土壤对污水的渗透性及影响因素分析

基于目前污水土壤渗透研究成果,结合天然水与污水的土壤对比渗透模拟实验,结果表明,污水渗透与天然水渗透存在较大差异。差异主要表现在天然水经过一段渗透期后,将达到一稳定渗透率,污水渗透则没有该实验结果,而是保持一直降低。众多研究一致表明污水渗透曲线符合双曲线数学模型V=a×t-b,从土壤、污水性质及其相互作用3个方面分析了污水作为渗透液时,土壤渗透性的变化及其影响因素。

Analysis of Influence Factor and Penetrability of Waste Water in Soil

Based on present research production of waste water infiltration in soil,combined the soil infiltration simulation experiment of the native water compare with waste,the result showed that there was biggish difference between waste water infiltration and native water infiltration.The difference primarily showed that infiltration rate of native water would reach to steady-going after a length of time,but infiltration rate of waste water was different from native water,instead of keeping lower all the time.Numerous study showed that waste water infiltration curve conform to hyperbola mathematical model V=a·t-b.The paper analysed the variance of soil permeability and influencing factor when the waste water acted as penetrating fluid from three aspects of character of soil and waste water,and interaction of them.