HUSCAP logo Hokkaido Univ. logo

Hokkaido University Collection of Scholarly and Academic Papers >
Hokkaido University Sustainability Weeks >
Sustainability Weeks 2010 >
The Second Hokkaido University Sustainability Research Poster Contest >

Development of eco-friendly biodegradable flocclant

Files in This Item:
C6-3.pdf939.09 kBPDFView/Open
Please use this identifier to cite or link to this item:

Title: Development of eco-friendly biodegradable flocclant
Authors: Liu, Xin1 Browse this author
Authors(alt): 劉, 馨1
Issue Date: 24-Oct-2010
Citation: 第2回北海道大学サステナビリティ学生研究ポスターコンテスト = The Second Hokkaido University Sustainability Research Poster Contest. 平成22年10月24日(日) - 11月5日(金). 北海道大学学術交流会館, 札幌市.
Abstract: Separation of soil particles in water is very important in both environment and industry. Recently, chemical flocculants are widely used to improve solid- liquid separation, but they are environmentally undesirable. Thus, extracellular polymers produced by bacteria (bioflocculants) has been a topic of intense research. However, it is deficient in practical application. In our laboratory, a novel bioflocculant, methylated soy protein (MeSP), has been developed and its flocculation performance was tested with kaolin suspensions. The flocculation performance of MeSP was much higher than that of commercial polyaluminum chloride (PAC) in terms of supernatant clarity and floc settling velocity. In freshwater and at a fixed flocculant dosage of I wt%, MeSP reduced the relative absorbance to 0 within I min over a wide pH range, while PAC was effective only at around pH 6. In seawater, MeSP (0.5wt% to 3wt%) reduced the relative absorbance to less than 0.1, while PAC was ineffective.
Description: 「魅力あるポスター賞」受賞
Conference Name: Hokkaido University Sustainability Research Poster Contest
Conference Sequence: 2
Conference Place: Sapporo
Type: conference presentation
Appears in Collections:北海道大学サステナビリティ・ウィーク2010 (Sustainability Weeks 2010) > 第2回北海道大学サステナビリティ学生研究ポスターコンテスト (The Second Hokkaido University Sustainability Research Poster Contest)

Submitter: 劉 馨

Export metadata:

OAI-PMH ( junii2 , jpcoar_1.0 )

MathJax is now OFF:


 - Hokkaido University