多组分钝化剂对重金属钝化、堆肥质量和植物生长的影响

IF 12.4 Q1 ENVIRONMENTAL SCIENCES
Xinxin Li , Yifan Wei , Lijun Wang , Sanjun Jin , Ping Wang , Juan Chang , Qingqiang Yin , Chaoqi Liu , Maolong Li , Yayu Liu , Qun Zhu , Xiaowei Dang , Fushan Lu
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引用次数: 0

摘要

直接在土地上施用传统堆肥可能会因重金属的存在而造成生态风险。为了有效降低堆肥中重金属的生物利用率,研究人员开发了一种由白色念珠菌、腐植酸钠、沸石和凹凸棒石组成的多组分钝化剂,其对堆肥中锌、铜和铁的钝化率分别为 59.28%、86.93% 和 38.95%。在堆肥中添加定制的多组分钝化剂不仅降低了重金属的流动性,还提高了堆肥的质量,并进一步增加了堆肥中降解木质纤维素的有益微生物的数量。随后的施肥结果表明,使用定制的多组分钝化剂发酵的堆肥产品大大改善了大白菜的生长状况,白菜的高度、重量、根长和叶绿素总含量分别显著增加了 97.63%、210.13%、20.42% 和 40.38%。由此可见,定制的多组分钝化剂有望成为重金属钝化、优质堆肥和植物生长的良好添加剂。
本文章由计算机程序翻译,如有差异,请以英文原文为准。

Effects of multi-component passivator on heavy metal passivation, compost quality and plant growth

Effects of multi-component passivator on heavy metal passivation, compost quality and plant growth

Direct land application of conventional compost may cause ecological risks due to the presence of heavy metals. To effectively reduce heavy metal bioavailability in compost, a multi-component passivator comprising Candida utilis, sodium humate, zeolite and attapulgite was developed, which showed passivation rates of 59.28%, 86.93% and 38.95% for zinc (Zn), copper (Cu), and ferrum (Fe), respectively, in compost. The addition of customized multi-component passivator in compost not only reduced the mobility of heavy metals, but also improved the quality of the compost and further increased the abundance of lignocellulose-degrading beneficial microorganisms in compost. Subsequent fertilization results showed that the compost product fermented with customized multi-component passivator greatly improved the growth of Chinese cabbage, with significant increases in height, weight, root length, and total chlorophyll contents of 97.63%, 210.13%, 20.42%, and 40.38%, respectively. It can be concluded that the custom-made multi-component passivator is expected to be a good additive for heavy metal passivation, high-quality compost, and plant growth.

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来源期刊
Resources Environment and Sustainability
Resources Environment and Sustainability Environmental Science-Environmental Science (miscellaneous)
CiteScore
15.10
自引率
0.00%
发文量
41
审稿时长
33 days
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