ELEMENTARY SURVEYING (LOOSELEAF)
15th Edition
ISBN: 9780134604701
Author: GHILANI
Publisher: PEARSON
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Chapter 21, Problem 21.24P
To determine
The metes-and-bound description for the parcel shown in the accompanying figure.
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Q3
Design a secondary clarifier for an activated sludge process with a recycle
rate of 25 percent, a MLSS conc. 2500 mg/L, peak flow 9,000 m²/day,
depth of tank 3 m and solid loading rate = 4 kg/m²/hr
A- Design grit removal chamber for a W.W.P with hourly flow equal 5000
m'h
410 mark
05
An average operating data for conventional activated sludge treatment
plant is as follows:
(1) Wastewater flow, Q-50000m/d
(2) Volume of aeration tank, V-12000m
(3) Influent BOD, Y.- 300 mg/1
(4) Effluent BOD, YE - 25 mg/1
(5) Mixed liquor suspended solids (MLSS), X₁ = 2500mg/1
(6) Effluent suspended solids, Xg30mg/1
(7) Waste sludge suspended solids, X-9700mg/1
(8) Quantity of waste sludge, Q., -220m³/d
Based on the information above data, determine:
(a) Aeration period (hrs.)
(b) Food to microorganism ratio (F/M) (kg BOD per day/kg MLSS)
(c) Percentage efficiency of BOD removal
(d) Sludge age (days)
Chapter 21 Solutions
ELEMENTARY SURVEYING (LOOSELEAF)
Ch. 21 - Prob. 21.1PCh. 21 - Prob. 21.2PCh. 21 - Prob. 21.4PCh. 21 - Prob. 21.6PCh. 21 - Prob. 21.7PCh. 21 - Prob. 21.8PCh. 21 - Prob. 21.9PCh. 21 - Prob. 21.10PCh. 21 - Prob. 21.11PCh. 21 - Prob. 21.12P
Ch. 21 - Prob. 21.13PCh. 21 - Prob. 21.14PCh. 21 - Prob. 21.15PCh. 21 - Prob. 21.16PCh. 21 - Prob. 21.17PCh. 21 - Prob. 21.18PCh. 21 - Prob. 21.19PCh. 21 - Prob. 21.20PCh. 21 - Prob. 21.21PCh. 21 - Prob. 21.22PCh. 21 - Prob. 21.23PCh. 21 - Prob. 21.24PCh. 21 - Prob. 21.26PCh. 21 - Prob. 21.28PCh. 21 - Prob. 21.29PCh. 21 - Prob. 21.30PCh. 21 - Prob. 21.31PCh. 21 - Prob. 21.32P
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