不同钝化剂对畜禽粪便有机肥重金属铜锌的钝化作用

发布时间：2019-03-04 12:49

【摘要】：以辣椒为供试植物,采用盆栽试验方法,研究生物炭、化学吸附剂和微生物菌剂3种重金属钝化剂对猪粪有机肥中Cu、Zn的钝化效果。结果表明,向有机肥中投加这3种钝化剂会促进辣椒生长,提高辣椒产量;投加不同量不同种类的钝化剂对Cu和Zn表现出不同的钝化效果。除化学吸附剂外,生物炭和微生物菌剂均可不同程度地降低辣椒茎叶中Cu含量,同时这3种钝化剂均可以降低辣椒果实中Cu和Zn的累积量。生物炭处理组S4(投加量1.25%)、化学吸附剂处理组H4(投加量1.25%)、微生物菌剂处理组W2(投加量1.00%)辣椒果实中Cu和Zn含量最低,与对照组相比,Cu含量分别降低了25.91%、17.39%和20.59%,Zn含量分别降低了30.72%、15.96%和28.99%,表现出较好的钝化效果。
[Abstract]:The passivation effect of three heavy metal passivators (biochar, chemical adsorbent and microbial agent) on Cu,Zn in pig manure organic fertilizer was studied by pot experiment with pepper as experimental plant. The results showed that adding these three passivators to organic fertilizer could promote the growth of pepper and increase the yield of pepper, and the passivation effect of Cu and Zn by adding different kinds of passivators was different. In addition to the chemical adsorbents, biochar and microbial agents could reduce the content of Cu in the stems and leaves of capsicum to some extent. At the same time, these three passivators could reduce the accumulation of Cu and Zn in capsicum fruits. S4 (1.25%), H4 (1.25%), W2 (1.00%) and W2 (1.00%) had the lowest contents of Cu and Zn in capsicum fruit, compared with the control group, the control group had the lowest content of SOD and Zn in the biochar treatment group (1.25%), the chemical adsorbent treatment group (H4%) and the microbial treatment group (W2). The content of Cu decreased by 25.91%, 17.39% and 20.59% respectively. The Zn content decreased by 30.72%, 15.96% and 28.99%, respectively, showing a good passivation effect.
【作者单位】：华东理工大学资源与环境工程学院;上海市环境科学研究院;上海市青浦现代农业园区发展有限公司;
【基金】：上海市环境保护局青年基金(编号:沪环科2014-100);上海市环境保护局重大科研项目(编号:沪环科2015-05)
【分类号】：X173;X713

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