Waste Management & Research

 

Advanced Search

Journal Navigation

Journal Home

Subscriptions

Archive

Contact Us

Table of Contents

Click here for more information

Sign In to gain access to subscriptions and/or personal tools.
This Article
Right arrow Full Text (PDF)
Right arrow Alert me when this article is cited
Right arrow Alert me if a correction is posted
Services
Right arrow Email this article to a friend
Right arrow Similar articles in this journal
Right arrow Similar articles in ISI Web of Science
Right arrow Similar articles in PubMed
Right arrow Alert me to new issues of the journal
Right arrow Add to Saved Citations
Right arrow Download to citation manager
Right arrowRequest Permissions
Right arrow Request Reprints
Right arrow Add to My Marked Citations
Citing Articles
Right arrow Citing Articles via ISI Web of Science (2)
Right arrow Citing Articles via Google Scholar
Google Scholar
Right arrow Articles by Sekito, T.
Right arrow Articles by Matsuto, T.
Right arrow Search for Related Content
PubMed
Right arrow PubMed Citation
Right arrow Articles by Sekito, T.
Right arrow Articles by Matsuto, T.
Social Bookmarking
Add to CiteULike   Add to Connotea   Add to Del.icio.us   Add to Digg   Add to Reddit   Add to Technorati  
What's this?
Waste Management & Research, Vol. 21, No. 4, 299-308 (2003)

Study on composition and particle characteristics of shredded municipal waste for the improvement of separation efficiency in a municipal bulky waste processing facility

Tomoo Sekito

Department of Civil and Environment Engineering, Faculty of Engineering, Miyazaki University

Nobutoshi Tanaka

Division of Waste Disposal Engineering, Graduate School of Engineering, Hokkaido University, Hokkaido, Japan

Toshihiko Matsuto

Division of Waste Disposal Engineering, Graduate School of Engineering, Hokkaido University, Hokkaido, Japan

In order to propose a new and more efficient method of separation for shredded municipal bulky waste (SBW), particle characteristics (namely shape, density and terminal settling velocity) were investigated. It was found that particles of the combustibles such as wood, paper and plastics were included in the fraction smaller than 50 mm. Consequently, separation of SBW into combustibles and non-combustibles by particle size is difficult. Since the particles of the various materials are of all shapes, it is difficult to sort them by shape discrimination. The overall separation efficiencies using air flow and density for SBW separation were estimated and the maximum values are as high as approximately 90% and 99% respectively. However, because of the overlapping ranges of the terminal settling velocities in air for glass, metals, rubber, and plastics, the overall efficiency will become smaller if those materials are major components of the feed. It is concluded that density separation is more suitable for the separation of combustibles and non-combustibles in SBW than air separation.

Key Words: Municipal bulky waste • density • terminal settling velocity • combustible fraction • non-combustible fraction • wmr 614-4.


Add to CiteULike CiteULike   Add to Connotea Connotea   Add to Del.icio.us Del.icio.us   Add to Digg Digg   Add to Reddit Reddit   Add to Technorati Technorati    What's this?