摘要
实验室废水处理反应器处理实际城市污水运行75 d .主要系统为包含两部份的上流式生物滤器.生物滤器上部曝气,用于硝化;下部缺氧,用于反硝化.为了避免自养硝化菌和异养微生物的竞争,采用新式间接启动方法实现硝化仅用时两周.该生物滤器在室温下运行,溶解于水中总有机碳(DOC)的去除率可达到75 %,总固体悬浮物的去除率可达88·5 %,总氨氮和总氮可分别去除94 %和60 %.
An experimental wastewater treatment reactor for municipal sewage was monitored for 75 days. The main system was an up-flow biofilter composed of two parts. The upper part was aerated for nitrification and the lower part was anoxic for denitrification . In order to avoid the competition between autotrophic nitrifiers and heterotrophic microorganisms, a novel indirect type start-up was carried out which realized nitrification only in two weeks. The biofilter, operated under room temperature （average temperature of 20 ℃ ）, was able to remove about 75% of dissolved organic compounds（DOC）, and 88. 5% of total suspended solids（SS）. The total ammonia nitrogen（NH4^＋-N） and total nitrogen（TN） reductions averaged 94% and 60%, respectively.
出处
《西南师范大学学报（自然科学版）》
CAS
CSCD
北大核心
2006年第4期79-85,共7页
Journal of Southwest China Normal University(Natural Science Edition)
关键词
生物滤器
启动
脱氮
污水处理
biofilter
start-up
nitrogen removal
wastewater treatment
