摘要
在污泥磷回收的单因素实验基础上,筛选了p H值、白云石投加量、反应温度为重要影响因素,利用Design-expert对影响因素进行实验设计及响应面优化分析。实验结果表明:拟合的曲线与实测值相关性较好(R2为0. 9784),并确定了可操作性的实验条件:p H值为9、白云石投加量为238 mg/L、反应温度为28℃,在此条件下磷的回收率可达92. 48%,与预测值相比的误差为0. 83%。
Several important factors, such as pH value, dolomite dosage and reaction temperature, were screened on the basis of single experiment on phosphorus recovery from sludge, and experimental design and response surface optimization were analyzed by using design-expert about the influencing factors. The experimental results showed that the fitting curve and the measured values had a good correlation （R 2 equals to 0.9784 ）, and phosphorus recovery rates was up to 92.48% under the conditions of pH 9, dolomite dosage of 238 mg/L and reaction temperature of 28 ℃. And the error between the experimental and predicted values was 0.83%.
作者
马龙
杨成
孟凡非
崔丽芳
蒋秀娅
袁菊
MA Long;YANG Cheng;MENG Fan-fei;CUI Li-fang;JIANG Xiu-ya;YUAN Ju(College of Ecological and Environmental Engineering,Guizhou Minzu University,Guizhou Guiyang 550025;Guizhou Chuangye Water Service Co.,Ltd.,Guizhou Guiyang 550003;Guizhou Zhuxin Water Service ＆Environmental Industry Co.,Ltd.,China Water Environment Group Co.,Ltd.,Guizhou Guiyang 550007,China)
出处
《广州化工》
CAS
2018年第20期54-55,86,共3页
GuangZhou Chemical Industry
基金
贵州省优秀科技教育人才省长资金项目(黔省专合字[2012]72号)
贵州民族大学研究生科研基金项目(16yjsxm089)
关键词
白云石
响应面
优化
磷回收率
dolomite
response surface
optimization
phosphorus recovery rates
