摘要
含铬废水蒸发系统结垢会给设备安全、连续、低成本运行带来不利影响,因此对含铬废水蒸发系统结垢趋势进行预测十分必要。在研究较为成熟的预测油田水结垢趋势的稳定指数(SAI)模型基础上,研究了铬化工行业产生的高浓度含铬废水结垢趋势预测问题。通过分析温度、硬度、铬离子浓度等因素对含铬废水蒸发系统碳酸钙结垢量的影响,并运用Matlab中cftool工具对实验数据进行拟合,实现了对SAI模型的优化与改进。优化后的稳定指数(SAII)可以对含铬废水蒸发系统结垢趋势进行更准确地预测。
The fouling of the chromium-containing wastewater evaporation system adversely affects the safety of the equipment and the continuous and low-cost operation of the equipment.Thus,it is necessary to predict the fouling tendency of the chromium-containing wastewater evaporation system.Based on the more mature stability index(SAI)model used for predicting oil-water scaling trends,the object of this paper is to study the fouling trend prediction pro-blem of the high-concentration chromium-containing wastewater produced by the chrome chemical industry.The eff-ects of temperature,hardness,and chromium ion concentration on the amount of calcium carbonate in the chromium-containing wastewater evaporation system are analyzed.Meanwhile,the cftool tool in Matlab is used to fit the ex-perimental data.Therefore,the stability index(SAI)model is optimized and improved.The optimized stability index(SAII)can more accurately predict the fouling tendency of the chromium-containing wastewater evaporation system.
作者
赵一满
王永强
诸勇
吴爱军
周中田
曹竹
Zhao Yiman;Wang Yongqiang;Zhu Yong;Wu Aijun;Zhou Zhongtian;Cao Zhu(School of Environment and Resources,Southwest University of Science and Technology,Mianyang 621010,China;National Enterprise Technology Center of Yinhe Chemical,Sichuan Province,Mianyang 621010,China)
出处
《工业水处理》
CAS
CSCD
北大核心
2019年第10期45-49,共5页
Industrial Water Treatment
关键词
含铬废水
低温多效蒸发
结垢趋势预测
优化稳定指数
chromium-containing wastewater
low-temperature multi-effect evaporation
fouling trend prediction
op-timized stability index
