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Preprint · SSRN Electronic Journal · January 1, 2026

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

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