摘要
本文利用生物转笼耦合水生植物系统处理城市湖库重度黑臭和轻度黑臭水体,研究该系统对两种黑臭水体修复性能,以及强化系统脱氮除磷的方法。结果表明:重度黑臭水体系统修复可在4 d内快速消除黑臭,轻度黑臭水体修复时间可缩短至3 d。经处理,两种水体氨氮浓度降至8 mg/L以下,溶解氧浓度提升至5 mg/L以上,透明度提升至33 cm以上,氧化还原电位提升至100 m V左右。两种水体经系统修复5 d后,氨氮浓度达到《地表水环境质量标准》(GB 3838-2002)Ⅳ类标准,水中氨氮基本转化为总氮(TN)。同时,系统兼具一定的TN、总磷(TP)去除能力。碳源促进微生物和植物耦合技术去除城市黑臭水体TN,TP。间断投加碳源,系统修复作用1周后可使水体TN,TP浓度由《地表水环境质量标准》(GB 3838-2002)的劣Ⅴ类值改善至Ⅳ类以内。
The rotating-cage bioreactor with aquatic macrophytes was used to treat severely and moderately malodorous waters in urban lakes.The rehabilitation performance for the two kinds of water and the reinforced method of removing nitrogen and phosphorus were systematically studied.The time needed for the restoration was usually 4 days for the severe case,and 3 days for the moderate one.For both rehabilitated waters,ammonia nitrogen decreased to below 8 mg/L,the dissolved oxygen increased to above 5 mg/L,the transparency increased to above 33 cm,and the oxidation-reduction potential increased to around 100 mV.After 5 days,ammonia nitrogen reached theⅣclass of the environmental quality standards for surface water(GB 3838-2002),and substan?tially transformed into total nitrogen.The coupled rehabilitation system also showed certain capability to remove total nitrogen(TN)and total phosphorus(TP)based on technology of coupling between carbon-promoted microbial and macrophytes.After one week of the system operation with intermittent dosing of carbon source,the TN and TP concentrations can be improved from the class V to IV of the GB 3838-2002 standards.
作者
陈婷婷
黄健盛
丁健刚
刘敏
廖伟伶
童启邦
姚源
吕圣红
CHEN Tingting;HUANG Jiansheng;DING Jiangang;LIU Min;LIAO Weiling;TONG Qibang;YAO Yuan;LU Shenghong(Chongqing Academy of Environment Science,Chongqing 401147,China;Chongqing Nan’an District Environmental Monitoring Station,Chongqing 400060,China;Chongqing Environmental Monitoring Center,Chongqing 401147,China)
出处
《三峡生态环境监测》
2018年第1期21-26,共6页
Ecology and Environmental Monitoring of Three Gorges
基金
重庆市社会民生科技创新专项项目(cstc2015shmszx20001)
关键词
生物转笼
湖库
黑臭水体
脱氮除磷
rotating-cage bioreactor
lake
malodorous black water
nitrogen and phosphorus removal
作者简介
陈婷婷（1992—），女，重庆人，助理工程师，主要从事水污染控制研究。E-mail:546510742@qq.com;通信作者：黄健盛（1980—），男，广西人，博士，正高级工程师，主要从事水污染控制研究。E-mail:303982960@qq.com
