You are given a task to design a water treatment plant for treating 30 000 m³/d water from screening up to the flocculation stage. This design cannot be resolved without in-depth engineering knowledge, particularly knowledge that supports engineering design in a practice area. Information needed for each stage as tabulated in Table 1 Table 1: Information for each stage Stage Information one steel bar coarse screen Screening Aeration cascade aerator, moderately polluted, stepped weir, ratio of oxygen deficit 2.26 Coagulation two square basins, depth is 3/4 the width, 30 seconds detention time, temperature 10 °C L:W:D is 1:4:2, temperature 15 °C Flocculation

You are given a task to design a water treatment plant for treating 30 000 m³/d water from screening up to the flocculation stage. This design cannot be resolved without in-depth engineering knowledge, particularly knowledge that supports engineering design in a practice area. Information needed for each stage as tabulated in Table 1 Table 1: Information for each stage Stage Information one steel bar coarse screen Screening Aeration cascade aerator, moderately polluted, stepped weir, ratio of oxygen deficit 2.26 Coagulation two square basins, depth is 3/4 the width, 30 seconds detention time, temperature 10 °C L:W:D is 1:4:2, temperature 15 °C Flocculation

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

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Storm Sewers and Detention

The storm drains system transports rainwater or stormwater and other runoff from roads, parking lots, and roof downpipes directly to nearby creeks, rivers, or the sea without any treatment.

Question

You are given a task to design a water treatment plant for treating 30 000 m³/d water from screening up
to the flocculation stage. This design cannot be resolved without in-depth engineering knowledge,
particularly knowledge that supports engineering design in a practice area. Information needed for each
stage as tabulated in Table 1
Table 1: Information for each stage
Stage
Information
one steel bar coarse screen
Screening
Aeration
cascade aerator, moderately polluted, stepped
weir, ratio of oxygen deficit 2.26
Coagulation
two square basins, depth is 3/4 the width, 30
seconds detention time, temperature 10 ºC
L:W:D is 1:4:2, temperature 15 °C
Flocculation

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