ulate the percentage of lead nitrate removed after the electrocoagulation process for all three groups. Hint: Convert ppm to ppb and then calculate. 2. Create a plot of Conductivity vs. Time. Include labels. Do NOT include a linear fit. This is not a linear relationship. 3. Create a plot of Transmittance vs. Time. Include labels. Do NOT include a linear fit. 4. Create a plot of Absorbance vs. Time. Include labels. Do NOT include a linear f

Answer:Drinking water treatment residues (WTR), generated from the lime softening processes, are commonly reused or disposed of in a number of applications; these include use as a soil amendment or a subsurface fill. Recently questions were posed by the Florida regulatory community on whether lime WTR that contained a small percentage of other treatment additives could appropriately be characterized as lime WTR, in terms of its total element content and leachability. A study was done using a broad range of leaching tests, including a framework of tests recently adopted by the United States-Environmental Protection Agency (EPA) and tests that were modified to account for scenario specific conditions, such as the presence of natural organic matter (NOM). The results of these additional leaching tests demonstrated that certain applications, including disposal in a water body with NOM or in placement anaerobic environment, did result in increased leaching of elements such as Fe, and that a site specific assessment should be conducted prior to using WTR in these types of applications. This study illustrates the importance of leaching test selection when attempting to provide an estimation of release in practice.