Wastewater Treatment Plants
DESCRIPTION OF WORKS:
Within the frame of the feasibility studies previously prepared by Employer (GAP), using of active sludge method with extended aeration was planned as the treatment process in the Akçakale (Şanlıurfa) Wastewater Treatment Plant Project. However, as a result of the comparisons made and considering the climate of the region, the wastewater system was designed by changing with facultative stabilization ponds to establish a treatment plant to be operated with the existing staff of Akçakale Municipality and with minimum power, operation and maintenance costs.
For the treatment plants, 1 aerated facultative pond (8 mechanical surface aerators) running serially and 1 stabilization pond were planned initially for year 2007 (1st Stage). For year 2027 (2nd Stage), 2 aerated ponds, each one being 1 ha wide, and total 15 ha wide stabilization ponds running serially were dimensioned. But, as a result of the optimization calculations carried out in terms of initial investment and operation costs, staging of the system was modified. In consequence, 1 ha wide 1 facultative aerated (16 No. mechanical surface aerators) pond and 2 total 5.50 ha wide stabilization ponds were calculated until 2027 (2nd Stage) and designed. 2nd Stage extension of the plant was planned as a similar construction of entire first stage. The selected system provides a significant cost saving and operational ease in comparison with the existing project designed in the active sludge method with extended aeration.
CONSULTANCY SERVICES:
In the project scope, architectural, structural,reinforced concrete, mechanical and electrical implementation design of plant units such as the treatment plant inlet structure, fine screens and parshall flume, screw pumping station, aeration tanks, flow distribution structure, final settlement ponds, outlet structure, return and sludge pumping station, sludge drying beds and release pumping station.
CLIENT:
İsmail KOÇ (The Contractor of Republic of Turkey, Prime Ministry, Southeast Anotolia Project, Head of Regional Development Administration)
DATE: 1993 – 1994
PROJECT COST: 12,000,000 USD
