摘要
为了科学合理地利用污水处理水进行灌溉,对天津泰达开发区不同水质灌溉下的土壤进行分析,发现污水处理水灌溉土壤中盐度、钠碱化度均比清水灌溉土壤有显著提升,按相关分级标准,已接近盐土并轻度碱化,且有加深的趋势。混水灌溉土壤较好,但长期灌溉后,也有轻微碱化的趋势,需注意监测并采取措施进行预防。
During the research of soils which are irrigated by tap water, mixed water of tap water and treated water, treated water in Tianjin Teda Economic-Technological Development Area are studied. The result shows that salinity, and sodium alkalinization percentage in treated-water-irrigated soil increase more than those in irrigated soil by tap water. According to correlative classification, the soil has approached to saline soil, and been slightly alkalinized. Further more, this phenomenon of alkalinization becomes more and more serious. The irrigated soil by mixed water is better than those treated water irrigated soil, but after 7 years of irrigation, the soil also has the trend of slight alkalinization. Therefore these soils need to be monitored and some control measures are suggested to be taken.
出处
《河北农业大学学报》
CAS
CSCD
北大核心
2005年第4期18-22,共5页
Journal of Hebei Agricultural University
基金
国家高技术研究发展项目"北方半干旱都市绿地灌溉区节水综合技术体系集成与示范"(2002AA2Z428111)
"奥运公园再生水补水技术与环境安全研究"项目
关键词
污水处理水
电导率
碱化度
氯化物
<Keyword>recycled treated water
electrical conductivity
exchange sodium percentage
chloride
