干旱区生态环境知识资源中心(Arid): Method for solidifying desert sands with enzyme-catalysed mineralization

Arid

DOI	10.1002/ldr.3499
	Method for solidifying desert sands with enzyme-catalysed mineralization
	Miao, Linchang; Wu, Linyu; Sun, Xiaohao; Li, Xia; Zhang, Jizhou
通讯作者	Miao, LC
来源期刊	LAND DEGRADATION & DEVELOPMENT
ISSN	1085-3278
EISSN	1099-145X
出版年	2020
卷号	31 期号:11 页码:1317-1324
英文摘要	Sandstorms have been recognized as severe natural disasters worldwide and are currently occurring with increasing frequently due to global warming and land desertification. This study aims to mitigate their development and combat erosion caused by sandstorms and wind by improving sand-surface stability via enzyme-catalysed mineralization. It is an environment-friendly method. The novelty of the reported enzymatically induced carbonate precipitation (EICP) lies in the usage of an enzyme catalyst extracted from soybeans. In contrast to the commonly used method of microbial-induced carbonate precipitation, which is active at room temperatures between 20 and 30 degrees C, EICP achieves high production efficiency at broader temperatures (ranging from 10 to 70 degrees C). Four methods in appendix to EICP were chosen to solidify desert sands at the test site. Polyacrylamide (PAM) is a harmless and nonionic macromolecular flocculating agent, which forms a hydrogel network in desert sands and has a synergistic effect with EICP. An innovative method combined EICP and PAM and was used to solidify desert sand at a field trial site, realizing high-performance. Solidifying desert sand field tests demonstrated that the solidification strength of EICP+PAM is 6.0-7.0% higher compared with the EICP method alone under identical conditions. This method could obtain higher resistance for strong wind erosion.
英文关键词	enzymatically induced carbonate precipitation calcium carbonate combat sandstorms desert sand polyacrylamide
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000547877200001
WOS关键词	CARBONATE PRECIPITATION ; GRAZING EXCLUSION ; ASIAN DUST ; CEMENTATION ; EROSION ; SOILS
WOS类目	Environmental Sciences ; Soil Science
WOS研究方向	Environmental Sciences & Ecology ; Agriculture
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/325024
作者单位	[Miao, Linchang; Wu, Linyu; Sun, Xiaohao] Southeast Univ, Inst Geotech Engn, Nanjing 210096, Jiangsu, Peoples R China; [Li, Xia] Southeast Univ, Sch Civil Engn, Nanjing, Peoples R China; [Zhang, Jizhou] China Design Grp Co Ldt, Nanjing, Peoples R China
推荐引用方式 GB/T 7714	Miao, Linchang,Wu, Linyu,Sun, Xiaohao,et al. Method for solidifying desert sands with enzyme-catalysed mineralization[J],2020,31(11):1317-1324.
APA	Miao, Linchang,Wu, Linyu,Sun, Xiaohao,Li, Xia,&Zhang, Jizhou.(2020).Method for solidifying desert sands with enzyme-catalysed mineralization.LAND DEGRADATION & DEVELOPMENT,31(11),1317-1324.
MLA	Miao, Linchang,et al."Method for solidifying desert sands with enzyme-catalysed mineralization".LAND DEGRADATION & DEVELOPMENT 31.11(2020):1317-1324.