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Upstream Microplastic Removal in Industrial Wastewater: A Pilot Study on Agglomeration-Fixation-Reaction Based Treatment for Water Reuse and Waste Recovery
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Researchers tested an automated pilot plant using organosilane-induced agglomeration to remove microplastics from industrial packaging-production wastewater at high loads (1,725 mg/L). Across 25 continuous test runs, the system removed 97.4% of microplastics by mass and 99.1% by particle count while also reducing chemical oxygen demand by 78.8%.
This pilot study investigated an automated pilot plant for removing microplastics (MPs) from industrial wastewater that are generated during packaging production. MP removal is based on organosilane-induced agglomeration-fixation (clump & skim technology) followed by separation. The wastewater had high MP loads (1725 ± 377 mg/L; 673 ± 183 million particles/L) and an average COD of 7570 ± 1339 mg/L. Over 25 continuous test runs, the system achieved consistent performance, removing an average of 97.4% of MPs by mass and 99.1% by particle count, while reducing the COD by 78.8%. Projected over a year, this equates to preventing 1.7 tons of MPs and 6 tons of COD from entering the sewage system. Turbidity and photometric TSS measurements proved useful for process control. The approach supports water reuse—with water savings up to 80%—and allows recovery of agglomerates for recycling and reuse. Targeting pollutant removal upstream at the source provides multiple financial and environmental benefits, including lower overall energy demands, higher removal efficiencies, and process water reuse. This provides financial and environmental incentives for industries to implement sustainable solutions for pollutants and microplastic removal.
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When Technology Meets Sustainability: Microplastic Removal from Industrial Wastewater, Including Impact Analysis and Life Cycle Assessment
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Researchers assessed a novel pilot plant that removes microplastics from industrial wastewater using organosilane-based agglomeration followed by belt filtration, and conducted a life cycle assessment. The system achieved 98% MP removal by mass and 99.9987% by particle count while reducing chemical oxygen demand by 96%, with the life cycle assessment confirming the environmental feasibility of the approach.
Beyond Microplastics: Implementation of a Two-Stage Removal Process for Microplastics and Chemical Oxygen Demand in Industrial Wastewater Streams
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Researchers developed and tested a two-stage pilot-scale treatment process for removing microplastics and chemical oxygen demand from industrial wastewater at a German plastic manufacturer. The system achieved average microplastic removal rates above 98% and reduced chemical oxygen demand by 94%, preventing an estimated 2.7 metric tons of microplastic per year from entering municipal wastewater systems. The study demonstrates that upstream treatment at industrial sources can effectively reduce the microplastic burden on public wastewater infrastructure.
Beyond Microplastics: Implementation of a Two-Stage Removal Process for Microplastics and Chemical Oxygen Demand in Industrial Wastewater Streams
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Researchers developed and tested a pilot-scale two-stage treatment process for removing microplastics and chemical oxygen demand (COD) from industrial plastic manufacturing wastewater, achieving reductions of 97-98% for microplastics and 94% for COD across eight test phases, preventing an estimated 2.7 tonnes of microplastic emissions per year.
Beyond Microplastics: Implementation of a Two-Stage Removal Process for Microplastics and Chemical Oxygen Demand in Industrial Wastewater Streams
AI summary Read the abstract
Researchers developed and tested a pilot-scale two-stage treatment process for removing microplastics and chemical oxygen demand (COD) from industrial plastic manufacturing wastewater, achieving reductions of 97-98% for microplastics and 94% for COD across eight test phases, preventing an estimated 2.7 tonnes of microplastic emissions per year.
When technology meets sustainability – microplastic removal from industrial wastewater including impact analysis and life cycle assessment
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Researchers conducted a Life Cycle Assessment (LCA) of a novel pilot plant for removing microplastics and chemical oxygen demand (COD) from industrial plastics processing wastewater in Germany, using the Wasser 3.0 PE-X approach based on physical agglomeration and organosilane-based chemical fixation. The study evaluated the environmental sustainability of implementing this microplastic removal technology in an industrial wastewater context.
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