Characterization and seasonal variation of sewage sludge

In this study, 'Elazığ Kenti Evsel Aüksu Arıtma Tesisi Arıtma Çamurlarının Karakterizasyonu ve Mevsimsel Değişimi' is investigated. Nitrogen, phosphorus, potasium, calsium, magnesium, sodium, sodium adsorption rate, carbon and heavy metal analisis carried out of treatment sludge simples taken of drying beds. In addition, pH, TS, VS, SS, moisture rate, NH3-N and TKN analisis carried out of seasonal treatment sludge simples taken of primary settled, second settled and entry of drying beds; NO3-N and N02- N analisis carried out of primary settled treatment sludges. By judging the analysis data, seasonal changes of physical and chemical characteristics of refinement sludge have been indicated. Nitrogen yields of drying bed sludges have been found between 0.20 % and 0.89 %; phosphorus and potasium concentrations have minor levels. Calcium and magnesium concentrations have the same major and minor rates. Sodium adsorption rates have major levels. Carbon yields are between 17.86 % and 34.78 %. Generally, there are more pH, TS, VS and SS in the drying bed entry sludges than in the primary and the second settled sludges. These three treatment sludge types's moisture yields have above 85 %. The primary settled sludges have more NH3-N and TKN levels than the secondsettled sludges. But NO3-N and NO2-N levels are less than NH3-N levels. Seasonal physical and chemical changes of treatment sludges must be discovered so that the pollution loads of treatment sludges can be defined and conformable methods can be selected for sludge management and final apart. Keywords : Treatment sludge, heavy metal, sewage sludge, raw sludge, nitrogen, phosphorus, potassium.