炼油污水生化处理单元的模拟与优化

发布时间：2018-04-19 00:10

本文选题：炼油污水 + BioWin　；参考：《环境工程》2017年02期

【摘要】：目前石化废水处理存在管理粗放、能耗大以及为了处理流程冗长复杂等问题。对现有的处理流程进一步提标降耗是最经济可行的手段。以某炼油厂含油系列废水处理设施的运行为例,应用基于ASDM数学模型的BioWin软件,对其两级A/O工艺进行建模模拟。通过调节运行参数,考察了溶解氧(DO)、混合液悬浮固体浓度(MLSS)和分段进水比例等参数对出水水质的影响。结果表明:两级A/O各自的好氧池ρ(DO)均在2 mg/L,一级A/O的ρ(MLSS)在4000 mg/L左右,二级A/O的ρ(MLSS)在2 000 mg/L左右,两级进水比为4∶1时为最优条件。此时,COD和TN去除率分别了提高2.2%和14.6%,出水可满足现有排放标准,并且耐冲击能力强,可节省曝气能耗。
[Abstract]:At present, petrochemical wastewater treatment has some problems, such as extensive management, high energy consumption and long and complicated process.It is the most economical and feasible means to further raise the standard and reduce the consumption of the existing process.Taking the operation of an oil-bearing wastewater treatment facility in a refinery as an example, the two-stage A / O process is modeled and simulated by using BioWin software based on ASDM mathematical model.By adjusting the operation parameters, the effects of dissolved oxygen (do), suspended solid concentration (MLSS) of mixed solution and the proportion of stage influent on the quality of effluent were investigated.The results show that the two stage A / O aerobic ponds 蟻 do) are at 2 mg / L, the first stage A / O 蟻 / MLSS is about 4000 mg/L, the second stage A / O 蟻 / MLSS is about 2 000 mg/L, and the two stage influent ratio is 4:1.The removal rates of COD and TN were increased by 2.2% and 14.6% respectively. The effluent can meet the existing discharge standards and has strong impact resistance and can save aeration energy consumption.
【作者单位】：青岛科技大学化工学院;中国石油化工股份有限公司青岛安全工程研究院;
【基金】：中国石油化工股份有限公司炼油污水处理系统优化控制技术开发项目(315111)
【分类号】：X742

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