Methodology
47
It should be remembered that the water supply for the municipality of Taoura is 150
l/inhab/d and the average daily wastewater flow is given by the following formula:
í µí° í µí°í µí°.í µí°.í µí°°í µí°° = C×Kr
With :
í µí° í µí°í µí°.í µí°.í µí°°í µí°° : Average daily flow rate of domestic wastewater,
Kr: Discharge coefficient taken as 80% of the quantity of consumed drinking water
C: Average daily consumption (C=P×D), (m
3 /d).
From which: D: daily supply (l/inhab/d).
P: number of inhabitants.
Estimates of wastewater flows discharged by the municipality studied at different horizons are
summarized in Table 17 (Chapter 3).
6.3.2. Estimating equipment wastewater flows
According to the Souk-Ahras state's water resources department, wastewater flows from
equipment have been estimated at around 15% of the average daily flow of domestic
wastewater, and they are calculated using the following formula:
í µí° í µí°í µí°ª.í µí°°í µí°° = 0,15 × í µí° í µí°í µí°¨í µí°¦.í µí°°í µí°°
With :
í µí° í µí°í µí°ª.í µí°°í µí°° : Equipment wastewater flow.
í µí° í µí°í µí°¨í µí°¦.í µí°°í µí°° : Domestic wastewater flow.
6.3.3. Estimated total wastewater flows
We have:
í µí±¸ í µí±».í µí²í µí² = í µí° í µí°í µí°ª.í µí°°í µí°° + í µí° í µí°í µí°¨í µí°¦.í µí°°í µí°°
With :
í µí±¸ í µí±».í µí²í µí² : The total wastewater flow.
í µí° í µí°í µí°ª.í µí°°í µí°° : The flow of equipment wastewater.
í µí° í µí°í µí°¨í µí°¦.í µí°°í µí°° : The flow of domestic wastewater.
47
It should be remembered that the water supply for the municipality of Taoura is 150
l/inhab/d and the average daily wastewater flow is given by the following formula:
í µí° í µí°í µí°.í µí°.í µí°°í µí°° = C×Kr
With :
í µí° í µí°í µí°.í µí°.í µí°°í µí°° : Average daily flow rate of domestic wastewater,
Kr: Discharge coefficient taken as 80% of the quantity of consumed drinking water
C: Average daily consumption (C=P×D), (m
3 /d).
From which: D: daily supply (l/inhab/d).
P: number of inhabitants.
Estimates of wastewater flows discharged by the municipality studied at different horizons are
summarized in Table 17 (Chapter 3).
6.3.2. Estimating equipment wastewater flows
According to the Souk-Ahras state's water resources department, wastewater flows from
equipment have been estimated at around 15% of the average daily flow of domestic
wastewater, and they are calculated using the following formula:
í µí° í µí°í µí°ª.í µí°°í µí°° = 0,15 × í µí° í µí°í µí°¨í µí°¦.í µí°°í µí°°
With :
í µí° í µí°í µí°ª.í µí°°í µí°° : Equipment wastewater flow.
í µí° í µí°í µí°¨í µí°¦.í µí°°í µí°° : Domestic wastewater flow.
6.3.3. Estimated total wastewater flows
We have:
í µí±¸ í µí±».í µí²í µí² = í µí° í µí°í µí°ª.í µí°°í µí°° + í µí° í µí°í µí°¨í µí°¦.í µí°°í µí°°
With :
í µí±¸ í µí±».í µí²í µí² : The total wastewater flow.
í µí° í µí°í µí°ª.í µí°°í µí°° : The flow of equipment wastewater.
í µí° í µí°í µí°¨í µí°¦.í µí°°í µí°° : The flow of domestic wastewater.