正交试验法在大骨节病区饮水水质研究中的应用

本文运用正交试验法对陕西永寿等大骨节病区饮水水质及其与病情间的关系进行了研究和试验,取得了如下初步认识:1)饮用缺乏Mg~(2+)、C1~-、SO_4~(2-)、HCO_3~-、Se、Sr等组分的低矿化度水,是导致大骨节病发生的重要原因。2)水中的Na~++K~+、Mg~(2+)、Ca~(2+);C1~-、SO_4~(2-)、HCO_3~-;可溶性SiO_2、有机耗氧量、矿化度;Sr、Se、Zn等含量(或阴、阳离子毫克当量百分数)的任何一组最优组合,均可用来作为优质水的划分标准。在此基础上,确定出了非致病水的水质标准。文章还对所确定出的非致病水水质标准进行了实际验证。

AN APPLICATION OF THE QUADRATURE TEST METHOD TO STUDYING THE DRINKING WATER QUALITY IN THE KASCHIN-BECK DISEASE AREAS

By using the quadrature test method, this paper disccused the relationship between the drinking water quality and the state of an illness in the Kaschin-Beck areas, and abtained the following knowledge: 1 ) Drinking the water which lacks the components Mg2+,Cl-,SO42-, HCO3-, Se, Sr and so on is an important cause led to the Kaschin-Beck disease. 2 ) Whichever of the optimum associations for the cations Na+ + K+, Mg2+, Ca2+; the anions C1-,SO2-,HCO3-; the soluble silica, organic oxygen consumption, mineralization; the content of the elements Sr, Se, Zn which have been kept in the water all may be used as a dividing criterion for the optimum quality water. On this basis, the standard of no-pathogenic water has been defined. Lastly, in the paper the standard of no-pathogenic water is tested and verified through practice.