元谋糖厂、纸厂废水污灌后果分析

Analysis of Irrigation by Wastewater Discharged from Sugar-house and Paper Plant in Yuanmou

对元谋土壤理化性状、污灌作物、废水中污染物的对比分析表明，糖厂、纸厂废水用于元谋干热地区污灌，可给土壤补充养份，增加稻米、红薯、花生中粗蛋白含量，但会使淀粉含量略有下降，并且废水中的Ｃｌ－和Ｎａ＋会使甘蔗、红薯口感不佳。污灌基本不存在Ａｓ、Ｈｇ。

According to the analysis of physical and chemical properties of soil,crops irrigated by wastewater,and the comparison of pollutants in the wastewater,the irrigation of wastewater discharged from the sugar-house and the paper plant in dry area would implement nutrition to the soil and add crude protein to rice,potato and peanut.However the taste of sugarcane and potato is not comfortable due to the CL - and Na + in the wastewater.The irrigation is proved not to be influenced by poisonous substances,such as As,Hg and acid.