Skip to main content

Improved Dewatering Technology of Steel Industry's Sludges by an Electrochemical System

Buy Article:

$17.50 plus tax (Refund Policy)

Or sign up for a free trial


The amount of sludge produced by steel industry has been steadily increasing for last decades. It is becoming more difficult and costly to meet the discharge requirements using the conventional methods adopted by steel industry. The electrodewatering system consists of a hydraulic bench press-frame fitted with an electric field and data acquisition system. Using conventional pressure filtration sludge treatment methods at Pohang Iron & Steel Corporation (POSCO), resulting water content of Corex sludge, Stainless steel sludge, and Cold rolling mill sludge were 45 wt%, 85 wt%, and 85 wt%, respectively. On the other hand, the water content of above three different sludges was dramatically decreased to 25.0 wt%, 51.0 wt%, and 38.6 wt%, respectively. In addition, the electrodewatering method could reduce the cost of chemicals, since flocculant does is not needed in electrodewatering. The results of this study clearly demonstrated that the dewatering system could be highly applicable to steel industry's sludge treatment system.

Document Type: Research Article


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 These proceedings are not peer reviewed.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

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
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