1.2.2.1.3.2.1.Free culture (Activated sludge)………………………………………….24
1.2.2.1.3.2.2.Fixed culture ………………………………………………………...……25
1.2.2.1.4.Microalgae treatment process…………………….…………………………………...27
1.2.2.1.4.1.Challenges associated with wastewater treatment using microalgae ………….28
1.2.2.1.4.2.Mechanism of treating wastewater………………………………………………30
1.2.2.1.4.3. Symbiotic Relationship…………………………………………………………..32
1.2.2.1.4.4. Importance of microalgae in wastewater treatment ……………..…………....32
1.2.2.1.5.Tertiary treatment ……………………….……………………………………..…….33
1.2.2.1.6.Sludge treatment ……………………………………………………………………..34
1.3.Methodology of work ……………………………………………………………………………35
Chapter 2: Methodology
1. Presentation of the study area .................................................................................................... 39
2. Geographical location of the plant siting area............................................................................ 40
3. Site characteristics ...................................................................................................................... 41
3.1. Climate situation .................................................................................................................. 41
3.1.1. Precipitation................................................................................................................... 41
3.1.2. Temperature .................................................................................................................. 42
3.1.3. Wind ............................................................................................................................... 43
3.1.4. Humidity ........................................................................................................................ 43
4. Population activities .................................................................................................................... 44
5. Hydraulic situation ..................................................................................................................... 44
5.1. Drinking water supply.......................................................................................................... 44
5.2. Sanitation .............................................................................................................................. 45
6. Sizing the treatment plant ........................................................................................................... 45
6.1. Estimated population connected to the planned sewerage network ................................... 45
6.2 Estimating the municipaliti’s drinking water requirements ................................................ 46
6.3. Estimated wastewater flows for the 2050 horizon ............................................................... 46
6.3.1 Estimated domestic wastewater flows ............................................................................ 46
6.3.2. Estimating equipment wastewater flows ....................................................................... 47
6.3.3. Estimated total wastewater flows .................................................................................. 47
6.4. Calculation of hydraulic and pollutant loads ...................................................................... 48
6.4.1. Calculation of hydraulic loads ....................................................................................... 48
6.4. 2.Calculation of pollutant loads ....................................................................................... 50
6.5. Sizing of wastewater treatment plant structures ................................................................. 53
6.5.1. Pre-treatment ................................................................................................................. 53
6.5.2. Secondary treatment (biological treatment) ................................................................. 58
1.2.2.1.3.2.2.Fixed culture ………………………………………………………...……25
1.2.2.1.4.Microalgae treatment process…………………….…………………………………...27
1.2.2.1.4.1.Challenges associated with wastewater treatment using microalgae ………….28
1.2.2.1.4.2.Mechanism of treating wastewater………………………………………………30
1.2.2.1.4.3. Symbiotic Relationship…………………………………………………………..32
1.2.2.1.4.4. Importance of microalgae in wastewater treatment ……………..…………....32
1.2.2.1.5.Tertiary treatment ……………………….……………………………………..…….33
1.2.2.1.6.Sludge treatment ……………………………………………………………………..34
1.3.Methodology of work ……………………………………………………………………………35
Chapter 2: Methodology
1. Presentation of the study area .................................................................................................... 39
2. Geographical location of the plant siting area............................................................................ 40
3. Site characteristics ...................................................................................................................... 41
3.1. Climate situation .................................................................................................................. 41
3.1.1. Precipitation................................................................................................................... 41
3.1.2. Temperature .................................................................................................................. 42
3.1.3. Wind ............................................................................................................................... 43
3.1.4. Humidity ........................................................................................................................ 43
4. Population activities .................................................................................................................... 44
5. Hydraulic situation ..................................................................................................................... 44
5.1. Drinking water supply.......................................................................................................... 44
5.2. Sanitation .............................................................................................................................. 45
6. Sizing the treatment plant ........................................................................................................... 45
6.1. Estimated population connected to the planned sewerage network ................................... 45
6.2 Estimating the municipaliti’s drinking water requirements ................................................ 46
6.3. Estimated wastewater flows for the 2050 horizon ............................................................... 46
6.3.1 Estimated domestic wastewater flows ............................................................................ 46
6.3.2. Estimating equipment wastewater flows ....................................................................... 47
6.3.3. Estimated total wastewater flows .................................................................................. 47
6.4. Calculation of hydraulic and pollutant loads ...................................................................... 48
6.4.1. Calculation of hydraulic loads ....................................................................................... 48
6.4. 2.Calculation of pollutant loads ....................................................................................... 50
6.5. Sizing of wastewater treatment plant structures ................................................................. 53
6.5.1. Pre-treatment ................................................................................................................. 53
6.5.2. Secondary treatment (biological treatment) ................................................................. 58