If you are experiencing problems downloading PDF or HTML fulltext, our helpdesk recommend clearing your browser cache and trying again. If you need help in clearing your cache, please click here . Still need help? Email help@ingentaconnect.com

USING SIX SIGMA TO INCREASE PROCESSING AND THICKNESS OF WASTE ACTIVATED SLUDGE THROUGH A CENTRIFUGE

$17.50 plus tax (Refund Policy)

Buy Article:

Abstract:

Six Sigma is a process improvement program that use data and statistical tools to identify and reduce variation in a process. The results of using this methodology can include increased productivity, decreased defects, cost reductions and improved customer service. The Six Sigma methodology is comprised of four phases: measure, analyze, improve and control. In each of these phases different tools are used to identify where and how improvements to a process should be made.

The City of Fort Wayne, Indiana has embraced Six Sigma to enhance the processes and services the City provides its residents. Fort Wayne is believed to be the first city in the country to implement this methodology. Currently, the City has 35 employees trained in Six Sigma and working on projects that will directly benefit City operations. The Water Pollution Control Plant, Water Filtration Plant, Police, Fire, Parks, Street and Solid Waste departments are some of the areas of the City where Six Sigma improvements have and are taking place.

The Water Pollution Control Plant's project was to increase the processing time of Waste Activated Sludge (W.A.S.) through the centrifuge by 40% and to increase the thickness of the sludge being produced from 2.2% to 6–8%. One of the most significant outcomes of this project was cost avoidance of 1.7 million in digester improvements, however that was not the project's only achievement.

The outcome of this session is an introduction to Six Sigma and how it benefited the City of Fort Wayne, Indiana in its operation of the centrifuge.

Document Type: Research Article

DOI: http://dx.doi.org/10.2175/193864702785301466

Publication date: January 1, 2002

More about this publication?
  • Proceedings of the Water Environment Federation is an archive of papers published in the proceedings of the annual Water Environment Federation® Technical Exhibition and Conference (WEFTEC® ) and specialty conferences held since the year 2000. These proceedings are not peer reviewed.

    WEF Members: Sign in (right panel) with your IngentaConnect user name and password to receive complimentary access.
  • Subscribe to this Title
  • Membership Information
  • About WEF Proceedings
  • WEFTEC Conference Information
  • ingentaconnect is not responsible for the content or availability of external websites

Tools

Favourites

Share Content

Access Key

Free Content
Free content
New Content
New content
Open Access Content
Open access content
Subscribed Content
Subscribed content
Free Trial Content
Free trial content
Cookie Policy
X
Cookie Policy
ingentaconnect website makes use of cookies so as to keep track of data that you have filled in. I am Happy with this Find out more