Challenges in Housing Utilities Sector

INVESTIGATION OF SEDIMENTATION PROPERTIES OF SLUDGE LIQUOR AT WASTEWATER TREATMENT PLANTS

Вестник МГСУ 5/2018 Том 13
  • Kulakov Artem Alekseevich - Vologda State University (VoGU) Candidate of Technical Sciences, Associate Professor of the Department of Water supply and Waste Water Treatment, Vologda State University (VoGU), 15 Lenina str., Vologda, 160000, Russian Federation; Этот e-mail адрес защищен от спам-ботов, для его просмотра у Вас должен быть включен Javascript .
  • Makisha Nikolay Alekseevich - Moscow State University of Civil Engineering (National Research University) (MGSU) Candidate of Technical Sciences, Associate Professor of the Department of Water Supply and Waste Water Treatment, Director of Education and Research Centre of Water Supply and Waste Water Treatment, Moscow State University of Civil Engineering (National Research University) (MGSU), 26 Yaroslavskoe shosse, Moscow, 129337, Russian Federation; Этот e-mail адрес защищен от спам-ботов, для его просмотра у Вас должен быть включен Javascript .
  • Shafigullina Alin Faritovna - Vologda Research Center of the Russian Academy of Sciences (VolSC RAS) Postgraduate Student, Vologda Research Center of the Russian Academy of Sciences (VolSC RAS), 56a Gorkogo str., Vologda, 160014, Russian Federation; Этот e-mail адрес защищен от спам-ботов, для его просмотра у Вас должен быть включен Javascript .
  • Harder Raimo - Bauhaus-university Weimar Diplom-Ingenieur, Lecturer, Transport System Planning Department, Bauhaus-university Weimar, 13 Marienstrasse, Weimar, Germany; Этот e-mail адрес защищен от спам-ботов, для его просмотра у Вас должен быть включен Javascript .

Страницы 643-650

Subject: the article focuses on investigation of kinetics of sludge liquor sedimentation and on determination of its characteristics; the relations between parameters of activated sludge such as mixed liquor suspended solids (MLSS), sludge-water phase boundary and sedimentation rate are highlighted. Research objectives: research on kinetics and parameters of activated sludge sedimentation at city wastewater treatment plants (WWTP). Materials and methods: field tests of sedimentation process of real sludge samples from different WWTP in laboratory cylinders are conducted, mathematical and graphical processing of the obtained results is carried out. Results: kinetics of sedimentation of sludge liquor with MLSS equal to 0.6…6.2 mg/l is described, main dependencies between sedimentation characteristics of activated sludge are obtained. The regularities of sedimentation of sludge with small and large MLSS are noted. Conclusions: kinetics of sludge sedimentation for various MLSS is determined, the rate of elimination of “sludge-water” phase boundary is determined.

DOI: 10.22227/1997-0935.2018.5.643-650

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