干旱区生态环境知识资源中心(Arid): Improving sand wind erosion resistance using renewable agriculturally derived biopolymers

Arid

DOI	10.1016/j.aeolia.2020.100663
	Improving sand wind erosion resistance using renewable agriculturally derived biopolymers
	Lemboye, Kehinde; Almajed, Abdullah; Alnuaim, Ahmed; Arab, Mohamed; Alshibli, Khalid
通讯作者	Almajed, A (corresponding author), King Saud Univ, Coll Engn, Dept Civil Engn, POB 800, Riyadh 11421, Saudi Arabia.
来源期刊	AEOLIAN RESEARCH
ISSN	1875-9637
EISSN	2212-1684
出版年	2021
卷号	49
英文摘要	Dust control and air quality are major environmental concerns, especially in arid regions. Several techniques have been developed in the past to control dust; however, several weaknesses of these techniques, including being short term, having a high cost, and toxicity in several cases, have been reported. This paper investigates the use of agriculturally derived (non-toxic) biopolymers to stabilize sand against wind-induced erosion. Three naturally occurring biopolymers, namely, acacia gum (AC), sodium alginate (SA), and pectin (PT), were used as stabilizing agents at varying concentrations. Wind tunnel laboratory experiments and penetration tests were used to evaluate the erosion resistance and the soil surface crust strength of sand treated with these biopolymers. The experimental results showed that the application of the proposed biopolymers, in general, significantly increased the resistance of dune sand exposed to wind speeds of up to 16.2 m/s compared to untreated sand or sand treated with water. The crust penetration resistance for soil treated with AC was observed to increase with increasing biopolymer concentration, whereas that of soil treated with SA and PT was found to reach a maximum at a concentration of 2%. Soil treated with SA and PT biopolymers showed remarkable resistance to wetting?drying cycles. However, soil treated with the AC biopolymer only showed durable resistance to wetting?drying cycles at concentrations of 3% and 5%. At a concentration of less than 3%, the soil loss rate was higher. Scanning electron microscopy images revealed that the sand particles were effectively bonded at their contacts and that the pores were filled with the biopolymers, which improved the crack and erosion resistance of the treated sand against wind erosion.
英文关键词	Strength Biopolymers Degradation Resistance Soil loss Erosion rate
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000632638200002
WOS类目	Geography, Physical
WOS研究方向	Physical Geography
来源机构	King Saud University
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/349283
作者单位	[Lemboye, Kehinde; Almajed, Abdullah; Alnuaim, Ahmed] King Saud Univ, Coll Engn, Dept Civil Engn, POB 800, Riyadh 11421, Saudi Arabia; [Arab, Mohamed] Univ Sharjah, Coll Engn, Dept Civil & Environm Engn, POB 27272, Sharjah, U Arab Emirates; [Arab, Mohamed] Mansoura Univ, Fac Engn, Struct Engn Dept, Mansoura, Egypt; [Alshibli, Khalid] Univ Tennessee, Dept Civil & Environm Engn, 325 John Tickle Bldg, Knoxville, TN 37996 USA
推荐引用方式 GB/T 7714	Lemboye, Kehinde,Almajed, Abdullah,Alnuaim, Ahmed,et al. Improving sand wind erosion resistance using renewable agriculturally derived biopolymers[J]. King Saud University,2021,49.
APA	Lemboye, Kehinde,Almajed, Abdullah,Alnuaim, Ahmed,Arab, Mohamed,&Alshibli, Khalid.(2021).Improving sand wind erosion resistance using renewable agriculturally derived biopolymers.AEOLIAN RESEARCH,49.
MLA	Lemboye, Kehinde,et al."Improving sand wind erosion resistance using renewable agriculturally derived biopolymers".AEOLIAN RESEARCH 49(2021).