12,960 m3 /d Water Treatment Plant in Kikinda
Contract signed for Turnkey Drinking Water Treatment Plant in Kikinda, Serbia
27.07.2021
UNIHA is pleased to announce the signing of a design and build contract for the Drinking Water Treatment plant in Kikinda, Serbia. The project for the plant with a capacity of 12,960 m³/day will be executed by the Consortium “UNIHA-SET-JEDINSTVO”. The client for the project is the local public utility company “PUC Kikinda”. The project value of EUR 8,889,500.00 will be financed two thirds by KfW under its “Water and Sewerage Programme in Medium-Sized Municipalities in Serbia – Programme V, Phase 2” scheme and one third by the Republic of Serbia through its Ministry of Construction, Transport and Infrastructure.
Kikinda is a town and municipality located in the autonomous province of Vojvodina, in the North Banat District of Serbia. The Kikinda water treatment plant constitutes a highly prestigious venture for the region and has been thoroughly planned to receive water from the Sumovice well field to produce 150 l/s drinking water according to the Serbian drinking water standard.
Aeration-coagulation/flocculation-sedimentation
The raw water from the well field is fed to the inlet chamber and split into two parallel aeration-coagulation/flocculationsedimentation streams. The water flows through the section by gravity. By aeration, the oxygen concentration in the water is increased in order to partially convert arsenite to arsenate. In parallel, methane and hydrogen sulphite are stripped from the raw water
Media filtration
The sedimentation supernatant is pumped to the pressurized media filters for Ammonia and Suspended Solids removal.
Reverse Osmosis (RO)
The filtrate is pumped towards RO for Boron and Sodium removal.
Clear water section
The plant is designed for several production modes. The product is collected in the clear water tanks. From there, it is pumped to the network towards consumers.
Sludge handling
Excess sludge from the sedimentation sludge buffer and sludge from the backwash sludge buffer is pumped to the sludge thickener. The thickened sludge is dewatered for final disposal.
This project is characterized by the complex raw water chemistry (Arsenic, Ammonia, Sodium, Boron). Based on their global experience in treating very different as well as difficult raw water, UNIHA was able to convince the client and to win this prestigious tender by presenting the solution with the lowest investment and operating cost.