Mohsen YAZDANIAN, Sadegh GHASEMI, Roya MAFIGHOLAMI

EXAMINING PERFORMANCE OF STABILIZATION PONDS OF AHVAZ'S SLAUGHTERHOUSE

Atık stabilizasyon havuzu (ASH), evsel atık su ve diğer kanalizasyon türlerinin uzun süre bekletildiği, içinde bulunan organik materyallerin ışığa, ısınmaya, alg ve mikroorganizmaların büyümesine ortam hazırlayarak çökelmesine, parçalanmasına ve stabilize edilmesini sağlayan bir kuyudur. Bu çalışmada; İran'ın Ahvaz bölgesinde bulunan bir mezbahane toplanan ve arıtma tesisinde arıtılmış atık sulardan numune alınarak ASH ile atık suyun arıtımındaki verimin saptanması ve sulama amaçlı kullanılabilmesi için İran Çevre Koruma Örgütü tarafından belirlenen standartlarla ilgili ölçülen parametrelerin karşılaştırılması yapılmıştır. Çalışma sonucunda, arıtılmış atık suyun Türbiditesi, BOİ5, pH, KOİ, TÇKM ve TAKM değerleri sırasıyla > 1000 NTU, 912 mg/L, 8.78, 1520 mg/L, 1052 mg/L ve 2180 mg/L olarak elde edilmiştir. Bu değerlerin İran Çevre Koruma Örgütü tarafından belirlenen standart değerlerle karşılaştırılması sonucunda anlamlı bir farklılık gözlemlenmektedir. Bulgular sonucunda çalışmakta olan atık su arıtma tesisinin verimlilik ve performans açısından zayıf olduğu görülmektedir. Tesis tarafından arıtılan atık su, sulama için kullanılmamalı ve yüzeysel suya deşarj edilmemelidir

İran'ın Ahvaz Bölgesinde Mezbahane Stabilizasyon Havuzu ArıtmaVeriminin Araştırılması

A waste stabilization pond (WSP) is a hole in which household wastewater and other types of sewage are stored for long periods so that organic materials existing in them are deposited, decomposed and stabilized through exposure to light, heat, growth of algae and microorganisms. In this study, wastewater samples collected and treated by the treatment plant of a slaughterhouse in Ahvaz region of Iran and compared the relevant measured parameters with the standards, which set by the Environmental Protection Organization of Iran in order to determine the efficiency of WSPs in treating wastewater and making them usable for irrigation purposes. The results indicate that Turbidity, BOD5, PH, COD, TDS, and TSS values for the treated wastewater stood at >1000 NTU, 912 mg/l, 8.78, 1520 mg/l, 1052 mg/l, and 2180 mg/l respectively. A comparison of these values with the standard values set by the Environmental Protection Organization of Iran revealed a significant difference. This finding shows that the wastewater treatment plant under study had a poor productivity and performance. The wastewater treated by that facility should not be used for irrigation or discharge into surface water

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