Course detail

Wastewater treatment technology

FCH-MCO_TCOAcad. year: 2011/2012

Wastewater (WW), summary of wastewater treatment methods, technology lines, physical methods of WW treatment, physico-chemical and chemical processes, biological processes, aerobic and anaerobic biological processes, nitrogen and phosphorus elimination, systems with growing biomass, waterworks sewage, sewage stabilization, sewage disposal and possibilities of sewage utilization.

Language of instruction

Czech

Number of ECTS credits

3

Mode of study

Not applicable.

Learning outcomes of the course unit

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.

Prerequisites

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

Co-requisites

Not applicable.

Planned learning activities and teaching methods

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

Assesment methods and criteria linked to learning outcomes

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.


Course curriculum

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.






Work placements

Not applicable.

Aims

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.

Specification of controlled education, way of implementation and compensation for absences

none

Recommended optional programme components

Not applicable.

Prerequisites and corequisites

Not applicable.

Basic literature

Not applicable.

Recommended reading

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

Classification of course in study plans

Type of course unit

 

Lecture

26 hours, optionally

Teacher / Lecturer

Guided consultation in combined form of studies

52 hours, optionally

Teacher / Lecturer