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## 2.4 Wastewater Temperature 

The wastewater treatment plant shall be designed for a minimum temperature in the process tanks of 12$^{o}$C. The oxygen demand calculations shall be designed for a maximum temperature of 25$^{o}$C in the biological reactors. 

## 2.5 Effluent Quality and Control 

## 2.5.1 Treated Effluent Quality 

The wastewater treatment plant shall be designed and constructed to comply with the discharge effluent criteria set out in EU Urban Wastewater Treatment Directive (91/271/EEC), Turkish Water Pollution Control Regulation 1 Urban Wastewater Treatment Regulation 2 and Regulation on Identifying Sensitive Water Bodies and Areas Affecting These Bodies and Improving Water Quality$^{3}$. 

The following treated wastewater quality standards are to be met: 

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Note 1. All discharge criteria except total coliform bacteria shall be fulfilled before the filtration. 2. TSS concentration shall be 35 mg/l at the outlet of final clarifiers and 5 mg/l at the outlet of filtration and UV disinfection unit 

