A complete mix suspended-growth reactor, without a clarifier and recycle, is used to treat a wastewater flow containing only soluble organic substances. The influent BOD is 200 mg/L and the effluent COD is 450 mg/L. If the effluent dissolved BOD concentration is 2 mg/L, and the effluent volatile suspended solids concentration is 100 mg/L, determine: a. The observed yield in terms of g VSS/g BOD; g VSS/g COD; and g TSS/g BOD, b. he effluent sCOD from nonbiodegradable COD (nbsCOD) and biodegradable COD (bsCOD) using BOD and COD information provided: and c. The fraction of the influent BOD that is oxidized to CO2 and H2O.

i believe the answer is a.

elements make up everything, and they combine to make compounds.

the answer is c

nacl or sodium chloride is an ionic compound. this is because an ionic compound pertains to a compound that consists of positively and negatively charged ions. in this case, na (sodium) has a tendency to lose one electron when it reacts with with other atoms, so the resulting sodium ion contains 11 protons and 10 electrons, thus making it positively charged (na+), when chlorine reacts, it usually gains one electron to form an ion called chloride, thus making it negatively charged ( since the ions are oppositely charged, they attract.