1) The following test results were obtained for primary influent to the UCD wast

Question

1) The following test results were obtained for primary influent to the UCD wastewater treatment plant. Determine the concentration of (a)total solids, (b) total volatile solids, (c) suspended solids, (d) volatile suspended solids and (e) total dissolved solids. Based on this analysis, are the solids in the wastewater primarily organic or inorganic? What can you say about the size of the solids in this wastewater? Total solids test (20 ml sample Tare mass of sample pan = 0.99187 g Pan plus residue after evaporation at 105 °C = 1.00549 g Pan plus residue after ignition at 550 °C 1.00186 g Filtered solids fest(50 ml sample Tare mass of Whatman GF/C filter-1.05501 g Residue and filter after drying at 105 °C-1.06171 g Residue and filter after ignition at 550°C = 1.05626 g

Explanation / Answer

1) The following test results were obtained for primary influent to the UCD wast

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