重庆南温泉洗浴废水用作植物灌溉水的可行性研究  

A Study on Feasibility of South Hot Springs Bathing Wastewater for Green Plant Irrigation

作　　者：幸宏伟[1] 赖田利 秦坤蓉[1] 徐武东[1] 

机构地区：[1]重庆工商大学环境与生物工程学院,重庆400067

出　　处：《节水灌溉》2015年第4期59-62,65,共5页Water Saving Irrigation

基　　金：重庆市科技攻关项目温泉废水综合利用(CSTC;2011AC7129)

摘　　要：重庆市温泉资源丰富,温泉洗浴废水运用于绿地灌溉可以节约成本,缓解城市的水危机。温泉洗浴废水对植物生长有正负两方面的影响,与植物的种类,温泉洗浴废水的水质等因素有关。实验以重庆市常见的两种绿地植物——冷水花木春菊为研究对象,对温泉洗浴废水中影响植物生长的pH、固体悬浮物、高锰酸钾,总溶解性固体4个常见指标进行了浓度值对比实验。运用对相对电导率拟合Logistic方程求半致死浓度值的方法,确定绿地植物所能耐受的上限阀值。以此为基础对温泉废水进行相关处理,使温泉废水既可以达到灌溉绿地的水质标准,又能最大限度地降低废水处理成本,从而充分利用水资源。Chongqing city has a lot of hot spring resources.Using hot spring bathing wastewater for greenbelt irrigation can save the cost and relieve the urban water crisis.Hot spring has both positive and negative effects on plants,which is concerned with the plant kind and hot spring water quality and other factors.In this experiment,two common kinds of plant,namely water flower and Argyranthemum frutescens,are selected as the objects of study,and four normal water quality indicators of hot spring bathing wastewater which affect the growth of plant,including pH,suspended solids,KMnO4,total dissolved solids,are analyzed through concentration comparison experiment.A method for getting the value of semi lethal concentration by using the relative electrical conductivity to fit Logistic equation is used to get the upper limit of tolerated thresholds of the green plants.Based on the above results,the hot spring wastewater is treated to not only reach the irrigation water quality standard for greenbelt,but also can maximally reduce the waste water treatment cost,so as to make full use of water resources.

关 键 词：温泉洗浴废水 水质指标 LOGISTIC方程 半致死浓度 

分 类 号：S274[农业科学—农业水土工程]