环境科学与管理
環境科學與管理
배경과학여관리
ENVIRONMENTAL SCIENCE AND MANAGEMENT
2012年
5期
72-74
,共3页
人工湿地%生活污水%水力负荷
人工濕地%生活汙水%水力負荷
인공습지%생활오수%수력부하
artificial wetland%domestic sewage%hydraulic load
在连续运行条件下,采用水平潜流人工湿地净化低浓度的生活污水,考察了其净化效果。结果表明,该系统能够有效的降低生活污水中的COD、TN、TP,适合于城镇生活污水的处理。在0.1、0.2 m^3/（m^2.d）的水力负荷条件下,系统较容易出现死水区;当0.3 m3/（m^2·d）的水力负荷条件下,水流呈推流状态,有效容积和水力效率得到提高,去除率分别为90.3%、86.6%和96.7%。试验表明,适当增加水力负荷,有利于污染物的去除。
在連續運行條件下,採用水平潛流人工濕地淨化低濃度的生活汙水,攷察瞭其淨化效果。結果錶明,該繫統能夠有效的降低生活汙水中的COD、TN、TP,適閤于城鎮生活汙水的處理。在0.1、0.2 m^3/（m^2.d）的水力負荷條件下,繫統較容易齣現死水區;噹0.3 m3/（m^2·d）的水力負荷條件下,水流呈推流狀態,有效容積和水力效率得到提高,去除率分彆為90.3%、86.6%和96.7%。試驗錶明,適噹增加水力負荷,有利于汙染物的去除。
재련속운행조건하,채용수평잠류인공습지정화저농도적생활오수,고찰료기정화효과。결과표명,해계통능구유효적강저생활오수중적COD、TN、TP,괄합우성진생활오수적처리。재0.1、0.2 m^3/（m^2.d）적수력부하조건하,계통교용역출현사수구;당0.3 m3/（m^2·d）적수력부하조건하,수류정추류상태,유효용적화수력효솔득도제고,거제솔분별위90.3%、86.6%화96.7%。시험표명,괄당증가수력부하,유리우오염물적거제。
The subsurface flow artificial wetland under continuous-flow operation condition was used for purifying low concentration domestic sewage.The purification efficiency and influencing factors were investigated.The results show that the system which is suitable for urban domestic sewage treatment can remove the organic substance,nitrogen and phosphorus.Under hydraulic load of 0.3 m^3/（m^2·d）,the removal rates of COD,TN and TP are 90.3%,86.6% and 96.7%,respectively.The water flow is in the plug-flow state and can obtain higher effective capacity and flow rate comparing with the hydraulic load of 0.1,0.2 m3/（m^2·d）when dead zones easily appeared.Increasing the hydraulic load is beneficial to contamination removal.
