摘要
为分析砌筑工程中透水混凝土生态膜污水净化机理,利用黄沙、粉煤灰、水泥、碎石和活性材料CRLT-1构成透水混凝土生态膜。采用六槽并排串联的形式完成反应器的安装,通过不同分析法对COD_(cr)、BOD_5、TP和TN变化进行分析;分别对生态膜自身结构和降解有机物机理、生物氧化分解、过滤截留进行研究,得到砌筑工程中透水混凝土生态膜的净水机理。实验结果表明,生态膜对COD_(cr)去除率最高可达97%,对BOD_5去除率最高可达96%,对TN的去除率最高可达79%,对TP的去除率最高可达50%。
In order to analyze the purification mechanism of pervious concrete ecological membrane in masonry engineering, this study uses yello＇w sand , ash , cement , gravel and active material CRLT - 1 to form pervious concrete ecological membrane. Com-plete the reactor instaHation with six slots side - by - side in the form of a certain number of diaphragm were set up. The changes ofC0DCT , BOD5 , TP and TN were analyzed. The structure and degradation mechanism of organic matter , btration were studied respectively , and the water purification mechanism of pervious concrete eneering was obtained. The experimental results showed that the removal rate of C0DCT by the ecological membrane rhighest BOD5 removal rate was 96% , the removal rate of TN was 79% , and the removal rate of TP reached 50%.
作者
李营
Li Ying(School of Economics and Management, Beijing Jiao tong University, Beijing 100044, China)
出处
《环境科学与管理》
CAS
2018年第4期79-82,共4页
Environmental Science and Management
关键词
砌筑工程
透水混凝土
生态膜
净水机理
masonry works
permeable concrete
ecological membrane
water purification mechanism
