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Bu çalışmada süt endüstrisi atıksularından kaynaklanan peyniraltı suyunun koagülasyon/flokülasyon yöntemiyle kimyasal arıtımı amaçlanmıştır. Peyniraltı suyunun kimyasal arıtımı, jar testi deneyleriyle yürütülerek en iyi pH aralığında optimum koagülant cinsi ve dozu belirlenmiştir. pH (4,0-8,5) ve koagülant dozunun (0,25-2,0 g/L) KOİ (kimyasal oksijen ihtiyacı) giderim verimine etkisini incelemek üzere kesikli deneyler yapılmıştır. Koagülant olarak demir sülfat, alüminyum sülfat (alum) ve kil (montmorillonit) kullanılmıştır. Optimum koagülant dozu 1,0 g/L ve pH 7,0 olarak belirlenmiştir. Kil, alum+kil, demirsülfat+kil için sırasıyla %88, %91 ve %92 KOİ giderim verimi ve %89, %93 ve %95 AKM (askıda katı madde) giderim verimi elde edilmiştir. Yapılan kimyasal arıtma deneylerinde montmorillonitin diğer koagülantlarla birlikte ön arıtım amacıyla kullanılabileceği sonucuna varılmıştır. Ancak su kirliliği kontrol yönetmeliğinde belirtilen deşarj standartları sağlanamadığı için kimyasal arıtımın sadece kendinden sonraki ünitenin yükünü hafifleteceği tespit edilmiştir.
This study aimed at the chemical processing of cheese water derived from milk industry waste by the method of coagulation/floculation. The chemical processing of the cheese water is carried out with jar test tests and the optimal coagulant gender and dose are determined in the best pH range. Cut tests have been conducted to study the effect of the pH (4,0-8,5) and the coagulant dose (0,25-2,0 g/L) on COI (chemical oxygen need) discharge yields. As a coagulant, iron sulfate, aluminum sulfate (alum) and silk (montmorillonite) were used. The optimal dose of the coagulant is 1,0 g/l and pH is 7,0. For silk, aluminum + silk, iron sulfate + silk, respectively 88, 91% and 92% COI waste yield and 89, 93% and 95% AKM (hard material in silk) waste yield was obtained. Chemical processing tests have found that montmorillonitin can be used with other coagulants for preliminary purposes. However, as the deforestation standards specified in the water pollution control regulations are not provided, the chemical treatment will only relieve the burden of the subsequent unit.
In this study, chemical treatment of whey originating from dairy industry wastewaters by coagulation/flocculation method was aimed. The chemical treatment of whey was carried out with jar test experiments and optimum coagulant type and dosage were determined in the best pH range. Batch experiments were performed to investigate the effect of pH (4.0-8.5) and coagulant dose (0.25-2.0 g /L) on COD (chemical oxygen demand) removal efficiency. Iron sulfate, aluminum sulfate (alum) and clay (montmorillonit) were used as coagulants. Optimum dose of coagulant was 1.0 g/L and pH 7.0. For clay, alum + clay, iron sulphate + clay, 88%, 91% and 92% COD removal efficiency and 89%, 93% and 95% SS (suspended solid) removal efficiency were obtained respectively. In the chemical treatment experiments, it was concluded that montmorillionite can be used together with other coagulants for pre- treatment. However, since the discharge standards specified in the water pollution control regulation could not be met, it was determined that chemical treatment would only relieve the load of the next unit.
Alan : Mühendislik
Dergi Türü : Ulusal
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