Irrigation Water Quality of Nilüfer Stream and Effects of the Wastewater Discharges of the Treatment Plants
Abstract
In this research, the aim is to determine the irrigation water quality
parameters of Nilüfer stream which is the most important irrigation water
resource of Bursa and also the wastewater discharge point of many water
treatment plants. Water samples were taken at four different periods between
August 2013-May 2014 from the starting point of the five treatment plants that
discharge to Nilüfer stream and from the stream which the treatment plants
discharge to. The pH (7.04 – 9.43), EC (0.36 – 6.75 mS cm-1),
temperature (10.7 – 32.9°C), ammonium-N (trace – 86.73 mg l-1),
nitrate - N (trace – 19.33 mg l-1), phosphorus (0 – 10.68 mg l-1),
Boron (0 – 3.85 mg l-1), sulfate (4.1 – 325.8 mg l-1),
chlorine (7.09 – 857.9 mg l-1)
amounts were determined and also the Residual Sodium Carbonate (RSC)
(trace – 44.02 me l-1) and
Sodium Adsorption Ratio (SAR) (0.20 – 37.15) were calculated respectively.
Wastewater samples were classified between C2S1-C4S4
according to the EC and Sodium Adsorption Ratio (SAR) values. Treatment plants
wastewater discharges vary due to the periods and negatively affected pH, EC,
ammonium, phosphorus, sulfate, boron and chlorine contents of the Nilüfer
stream.
Keywords
Resudial sodium carbonate,sodium adsorption ratio,wastewater discharge,water pollution
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