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DRPS : Course Catalogue : School of Engineering : Civil

Undergraduate Course: Water and Wastewater Systems 3 (CIVE09026)

Course Outline
School School of Engineering College College of Science and Engineering
Course type Standard Availability Available to all students
Credit level (Normal year taken) SCQF Level 9 (Year 3 Undergraduate) Credits 10
Home subject area Civil Other subject area None
Course website None Taught in Gaelic? No
Course description This course extends the hydrology of the 2nd year Water Resources course (U00470) into flood studies and urban drainage and covers the practical considerations to be made resulting from the demand for water from community development by considering water consumption, water sources, water quality, water treatment, wastewater treatment and disposal.
Entry Requirements
Pre-requisites Co-requisites
Prohibited Combinations Other requirements None
Additional Costs None
Information for Visiting Students
Pre-requisites None
Displayed in Visiting Students Prospectus? Yes
Course Delivery Information
Delivery period: 2010/11 Semester 1, Available to all students (SV1) WebCT enabled:  Yes Quota:  None
Location Activity Description Weeks Monday Tuesday Wednesday Thursday Friday
King's BuildingsLecture1-11 14:00 - 15:50
King's BuildingsTutorial1-11 16:10 - 17:00
First Class Week 1, Monday, 14:00 - 15:50, Zone: King's Buildings. Lecture Theatre 1, Daniel Rutherford Building
Exam Information
Exam Diet Paper Name Hours:Minutes Stationery Requirements Comments
Main Exam Diet S1 (December)Water and Wastewater Systems 31:3016 sides / 2 x graph
Resit Exam Diet (August)1:3016 sides / 2 x graph
Summary of Intended Learning Outcomes
By the end of the module, the student should be able to:
- calculate expected river flood flows for chosen return periods;
design storm water pipe drainage systems;
- carry out process design for settling and softening in water treatment;
- describe common water treatment processes; and
- describe typical sewage treatment processes.
Assessment Information
Degree examination: 100%
Special Arrangements
Additional Information
Academic description Not entered
Syllabus Lectures: Titles & Contents

Water Treatment Section

1. Drinking Water Quality Standards (Lecture 1)
Historical Aspects; Water Quality Standards and Treatment Objectives; EU Drinking Water Directive; WHO Guidelines for Drinking Water Quality; Water Quality Standards.

2. Introduction to Water Treatment (Lectures 2 and 3)
Sources of Water; Classes of Water Treatment; Screens; Coagulant; Rapid Mix Unit; Flocculator; Settling Tank; Sludge Blanket Clarifiers (upflow sedimentation tanks); Filtration; Fluoride and Chlorine; Basic Water Chemistry.

3 Coagulation and Flocculation (Lectures 4 and 5)
Colloidal Suspension; Coagulation Processes; Coagulation Chemicals (aluminium compounds; sodium aluminate; iron salts; lime; coagulant aids); Operation of Coagulation and Flocculation Processes; Mixing Theory; Flocculation (perikinetic flocculation; orthokinetic flocculation; floc rupture; values of G and t in flocculation; flocculation equipment); The Jar Test.

4 Sludge Blanket Clarifiers and Flotation Systems (Lectures 6 and 7)
Sludge Blanket Clarification Systems (rapid mixing and delay time; inlet system to the clarifier; sludge blanket and flocculation zone; supernatant clear water zone; excess sludge removal system; clarifiers water collection system); Types of Sludge Blanket Clarifiers (hopper bottomed; flat bottomed; pulsator; plate type; pulsator; super pulsator); Plate Settling in Sludge Blanket Clarifiers; Flotation (flotation using blown air; flotation using dissolved air); Flotation Units (general technology; water feed; formation of bubbles; collection and removal of sludge; typical flotation units).

Wastewater Treatment Section

5 Characterisation of Organic Effluent (Lecture 8)
Biological Oxygen Demand (BOD test; calculation of the reaction rate coefficient k); Other Methods of Assessing Oxygen Demand; Other Parameters Used in Urban Water and Wastewater Description.

6 Stream Pollution and Effluent Standards (Lectures 9 and 10)
Organic Stream Pollution; Prediction of Organic Stream Pollution; Effluent Discharge Standards; Best Management Practice.

7 Introduction to Sewage Treatment (Lectures 11 and 12)
Sewerage Systems; Sewers (combined sewers; separate systems; partially separate system; estimation of flow in sewers); Sewage treatment $ Design Flow Rates; Sewage Treatment (physical operations; chemical operations; biological processes); Engineering Classification of Sewage Treatment Stages; Layout of Sewage Treatment Plants.

8. Preliminary Treatment Units (Lecture 13)
Construction of Screening Unit; Design of Screening Units; Design Details of Screening Unit (location; protecting structure; cleaning mechanism; operating controls); Comminutors (hydraulic design; design details); Grit Removal; General Provisions; Types of Grit removal Chambers.

9 Primary Treatment part I (Lecture 14)
Classification of Settling Behaviours (class I, II and III settling); The Ideal Settling Tank.

10 Primary Treatment part II (Lectures 15 and 16)
General Comments on the Design of Sedimentation Tanks; Loading Rate Methods; Clements Design Method (design settling velocity; horizontal velocity; rectangular settling tanks; circular settling tanks; time ratio); Economics of Construction (rectangular settling tanks; circular settling tanks); Design Details (rectangular settling tanks; circular settling tanks); Design Method (rectangular sedimentation tank; radial flow sedimentation tank); Hydraulic Losses; General Design Details; Details of Various Types of Sedimentation Tanks (storm tanks; primary sedimentation tanks; secondary sedimentation); Sedimentation Aids.

11 Introduction to Biological Treatment (Lectures 17 and 18)
Waste Stabilisation Ponds; Process Microbiology; Facultative Ponds; Constructed Treatment Wetlands; Sustainable Urban Drainage Systems.

Tutorials and Practicals: Titles & Contents

The problem sheets (discussed during tutorials) listed below relate directly to the lectures listed above. The corresponding exercises will not be assessed, and contain additional material for higher ability students.

Problem Sheet No. 1
Drinking Water Quality Standards.

Problem Sheet No. 2
Water Treatment.

Problem Sheet No. 3
Coagulation and Flocculation.

Problem Sheet No. 4
Sludge Blanket Clarifiers and Flotation Systems

Problem Sheet No. 5
Characterisation of Organic Effluent; Stream Pollution and Effluent Standards.

Problem Sheet No. 6
Sewage Treatment; Primary Treatment Units.

Problem Sheet No. 7
Primary Treatment

Problem Sheet No. 8
Biological Treatment.
Transferable skills Not entered
Reading list Scholz, M. (2006). Wetland Systems to Control Urban Runoff, Elsevier, Amsterdam, The Netherlands.
Study Abroad Not entered
Study Pattern Not entered
Keywords Not entered
Course organiser Dr Miklas Scholz
Tel: (0131 6)50 7701
Course secretary Miss Nicola Marshall
Tel: (0131 6)50 5687
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