Influence of inoculating white-rot fungi on organic matter transformations and mobility of heavy metals in sewage sludge based composting.
Influence of inoculating white-rot fungi on organic matter transformations and mobility of heavy metals in sewage sludge based composting.
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DOI：
10.1016/j.jhazmat.2017.10.017
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发表时间：
2018-02
影响因子：
13.6
通讯作者：
Chaosheng Zhang;Ying Xu;Mei-hua Zhao;Hongwei Rong;K. Zhang
中科院分区：
文献类型：
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作者：
Chaosheng Zhang;Ying Xu;Mei-hua Zhao;Hongwei Rong;K. Zhang
将白腐菌（Phanerochaete chrassporium）接种到污水污泥堆肥中。研究了其对有机质转化和重金属（Zn、Pb、Cu、Ni）迁移率的影响。详细取样测定了腐植酸（HE）、腐植酸（HAs）、黄腐酸（FAs）、腐植酸（humin）中C的含量和重金属的分布，包括酸交换部分（AE）、可还原部分（RED）、氧化部分（OXI）和残留部分（RES）。在本研究中，我们发现接种后HE、HAs明显升高，水解人蛋白明显降低。在接种反应器中，Zn、Pb、Cu和Ni的稳定化率(OXI + RES)/(AE + RED)分别比接种反应器高20.31%、7%、14.3%和19.79%。此外，重金属组分的变化可以用有机变量来解释。本研究结果表明，黄孢原毛革菌通过激发腐殖质的形成来钝化重金属。
White-rot fungi,Phanerochaete chrysosporiumwas inoculated to sewage sludge composting. Its effect on transformation of organic matter and mobility of heavy metals (Zn, Pb, Cu, and Ni) was studied. Detailed sampling was performed to measure C contents in humic extracts (HE), humic acids (HAs), fulvic acids (FAs), humin and distribution of heavy metals, including acid exchangeable fraction (AE), reducible fraction (RED), oxidization fraction (OXI) and residual fraction (RES). In our study, it is evident that the HE, HAs increased obviously and hydrolyzed humin decreased markedly in inoculation. The stabilization rate ((OXI + RES)/(AE + RED)) of Zn, Pb, Cu, and Ni was 20.31%, 7%, 14.3% and 19.79% higher in inoculating reactor. Additionally, the changes of heavy metals fractions could be explained by the organic variables. The results of this study demonstrated thatPhanerochaete chrysosporiumpassivates the heavy metal by provoking the formation of humus.