2 of 74  Construction of Giresun Wastewater Treatment Plant  Tender Dossier Volume 3 Employer’s Requirements  Section 3: Plant Description  3.3.4.7 Primary Clarifiers............................................................................................................. 20 3.3.4.8 Distribution Chamber for Anaerobic Bio-phosphorus Tanks .......................................... 21 3.3.4.9 Anaerobic Bio-phosphorus Tanks.................................................................................... 21 3.3.4.10 Chemical Phosphorous Precipitation ............................................................................... 22 3.3.4.11 Distribution Chamber for Activated Sludge Tanks.......................................................... 23 3.3.4.12 Activated Sludge Tanks ................................................................................................... 24 3.3.4.13 Methanol storage and dosing system ............................................................................... 25 3.3.4.14 Distribution Chamber for Secondary Clarifiers ............................................................... 26 3.3.4.15 Secondary Clarifiers......................................................................................................... 27 3.3.4.16 UV Disinfection System and Microfiltration................................................................... 27 3.3.4.17 Treated effluent discharge main and outfall structure...................................................... 28 3.3.4.18 Blowers for Aeration........................................................................................................ 29 3.3.4.19 Primary Sludge Pumping Station..................................................................................... 30 3.3.4.20 Return and Excess Sludge Pumping Station .................................................................... 30 3.3.4.21 Flow Measurement........................................................................................................... 32 3.3.4.22 Treated wastewater for reuse ........................................................................................... 33 3.3.4.23 Potable water system........................................................................................................ 33 3.3.4.24 Mechanical Thickeners for Excess Sludge ...................................................................... 34 3.3.4.25 Gravity Sludge Thickener for Primary Sludge ................................................................ 35 3.3.4.26 Anaerobic sludge digester................................................................................................ 36 3.3.4.27 Digested Sludge Storage Tank......................................................................................... 39 3.3.4.28 Digested Sludge Feeding Pump for Dewatering Facilities .............................................. 39 3.3.4.29 Gas holding tank and combined biogas heating and energy plant (CHP)........................ 39 3.3.4.30 Dewatering building......................................................................................................... 40 3.3.4.31 Sludge Drying Units ........................................................................................................ 42 3.3.4.32 Sludge Cake Storage ........................................................................................................ 42 3.3.4.33 Supernatant Pumping Station........................................................................................... 42 3.3.4.34 Odour Removal Unit (Bio-Filter) .................................................................................... 43 3.3.4.35 Drainage of the Units ....................................................................................................... 45 3.3.4.36 Valve Chambers, Pumping Stations and Pipe galleries ................................................... 46 3.3.5 SCADA system................................................................................................................ 48 3_Vol3_d4.3_Section 3_Plant Description_GIR_rev08 