摘要
介绍了悬浊液光电分析仪 (PDA)的检测原理 ,通过理论分析把平均透光强度 (对应于DC值 )确定为原水特性的表征参数。试验结果表明 ,DC值与单位体积水中泥沙总表面积SP 具有幂函数关系 :DC =cSPd,c、d为经验系数 ,与原水颗粒性质有关 ,对于黄河青铜峡泥沙来说 ,c=90 .4 ,d =- 1 .2 3,R2 =0 .976 6 ,为进一步研究混凝剂投药量公式奠定了基础。
The theory of photometric dispersion analyzer was introduced. The average transmitted light intensity (correspond to DC value) was determined as characteristic parameter of raw water by theoretic analysis. The experimental results show that there is an exponential function relation between DC and surface area of clay in unit volume of water(S_P):DC=cS_Pd in which c and d are empirical coefficients related to character of particles, for clay particles of Yellow River, c=90.4 and d=-1.23 and R2=0.9766. So the base was established to study the formula of flocculant dosage.
出处
《净水技术》
CAS
2004年第5期9-11,47,共4页
Water Purification Technology
基金
国家自然科学基金项目 (5 0 0 780 43 )
