响应面法与GA-BP神经网络联合优化细菌降解石油烃参数研究
鲁钧豪 , 孙先锋 , 王致桦 , 宋柯 , 吴蔓莉
现代化工 ›› 2025, Vol. 45 ›› Issue (4) : 102 -109.
响应面法与GA-BP神经网络联合优化细菌降解石油烃参数研究
Parameter optimization for bacterial degradation of petroleum hydrocarbons by response surface methodology and GA-BP neural network jointly
采用单因素法考察环境因子对石油烃降解率的影响,以石油烃降解率为响应值,利用响应面法(RSM)和遗传算法优化反向传播(GA-BP)神经网络和石油烃降解条件,并对优化结果进行对比。结果表明,目标菌株BM-1为蕈状芽孢杆菌(Bacillus mycoides),经GA-BP神经网络优化后的最优降解条件为:温度为35.10℃、pH为7.96、菌液接种量为5.17%、初始原油质量分数为1.02%,该条件下石油烃降解率的试验值可达(63.15±0.73)%,而GA-BP神经网络的预测值为63.4926%,预测值与试验值之间相对误差仅0.54%,模型整体拟合度较高(R=0.976 06),说明应用GA-BP神经网络优化石油烃降解条件合理可行。
The effects of environmental factors on the degradation rate of petroleum hydrocarbons are investigated by using a single-factor method.Taking the degradation rate of petroleum hydrocarbons as the response value,the conditions for petroleum hydrocarbon degradation are optimized through using response surface methodology (RSM) and genetic algorithm-optimized back propagation (GA-BP) neural network jointly,and the optimization results are compared.Results show that the target strain BM-1 is Bacillus mycoides.The optimal degradation conditions obtained after GA-BP neural network optimization are as follows:temperature is 35.10℃,pH is 7.96,the inoculation amount of bacterial solution is 5.17%,and initial crude oil concentration is 1.02%.Under these conditions,the experimental degradation rate of petroleum hydrocarbons reaches 63.15±0.73%,while the predicted value given by GA-BP neural network is 63.4926%,with a relative error of only 0.54% between the predicted and experimental values.The model demonstrates a high degree of fit (R=0.976 06),indicating that the application of GA-BP neural network optimization for petroleum hydrocarbon degradation conditions is reasonable and feasible.
石油烃降解 / GA-BP神经网络 / 条件优化 / 响应面法
petroleum hydrocarbon degradation / GA-BP neural network / condition optimization / response surface methodology
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国家自然科学基金项目(52070154)
陕西省科技厅重点研发计划项目(2023-YBNY-251)
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