利用人工湿地栽种水生作物对沼液进行无害化消解  

Preliminary study on harmless digestion of biogas slurry by using aquatic plants grown on artificial wetland

作　　者：朱凤香[1] 王卫平[1] 陈晓旸[1] 洪春来[1] 吴传珍[1] 薛智勇[1] 

机构地区：[1]浙江省农业科学院环境资源与土壤肥料研究所,浙江杭州310021

出　　处：《浙江农业学报》2011年第2期364-368,共5页Acta Agriculturae Zhejiangensis

基　　金：国家科技重大专项(2008ZX07101-006);浙江省"三农五方"项目(SN200813);浙江省重点项目(2008C12045-1)

摘　　要：以茭白、莲藕和水稻等水生作物全生育期对沼液进行消解净化处理,试验表明,1 hm2莲藕池塘在1个全生育期可消纳净化沼液2 475 t,所得莲藕符合NY5238-2005无公害食品水生蔬菜的要求;不同水生作物净化沼液试验表明,按495 t·hm-2的灌溉量,茭白和莲藕只需7 d时间消解净化就可符合国家GB18596-2001《畜禽养殖业污染物排放标准》要求,水稻需要14 d,而无作物的空白处理则需21 d。The harmless digestion of biogas slurry by water bamboo,lotus root and rice crops on wetland was studied.The results showed that 1 hm2 pond of lotus roots could purify 2 475 t biogas slurry in a whole growth period.The lotus roots harvested from the pond met the standards of NY5238-2005 pollution-free foods of aquatic vegetables.Under the irrigation amount of 495 t·hm-2,the digestion time of water bamboo,lotus root and rice was 7,7 and 14 d,respectively,which was in accord with the standard of livestock emission standards for livestock farming industry for national GB18596-2001;meanwhile,the control treatment without any plants was 21 d.

关 键 词：沼液 茭白 莲藕 水稻 水质 

分 类 号：X173[环境科学与工程—环境科学]