摘要
对页岩、粗砾石、铁矿石、麦饭石及页岩与麦饭石组合、页岩与粗砾石组合、粗砾石与铁矿石组合、粗砾石与麦饭石组合8种湿地填料的水质净化效果进行了比较研究,结果表明:在相同进水水质和水力负荷条件下,页岩填料对COD、TN、TP去除效果最好,其次为页岩与粗砾石组合填料,麦饭石去除效果较差。从材料成本及来源比较,粗砾石材料分布较广、成本较低,页岩次之。因此,从去污效果和建设成本综合考虑,页岩与粗砾石组合是人工湿地较为理想的填料。
The effect of eight filling such as shale, rough gravel, ironstone, hornblende and their combined structure on water purification was studied in this paper. The experiment results showed that the effect of the shale filling on removing of COD, ＇IN, and TP is the best, the effect of the combinatorial filling of shale and rough gravel is the second better, and the effect of the hornblende is worst. Considering the physical properties and long-term operation of the substrates, the shale and course gravel as constructed wetlands substrate was suitably.
出处
《海河水利》
2008年第4期40-42,共3页
Haihe Water Resources
基金
天津市科委重大科技攻关项目(043115111-1)
关键词
人工湿地
填料
去污性能
水质净化
constructed wetlands
substrates
pollutants removal performance
wastewater purification
作者简介
刘学功（1962-），男，硕士，高级工程师，主要从事水利科研工作。
