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Preprint · SSRN Electronic Journal · January 1, 2026

Optical Measurement of Activated Sludge Concentration and Level Using a Multichannel Infrared

Makhsud Idrisovich Makhmudov, Uktam Farkhodovich Mamirov, Siroj Sobirovich Nurov, Narzullo Mirzoyev, Saidmurod Latipov, Khusen Timirov