Czech

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Requirements for quality of discharged wastewater, characterisation of wastewater flowrates and composition of wastewaters, sewerage of wastewater, processes for urban and industrial wastewater treatment and sludge treatment, technologies and technological lines for urban and industrial wastewater treatment and possibilities of their intensifying.

Knowledge from courses: Hydrochemistry, Analytical chemistry, Chemical engineering, Technology of drinking water treatment, Practical training on water treatment technology I

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Teaching methods depend on the type of course unit as specified in the article 7 of BUT Rules for Studies and Examinations.

The exam consists of written and oral parts. Written part consists of two running tests during semester. Results of written tests and oral exam are evaluated.

1. Wastewater sources. Characterisation of wastewater flow and composition. Requirements for wastewater discharge.
2. Wastewater sewerage and sewerage networks.
3. Municipal and industrial wastewater treatment plant flow diagrams.
4. Physical and physical-chemical processes of wastewater treatment (mechanical pretreatment, bar racks and screens, grit removal, removal of grease and oil, primary sedimentation, filtration, flow and composition equalisation).
5. Hydraulic regime in continuously flow systems. Gas transfer, flotation, neutralisation, precipitation, adsorption, oxidation and reduction, ion exchange, membrane processes, disinfection).
6. Biological wastewater treatment processes. Classification of processes (ORP, biomass form, reactor configuration).
7. Heavy metals in wastewater treatment processes.
8. Aerobic wastewater treatment processes. Activated sludge and activated sludge process. Kinetics of microorganisms growth and substrate removal. Kinetic selection of microorganisms.
9. Operational parameters. Influence of principal process variables on treatment efficiency. Biomass and activated sludge mass balance and production. Activated sludge sedimentation characteristics, reasons and prevention of sludge bulking. Oxygen requirement and supply.
10. Technological configurations of activated sludge processes. Stabilisation of sludge.
11. Anaerobic biological processes, mechanisms and influencing factors. Granular biomass. Anaerobic wastewater treatment processes. Anaerobic sludge digestion. Anaerobic bioreactors.
12. Nutrient removal from wastewater. Nitrification and denitrification, luxury uptake. Biochemistry and kinetics of processes. Metabolic selection of microorganisms. Technological modification of nutrient removal processes.
13. Attached biomass systems. Theoretical background of biofilm processes. Kinetics of processes. Trickling filters. Rotating biological contactors. Expanded bed and fluidised bed bioreactors. Combined activated sludge and attached biomass bioreactors.
14. Treatment, storage and disposal of wastewater treatment sludge. Benefits and restrictions of wastewater treatment sludge utilization.

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The aim of the course is to get the students acquainted with requirements for quality of drained off waste water, to provide information about sewage disposal and waste water sewer system, about specification of amount and composition of domestic sewage and industrial wastes, about requirements, processes and technologies for waste water and sludge treatment and processing.

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Dohányos, M. a kol : Čištění odpadních vod, Praha 1998. (CS)