Ceramsite preparation from sea sludge with sewage sludge biochar and its environmental risk assessment

被引：0

作者：

Li, Jie ^{[1
,2
]}

Yu, Guangwei ^{[1
]}

Pan, Lanjia ^{[1
,2
]}

Li, Chunxing ^{[1
]}

Xie, Shengyu ^{[1
,2
]}

Wang, Gang ^{[1
,2
]}

Wang, Yin ^{[1
]}

机构：

[1] Chinese Acad Sci, Inst Urban Environm, Key Lab Urban Pollutant Convers, Xiamen 361021, Peoples R China

[2] Univ Chinese Acad Sci, Beijing 100049, Peoples R China

来源：

INTERNATIONAL CONFERENCE ON ENERGY ENGINEERING AND ENVIRONMENTAL PROTECTION (EEEP2017) | 2018年 / 121卷

关键词：

HEAVY-METALS; HYDROTHERMAL TREATMENT; STABILIZATION; INCINERATION; SPECIATION; MIGRATION;

D O I：

10.1088/1755-1315/121/3/032035

中图分类号：

TE [石油、天然气工业]; TK [能源与动力工程];

学科分类号：

0807 ; 0820 ;

摘要：

Ceramsite were produced from sea sludge (SS) by adding different percentage of sewage sludge biochar (SSB). The characteristics of ceramsite including micrograph and elementary composition were analyzed. In addition, the heavy metals (HMs) fractions, leaching behaviour and potential environmental risk were also investigated. The microstructure of the ceramsite was slit pores and the main elements of the ceramsite were Si, Al and O. The residual fraction (F4) of Cu, Cr and Cd in ceramsite with 100% SS (SS100) reached the maximum (100%, 99% and 100%, respectively), while F4 of Zn and Ni in ceramsite with 80% SS and 20% SSB (SS80) reached the top value of 99.5% and 98%. Moreover, the HMs of feedstock can be immobilized after sintering as ceramsite and the leached amounts of HMs in all ceramsite were much lower than that stated by GB 5085.3-2007. Furthermore, ceramsite preparation from sea sludge with sewage sludge biochar will not bring HMs contamination and potential ecological risk.

引用

页数：7

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