摘要
本文根据水中碳酸平衡原理分析了反渗透系统产水pH值的变化,得出pH值下降量等于系统对HCO3-透过率的负对数的结果,并导出了在两级反渗透系统中加碱调节pH值至8.3加碱量的计算公式,可供系统设计和调试参考。
The change of pH of the permeate water in RO system was analyzed according to the balance principle of carbonic acid in water, and it was shown that the decrement of pH equaled the negative logarithm of HCO3- permeability through system. Meanwhile a formula was derived for calculating the alkali quantity needed when pH value being adjusted to 8.3 by dose alkali in a two-pass RO system; the formula can be used as a reference for design and debugging of the system to calculate the added alkali in two-pass RO system when the pH in water was regulated up to 8.3. The formula can be used in the system design and test.
出处
《水处理技术》
CAS
CSCD
北大核心
2005年第6期79-80,共2页
Technology of Water Treatment
关键词
两级反渗透系统
pH值调节
加碱量控制
two-pass RO system
regulation of pH
control of added alkaline
