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- Q/ What is the purpose of the "blowoff valve " in the Water distiller instrum ent?Environmental factors that could lead to failure of water treatment plant?An activated sludge system operates at a flow rate (Q) of 400 m³/day (and an HRT of 0.129 day) with an incoming BOD (So) of 300 mg/L. Through pilot plant work, the kinetic constants for this system are determined to be Y = 0.5 kg SS/kg BOD, Ks = 200 mg/L, and 2/day. What mixed liquor concentration is necessary to attain a 95% BOD removal? What will the corresponding MCRT be? =
- when spitum or fluid samples are required, a____is attached to the suction tubing.Draw the letter "e" in a Low Power Objective (LPO), High Powe Objective (HPO), and Oil Immersion Objective. Thank you, keep safe!An activated sludge plant (CSTR w/ recycle) has the following characteristics: Influent substrate concentration, So = 400 mg/L BODL (all soluble); influent VSS, Xyº = 0; effluent 3 substrate concentration, S = 10 mg/L BODL; flow rate, Q = 1000 m³/day; aeration basin 3 volume, V = 200 m³; reactor MLVSS, Xv = 4,280 mg/L; average, steady-state oxygen uptake rate, Oxygen uptake rate (OUR) = 0.3 mg 02/L-min. The biomass viability (i.e., v = Xa/Xv) was measured using the oxygen uptake rate (OUR) technique and found equal to 0.926. An aliquot of mixed liquor was placed in a small reactor, aerated without any exogenous substrate addition (i.e., starvation conditions) and it's OUR was measured over time resulting in the following data: 0 1 2 3 4 5 Time (days) OUR (mg 02/L-min) 0.3 0.274 0.243| 0.222 0.203 0.182 6 8 10 0.165 0.135 0.110 By use of the above data, the microorganism decay coefficient (b, day can be estimated if you assume that a constant relationship exists between Xa and OUR,…
- Compute for the CFU/ml of drinking water. Is this Passed or Failed based on the Philippine National Standards for Drinking Water for Heterotrophic Plate Count (HPC)?%OM pH EC Ca2+ Mg2+ K+ Na+ Al3+ H+ % dS/m cmolc/kg soil cmolc/kg soil cmolc/kg soil cmolc/kg soil cmolc/kg soil cmolc/kg soil 2.7% 7.6 4.5 19 13 10 3 1 4 Is this soil affected? If so, what type? - saline - sodic - not salt affected - saline-sodicWrite down five important characteristics of a good extractionbuffer. Elaborate shortly about each.