水资源保护2018，Vol.34Issue(1)：58-63,6.DOI:10.3880/j.issn.10046933.2018.01.10
河流护岸多孔生态材料对水体中硝态氮去除试验
Experiment of porous ecological material of river revetment on removal of nitrate nitrogen in water
摘要
Abstract
In order to improve the purification ability to non-point pollution of the revetment material , the porous eco-block with high permeable rate was prepared by the aggregate cross-linking method to study the relationship of particle size and permeable rate .The surface load of denitrifying bacteria was carried out on the eco-blocks with different permeable rate by the method of biofilm formation in flowing water .On this basis , the coupling effect of water permeation rate and surface area of the porous eco-block with different aggregate size on the removal rate of nitric nitrogen in water was studied .The results show that , in the same porosity , the permeable rate of the porous block decreases when its specific surface area increases , while increasing when its aggregate size expands .The removal rate of nitric nitrogen in water decreases after increasing when the permeable rate of the porous eco -block increases, the removal rate of nitric nitrogen by the porous block can be up to 90.3％ when the aggregate size of the porous eco-block is 7～11 mm and its permeable rate is 6.6 mL/(s· cm2).关键词
多孔生态砌块/透水率/反硝化菌/硝态氮去除率Key words
porous eco-block/permeable rate/denitrifying bacteria/removal rate of nitric nitrogen分类
资源环境引用本文复制引用
王万忠,饶磊,王沛芳,郭翔,张立昕,蒋涛..河流护岸多孔生态材料对水体中硝态氮去除试验[J].水资源保护,2018,34(1):58-63,6.基金项目
科技部水体污染控制与治理重大科技专项(2017ZX07204-3) （2017ZX07204-3）
江苏省"青蓝工程"中青年学术带头人项目 （）
