贵州农业科学
貴州農業科學
귀주농업과학
GUIZHOU AGRICULTURAL SCIENCES
2014年
12期
217-220
,共4页
杨波%汤洁%李海毅%侯克怡%胡佳欣
楊波%湯潔%李海毅%侯剋怡%鬍佳訢
양파%탕길%리해의%후극이%호가흔
陆生草本植物%TN%TP%COD%净化率
陸生草本植物%TN%TP%COD%淨化率
륙생초본식물%TN%TP%COD%정화솔
terrestrial herbaceous plant%TN%TP%COD%purification rate
为辽河流域河岸缓冲带生态建设和面源污染治理提供理论依据,采用盆栽模拟法,以蛭石为基质,研究了紫花苜蓿、白三叶、黑麦草、高羊茅和早熟禾等草本植物对污水中 TN、TP 和 COD 的净化效果。结果表明:不同草本植物对 TN、TP 和 COD 等污染物均表现出较好的净化效果,随着生长时间的延长,对其净化率呈下降趋势。不同草本植物,对 TN 的净化效果依次为紫花苜蓿>白三叶>高羊茅>黑麦草>早熟禾,对 TP 的净化效果依次为白三叶>高羊茅>黑麦草>紫花苜蓿>早熟禾,对 COD 的净化效果依次为高羊茅>白三叶>黑麦草>紫花苜蓿>早熟禾。第35天时,紫花苜蓿和白三叶对 TN 的净化效果较好,净化率分别为26.80%和24.99%;白三叶和高羊茅对 TP 的净化效果较好,净化率分别为66.28%和65.48%;高羊茅和白三叶对 COD 的净化效果较好,净化率分别为36.85%和34.46%。
為遼河流域河岸緩遲帶生態建設和麵源汙染治理提供理論依據,採用盆栽模擬法,以蛭石為基質,研究瞭紫花苜蓿、白三葉、黑麥草、高羊茅和早熟禾等草本植物對汙水中 TN、TP 和 COD 的淨化效果。結果錶明:不同草本植物對 TN、TP 和 COD 等汙染物均錶現齣較好的淨化效果,隨著生長時間的延長,對其淨化率呈下降趨勢。不同草本植物,對 TN 的淨化效果依次為紫花苜蓿>白三葉>高羊茅>黑麥草>早熟禾,對 TP 的淨化效果依次為白三葉>高羊茅>黑麥草>紫花苜蓿>早熟禾,對 COD 的淨化效果依次為高羊茅>白三葉>黑麥草>紫花苜蓿>早熟禾。第35天時,紫花苜蓿和白三葉對 TN 的淨化效果較好,淨化率分彆為26.80%和24.99%;白三葉和高羊茅對 TP 的淨化效果較好,淨化率分彆為66.28%和65.48%;高羊茅和白三葉對 COD 的淨化效果較好,淨化率分彆為36.85%和34.46%。
위료하류역하안완충대생태건설화면원오염치리제공이론의거,채용분재모의법,이질석위기질,연구료자화목숙、백삼협、흑맥초、고양모화조숙화등초본식물대오수중 TN、TP 화 COD 적정화효과。결과표명:불동초본식물대 TN、TP 화 COD 등오염물균표현출교호적정화효과,수착생장시간적연장,대기정화솔정하강추세。불동초본식물,대 TN 적정화효과의차위자화목숙>백삼협>고양모>흑맥초>조숙화,대 TP 적정화효과의차위백삼협>고양모>흑맥초>자화목숙>조숙화,대 COD 적정화효과의차위고양모>백삼협>흑맥초>자화목숙>조숙화。제35천시,자화목숙화백삼협대 TN 적정화효과교호,정화솔분별위26.80%화24.99%;백삼협화고양모대 TP 적정화효과교호,정화솔분별위66.28%화65.48%;고양모화백삼협대 COD 적정화효과교호,정화솔분별위36.85%화34.46%。
The purification effect of Medicago sativa ,Trifolium repens ,Lolium perenne ,Festuca arundinacea and Poa pratensis on TN,TP and COD in sewage was studied by using potting simulation method based on vermiculite to provide the theoretical basis for ecological construction and non-point source pollution management of riverside buffer zone along Liaohe River Basin.The results showed that 5 tested herbaceous plants all have good purification effect on TN,TP and COD in sewage,and the purification rate show a declining trend with elongation of their growth time.The TN,TP and COD purification effect of 5 tested herbaceous plants is Medicago sativa > Trifolium repens .> Festuca arundinacea > Lolium perenne > Poa pratensis ,Trifolium repens > Festuca arundinacea > Lolium perenne > Medicago sativa > Poa pratensis .and Festuca arundinacea > Trifolium repens > Lolium perenne > Medicago sativa >Poa pratensis respectively .The TN purification rate of Medicago sativa and Trifolium repens can reach 26.80% and 24.99 after 35 d respectively.The TP purification rate of Trifolium repens and Festuca arundinacea is up to 66.28% and 65.48% after 35d separately.The COD purification rate of Festuca arundinacea and Trifolium repens is 36.85% and 34.46% after 35 d respectively.