Methylated mud snail protein as a bio-flocculant for high turbidity wastewater treatment

NWIPB OpenIR

	Methylated mud snail protein as a bio-flocculant for high turbidity wastewater treatment
	Mao, Shaohui; Xu, Xiaohui; Zhang, Linjiang; Bai, Bo; Hu, Na; Wang, Honglun
	2021
发表期刊	WATER SCIENCE AND TECHNOLOGY
卷号	84 期号:3
摘要	The authors reported a potential candidate methylated mud snail protein (MeMsp) as an effective and eco-friendly flocculant to treat the high turbidity wastewater. MeMsp was obtained by extraction of mud snail protein (Msp) through isoelectric precipitation (PSC-IP) and then methylated via the esterification with side-chain carboxyl. Structural characterization of FT-IR, Zeta potential and elemental analysis were carried out and further confirmed the successful of the methylation Flocculation experiments with kaolin suspension simulated wastewater indicated that MeMsp-24 displayed more excellent flocculation efficiency at a low dosage. At the optimum dosage 27 mg/L, the maximum clarification efficiency of MeMsp-24 was 97.46% under pH 7.0. Furthermore, MeMsp-24 exhibited a wide flocculation window in the pH range of 1.0-9.0, and faster sedimentation velocity and larger flocs size. Meanwhile, MeMsp-24 exhibited 92.12% clarification efficiency in treating railway tunnel construction effluent. The flocculation kinetic and mechanism analysis revealed that the most effective particle collision occurred at the optimal dosage, with charge neutralization and adhesion played irreplaceable roles in different environment, respectively. Therefore, through the extraction and methylation modification, the MeMsp could be a promising eco-friendly flocculant for high turbidity wastewater treatment.
关键词	bio-flocculant high turbidity wastewater kaolin methylation mud snail protein
文献类型	期刊论文
条目标识符	http://210.75.249.4/handle/363003/60775
专题	中国科学院西北高原生物研究所
推荐引用方式 GB/T 7714	Mao, Shaohui,Xu, Xiaohui,Zhang, Linjiang,et al. Methylated mud snail protein as a bio-flocculant for high turbidity wastewater treatment[J]. WATER SCIENCE AND TECHNOLOGY,2021,84(3).
APA	Mao, Shaohui,Xu, Xiaohui,Zhang, Linjiang,Bai, Bo,Hu, Na,&Wang, Honglun.(2021).Methylated mud snail protein as a bio-flocculant for high turbidity wastewater treatment.WATER SCIENCE AND TECHNOLOGY,84(3).
MLA	Mao, Shaohui,et al."Methylated mud snail protein as a bio-flocculant for high turbidity wastewater treatment".WATER SCIENCE AND TECHNOLOGY 84.3(2021).