Assignment: Flyers College Potable Water
Scenario:
Like the Hawaiian islands, a sea floor rift created a new island. Unusual weather patterns have kept it hidden under a dense fog for millions of years, allowing the ecosystem to fully develop before its discovery. Marianists have claimed the island as "Flyer Nation". The first structure built there is docking infrastructure in a very large natural harbor, which they humorously call their front porch.
The Marianists are planning a school there. They are hoping for a first year class of 25 students, with about a 10% increase yearly. Father Jim, Rector for UD, has asked you to provide the first plan for potable water. His background is in philosophy, theology, and business administration. He is knowledgeable on the mission and finances of the project, but you are on your own for technical information.
Natural resources are abundant on this semi-tropical island, including fresh water, fish, fruit trees, seed pods, etc. Check with Ambassador Taylor (my twin sister from a parallel universe) about specific items. With the port mentioned above, you will be able to ship in other materials -an expense, of course.
Feasibility Study
Your team is one of several hired to determine what feasible options exist for potable water treatment. The contract asks each team to provide one treatment train consisting of at least front-end estimates, coagulation, ab/adsorption, and disinfection. Of course, you want YOUR team to be selected for the final design contract in the future; added value in your feasibility study will be seen as evidence of excellence.
Your deliverable will be a design report. Details of the requirements, and a few examples of added value are provided in a separate file.
Academic world / the rest of the world
The scenario above is light-hearted, but the need for quality water in underdeveloped regions is real. Practice here, where no one lives or dies by your decision. Ask questions; connect to your other coursework and experience; connect to the news.
A few deliverables relate only to the coursework side of this project. Details on the journal of progress and surveys of progress are provided in separate files.
Consider the following questions:
What population will your project design serve?
Qualitative description: Who are the people necessary for this school to operate well? Will there need to be any additional community? For what growth are you designing?
Will they use water in the same way as we do in Dayton, where water is abundant and very inexpensive? If not, how will you guide them into new patterns of water use?
Quantitative design estimate: how many people, of what ages (if that matters)?
How much water per day? Remember, you will need to provide citable information to support your judgement.
Composition:
What source water will you use for your initial design? Water samples from Flyer Nation are not available yet. You must choose a suitable reference source for an estimate of the source water composition, relevant to the assigned category of surface water or groundwater.
What treatment goals are you setting? Relevant resources could include NPDWS, CDC or WHO guidelines, international references...
What preliminary equipment is needed to bring your source into treatment?
Will this change the water composition? Will there be waste material to dispose of?
Preparation for Coagulation/Flocculation:
Coagulation typically is used for different purposes in groundwater than surface water sources. What function does your water source need from coagulation / flocculation?
How will you determine what coagulant dose is likely to be needed? For the purpose of the feasibility study you will have to select a range, and will have to estimate the results.
coagulant choice
likely dose range
are any additives needed or helpful?
What resources will you use to provide credible support for your choices?
The lead designer for this section is responsible for determining the products of coagulation/flocculation. However, if a clarifier or filtration unit is planned for removing the solids, another member could design the added unit to balance the team member work load.
Preparation for Ab/ad-sortion / Filtration:
What type of constituents in your source water or treatment process might be candidate contaminants for a sorption process?
Where will you get estimates for an isotherm model fitting parameters?
What resources will you use to provide credible support for your choices?
Filtration may be a suitable part of your process for removing solids following flocculation. If used, should it come before or after the sorption process, or integrated together? Why?
Preparation for Disinfection:
US public water systems require a chlorination process as part of disinfection. Does Flyer Nation have the same need and assumptions?
What disinfection process will you propose?
What resources will you use to provide credible support for your choices.
Attachment:- Flyers College Potable Water.rar