| An investigation on water quality of rural domestic sewage was carried out in Jiaxing City, Changxing County of Huzhou City, Jindong District of Jinhua City and Keqiao District of Shaoxing City, Zhejiang Province. The results showed that there was a very significant correlation among the conductivity, TN, NH3-N, TP and other indexes of influent and effluent of rural domestic sewage. The results of path analysis showed that the direct path coefficients of TN in influent and effluent were 0.472 0 and 0.455 9, respectively. TN was the main index affecting the conductivity of influent and effluent. The fitting equation of conductivity-TN content showed that the correlation coefficients between actual TN content and fitted TN content of influent and effluent were 0.682 6 and 0.785, respectively, which were significantly correlated at the level of 0.01. This indicated that there was a correlation between conductivity and TN content in water, and conductivity could reflect TN content in rural domestic sewage to a certain extent. |
