Water treatment by aeration - sulfur spring

Illustrate the species distribution for the elements aluminium, iron(II) and iron(III). Then, model a water treatment in terms of an open aeration with atmospheric oxygen (oxidation ). What happens to the Al- and Fe species Which mineral phases will presumably precipitate during the aeration  

Vary the partial pressure of oxygen. What is remarkable  

Is the pH value after the aeration still within the limits required for potable water  

To set up the dimensions of a water treatment plant correctly, it is important to know the amount of sludge that will form every day as the result of the precipitation of mineral phases. Enforce the precipitation of the mineral phases that are most likely to precipitate during aeration in your model and calculate the accumulating amount of sludge per day assuming a production rate of 30 L/s in the future water treatment plant. Do not forget that sludge does not only consist of the precipitated mineral phases but mainly of water (60-90 %). 

Evaluate your model with regard to the elements N and S. What will the results rather look like in reality and why  

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