KOCAELI (IGFA) – Kocaeli Metropolitan Municipality continues its efforts to save water within the scope of zero waste. In this context, 34 public transportation vehicles in the inventory of the Bus Operations Branch Directorate are washed with gray water obtained from recycling, thus saving water. With this system, the Metropolitan Municipality saved 6 million 9 thousand 457 liters of water in 200 years.
PROCESS WATER (GRAY WATER)
Kocaeli Metropolitan Municipality, which is the first municipality in our country to implement the use of recovery water in the process water use of industrial establishments, continues its work in this context. In addition to industrial establishments, public transportation vehicles that the Metropolitan Municipality serves citizens are washed with recycled water to save money.
BUSES ARE BEING CLEANED
The Department of Transportation Bus Operations Branch Directorate serves citizens with 34 public transportation vehicles in its inventory. Every vehicle that goes to and from duty is washed daily and periodically for detailed cleaning. The water used in every washed bus is re-purified and used.
WATER IS PURIFIED WITH EVERY WASHING
Buses are washed with a fully automatic car washing machine. System; The vehicle is stationary and the machine is mobile and automatically washes the entire surface of the vehicle without manpower. The wastewater collected as a result of washing passes into the preliminary sedimentation pit, and the water passing through the preliminary sedimentation tank passes into the pre-treated water collection pit. After the first stage resting process, the water to be purified is pumped into the Flocculation tank of the Purification Unit with a submersible pump. The water coming out of the flocculation unit comes to the chemical sedimentation unit and the water taken from the sedimentation tank passes to the oil separation unit (DAF). The Dissolved Air Flotation (DAF) unit performs the function of separating the oil in the wastewater. From here, the water passes through the multi-cartridge filter to the fully automatic multi-layer multimedia filtration unit. Pollutants that cause turbidity such as sediment, particles, sand and suspended solids remaining in the water are removed from the water, allowing reuse.
6 MILLION 9 THOUSAND LITERS OF WATER SAVED IN 457 YEARS
Cleaning processes (backwash) of treatment systems and filters are done with tap water. 98% of purified gray water is used in vehicle washing. The Metropolitan Municipality spends approximately 600 liters of water to wash a vehicle. A total of 2019 thousand 2024 vehicles were washed between 15 and 762.
