Atıf Sayısı
6
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10
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3
Bu çalışmada, yüksek kirletici yükleri ile karakterize edilen süt endüstrisi atıksularının kimyasal arıtımı amaçlanmıştır. Arıtımda koagülant olarak demir III klorür (FeCl3.6H2O) ve alüminyum sülfat (Al2(SO4)3.18H2O) kullanılmış, her iki koagülant için optimizasyon metodu olarak yanıt yüzey yönteminin (YYY) merkezi kompozit tasarımı (MKT) uygulanarak atıksudan kimyasal oksijen ihtiyacı (KOİ) ve askıda katı madde (AKM) giderimleri incelenmiştir. Yöntem yardımıyla KOİ ve AKM giderim verimlerinin hesaplanabileceği denklemler elde edilmiş, arıtma prosesini etkileyen en önemli parametreler ortaya konularak giderimleri maksimum yapan şartlar belirlenmiştir. Demir III klorür ile yapılan çalışmalarda KOİ ve AKM giderim verimlerini maksimum yapan şartlar; pH: 7.41, doz: 158.579 mg L-1 elde edilmiş ve bu şartlarda KOİ ve AKM giderim verimleri sırasıyla %80.84 ve %98.10 olmuştur. Alüminyum sülfat (alüm) ile yapılan çalışmalarda KOİ ve AKM giderim verimlerini maksimum yapan şartlar; pH: 7.29, doz: 197.475 mg L-1 elde edilmiş ve bu şartlarda KOİ ve AKM giderim verimleri ise sırasıyla %73.33 ve %96.21 olmuştur.
This study aims to chemical treatment of dairy industry waste characterized by high polluting loads. In the processing, iron III chloride (FeCl3.6H2O) and aluminum sulfate (Al2(SO4)3.18H2O) were used as coagulants, the response surface method (YYY) central composite design (MKT) as an optimization method for both coagulants was applied to the chemical oxygen need (KOI) and suspended solid substance (AKM) waste. With the help of the method, the equations that COI and AKM spending outcomes can be calculated have been obtained, the most important parameters affecting the process of processing have been revealed and the conditions that make the spending maximum. In studies with iron III chloride, the conditions that maximize the COI and ACM output; pH: 7.41, dose: 158. 579 mg L-1 was obtained and in these conditions the COI and ACM output results were respectively 80.84 % and 98.10 %. In studies with aluminum sulfate (aluminium) the conditions that maximize the COI and ACM yields; pH: 7.29, dose: 197.475 mg L-1 was obtained and in these conditions the COI and ACM yields were 73.33% and 96.21% respectively.
In this study, the chemical treatment of dairy industry wastewater characterized by high pollutant load is aimed. In the treatment, iron III chloride (FeCl3.6H2O) and aluminum sulphate (Al2(SO4)3.18H2O) were used as coagulants. Chemical oxygen demand (COD) and suspended solids (SS) removal were analyzed by applying the central composite design (CCD) optimization method of response surface methodology (RSM) for both coagulants. Emprical equations giving the COD and SS removal efficiency were derived by RSM. The most important parameters affecting the treatment process and the conditions maximizing the COD and SS removal were determined by the equations. As a result, the conditions that maximize the COD and SS removal efficiency of iron III chloride were obtained as pH: 7.41, dose: 158.579 mg L-1 and COD and SS removal efficiency of iron III chloride at these conditions were 80.84% and 98.10%, respectively. Also, the conditions maximizing the COD and SS removal efficiency of aluminum sulphate (alum) were obtained as pH: 7.29, dose: 197.475 mg L-1 and COD and SS removal efficiency of alum at these conditions were obtained as 73.33% and 96.21%, respectively.
Dergi Türü : Uluslararası
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