扬中水体氮素转化规律及其影响因素

本文选用扬中县江、河、塘泥,进行了实验室模拟试验,得出了这三种水体氮素的转化规律及其影响因素。结果表明,底泥的性质、水温及pH、溶解氧和藻类的生长,对氮素转化都有一定的影响。底泥速效氮含量(x)与水体氮素转化速度常数(k)呈正相关。Arrhenius活化能△E=52815.67(J/mol)。水中pH中性和微碱性、溶解氧含量高以及良好的藻类生长,均有利于硝化作用的进行。 

THE RULE OF NITROGEN CONVERSION AND ITS INFLUENTIAL FACTORS IN WATER AT YANGZHONG COUNTY

This study simulates the rule of nitrogen conversion and its mainly influential factors in three types of water bodies ( river, stream and pond ) in Yangzhong county. The results demonstrate that the nitrogen conversion in water is affected to a certain extent by the nature of the sediment, temperature , pH, DO and the growth of algae in water. Nitrogen conversion rate in water is directly related to the available nitrogen content in the sediment. Arrhenius activation,△E= 52815. 67(J/mol). Water pH on neutrality or slight alkalinity, the increase of DO and the growth of algae all are favorable to the process of nitrification.