Koch Membrane Systems Inc. introduced the latest evolution of PURON submerged hollow fiber modules. The PURON HF module is designed for tertiary treatment, high solids water applications, RO pretreatment and surface water treatment. Based on the same revolutionary single-header, central aeration design as the PURON MBR module—the industry-leading cost- and energy-efficient wastewater treatment solution—the PURON HF module produces consistent, high-quality effluent that meets or exceeds most regulatory requirements. With a packing density increase of more than 44% and robust PVDF fibers, the PURON HF offers a reduced system footprint, high flux and lower capital costs.