西洋菜净化养猪废水研究
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2020-04-10 21:11:18
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安徽农业科学,JournalofAnhuiA.Sci.2009,37(23):11115—11116责任编辑张杨林责任校对汪伟西洋菜净化养猪废水研究何江,利锋,,诸振兵,张业基,梁桂生(1.嘉应学院环境512程研究所,广东梅'ktt514015;2.华南理工大学环境科学与工程学院,广东广州510006)摘要[目的]探究西洋菜净化养猪废水的效果。[方法】养猪废水经三级沼气池处理后,进入调节池,从中取出沼液用于盆栽西洋菜,测定各项水质指标和采后的西洋菜重量,研究采用西洋菜对养猪场沼气池出水进行净化的效果。[结果]西洋莱在使用沼液栽培后迅速生长,其生长情况明显好于河水栽培对照组,且试验10d后西洋菜生物量(干重)为初种时的2.81倍,20d后为初种时的6.76倍。西洋菜对CODBODNH-N、PO:一·P均具有良好的净化效果,试验20d后COD的去除率为87.0%~92.7%,NH4+.N的去除率为93.7%一98.8%,PO:一一P的去除率为62.5%~73.3%,BOD的去除率为88.O%~94.3%。[结论]沼液里的养分为西洋菜的迅速生长提供了有利条件。西洋菜耐污净化能力强,能够适应浓度较高的沼液,在沼液中生长良好,利用沼液培育西洋菜可行。关键词西洋菜;养猪废水;沼液中图分类号S634.9文献标识码A文章编号o517—6611(2009)23—11l15一o2InitialExperimentonPu~yingSwineWastewaterwithNasturtiumOfficinaleR.Br.HEJiangetal(InstituteofEnvironmentalEngineering,JiayingCollege,Meizhou,Guangdong514015)AbstractlObjectiveITheresearchaimedtoprobeintotlleeffectofswinewastewaterpurificationwithNasturtiumoj3~cinaleR.Br.『Meth.odJTheswinewastewaterwastreatedthrough3一levelbiogasdigesterandthenflewintoregularingpoo1.andfbebiogasslurrywastakenfromthepoolandusedforpotN.ofwinate.eachwaterquali~indexandpickedN.offwinaleweightweredetermined,andtheefectofN.qknaleonpurifyingtheefluentfrombiogasdigesterofpiggerywasstudied.[Resflt]Theoficinalegrewrapidlywithbiogasslurrycuhiva—tion,itsgrowthstatewasobviouslybetterthanthatofthecontrolgroupwithriverwater,moreover,thebiomass(dryweight)ofoftcindeafter10dexperimentwas2.81timesoftheinitialplantingones。and6.76timesoftl】einitialplmatingones20dlater.o3~cinatehadgoodpurificationefectonallCOD,BOD5,NH4+一N,P0;一一P,after20dtest,theremovalratewas87.0%一92.7%forCOD,93.7%一98.8%forNH一N.for62.5%一73.3%PO:一P,88.0%一94.3%forBOD.IConclusionIThenutrientiubiogasslurrysuppliedadvan.tageforrapidgrowthofMoftcinale.Moftcinalehadpowerfulcapabilityofstainresistanceandpurificationlitcouldadaptthebiogasslurrywithhighconcn.andgrewwellinslurry.sothatitwaspossibletoutilizebiogasslurryforN.ofwinalecultivation.KeywordsNasturtiumoficinaleR.Br.;Swinewastewater;Biogasslurry随着我国畜禽养殖业的迅速发展,养殖废水污染问题日渐突出。养殖废水属于高浓度有机废水,处理难度大、处理费用高。采用沼气池处理养猪废水是一种较好的办
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