3. Consider the design of a wastewater treatment plant (WWTP) for a community with thefollowing design data:TABLE 1: Design DataDesign data Flow-0.150m³. s-¹Influent suspended solids-280mg L-¹Influent BODs = 500mg L-¹-1Sludge concentration= 6.0%Efficiency= 60%Effective length= 40.0 mWidth = 10.0 mLiquid depth = 2.0 mWeir length= 75.0 mTable 2: Acceptability CriteriaParameterDetention time (hours)Overflow rate (m- day)Weir loading (m³-day m¹')Acceptable range1.5-2.580-120<250(c) Assume that the primary sedimentation process in this treatment facility removes 60%of the suspended solids (SS) and 40% of the BODs of the raw sewage. Determine theSS and BOD5 concentrations in the primary sedimentation effluent flow.

Assume that the primary sedimentation process in this treatment facility removes 60% of the suspended solids (SS) and 40% of the BODs of the raw sewage. Determine the SS and BODs concentrations in the primary sedimentation effluent flow.

Assume that the primary sedimentation process in this treatment facility removes 60% of the suspended solids (SS) and 40% of the BODs of the raw sewage. Determine the SS and BODs concentrations in the primary sedimentation effluent flow.

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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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

3. Consider the design of a wastewater treatment plant (WWTP) for a community with the
following design data:
TABLE 1: Design Data
Design data Flow-0.150m³. s-¹
Influent suspended solids-280mg L-¹
Influent BODs = 500mg L-¹
-1
Sludge concentration= 6.0%
Efficiency= 60%
Effective length= 40.0 m
Width = 10.0 m
Liquid depth = 2.0 m
Weir length= 75.0 m
Table 2: Acceptability Criteria
Parameter
Detention time (hours)
Overflow rate (m- day)
Weir loading (m³-day m¹')
Acceptable range
1.5-2.5
80-120
<250
(c) Assume that the primary sedimentation process in this treatment facility removes 60%
of the suspended solids (SS) and 40% of the BODs of the raw sewage. Determine the
SS and BOD5 concentrations in the primary sedimentation effluent flow.

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3. Consider the design of a wastewater treatment plant (WWTP) for a community with the following design data: TABLE 1: Design Data Design data Flow-0.150m³. s-¹ Influent suspended solids=280mg L-¹ Influent BODs = 500mg L-¹ Sludge concentration=6.0% Efficiency= 60% Effective length= 40.0 m Width 10.0 m Liquid depth = 2.0 m Weir length= 75.0 m Table 2: Acceptability Criteria Parameter Detention time (hours) Overflow rate (m- day Weir loading (m³-day"¹ m²') Acceptable range 1.5-2.5 80-120 <250 (a) Using a clearly annotated diagram, describe the major processes in a tertiary level wastewater treatment plant.
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