separate oil and water. With their selective permeability, these membranes allow water to pass through while repelling oil molecules. This simplifies the oil-water separation process, leading to improved oil recovery efficiency and a significant reduction in water contamination.
Treated by Commercially Available PAN Membrane
Treated by Ora's Graphene Membrane
Separation of Oil & Water (Before and After)
case study #3
pulp & paper
The pulp and paper industry uses energy-intensive evaporators to dewater black liquor (BL) waste from the kraft making process. The United States alone consumes more than 173 trillion kJ of energy per year to concentrate black liquor.
Ora's graphene-based separation technology has the potential to improve he thermal evaporation process as it can handle the extreme chemical environment of BL (85°C and pH> 13), which is a challenge for the current polymer-based membranes.
Results from Ora's Graphene Oxide Black Liquor Filtration Membrane
"There is hardly a pollution, contamination, or environmental problem that cannot be prevented or remediated through the use of filtration and separation technologies."
AMERICAN FILTRATION & SEPARATIONS SOCIETY
FILTRATION tech needed TO meet
THE RACE TO ZERO EMISSIONS