1Assignment Guidelines1. Consult the Australian Drinking Water Guidelines and determine what removalsare to be achieved. (15%)• Length: 3-4 pages recommended• Explanation/justification should be given to “What to be/not to be removed”, “Why itis to be/not to be removed” and “How it is removed”. Consider using a table format• Consult other guidelines (e.g., USEPA and/or WHO) if a certain water quality data isnot available in the ADWG.2. Outline the major processes which are part of the conventional water treatmentplant and describe the function(s) of each process in your own words. (15%).• Length: 3-4 pages recommended• Brief descriptions of seven major unit processes in a conventional water treatmentplant including main functions, design consideration, mechanisms (if applicable) andtypes (if applicable).3. Design a conventional water treatment plant which includes the plant layout,design criteria and details of sizing of all the basic unit operations, chemical usage andhead loss through each unit process. (50%)• Length: 15-16 pages. It is recommended to present a table which summarizes all thecritical design parameters upfront for each unit. Detailed calculation can be placed inthe appendix (which is not part of the 30-page limit).• All design must be verified with recommended design criteria• Plant layout: using software or hand drawing• Intake system (type, design consideration) and screen design (coarse + fine + headlosscalculation)• Coagulation: Sizing of the basin, mixer type, amount of coagulation required, alkaliaddition (if required), energy consumption, etc.• Flocculation: Sizing, type, impellers, diffuser walls, headloss, etc.• Clarification: Sizing, brief description of inlet, outlet, sludge collection, etc.• Filtration: Filter sizing (including no. of filters, filtration rate), filter media, headloss,brief description of filter backwash, recovery rate and effective filtration rate, etc.• Disinfection: Sizing, disinfectant concentration, storage and handing, etc.• Sludge management: It is recommended to use lagoons for sludge storage anddewatering prior to landfill – Sizing, total land required, etc.• Hydraulic profile (in-plant): through each treatment unit and overall.24. Assess the environmental impact of each unit and identify the unit(s) of highestenvironmental concern. (5%)• Length: 1-2 pages.• Make your own judgement of the environmental impact of each unit.• Identify unit(s) of highest concern and justify your answers.5. Carry out a literature survey to identify alternative treatment processes whichcan be used to modify the treatment plant to remove more contaminants. (15%)• Length: 3-4 pages• Discussion of at least 4 alternative treatment processes is required with reference torecent literature research papers.
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