The purpose of the wastewater treatment plant project is to implement and achieve the goals set in the water management bases of the Republika Srpska and the Federation of BiH, which identified the necessary sectoral investments and the development of the institutional capacity needed to meet the requirements of the European directives. By implementing the projects of the wastewater treatment plant, settlements of up to 15,000 equivalent inhabitants (EBS) will meet European standards in urban wastewater treatment in order to protect the environment from harmful consequences of the discharge of municipal wastewater. The paper proposes a central sewage treatment plant that includes several treatments: mechanical, biological, chemical and sludge treatment. The paper presents the norms and standards used for the design of the purification process, as well as the basic input parameters during the calculation, which are used to dimension the necessary equipment.
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