Production of a bioflocculant from Pseudomonas veronii L918 using the hydrolyzate of peanut hull and its application in the treatment of ash-flushing wastewater generated from coal fired power plant.

Abstract

In this study, bioflocculant produced by Pseudomonas veronii L918 was applied to treat ash-flushing wastewater. The strain L918 could convert the hydrolyzate of peanut hull into bioflocculant, which can effectively reduce the production cost of bioflocculant. The yield of 3.39g/L bioflocculant MBF-L918 was achieved when 300mL/L peanut hull hydrolyzate was used as carbon source. The bioflocculant MBF-L918 contains 77.14% polysaccharides and 4.84% proteins, and the molecular weight (MW) of MBF-L918 is 24.77kDa. Furthermore, MBF-L918 showed good flocculating efficiency of 92.51% to ash-flushing wastewater when 2.83mg/L MBF-L918 was added, and thus achieved the recycling of ash-flushing wastewater. This study reported for the first time that the bioflocculant was produced using peanut hull hydrolyzate and effectively applied in the treatment of coal ash-flushing wastewater.

• Authors: Weijie Liu, Yan Hao, Jihong Jiang, Aihua Zhu, Jingrong Zhu, Zhen Dong
• Journal: Bioresource technology (Bioresour Technol) Vol. 218 Pg. 318-25 (Oct 2016) ISSN: 1873-2976 [Electronic] England
• PMID: 27372012 (Publication Type: Journal Article)
• Copyright: Copyright © 2016 Elsevier Ltd. All rights reserved.

Chemical References

• Coal
• Waste Water
• Carbon

Topics

• Arachis (chemistry)
• Carbon (metabolism)
• Coal
• Flocculation
• Power Plants
• Pseudomonas (metabolism)
• Waste Disposal, Fluid (methods)
• Wastewater (chemistry, microbiology)
• Water Purification (methods)