CAJ | 학술논문

[目的]明确浮萍净化污水TN和TP的特点,筛选高效净化氮磷有机污水的浮萍优化品种.[方法]从扬州市和昆山市各采样点选取的当地3种有代表性的浮萍品种为供试材料,以经稀释5倍、10倍的牛场厌氧废水为供试污水,设置5种不同浮萍对2种不同浓度污水的10组净化处理,在实验室条件下考察了不同浮萍品种对不同浓度污水氮和磷的净化效果.[结果]污水TN和TP浓度随浮萍处理时间(0～10 d)增加而持续降低;紫萍属浮萍对TN和TP的净化能力优于浮萍属浮萍;浮萍对稀释5倍的供试污水TN和TP的最大去除率分别为71.14%和81.00%;浮萍对稀释10倍的供试污水TN和TP的最大去除率分别为92.18%和91.33%.[结论]紫萍属浮萍可作为适合长江三角洲地区的高效净化氮磷有机污水的浮萍优化品种.
[목적]명학부평정화오수TN화TP적특점,사선고효정화담린유궤오수적부평우화품충.[방법]종양주시화곤산시각채양점선취적당지3충유대표성적부평품충위공시재료,이경희석5배、10배적우장염양폐수위공시오수,설치5충불동부평대2충불동농도오수적10조정화처리,재실험실조건하고찰료불동부평품충대불동농도오수담화린적정화효과.[결과]오수TN화TP농도수부평처리시간(0～10 d)증가이지속강저;자평속부평대TN화TP적정화능력우우부평속부평;부평대희석5배적공시오수TN화TP적최대거제솔분별위71.14%화81.00%;부평대희석10배적공시오수TN화TP적최대거제솔분별위92.18%화91.33%.[결론]자평속부평가작위괄합장강삼각주지구적고효정화담린유궤오수적부평우화품충.
[Objective]The study aimed to definite the characters of duckweed for purifying TN and TP in sewage and screen the optimized duckweed variety that could purify N and P effectively in organic sewage. [Method]With 3 kinds of representative local duckweed varieties selected from the each sample place in Yangzhou City and Kunshan City resp. as the tested materials and the anaerobic wastewater diluted at 5 times and 10 times from the cattle Farm as the tested sewage,10 groups of purification treatments matching with 5 different duckweeds on 2 concn. of sewage were set up to investigate the effect of different duckweed variety on the purification effect of N and P in sewage with different concn. under lab condition. [Result]TN and TP concn. in the sewage were decreased constantly with the increase of duckweed treating time in 0-10 d. The purification ability of Spirodela Schleid on TN and TP was higher than that of Lemna L. The maximal removal rates of duckweed on TN and TP in sewage diluted at 5 times were 71.14% and 81.00% resp. and that in the sewage diluted 10 times were 92.18% and 91.33% resp. [Conclusion]Spirodela Schleid could be taken as the optimized duckweed variety that was suitable to purify N and P effectively in organic sewage in Yangtze River delta region.