Skip to main content


Buy Article:

$9.50 plus tax (Refund Policy)

Or sign up for a free trial

The purpose of this project is to deliver a tool for organizations that are considering the automation of thickening and dewatering systems. This paper presents the findings of a literature review on dewatering instrumentation and the testing results from the first few facilities. The final report will provide a review of each automation package for function, ease of implementation, and cost effectiveness.

Based on input, the project team has developed a research plan. Specific points that are being addressed in the research are:

The instrumentation and control systems must be reliable on a long term basis and require a minimum amount of maintenance to be cost effective. This includes the ability to respond to and recover from process upsets.

The test program and final report must consider that each facility evaluating the use of an automation system will have a different definition of optimum performance depending on operating conditions. Some facilities may target minimum polymer usage, while others are more interested in maximum cake solids or maximum throughput.

The desired location of the control algorithm will vary from site to site. Generally smaller facilities will be interested in a “black box” to optimize the solids handling process. Larger facilities that have standardized on a certain PLC manufacturer are more likely to want the control algorithm fully integrated into their plant's existing control system. For the purposes of this testing, the automation package manufactures will supply their standard unit (black box) which will be integrated with the facility control system at a relatively high level.

The combination of each facilities existing process automation and the optimization control package should allow for optimum performance of the solids handling process, with the goal of having an operator spend less than 25 percent of their time during the operation of the thickening/dewatering equipment.

The results of this research are presented in this paper.
No Reference information available - sign in for access.
No Citation information available - sign in for access.
No Supplementary Data.
No Data/Media
No Metrics

Document Type: Research Article

Publication date: 2001-01-01

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.

    A subscription to the Proceedings of the Water Environment Federation includes access to most papers presented at the annual WEF Technical Exhibition and Conference (WEFTEC) and other conferences held since 2000. Subscription access begins 12 months after the event and is valid for 12 months from month of purchase. A subscription to the Proceedings of the Water Environment Federation is included in Water Environment Federation (WEF) membership.

    WEF Members: Sign in (right panel) with your IngentaConnect user name and password to receive complimentary access. Access begins 12 months after the conference or event
  • Subscribe to this Title
  • Membership Information
  • About WEF Proceedings
  • WEFTEC Conference Information
  • Learn about the many other WEF member benefits and join today
  • Ingenta Connect is not responsible for the content or availability of external websites
  • Access Key
  • Free content
  • Partial Free content
  • New content
  • Open access content
  • Partial Open access content
  • Subscribed content
  • Partial Subscribed content
  • Free trial content
Cookie Policy
Cookie Policy
Ingenta Connect 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