Instructions Assignments are to be done individually. Assignments are to be submitted and received on Turnitin no later than 11pm on Friday the 15th of May. Late assignments will be penalized by 10%...

Instructions

Assignments are to be done individually. Assignments are to be submitted and received on Turnitin no later than 11pm on Friday the 15th of May. Late assignments will be penalized by 10% per day late.

You are to write a report of no more than three pages in length for the body (Executive Summary to Conclusion), plus supplementary material in any appendices (which can be as many pages as you need). You do not need a title page for the project proposal.

Background

You are working for a company that specialises in water treatment systems. Representatives of a small South Australian community have hired your company to solve a water treatment issues. The community is in need of additional water, but has thankfully found a potential water source that provides 2000L per day. However, after testing, it was determined that it had a number of contaminants as follows;

Aluminium (acid-soluable): 18mg/L

Ammonia: 15mg/L

Sulfates: 2200mg/L

Sodium: 250mg/L

Coliphages: 1,000 cells per 100mL

Escherichia coli: 20,000 cells per 100mL

BOD5: 100mg/L

Suspended particles of sand with minimum diameter of 0.1mm

The community has an unused packed bed air stripper with 5 transfer units of 1 metre in height and 1 metre in diameter. It has no packing material anymore. The community also has large open space for both a trickling filter and grit chamber

Your Task

You have been asked to assess the suitability of refurbishing the exiting air stripper to determine to what extent it could treat the contaminants in the new water supply (you will obviously need new packing material, the size and type is up to you).

You are also to undertake preliminary designs for a “reasonably” sized trickling filter and a grit chamber to treat “whatever can be treated to make the water safe according to relevant standards”.

Also provide discussion on additional requirements and systems (if any) for treatment of the water to meet relevant standards. (That is, if the packed bed air stripper, trickling filter and grit chamber don’t treat everything, what is left and what could be used to treat the residual contaminants).

Report information

Remember that you are writing a project proposal for the community. Generally, these are intelligent people and understand scientific principals, but not are all scientifically trained. You should have the following sections in the report:

Executive Summary

Introduction (This is where you introduce the problems/opportunities)

Methodology / Background (Background of the system and how it is designed)

Results (Designs)

Discussion / Recommendations (Justified)

Conclusion (Tying in the problem and the recommendations)

Appendices (Supplementary material, including any calculations, in a format that makes sense and isn’t just a bunch of equations and numbers).

The mark weighting will be 50% on the calculations and 50% on the report writing. Only the first three pages of the report body will be read and marked. The same rubric as for Assignment 1 will be applied to Assignment 2.