农业科学与技术(英文版)
農業科學與技術(英文版)
농업과학여기술(영문판)
AGRICULTURAL SCIENCE & TECHNOLOGY
2011年
3期
461-465
,共5页
垂直流湿地%生活污水%脱氮除磷%水力停留时间
垂直流濕地%生活汙水%脫氮除燐%水力停留時間
수직류습지%생활오수%탈담제린%수력정류시간
Vertical flow wetlands%Domestic wastewater%Removal of nitrogen and phosphorus%Hydraulic retention time
采取间歇式进水和垂直潜流湿地结合的方法处理实际生活污水,构建了4个人工湿地,即菖蒲湿地、芦苇湿地、混栽湿地(菖蒲和芦苇)及空白对照湿地,针对不同水力停留时间(HRT)及植物种属进行研究.结果表明:总氮(TN)和氨氮(NH+4-N)的去除,种植植物的湿地以HRT为7 d处理效果最好,TN和NH+4-N去除率最高分别达到99.60%和99.58%.空白湿地中,TN去除率以HRT为6 d和NH+4-N去除率以HRT为5 d为最好,最高分别达到87.90%、91.80%.对总磷(TP)的去除,4个湿地均以HRT为6 d为最佳,去除率均高于93.00%.通过对不同植物的研究,发现植物床对氮的去除效果优于空白湿地,芦苇湿地和混栽湿地的处理效果均优于菖蒲湿地.
採取間歇式進水和垂直潛流濕地結閤的方法處理實際生活汙水,構建瞭4箇人工濕地,即菖蒲濕地、蘆葦濕地、混栽濕地(菖蒲和蘆葦)及空白對照濕地,針對不同水力停留時間(HRT)及植物種屬進行研究.結果錶明:總氮(TN)和氨氮(NH+4-N)的去除,種植植物的濕地以HRT為7 d處理效果最好,TN和NH+4-N去除率最高分彆達到99.60%和99.58%.空白濕地中,TN去除率以HRT為6 d和NH+4-N去除率以HRT為5 d為最好,最高分彆達到87.90%、91.80%.對總燐(TP)的去除,4箇濕地均以HRT為6 d為最佳,去除率均高于93.00%.通過對不同植物的研究,髮現植物床對氮的去除效果優于空白濕地,蘆葦濕地和混栽濕地的處理效果均優于菖蒲濕地.
채취간헐식진수화수직잠류습지결합적방법처리실제생활오수,구건료4개인공습지,즉창포습지、호위습지、혼재습지(창포화호위)급공백대조습지,침대불동수력정류시간(HRT)급식물충속진행연구.결과표명:총담(TN)화안담(NH+4-N)적거제,충식식물적습지이HRT위7 d처리효과최호,TN화NH+4-N거제솔최고분별체도99.60%화99.58%.공백습지중,TN거제솔이HRT위6 d화NH+4-N거제솔이HRT위5 d위최호,최고분별체도87.90%、91.80%.대총린(TP)적거제,4개습지균이HRT위6 d위최가,거제솔균고우93.00%.통과대불동식물적연구,발현식물상대담적거제효과우우공백습지,호위습지화혼재습지적처리효과균우우창포습지.
The combination method of intermittent influent and vertical flow wetlands (VFW) was used in the test to treat the domestic wastewater. Four artificial wetlands including Typha latifolia wetland, Phragmites australis ( P. H. ) wetland, polyculture wetlands ( Typha latifolia and Phragmites australis) and non-vegetation wetland were established in the test. The effects of hydraulic retention time (HRT) and plant species on pollutants removal efficiencies were studied. The results showed that when HRT =7, the treatment efficiencies of wetlands with plants for the removal of TN and NH+4-N were up to 99.65% and 99.58%, respectively. For the control wetland, TN removal efficiency was up to 87.9%when HRT were 6 days, and NH+4-N removal efficiency was up to 91.8% when HRT were 5 days. TP removal efficiencies of four wetlands were higher than 93% when HRT was 6 days. Through the studies on different plants, it was found that vegetation wetlands had better nitrogen removal efficiency than non-vegetation wetland. The treatment efficacy of Phragmites australis wetland and polyculture wetland was better than Typha latifolia wetland.