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The calculation of the headloss through the system is important because the headloss through the rapid mix tube system partially determines the change in height of the water in the entrance tank when the plant flow changes. The nonlinear chemical doser is designed to change the flow rate of alum with the flow rate of the plant, and it is thus very important to calculate the headlosses through the rapid mix tube system and the sections of the plant following it in order to correctly design the chemical doser to maintain a constant concentration of alum in the raw water source despite changing flow rates.
(I would expand this section and include a graph of the relationship between head loss and plant flow rate.)
Future Work
Work throughout the rest of the fall 2009 semester will focus on finalizing the Agalteca plant rapid mix tube design. The rapid mix subteam will also build a full-scale model of the system in order to test the feasibility of the system as well as create a prototype tube on which to base future improvements to the tube. Experiments will also be carried out to test the flow of water through the system as well as the effectiveness of the orifices in creating rapid mix of chemical introduced to the water source flowing through the tube system.
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