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当前位置: 首页 > 文章 > 狐尾藻对生猪养殖场沼液Cu、Zn的富集与净化效果 福建农业学报 2018 (11) 1195-1200
Position: Home > Articles > Cu and Zn Accumulations in Myriophyllum spicatumfor Purification of Pig Farm Biogas Slurry Fujian Journal of Agricultural Sciences 2018 (11) 1195-1200

狐尾藻对生猪养殖场沼液Cu、Zn的富集与净化效果

作  者：
吴晓梅;叶美锋;吴飞龙;林代炎
单  位：
福建省农业科学院农业工程技术研究所
关键词：
狐尾藻;富集;沼液;Cu;Zn
摘  要：
采用室外水培试验,研究在不同水力停留时间(20、40、60d),狐尾藻对生猪养殖场沼液Cu、Zn的富集能力。结果表明:当水力停留时间为60d时,狐尾藻生物量最大,可达1 475.00g,是对照组的7.40倍,其对沼液Cu、Zn的积累量也最大,分别为7.66mg·kg-1和64.18mg·kg-1,且狐尾藻对Zn的富集能力大于Cu;当水力停留时间为40d时,狐尾藻对沼液的净化效果最好,CODCr、氨氮和总磷去除率分别可达92.40%、92.03%、74.39%。试验结束后,狐尾藻体内有机质、氮、磷、钾含量,相比对照组分别提高7.62%～12.57%、30.62%～69.38%、5.88%～12.94%和3.85%～21.15%;狐尾藻体内Cu、Zn含量分别为:6.76～10.78、77.63～130.60mg·kg-1,符合GB26419-2010及我国农业行业标准NY929-2005。因此狐尾藻富集沼液Cu、Zn收割后可以作为青饲料加以利用,净化沼液同时避免二次污染。
译  名：
Cu and Zn Accumulations in Myriophyllum spicatumfor Purification of Pig Farm Biogas Slurry
作  者：
WU Xiao-mei;YE Mei-feng;WU Fei-long;LIN Dai-yan;Aricultural-Engineering Institute,Fujian Academy of Agricultural Sciences;
单  位：
WU Xiao-mei%YE Mei-feng%WU Fei-long%LIN Dai-yan%Aricultural-Engineering Institute,Fujian Academy of Agricultural Sciences
关键词：
Myriophyllum spicatum;;accumulation;;biogas slurry;;Cu;;Zn
摘  要：
The ability of Myriophyllum spicatumto absorb and accumulate Cu and Zn from pig farm biogas slurry was studied.Hydraulic residence time(HRT)of 20,40 and 60dwere applied for the plants in the study.It was found that the maximum biomass of the plants in 40 dof HRT reached 1 475.00 g,which was 7.40 times higher than that of control.More importantly,the Cu and Zn accumulations in the plants were 7.66mg·kg-1 and 64.18mg·kg-1,respectively,which were significantly greater than those in control.The metal removal from the slurry by the plants was at the highest levels when 40 d HRT was applied as well.The reductions on COD,ammonia nitrogen and total phosphorus on the slurry were 92.40%,92.03%and 74.39%,respectively.After the HRT test the plants had increases of 7.62%-12.57%on organic matters,30.62%-69.38%on N,5.88%-12.94%on P,and 3.85%-21.15% on K,as well as contents of 6.76-10.78mg·kg-1 of Cu and 77.63-130.60mg·kg-1 of Zn.The increases of metal contents met the levels set forth by the national GB26419-2010 and the Agricultural Industry Standard of NY929-2005.Furthermore,the harvested M.spicatumcould be used for fodder to effectively avoid the concern of secondary pollution after the biogas slurry purification.

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