The main purpose of this study was to investigate the effect of operating conditions on the performance of two methods used for dairy wastewater treatment. First, conventional activated sludge (AS). Second, conventional sequencing batch reactor (SBR). On one side, the study included the comparison between the two basic systems. On the other side, it studied the influence of adding plastic media on both systems. The modified systems are known as biofilm conventional activated sludge (BAS) and biofilm sequencing batch reactor (BSBR). Four pilot-scale bioreactors, were operated in parallel under different conditions of temperature; 20, 35 and 45 °C. Synthetic dairy wastewater was used with characterizations of COD; 5000 mg/l, NH₃-N; 250 mg/l and TP; 50 mg/l. The results recorded that the optimum temperature was 35 °C where removal efficiencies for COD were (93.52%, 96.63%, 94.74% and 97.79%), (89.01%, 91.14%, 90.45% and 93.22%) for NH₃-N, and the concentration of NO₃-N in effluents was (7.56 mg/l, 10.58 mg/l, 8.72 mg/l and 14.12 mg/l) for AS, BAS, SBR and BSBR respectively. At temperature equals to 45 °C; the oxygen consumption recorded the highest level of consumption, it was (1.07 mg/l, 1.64 mg/l, 0.98 mg/l and 1.23 mg/l) for AS, BAS, SBR and BSBR respectively. The results indicated that the sludge settleability was enhanced with the decrease of temperature. Furthermore GPS-X simulator was employed to predicting the performances of the biological systems under high COD concentrating reaching up to 17500 mg/l. GPS-X results indicated that SBR effluent could comply with Egyptian standard NO 2000. An overview, comparing with various treatment systems, it can be concluded that the SBR was the optimum treatment method for dairy wastewater based on the investigated conditions.

这项研究的主要目的是研究操作条件对乳品废水处理两种方法性能的影响。首先，传统的活性污泥（AS）。第二，常规的顺序批处理反应器（SBR）。一方面，研究包括两个基本系统之间的比较。另一方面，它研究了添加塑料介质对两个系统的影响。改进后的系统称为生物膜常规活性污泥（BAS）和生物膜测序间歇反应器（BSBR）。四个中试规模的生物反应器在不同的温度条件下并行运行。20、35和45°C。合成奶类废水用于COD的表征。5000 mg / l，NH ₃-N; 250 mg / l和TP; 50毫克/升 结果表明，最佳温度为35°C，其中NH ₃ -N对COD的去除效率分别为（93.52％，96.63％，94.74％和97.79％），（89.01％，91.14％，90.45％和93.22％）;和NO ₃的浓度对于AS，BAS，SBR和BSBR，废水中的-N分别为（7.56 mg / l，10.58 mg / l，8.72 mg / l和14.12 mg / l）。温度等于45°C时；氧气消耗量最高，AS，BAS，SBR和BSBR分别为（1.07 mg / l，1.64 mg / l，0.98 mg / l和1.23 mg / l）。结果表明，随着温度的降低，污泥沉降能力增强。此外，GPS-X模拟器用于预测高COD浓度高达17500 mg / l的生物系统的性能。GPS-X结果表明，SBR废水可以符合埃及标准NO2000。概述，与各种处理系统进行比较，可以得出结论，根据研究的条件，SBR是乳品废水的最佳处理方法。