Using the knowledge on biological wastewater treatment , what conclusion would you derive from the data given at the end? Parameter Unit TAI-I-11 1007 TAI-E-11 1007 AIR-I-11 1007 AIR-E-11 1007 CB-I-11 1007 CB-E-11 1007 COL-I-11 1006 COL-E-11 1006 MAC-I-11 1006 MAC-E-11 1006 SS mg/L 204 28 40 16 36 26 196 132 132 122 COD 503 83 256 149 156 63 437 234 459 269 BOD5 266 28.0 102 52.8 72 14.6 232 89.2 168 55.2 NH3-N 23.6 14.8 30.7 18.3 14.2 0.5 20.1 4.0 21.3 18.5 TP 6.4 3.2 10.9 7.6 3.0 1.9 4.2 2.4 4.6 4.5 TN 43 29 45 30 19 10 29 15 27 25 Fecal Coliforms (FC) MPN/ 100 mL 1.4x104 8x102 2x103 1.7x103 3.4x104 8 4x103 23 1.7x104 9x103 Color Unit Pt/Co 191 45 283 187 154 26 108 37 138 57 pH   7.34 7.59 7.62 7.64 7.15 7.79 7.03 7.46 7.35 7.32 Note that TAI, AIR, CB, COL, and MAC stand for Taipa, Airport, Cross Border, Coloane, and Macau wastewater treatment plant (WWTP), respectively, and I and E for influent and effluent, respectively. In your answer, include at least the followings. (1) Comparison with current effluent discharge limits in Macau and in other regions/countries for domestic/municipal/city/household wastewater. (2) Each WWTP’s effectiveness for organics and nutrients removal. (3) For plants not removing/treating some parameters well, explain/discuss why.

LAB SECTION I WAS PRESENT AND PERFORMED THIS EXERCISE (INITIALS) The Lethal Effect of Ultraviolet Radiation on Microbial Growth OBSERVATIONS AND INTERPRETATIONS Enter your class data below. Score the relative amount of growth on each plate. Use the numbers 0, 1, 2, or 3 (0 is no growth; 3 is abundant growth). Organism B. subtilis 5 seconds Imin 5+ 1 3 minutes 10 minutes 10 seconds 5+ 3min 30 seconds 5min 4+ minute 10min S. aureus 5 + 3 + 4 니- + 2 1 Micrococcus 1 10 sec 4 M 31m 10min 3'ın Questions of this exercise is to demonstrate the comparative effect of UV on two bacterial populations. The purpose This could have been accomplished without the cardboard cover. Why was the cover used? control site 1 Expe SECTION TWO MICROBIAL GROWTH DATA SHEET 2-1

HonorSociety org č. * SpiasiLa * Maps New Tab Describe your color observations of the Nitrate test. a. after adding Reagents A, B (and/or znic): cements b. Did the organism reduce nitrate? (yes or no) ments c. Is the final product nitrate, nitrite or ammonia/nitrogen gas? sions ing es Question 13 4 pts y Resources ules Based on your observations of the SIM test: ple a. Did sulfur reduction occur (yes/no)? zes b. Did the organism produce the enzyme tryptophanase (yes/no)? abus m c. Is the organism positive or negative for the motility test?

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