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Bark and biochar in horizontal flow filters effectively remove microplastics from stormwater

Zenodo (CERN European Organization for Nuclear Research) 2024 Score: 35 ? 0–100 AI score estimating relevance to the microplastics field. Papers below 30 are filtered from public browse.

Claudia Lorenz Gabriella Rullander, Gabriella Rullander, Gabriella Rullander, Gabriella Rullander, Claudia Lorenz Claudia Lorenz Claudia Lorenz Claudia Lorenz Claudia Lorenz Claudia Lorenz Claudia Lorenz Claudia Lorenz Claudia Lorenz Claudia Lorenz Gabriella Rullander, Claudia Lorenz Claudia Lorenz Claudia Lorenz Claudia Lorenz Claudia Lorenz Claudia Lorenz Claudia Lorenz Claudia Lorenz Claudia Lorenz Claudia Lorenz Gabriella Rullander, Claudia Lorenz Claudia Lorenz Claudia Lorenz Claudia Lorenz Claudia Lorenz Claudia Lorenz Claudia Lorenz Claudia Lorenz Claudia Lorenz Ann-Margret Strömvall, Claudia Lorenz Claudia Lorenz Claudia Lorenz Claudia Lorenz Claudia Lorenz Claudia Lorenz Claudia Lorenz Claudia Lorenz Claudia Lorenz Claudia Lorenz Claudia Lorenz Claudia Lorenz Claudia Lorenz Claudia Lorenz Claudia Lorenz Claudia Lorenz Claudia Lorenz Claudia Lorenz Claudia Lorenz Claudia Lorenz Jes Vollertsen, Jes Vollertsen, Jes Vollertsen, Jes Vollertsen, Ann-Margret Strömvall, Ann-Margret Strömvall, Ann-Margret Strömvall, Dalahmeh Sahar, Dalahmeh Sahar, Jes Vollertsen, Jes Vollertsen, Jes Vollertsen, Jes Vollertsen, Dalahmeh Sahar, Dalahmeh Sahar, Ann-Margret Strömvall, Claudia Lorenz Claudia Lorenz Claudia Lorenz Claudia Lorenz Claudia Lorenz Jes Vollertsen, Claudia Lorenz Claudia Lorenz Jes Vollertsen, Claudia Lorenz Claudia Lorenz Jes Vollertsen, Claudia Lorenz Jes Vollertsen, Jes Vollertsen, Claudia Lorenz Claudia Lorenz Jes Vollertsen, Jes Vollertsen, Jes Vollertsen, Claudia Lorenz Jes Vollertsen, Claudia Lorenz Claudia Lorenz Jes Vollertsen, Jes Vollertsen, Claudia Lorenz Claudia Lorenz Jes Vollertsen, Dalahmeh Sahar, Dalahmeh Sahar, Claudia Lorenz Claudia Lorenz Dalahmeh Sahar, Dalahmeh Sahar, Claudia Lorenz Gabriella Rullander, Gabriella Rullander, Claudia Lorenz Jes Vollertsen, Jes Vollertsen, Jes Vollertsen, Jes Vollertsen, Jes Vollertsen, Jes Vollertsen, Ann-Margret Strömvall, Jes Vollertsen, Jes Vollertsen, Claudia Lorenz Claudia Lorenz Claudia Lorenz Claudia Lorenz Claudia Lorenz Claudia Lorenz Jes Vollertsen, Jes Vollertsen, Jes Vollertsen, Jes Vollertsen, Jes Vollertsen, Jes Vollertsen, Jes Vollertsen, Jes Vollertsen, Jes Vollertsen, Jes Vollertsen, Jes Vollertsen, Jes Vollertsen, Claudia Lorenz

Summary

Researchers investigated the removal of stormwater microplastics using horizontal flow filters filled with bark and biochar, finding that both materials retained over 97% of polyamide, polyethylene, polypropylene, and polystyrene particles across size ranges of 25-900 µm when analyzed by µFTIR imaging.

Polymers

PA PE PP PS

Organic materials such as bark and biochar can be effective filter materials to treat stormwater. However, the efficiency of such filters in retaining microplastics (MPs) – an emerging stormwater pollutant – has not been sufficiently studied. This study investigated the removal and transport of a mixture of MPs commonly associated with stormwater. Different MP types (polyamide, polyethylene, polypropylene, and polystyrene) were mixed into the initial 2 cm material of horizontal bark and biochar filters of 25, 50, and 100 cm lengths. The MP types consisted of spherical and fragmented shapes in size ranges of 25–900 µm. The filters were subjected to a water flow of 5 mL/min for one week, and the total effluents were analyzed for MPs by µFTIR imaging. To gain a deeper insight, one 100 cm bark filter replica was split into 10 cm segments, and MPs in each segment were extracted and counted. The results showed that MPs were retained effectively, ¿97 Also see: https://micro2024.sciencesconf.org/548213/document

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