Damayanti A, Ujang Z, Salim M R, Olsson G, Sulaiman A Z
Institute of Environmental and Water Resource Management (IPASA), Universiti Teknologi Malaysia (UTM), 81310 Skudai, Johor Bahru, Malaysia.
Bioresour Technol. 2010 Jan;101(1):144-9. doi: 10.1016/j.biortech.2009.08.034. Epub 2009 Sep 5.
Activated sludge models (ASMs) have been widely used as a basis for further model development in wastewater treatment processes. Values for parameters to be used are vital for the accuracy of the modeling approach. A continuous stirred tank reactor (CSTR), as open respirometer with continuous flow for 20 h is used in ASMs. The dissolved oxygen (DO) profile for 11 days was monitored. It was found the mass transfer coefficient K(La) is 0.3 h(-1) during lag and start feed phase and 0.01 h(-1) during stop feed phase, while the heterotrophic yield coefficient Y(H) is 0.44. Some of the chemical oxygen demand (COD) fractionations of palm oil mill effluent (POME) using respirometric test in ASM models are S(s) 50 mg/L, S(I) 16,600 mg/L, X(S) 25,550 mg/L, and X(I) 2,800 mg/L. The comparison of experimental and ASM1 from OUR concentration is found to fit well.
活性污泥模型（ASMs）已被广泛用作废水处理过程中进一步模型开发的基础。所使用参数的值对于建模方法的准确性至关重要。在ASMs中使用连续搅拌釜式反应器（CSTR），作为连续流动20小时的开放式呼吸仪。监测了11天的溶解氧（DO）曲线。发现在延迟和开始进料阶段传质系数K（La）为0.3 h⁻¹，在停止进料阶段为0.01 h⁻¹，而异养产率系数Y（H）为0.44。在ASM模型中使用呼吸测定法对棕榈油厂废水（POME）进行的一些化学需氧量（COD）分级为S（s）50 mg/L、S（I）16,600 mg/L、X（S）25,550 mg/L和X（I）2,800 mg/L。从OUR浓度来看，实验结果与ASM1的比较结果吻合良好。
