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Selecting an immersed MBR curtain for variable wastewater
Compare membrane material, cleaning limits and module fit for an existing or new industrial MBR.
HOSON WATER editorial ·
Begin with operating and cleaning chemistry
List the expected process pH, temperature and chemicals, then separately list planned cleaning agents, concentrations and exposure times. HOSON documents PVDF composite and PM composite variants in the LJ1 family. Ask for the current model’s operating and cleaning limits in writing. Compare each against the wastewater and cleaning exposure rather than assuming that a broad material label covers every mixture.
Compare the assembly as well as the membrane
Record the available rack dimensions, permeate connections, air scour arrangement, lifting height and water levels. A curtain that fits the footprint can still require a different header, airflow distribution or removal path. For a retrofit, ask the supplier to identify interface changes and whether trial installation or a pilot is needed before ordering the full set.
Define how the owner will evaluate recovery
Request design filtration and cleaning cycles, monitoring points and guidance for unusual pressure rise. Record membrane condition, filtrate quality and recovery after each clean during the test period. This record links the material choice to actual site performance and informs the initial spare-module plan.