Winter 2020
Wastewater Treatment Plant Assignment
Handed out:
Due Date:
The original assignment would have been to complete a conceptual design of a waste water (sewage)
treatment plant as a group:
‐ Preliminary Treatment
‐ Primary Treatment
‐ Secondary Treatment
‐ Tertiary Treatment
‐ Sludge Treatment
Given the changes to things over the last couple of weeks, this will be modified. Instead of doing a
group WWTP design, you are each going to do research into an existing WWTP, and outline the details
of the individual treatment processes of that plant. The assignment will be written in the same fashion
as a Technical Report, with title page, table of contents, introduction, discussion, conclusions,
eferences, etc.
Tasks:
‐ The assignment shall be submitted as a technical
ief (small tech report).
‐ Choose a WWTP in Ontario, and research the details of that plant.
‐ The
ief shall describe and be laid out in the order of the WWTP design.
‐ The
ief will contain details about each individual process, including the flow rates, dimensions,
treatment efficiency (where available), and your own interpretation on whether the process is
meeting the requirements of wastewater treatment. If not, then what could be modified to
ing the treatment up to standards.
‐ A diagram/schematic of the WWTP facilities. Ensure the schematic is labeled and printed to a
legible size (11x17 paper is prefe
ed). This could include scans/clips of the available reports
about the plant, or visuals from other sources (properly cited).
The final assignment (#3) will be marked on professional presentation of the overall work.
Assignment is worth 35% of final grade.
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WATR3000: Water & Wastewater Treatment Winter 2020
Loyalist College
me & Number
scriptions
ommendations
matics, etc.)
Cover Page:
‐ Assignment Title
‐ Professor
‐ Due Date
‐ Student Na
Brief Layout:
‐ Cover Page
‐ Table of Contents, Figures, & Appendix
‐ Introduction
‐ WWTP Location
‐ WWTP Design De
‐ Conclusion & Rec
‐ Appendix (Calculations, Sche
ark Breakdown:
10
M
Technical Brief
Overall Presentation /10
Flows, Population /5
Racks & Screens /5
Grit Chambers /5
Primary Clarifier /5
Aeration /5
Secondary Clarifier /5
Disinfection /5
Sludge Treatment /5
Receiving Water Body /5
Plant Schematic /5
Plant Efficiency /5
Additional Information /5
Total /80
Note:
early‐2010s, every treatment plant in Ontario has been required to post reports related to the
of the plants themselves, including the details of each individual process, as well as annual
ew Assignment outline, the original assignment outline is attached. There may
e some information there that could be useful to your research.
As of the
processes
eports related to treatment efficiencies, problems, mitigations, etc. If a municipality runs their own
plant, these will most likely be posted on the municipal web page. It is possible there is a web page
specifically for a Utilities group within the municipality, where these reports are instead posted (this is
the case with Kingston). If the municipality does not run the plant, then the reports are most likely
posted on the OCWA webpage instead. These reports should provide you with almost all the
information you require.
*Also included with this n
Winter 2020
Wastewater Treatment Plant Assignment
The purpose of this assignment is to complete a conceptual design of a waste water (sewage) treatment
plant:
- Preliminary Treatment
- Primary Treatment
- Secondary Treatment
- Tertiary Treatment
- Sludge Treatment
Tasks:
- The assignment shall be submitted as a technical
ief (small tech report).
- Revise and include the WTP design and description from assignment #2.
- The
ief shall describe and be laid out in the order of the WTP design and then WWTP design.
- The
ief will contain all required calculations. All calculations shall be printed in a digital form
(no rough notes in pen/pencil)
- WWTP Location Plan.
- Two (2) diagram/schematic in AutoCAD format; the WTP & WWTP facilities. Ensure the
schematic is labeled and printed to a legible size (11x17 paper is prefe
ed).
The final assignment (#3) will be marked on professional presentation of the overall work.
Assignment is worth 35% of final grade.
Cover Page:
- Assignment Title
- Professor
- Due Date
- Group Number
- Student Names & Numbers
Brief Layout:
- Cover Page
- Table of Contents, Figures, & Appendix
- Introduction
- WTP & WWTP Location
- WTP & WWTP Design Description
- Conclusion & Recommendations
- Appendix (Calculations, Schematics, etc.)
Handed out: Wednesday, Mar. 25, 2020
Due Date: Monday, Apr. 4, 2020
ORIGINAL ASSIGNMENT OUTLINE - THIS IS FOR INFORMATION PURPOSES ONLY
Winter 2020
WWTP Assignment Parameters
)
The City of Belleville has reviewed and approved your RFP for completing a new WWTP design. The City
has indicated that the existing treatment plant is out of date and its life cycle is over, and is not worth
spending money on
inging it up to standard. Therefore, the new treatment plant must be for the
entire City’s demand (existing and future).
The existing population is 2BE,0D0 and the future growth is expected to grow at a rate of 0.D% for the
next 25 years.
a) Overall plant surface area = 2a00 m² - problem with it being too small? scratch entirely?
) Minimum spacing between tanks for access = 3.b m
c) Maximum daily flow to be calculated using Harmon Formula
d) Minimum daily flow is 60% of the average daily flow
e) Influent BOD = 24c mg/l and SS = 26d mg/l
f) Primary clarifier detention time = 1 hr
g) Secondary clarifier tank detention time = 2 hr
h) 15e0 m3/d activated sludge system
i) F/M ratio = 0.3
j) MLVSS concentration = 21a0 mg/l
k) Grit chamber detention time = 20 min
l) Number of grit chambers 2-4
m) Number of aeration tanks 2-4
n) Number of primary clarifiers 2-3
o) Secondary clarifier, same # of tanks as the primary
p) BOD removal for primary clarifiers = 35% with all basins in operation, and 30% with one basin
out of service
q) Maximum effluent BOD if discharging to the lake = 15 mg/l, if discharging to the river = 12 mg/l
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Winter 2020
Mark Breakdown
Technical Brief /20
Overall Presentation /10
Source Selection /5
Racks & Screens /5
Grit Chambers /5
Primary Clarifier /10
Aeration /10
Secondary Clarifier /5
Disinfection /5
Sludge Treatment /5
Plant Schematic /20
Total /100