EBK ELEMENTARY SURVEYING
15th Edition
ISBN: 8220106714225
Author: GHILANI
Publisher: PEARSON
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Chapter 19, Problem 19.9P
To determine
The radii in the meridian and prime vertical for a station with latitude
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An average operating data for conventional activated sludge treatment
plant is as follows:
(1) Wastewater flow, Q = 50000m³/d
A- Design grit removal chamber for a W.W.P with hourly flow equal 5000
m'h
B-Answer five of the following:
1-....... is the storm runoff that occurs from rainfall?
(15 mark)
(10 mark)
2- A protective device used to remove large and coarse
materials from the wastewater
3-....... utilize a relative porous bacteria growth medium such as rock
or formed plastic shapes
4- There are two basic methods of introducing air into the aeration
tanks are....... And .........
5-..... to water bodies such as rivers will be described by Streeter-
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6- .... is the liquid conveyed by a sewer, it may consist of any one or
a mixture of liquid wastes.
(2) Volume of aeration tank, V-12000m
(3) Influent BOD, Y.- 300 mg/1
(4) Effluent BOD, Y, 25 mg/1
(5) Mixed liquor suspended solids (MLSS), X,-2500mg/1
(6) Effluent suspended solids, X-30mg/1
(7) Waste sludge suspended solids, XR-9700mg/1
(8) Quantity of waste sludge, Q., 220m³/d
100
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 19 Solutions
EBK ELEMENTARY SURVEYING
Ch. 19 - Prob. 19.1PCh. 19 - Prob. 19.2PCh. 19 - Prob. 19.3PCh. 19 - Prob. 19.4PCh. 19 - Prob. 19.5PCh. 19 - Prob. 19.6PCh. 19 - Prob. 19.7PCh. 19 - Prob. 19.8PCh. 19 - Prob. 19.9PCh. 19 - Prob. 19.10P
Ch. 19 - Prob. 19.11PCh. 19 - Prob. 19.12PCh. 19 - Prob. 19.13PCh. 19 - Prob. 19.14PCh. 19 - Prob. 19.15PCh. 19 - Prob. 19.16PCh. 19 - Prob. 19.17PCh. 19 - Prob. 19.18PCh. 19 - Prob. 19.19PCh. 19 - Prob. 19.20PCh. 19 - Prob. 19.21PCh. 19 - Prob. 19.22PCh. 19 - Prob. 19.23PCh. 19 - Prob. 19.24PCh. 19 - Prob. 19.25PCh. 19 - Prob. 19.26PCh. 19 - Prob. 19.27PCh. 19 - Prob. 19.28PCh. 19 - Prob. 19.29PCh. 19 - Prob. 19.30PCh. 19 - Prob. 19.31PCh. 19 - Prob. 19.32PCh. 19 - Prob. 19.33PCh. 19 - Prob. 19.34PCh. 19 - Prob. 19.35PCh. 19 - Prob. 19.36PCh. 19 - Prob. 19.37PCh. 19 - Prob. 19.38PCh. 19 - Prob. 19.39PCh. 19 - Prob. 19.40PCh. 19 - Prob. 19.41P
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