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http://dx.doi.org/10.11001/jksww.2015.29.2.251

Experimental study on feasibility test for removing particles in air scouring membrane backwash water with metal membrane  

Park, No-Suk (Gyeongsang National University)
Yoon, Sukmin (Gyeongsang National University)
Moon, Yong-Taik (K-water Institute)
Lee, Sun-Ju (K-water Institute)
Park, Sunghyuk (Korean Institute of Industrial Technology)
Publication Information
Journal of Korean Society of Water and Wastewater / v.29, no.2, 2015 , pp. 251-259 More about this Journal
Abstract
The main objective of this research is to study feasibility for applying metal membrane to remove particles from air scouring membrane backwash water. Also, the research was conducted to investigate the influence of polyamine coagulation on floc growth in membrane backwash water as pretreatment for removal particles. From the results of experiments for evaluating the influence of polyamine coagulation on floc growth, it was investigated that particles in the rage of $2{\sim}50{\mu}m$ grew up to $30{\sim}5,000{\mu}m$. In addition, all six metal membranes showed lower removal efficiency, which was 0.87~13.89%, in the case of no polyamine coagulant. On the other hand, in the case of injecting polyamine coagulant, those did extremely high efficiency in 56~92%. From the SEM(Scanning Electron Microscope) images of filtered wiremesh and metal foam membrane, sieve effects were predominant for liquid solid separation in wiremesh and adsorption and diffusion capture effects were predominant in metal foam membrane.
Keywords
Air scouring; Membrane backwash water; Metal membrane; Polyamine coagulant;
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Times Cited By KSCI : 1  (Citation Analysis)
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