环境科学与管理
環境科學與管理
배경과학여관리
ENVIRONMENTAL SCIENCE AND MANAGEMENT
2012年
6期
84-88
,共5页
T型氧化沟%脱氮除磷%低碳源%低C/N生活污水%改造
T型氧化溝%脫氮除燐%低碳源%低C/N生活汙水%改造
T형양화구%탈담제린%저탄원%저C/N생활오수%개조
T type oxidation ditches%denitrification and dephosphorization%low - carbon%low-C/N municipalsewage%modification
详细介绍了T型氧化沟工艺的特征，并考察研究了该工艺处理低碳源生活污水的长期运行效果。研究结果表明，工艺出水COD、BOD5、NH3-N、TN和TP年平均浓度分别为13．9、3．8、0．91、18．80和1．67mg/L，去除率分别为88．99％、94．37％、96．74％、37．57％和41．58％，均能达到相应的排放标准。由于T型氧化沟中以好氧环境为主，缺乏厌氧和缺氧环境以及进水的BOD，／TN值低，工艺对有机物及NH3-N的去除效果较好，但TN和TP去除效果较低。提出了加强工艺脱氮除磷的措施，为同类型污水处理厂改造提供参考。
詳細介紹瞭T型氧化溝工藝的特徵，併攷察研究瞭該工藝處理低碳源生活汙水的長期運行效果。研究結果錶明，工藝齣水COD、BOD5、NH3-N、TN和TP年平均濃度分彆為13．9、3．8、0．91、18．80和1．67mg/L，去除率分彆為88．99％、94．37％、96．74％、37．57％和41．58％，均能達到相應的排放標準。由于T型氧化溝中以好氧環境為主，缺乏厭氧和缺氧環境以及進水的BOD，／TN值低，工藝對有機物及NH3-N的去除效果較好，但TN和TP去除效果較低。提齣瞭加彊工藝脫氮除燐的措施，為同類型汙水處理廠改造提供參攷。
상세개소료T형양화구공예적특정，병고찰연구료해공예처리저탄원생활오수적장기운행효과。연구결과표명，공예출수COD、BOD5、NH3-N、TN화TP년평균농도분별위13．9、3．8、0．91、18．80화1．67mg/L，거제솔분별위88．99％、94．37％、96．74％、37．57％화41．58％，균능체도상응적배방표준。유우T형양화구중이호양배경위주，결핍염양화결양배경이급진수적BOD，／TN치저，공예대유궤물급NH3-N적거제효과교호，단TN화TP거제효과교저。제출료가강공예탈담제린적조시，위동류형오수처리엄개조제공삼고。
Characteristics of T type oxidation ditches process were presented and long - term operation effect of treating low - carbon municipal sewage by the process was investigated. Results showed that annual concentrations of COD, BOD5 , NH3 - N, TN and TP in the effluent of the process were 13.9,3.8,0. 91,18.80 and 1.67 rag/L, respectively. The removal percentages of COD, BOD5 ,NH3 - N, TN and TP were 88. 99 % , 94. 37%, 96. 74%, 37.57% and 41.58% respectively, which could meet the discharge standards. Because the environment in T Type Oxidation Ditches was mainly aerobic, the lack of anoxic and anaero- bic environment and the BODJTN of inlet was low, the process had high removal percentage of organic matter and NH3 - N, but low removal percentage of TN and TP. This proposed measures to strengthen the denitrification and dephosphorization in T type ox- idation ditches process, providing reference to the improvement of the same kind wastewater treatment plants.
