农田生态沟渠护坡用生态混凝土净水影响研究  

Study on Water Purification Effect of Ecological Concrete for Slope Protection of Farmland Ecolog⁃ical Ditches

作　　者：梁世君 许立宏 曹玉成[1] LIANG Shijun(College of Environment and Resources,Zhejiang A&F University,Hangzhou 311300,China)

机构地区：[1]浙江农林大学环境与资源学院,浙江杭州311300

出　　处：《安徽农学通报》2021年第19期140-142,154,共4页Anhui Agricultural Science Bulletin

摘　　要：通过室内模拟试验,研究了3种不同粒径与CMC掺量制备的生态混凝土对富营养化污水的净化效果。结果表明,整个试验周期内,A组(5~10mm粒径碎石骨料与0.05%掺量CMC)、B组(10~20mm粒径碎石骨料与0.1%掺量CMC)和C组(20~40mm粒径碎石骨料与0.15%掺量CMC)TP表面去除负荷分别为0.919g·m^(-3)·d^(-1)、0.722g·m^(-3)·d^(-1)和0.600g·m^(-3)·d^(-1);TN表面去除负荷分别为5.756g·m^(-3)·d^(-1)、5.912g·m^(-3)·d^(-1)和5.949g·m^(-3)·d^(-1);COD表面去除负荷分别为52.726g·m^(-3)·d^(-1)、53.710g·m^(-3)·d^(-1)和53.704g·m^(-3)·d^(-1)。说明生态混凝土净化污水的能力受粒径与CMC掺量的影响较大。The purification effect of three kinds of ecological concrete with different particle size and CMC dosage on eutrophication wastewater was studied by laboratory simulation test.The results show that,During the whole test period,group A(5-10mm gravel aggregate and 0.05%CMC),group B(TP surface removal loads of 10-20mm grav⁃el aggregate with 0.1%CMC) and group C(20-40mm gravel aggregate with 0.15%CMC)were 0.919g·m^(-3)·d^(-1),0.722g·m^(-3)·d^(-1) and 0.600g·m^(-3)·d^(-1),respectively.TN surface removal loads were 5.756 g·m^(-3)·d^(-1),5.912g·m^(-3)·d^(-1) and 5.949g·m^(-3)·d^(-1),respectively.The surface removal loads of COD were 52.726 g·m^(-3)·d^(-1),53.710g·m^(-3)·d^(-1) and 53.704 g·m^(-3)·d^(-1),respectively.It shows that the capacity of ecological concrete to purify sewage is greatly affected by particle size and CMC content.

关 键 词：生态混凝土 粒径 CMC 污染去除效率 

分 类 号：S18[农业科学—农业基础科学]