The authors work in various roles at Pall Corporation, a wholly-owned subsidiary of Danaher Corporation specializing in high-tech filtration, separation and purification technologies. Serhat Oezeren is a global vertical market manager for chemical, polymer and recycling industries; Anoop Suvarna is a global battery materials manager; Rory Duncan is a global market manager in Pall’s Energy+ division; Julian Plumail is a global market manager for carbon capture; and Kartheek Anekella is a global technical strategy leader for alternative proteins. Views are the authors’ own.
What do smartphone screens, jet fuel and electric vehicle batteries have in common? Until recently, they represented some of the most stubborn waste challenges in corporate sustainability — materials so complex that recycling them seemed technically impossible or economically unfeasible.
But something remarkable is happening behind the scenes of major manufacturing operations. Technologies that many executives may not be aware of are cracking these ‘impossible’ cases, turning waste streams that once cost companies millions in disposal fees into new revenue sources.
Advanced filtration systems are transforming five critical industries. From breakthrough optical film recycling saving 24 million pounds of waste annually to EV battery recovery that could meet 30% of global demand by 2040, according to battery recycler Green Li-ion, companies deploying this ‘hidden infrastructure’ are capturing significant value while their competitors may not be aware of what's possible.
Understanding advanced filtration: The precision behind the process
Advanced filtration uses sophisticated technologies that remove microscopic contaminants to achieve unprecedented levels of purity and resource efficiency. These industrial systems can remove solid particles and other impurities from fluids and gases through multiple techniques.
The technologies often operate through multi-stage systems that combine depth filters for bulk contaminant removal, pleated cartridges for fine particle filtration, membrane filters for precise molecular separation, and coalescers that separate liquids from other liquids or gases. These systems are essential for protecting equipment, ensuring product quality, and improving efficiency across diverse industrial processes.
The global economy operates at just 6.9% circularity, according to a 2025 report from Circle Economy and Deloitte, leaving untapped value. Across multiple industries, forward-thinking companies are discovering that these advanced filtration technologies can unlock previously impossible circular economy benefits without compromising product performance. Here we look at some examples from hard to abate sectors.
1. Optical film recycling: Solving the 'impossible'
Perhaps most striking is the recent commercial-scale breakthrough in optical film recycling, long considered technically unfeasible due to extraordinary purity requirements. A major specialty polymer producer in Northeast Asia has successfully implemented commercial-scale solvent-based recycling using advanced filtration technology, granting them to operate a full-scale recycling plant that saves approximately 12,000 tons of CO2 emissions annually — equivalent to removing 2,600 cars from the road — while achieving virgin-quality performance from previously unrecyclable materials.
This was a pioneering achievement for the industry, as until then, this type of sophisticated recycling method had not been seen on a commercial scale. The producer now operates a full-scale commercial recycling plant powered by Pall filtration technology, transforming what was once waste into high-performance materials without compromising on product quality. The success addresses a rapidly growing market valued at $27.95 billion in 2024 and expected to reach $51.29 billion by 2032, where even microscopic particles become magnified defects in high-definition displays.
2. EV battery materials recovery
Demand for the global battery market is projected to reach approximately $174 billion to $200 billion in 2026, driven by rising electric vehicle adoption and energy storage, pressure intensifies on critical materials including lithium, cobalt and nickel, according to a report by Fortune Business Insights. Also, the EU's Battery Directive mandates lithium recovery rates of 50% by 2027 and 80% by 2031, creating regulatory urgency for effective recycling solutions.
Again, advanced filtration can be key to respond to this challenge. The filtration systems deployed in subsequent recovery stages — chemical precipitation, solvent extraction, and adsorbent beds — directly determine both the purity and economic value of recovered materials. By removing solid particles and contaminants while maintaining metal purity, advanced filtration enhances process efficiency, protects vital equipment, and maximizes the economic incentive for recycling expansion.
3. Sustainable aviation fuel production
A question that may be troubling airline executives is, “How do you fuel aircraft fleets that will carry double the number of passengers in the coming years while also cutting emissions?”
Forecasts indicate there will be 19.5 billion passenger journeys by 2042. One answer involves converting waste cooking oil into jet fuel, but there's a catch.
Bio-based materials vary significantly in particle size, composition, density, and viscosity, containing water, solids, gels, and trace metals. These impurities can damage processing equipment if inadequately removed. For that reason, filtration systems are essential.
A company's filtration system can extend operation from just two hours to a full week when processing highly contaminated vegetable oils.
4. Carbon capture optimization
Carbon Capture Utilization & Storage (CCUS) technology is projected to grow up to 24% over the next 4 years, reaching nearly $13 billion by 2030. However, impurities from captured CO2 — such as sulfur dioxide, nitrogen oxide, oxygen, and water — pose critical operational challenges, directly affecting efficiency and economics.
These contaminants disrupt operations, reduce capture efficiency, damage equipment, and increase maintenance costs.
Advanced filtration and separation technologies are essential throughout the CCUS value chain, especially for absorptive carbon capture. High-performance coalescers improve compressor operation by removing liquids and particulates, while high-efficiency filters at reservoir inlets prevent fouling and maintain purity for long-term storage.
5. Alternative protein innovation
With the global population projected to reach 10 billion by 2050 and more than one billion tons of food wasted annually, the upcycled food market is projected to reach $93.6 billion by 2033, according to market research.
Advanced filtration technology transforms agricultural by-products — for example, spent grain, fruit peels, oil seed cakes, and potato starch residues — into high-value, protein-rich alternatives through precise membrane filtration systems. There is an enormous amount of transformation potential with these technologies.
The path forward
The potential for success across diverse applications demonstrates the ability of advanced filtration technologies to unlock circular economy benefits without compromising performance. Avoiding such a trade-off is critical for industries previously considered hard to decarbonize.
However, realizing its full potential at scale requires coordinated economic policy and support. While the technology exists, what is needed now is the economic and policy environment to scale these solutions across all industries where this approach can make a significant difference.
This landscape shift isn’t farfetched. In Europe, packaging and battery regulations are driving demand for high-purity materials. By creating legislation, European governments are incentivizing investment and adoption in recycled materials. If congruent legislation could be passed for filtration, these technologies would be further normalized on the broader scale, maximizing their impact.
For investors and corporate leaders, advanced filtration represents an enabling infrastructure that transforms waste streams into value streams while delivering quantifiable sustainability outcomes. As enhanced ESG disclosure requirements drive demand for measurable environmental performance, the ‘hidden infrastructure’ of advanced filtration systems offers a pathway to achieve both sustainability targets and operational excellence, making it increasingly essential for forward-thinking manufacturers across sectors previously considered difficult to decarbonize.
