University of Architecture, Civil Engineering and Geodesy

University of Architecture, Civil Engineering and Geodesy
Faculty of Hudrotechnics

Speciality: Hydraulic Engineering

(German language teaching course)

Subject: “Water Supply Sewerage, Water and Wastewater Treatment”

Exam Questionnaire

I. Water Supply Networks and Facilities

1. Basic Water Supply Systems and Schemes

2. Water Consumption: Norms, Regimes and Design Flowrates

3. Sources for Water Supply - Surface Waters and Groundwater: Quality and Peculiarities

4. River Water Intakes: Kinds and Structures

5. Reservoirs and Lakes Water Intakes: Kinds and Structures

6. Groundwater Intakes: Kinds, Structures and Peculiarities

7. Pipelines: Kinds, Structures, Construction and Testing

8. Water Supply Networks: Kinds, Structures and Design

9. Water Supply Networks Dimensioning

10. Service Reservoirs: Kinds, Structures and Volume

11. Industrial Water Supply: Basic Systems and Schemes

II. Sewer Networks and Facilities

1. Kinds of Wastewater. General Scheme of Sewerage. Kinds of Sewerage Schemes (Patterns)

2. Sewerage Systems: Kinds and Features

3. Sewer Pipes: Kinds, Joints, Foundation. Sewer Network Design

4. Dry Weather Design Flowrates

5. Rain Measurement: Parameters, Pluviographs, Hyetographs and Hydrographs.Selection of Design Rain

6. Determination of Design Runoff Quantity: Rational Method

7. Flow Processes in Sewer Networks

8. Hydraulic Dimensioning of Sewers

9. Sewerage Facilities. Manholes and Street Inlets

10. Drop Manholes: Kinds and Structures. Inverted Siphons

11. Flow Split and Regulation Chambers: Kinds and Structures

12. Detention (Retention) Basins: Kinds and Structures. Sewerage Pumping Stations

13. Construction, Testing and Admittance of Sewer Networks

III. Water Treatment Technologies

1. Methods, Processes, Technologies and Units for Water Treatment

2. Coagulants and Flocculent. Coagulation Processes: Kinds and Application

3. Water Precipitation: Processes and Facilities

4. Upflow Sludge Blanket Clarifiers: Processes and Facilities

5. Micromesh Screens. Filters: Kinds, Constructions and Operation

6. Water Disinfection: Reagents, Processes and Equipment

7. Water Stability. General Arrangement of Water Treatment Plants

IV. Wastewater Treatment Technologies

1. Wastewater Quality; General Classification

2. Aerobic and Anaerobic Biochemical Processes. Cycle of Carbon Transformation in the Nature

3. Ammonification, Nitrification and Denitrification. Cycle of Nitrogen in the Nature

4. Pollution Loads on the Receiving Water. Wastewater Quality Parameters - BOD, COD, TOC, PE.

Oxygen Balance in the Receiving Water

5. Ranking and Quality Standards of the Receiving Waters. Necessary Wastewater Treatment Efficiency

6. Methods, Processes and Facilities for Wastewater and Sludge Treatment. Basic Technological Schemes

7. Mechanical Wastewater Treatment Facilities - Bar Racks, Grit Chambers, Settling Tanks: Kinds,

Structures, Basic Parameters

8. Biological Processes of Wastewater Treatment: Fazes, Kinetics - Monod’s Equations

9. Wastewater Treatment Facilities with Suspended Biomass - Aerated Tanks: Kinds, Structures, Basic

Technological Parameters

10. Wastewater Treatment Facilities with Attached Biomass - Trickling Filters: Kinds, Structures, Basic

Technological Parameters

11. Sludge Treatment: Processes, Facilities, Basic Technological Parameters

RECCOMMENDABLE LITERATURE:

1. Arsov, R., Lecture Notes (Power Point slides), UACEG, Sofia, 2003

2. Tchobanoglous, G., Wastewater Engineering: Treatment, Disposal and Reuse, Metcalf & Eddy, Inc., Mc Graw-Hill, Inc., N.Y., 1991

3. Walker, R., Water Supply, Treatment and Distribution, Prentice-Hill, Engl. Cliffs, 1978

4. Fair, G., J. Geyer and D. Ocun, Water and Wastewater Engineering, vol. I and vol. II, John Wiley, N.Y., 1966

5. Babbit, H., J. Doland and J. Cleasly, Water Supply Engineering, Mc Graw-Hill, N.Y., 1962

Sofia, February - April 2003 Lecturer:

(Prof. D.Sc. Eng. Roumen Arsov)