Minus Filtration integrates advanced filtration technology with nanomaterials to offer a versatile solution for water purification across various scenarios: Drinking Water: Our advanced membrane technology is highly effective in removing PFAS, even when concentrations are very low. It has been rigorously tested and validated to meet EPA standards, achieving levels below 4 parts per trillion and a Hazard Index of less than 1, ensuring your drinking water is safe and clean. Wastewater Treatment: The membrane performs equally well in treating wastewater, including challenging environments like landfill leachate. While pre-treatment and periodic cleaning might be required due to the complexity of chemicals present, our design ensures efficiency in wastewater treatment applications. Broad Applicability: Minus Filtration is adaptable for use in diverse settings, from individual households to large-scale industrial facilities. Whether you're filtering water for a single home or managing hundreds of millions of gallons daily in a city or industrial setting, our membrane can be customized and optimized to fit into various systems, ensuring scalability and effectiveness in all water treatment needs.

PFAS, or Per- and Polyfluoroalkyl Substances, are a group of man-made chemicals used in various industrial and consumer products for their water and oil repellent properties. They are a concern for water quality because they are persistent in the environment, do not break down easily, and have been linked to adverse health effects, including cancer, liver damage, immune system effects, and developmental issues, even at low concentrations.

PFAS contamination is a global issue, with detections in water supplies across many countries. Due to their widespread use and persistence, PFAS have been found in drinking water, surface water, and groundwater sources, affecting both urban and rural areas. The extent of contamination can vary widely, but it's a significant concern due to the health implications and the challenge of removing these chemicals from water.

Yes, Minus Filtration significantly reduces health risks by removing PFAS to levels well below current health advisory limits, ensuring the water is safe for consumption. By filtering out these persistent chemicals, Minus Filtration helps mitigate the potential health impacts associated with long-term exposure to PFAS.

Minus Filtration utilizes a mechanical membrane system, setting it apart from traditional methods like Granular Activated Carbon (GAC), Ion Exchange (IX), or Reverse Osmosis (RO) in several key ways: No Additional Waste or Byproducts: Unlike GAC, IX, or RO, Minus Filtration's mechanical membrane process does not produce additional waste or byproducts during filtration, making it more environmentally friendly and an operationally simpler solution for customers. High Water Recovery Rate: In drinking water settings, Minus Filtration achieves a remarkable > 99% water recovery rate due to an advanced interlayer that enhances membrane permeability. This efficiency means very little water is wasted. Wastewater Management: While some wastewater is generated, it's in a concentrated liquid form, which is easier to treat or destroy compared to the solid forms produced by GAC or IX. This approach simplifies the subsequent treatment or disposal process. Environmental Impact: Traditional methods like GAC and IX often result in pollutants, including PFAS, being solidified into mixtures that are difficult to treat. These end up in landfills or are incinerated, leading to further environmental and health issues. Minus Filtration avoids this by keeping pollutants in a more manageable liquid form. System Design: The nanofiltration system in Minus Filtration features two channels: one for clean water that passes through the membrane, and another to collect concentrated pollutants/PFAS, ensuring efficient separation and easier management of contaminants.

Yes, Minus Filtration is highly scalable: Residential to Municipal: From point-of-entry systems for homes to large-scale facilities treating hundreds of millions of gallons per day, our membrane technology can be tailored to fit various operational sizes. Customization: We offer customization in membrane elements to match the specific needs of different applications, ensuring efficiency regardless of the scale.

Minus Filtration offers a cost-effective solution for water treatment, both in terms of initial investment (capex) and ongoing operational costs, when compared to traditional methods like Granular Activated Carbon (GAC), Ion Exchange (IX), and Reverse Osmosis (RO): Cost Efficiency: Minus Filtration's facility system is designed to be less expensive from the start to the end of its lifecycle. Here's how: GAC and IX: These methods require a significant footprint and infrastructure, constant replacement of media, media regeneration, and often additional treatment steps, which increase both capital and operational costs. Minus Filtration's system, on the other hand, is modular and plug-and-play, reducing the facility footprint and requiring minimal changes to existing infrastructure. RO: Reverse Osmosis systems are known for being costly due to their complexity, high pressure needs, and the necessity to add back nutrients that are removed along with contaminants. They are also prone to fouling, which can lead to increased maintenance expenses. Minus Filtration combines high performance with lower pressure requirements, a longer service life, and the preservation of nutrients, making it more cost-effective. Operational Savings: With fewer maintenance requirements and an extended service life, operational budgets are significantly lower. Residential Systems: In residential point-of-entry systems, Minus Filtration delivers savings to clients through longer service life, less waste generated, simpler system requirements, and safer disposal.

Installing Minus Filtration systems is designed to be straightforward: Modular Design: Our systems are modular and plug-and-play, which means they can be easily integrated into existing water treatment infrastructures with minimal modifications. Professional Installation: While the design is user-friendly, we recommend professional installation to ensure optimal setup, especially for larger facility systems. For residential systems, detailed installation guides are provided, and support is available. Pre-Treatment Integration: If pre-treatment like sand filters or ultrafiltration is necessary, our team works with clients to integrate these seamlessly into the system setup.

Minus Filtration's technology goes beyond just PFAS removal due to the unique membrane design and the comprehensive understanding of water treatment that was kept in mind during development. Here's what it can effectively remove: Pharmaceutical Products: The system is designed to filter out various pharmaceuticals that might contaminate water sources. Pesticides: It efficiently rejects pesticides, ensuring safer water for consumption and use. Heavy Metals: The membrane's design allows for the removal of heavy metals, protecting against their harmful effects. Other Substances: Besides these, the filtration process can also target other organic and inorganic contaminants. The effectiveness of Minus Filtration is due to the membrane's unique and tunable features: Nano-sized Pores: These tiny pores can block a wide range of contaminants based on size. Charged Surface: The charged surface of the membrane helps in reducing fouling and enhance selectivity, which maintains high efficiency over time by preventing the buildup of contaminants on the membrane.

While Minus Filtration offers advanced capabilities in water treatment, there are specific limitations to its design: Not Designed for Large Solids: Minus Filtration is not intended for the removal of large suspended solids or very large particles in water. Such particles can block the membrane's nano-sized pores, potentially reducing its service life. Selective Filtration: What sets Minus Filtration apart is its capability for solute-solute separation. This means: Selective Rejection: The membrane can selectively reject certain solutes while allowing others to pass through. This selectivity is a significant advancement, allowing for the preservation of key nutrients in the water. Nutrient Retention: Unlike Reverse Osmosis (RO), which removes virtually all substances from water, including beneficial nutrients, Minus Filtration retains these nutrients, providing a healthier, tastier water output. This selective filtration is a key differentiator, making Minus Filtration more suitable for applications where nutrient preservation is desired.

Maintenance and fouling are important aspects of any filtration system, and Minus Filtration has been designed with these in mind to ensure ease of operation and longevity: Maintenance Simplicity: Minus Filtration systems are engineered to simplify maintenance for operators. The design focuses on making the maintenance process straightforward, reducing downtime and operational complexity. Long Service Life: In municipal facility drinking water settings, our membranes are anticipated to have a service life of up to 10 years. This longevity is due to the use of robust advanced materials and a resilient design, which significantly reduces the frequency of replacements, thereby lowering long-term costs. Fouling Reduction: The incorporation of charged monomers on the membrane surface plays a crucial role in reducing fouling. These charged surfaces repel and reject contaminants, preventing them from adhering to the membrane, which helps maintain efficiency over time. Backwashing: Periodic backwashing is necessary to keep the system running efficiently. However, Minus Filtration is designing systems to be resilient against service disruptions during maintenance. This includes: Multi-Channel Systems: These allow for parts of the system to be taken offline for cleaning or maintenance while others continue to operate, ensuring continuous water treatment. Separate Trains: Similar to multi-channel systems, having separate treatment trains within the same system means that maintenance can be performed on one train without affecting the overall operation, maintaining service continuity. By focusing on these design elements, Minus Filtration aims to provide a system that not only performs effectively but also requires less frequent and less disruptive maintenance, offering cost savings and operational efficiency.

Minus Filtration is dedicated to offering a comprehensive solution for our clients, including the destruction of PFAS. Here's how we approach this: Partnership Network: We have established a network of partners who specialize in destruction technologies, ensuring that our solution is not limited to filtration but extends to the complete lifecycle of PFAS management. Concentration for Economical Destruction: Destruction technologies face scalability issues because applying them to vast quantities of water is often not cost-effective. Minus Filtration solves this by concentrating the PFAS waste into a more manageable form, making destruction more economical. Instead of treating millions of gallons of water directly, we focus on treating a concentrated waste stream, which significantly reduces the cost and complexity. Exploration of Technologies: Our team is actively researching and exploring various effective destruction technologies to integrate into our system. This ongoing work aims to ensure that once PFAS is filtered out, we can offer a method to destroy it efficiently, reducing operational strain and environmental impact. By concentrating PFAS into a form suitable for destruction, Minus Filtration facilitates the use of these technologies, making the entire process from filtration to destruction more feasible and sustainable for our clients.

Minus Filtration utilizes a mechanical membrane system, setting it apart from traditional methods like Granular Activated Carbon (GAC), Ion Exchange (IX), or Reverse Osmosis (RO) in several key ways: No Additional Waste or Byproducts: Unlike GAC, IX, or RO, Minus Filtration's mechanical membrane process does not produce additional waste or byproducts during filtration, making it more environmentally friendly. High Water Recovery Rate: In drinking water settings, Minus Filtration achieves a remarkable 99% water recovery rate due to an advanced interlayer that enhances membrane permeability. This efficiency means very little water is wasted. Wastewater Management: While some wastewater is generated, it's in a concentrated liquid form, which is easier to treat or destroy compared to the solid forms produced by GAC or IX. This approach simplifies the subsequent treatment or disposal process. Environmental Impact: Traditional methods like GAC and IX often result in pollutants, including PFAS, being solidified into mixtures that are difficult to treat. These end up in landfills or are incinerated, leading to further environmental and health issues. Minus Filtration avoids this by keeping pollutants in a far more manageable liquid form. System Design: The nanofiltration system in Minus Filtration features two channels: one for clean water that passes through the membrane, and another to collect concentrated pollutants/PFAS, ensuring efficient separation and easier management of contaminants.

Minus Filtration prioritizes water quality and safety through: Advanced Filtration Technology: Our nanofiltration membranes are designed to remove contaminants like PFAS to levels below EPA standards, ensuring the water is safe for consumption. Regular Testing: We recommend and support regular testing of the treated water to confirm it meets all health and safety guidelines. Certifications: Our systems aim to comply with relevant water treatment standards and certifications, ensuring that the quality of water output is consistently high.

Minus Filtration is committed not only to providing high-performance filtration solutions but also to environmental responsibility, particularly concerning the disposal of our membranes. Here’s how we handle the end-of-life for our products: Responsible Disposal: Unlike traditional methods like Granular Activated Carbon (GAC) and Ion Exchange (IX) where improper disposal can reintroduce PFAS into the environment, Minus Filtration has established protocols to ensure safe disposal. When our membranes reach the end of their service life, whether in facility or residential settings, we provide a structured process. Return and Exchange Program: We have a return system where clients can send back their used membranes to us in exchange for new ones. This not only ensures that the disposal is managed responsibly but also ensure efficiency is maintained. Recycling of Materials: Our process includes recycling parts and materials from the used membranes, reducing waste and the environmental footprint of our products. This approach helps in preventing environmental harm and keeps PFAS from re-entering the community or water sources.

Minus Filtration provides comprehensive post-installation support: Technical Support: Our team is available for ongoing technical assistance, troubleshooting, and optimization of the system. Maintenance Training: We offer training for operators to ensure they can perform routine maintenance effectively, reducing the need for external service calls. Warranty and Service Agreements: We provide warranties on our products and offer service agreements for periodic checks and maintenance to keep the system running smoothly.