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Questions and Answers
What is the primary goal of the sewerage network design project for Safi?
What is the primary goal of the sewerage network design project for Safi?
What is the proposed design period for the new sewerage network in Safi?
What is the proposed design period for the new sewerage network in Safi?
How many inhabitants does Safi approximately have?
How many inhabitants does Safi approximately have?
What does the current sanitation system in Safi consist of?
What does the current sanitation system in Safi consist of?
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What geographical challenge is mentioned in the context of Safi?
What geographical challenge is mentioned in the context of Safi?
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How is the population density distributed across Safi's districts?
How is the population density distributed across Safi's districts?
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What has been proposed to address the existing sanitation issues in Safi?
What has been proposed to address the existing sanitation issues in Safi?
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What factor is assumed for estimating future growth in Safi's population?
What factor is assumed for estimating future growth in Safi's population?
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What is the range of the weekly consumption variation relative to the average daily figures?
What is the range of the weekly consumption variation relative to the average daily figures?
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What factors should be considered when calculating the local maximum flow rate at each manhole?
What factors should be considered when calculating the local maximum flow rate at each manhole?
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Which software is recommended for schematizing the sewer network?
Which software is recommended for schematizing the sewer network?
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What types of results should be presented regarding manholes and sewers?
What types of results should be presented regarding manholes and sewers?
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During the hydraulic design, what is expected if phased development is applied?
During the hydraulic design, what is expected if phased development is applied?
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Which district has the highest area in hectares?
Which district has the highest area in hectares?
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What is the annual growth percentage for all districts listed?
What is the annual growth percentage for all districts listed?
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What is the planned domestic consumption per capita, including leakage?
What is the planned domestic consumption per capita, including leakage?
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Which district has the highest population density?
Which district has the highest population density?
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Where is the connection of the factory to the sewer system planned?
Where is the connection of the factory to the sewer system planned?
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Which sewer material has been chosen for the network?
Which sewer material has been chosen for the network?
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What is the projected water demand of the new factory per day?
What is the projected water demand of the new factory per day?
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Which district has the lowest area among the listed ones?
Which district has the lowest area among the listed ones?
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Study Notes
Safi Town Overview
- Safi is a town in a hilly area with elevations ranging from 8 to 28 meters above sea level.
- Safi has a population of 16,170 inhabitants.
- The town is divided into six districts (A-F) with varying population densities.
- The town is expecting rapid expansion due to regional development activities and the construction of a new agricultural machinery factory.
- The existing sanitation system in Safi is in poor condition and relies on soak pits. A new sewerage system is proposed.
- The new sewerage network is designed to last for 30 years.
- PVC piping is selected for the network, taking into account local soil conditions and manufacturing capabilities.
Population Data
- The total surface areas of the districts and sub-districts are summarized in Table A2.1.
- The present population density for each area, expressed as the number of inhabitants per hectare, is shown in Table A2.2.
- The population growth rate is assumed to be constant throughout the design period.
Water Demand
- The water consumption in Safi is mainly domestic, with a projected consumption per capita of 200 liters per day.
- The new factory is estimated to require 1500 m3/d of water.
- The typical diurnal domestic consumption pattern experiences variations within the range of 0.95 and 1.10 of the average daily figures.
- Monthly (seasonal) variations are estimated to be between 90% and 115% of the average consumption.
- The factory operates at a constant (average) capacity throughout the day.
Design Questions
- The sewer network needs to be designed considering the location of the wastewater treatment plant (WWTP).
- The design should incorporate all the necessary criteria covered in the course.
- The results should be presented in the form of tables and figures.
- Sewer profiles should be drawn and exported to AutoCad or Civil 3D.
- The design should include an analysis of the hydraulic performance of the system over the entire design period, considering phased development if applicable.
- Any difficulties encountered during the design process should be explained, along with the solutions adopted.
Project Objectives
- To analyze the hydraulic performance of a sewer network using SewerGEMS software.
- To design the sewer network for Safi, taking into account the town's existing conditions, future growth estimates, and the proposed factory.
- To ensure the network's efficacy and efficiency over its planned 30-year lifespan.
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Description
Test your knowledge on the town of Safi, covering its geographical features, population statistics, and upcoming development projects. Explore aspects such as the proposed sewerage system and population density across different districts. This quiz will challenge your understanding of urban planning and population dynamics in Safi.
