Sludge Digester Mixing and Heating Systems and Sludge Management
Papers presented at:

Cranfield, UK: 22 & 23 May 2001

Papers presented at this conference, as outlined in the Contents below, are available in a bound volume of proceedings from Mrs Marian Rolfe at BHR Group.

To register your interest and request further information about any future events in this field, please contact Mrs. Babs Astle at BHR Group.

Introduction - Sludge Management
The recent revisions of the Water Regulator under the AMP 3 determinations have increased pressure on Utility companies and others to improve their sludge management techniques. The efficient and effective handling and disposal of sludge whilst complying with current and future landfill and effluent treatment legislative requirements are essential if companies are to operate profitably. Using the most advanced systems approaches coupled with modern biological and fluid engineering techniques can bring substantial capital and revenue cost savings.

This conference brought together users and suppliers of the leading sludge management processes together with consultants and developers of the new generation of sludge management techniques.

Introduction - Sludge Digester Mixing and Heating Systems
In recent times, considerable attention has been placed on sludge digestion processes. This is driven by the potential impact of forthcoming regulation relating to the "Safe Sludge Matrix". The conference brought together the different proponents in the current debates on digester mixing and heating systems. The objective was to provide an overview of all the major types of digester mixing and heating systems currently available and in use.

Contents - Sludge Digester Mixing and Heating Systems
The Application of Fundamental Rheological and Mixing Studies to Provide Energy Efficient Mixing of Anaerobic Digesters
D Harrison & C Brade, Monsal, UK; M Dawson & J Christoulides, BHR Group, UK; M Tillotson, Yorkshire Water, UK

Draft Tube Sludge Mixer - A Unique Idea to Optimise the Process of Digestion
E Lahner, U Werner, Sterling SIHI GmbH, Germany

Introduction to the Rotamix Tank Mixing System
Richard Behnke, Vaughan Company, UK

A Comparison of Advantages & Disadvantages Between Different Sludge Mixing Systems in Digester Tanks
N Peck, The Utile Engineering Co, UK

Practical Aspects of Pumping Sludge around Digesters
D Hucknall & M Lancett, Hidrostal Ltd, UK

What Are We Achieving with Digester Mixing?
R. Edgington, Severn Trent Water, UK

Renewal of Mogden STW Digester Heating & Mixing Systems
P May, Paterson Candy Ltd, UK

Contents - Sludge Management
Testing and Costing a Novel Pasteurisation Process for the Treatment of Sewage Sludges
T Michel, Purac Ltd, UK

Securing and Managing Agricultural Outlets for Sludge Using Geographical Software on a Mobile System
J Hodson, Tynemarch Systems Engineering; W Griffiths, Southern Water Services

Developments with the "Safe Sludge Matrix" and the Use of Sewage Sludge on Industrial Crops
G Hickman, ADAS Environment; B Chambers, ADAS Gleadthorpe Research Centre

The Increasing Importance of Assessing Toxicity in Determining Sludge Health and Management Policy
P Spencer Davies, Strathkelvin Instruments Ltd

Delivering Savings in Sludge Tankering: Opportunities & Barriers for Future Development
G Sampson, BHR Group, UK

Tracking Sludge Movements - An Integrated Solution
P Jackson, Entec UK, Ltd; J Amot, West of Scotland Water, UK

Impact of Sludge Thickening on Sludge Handling and Management Plan
L Mountford, Simon-Hartley; K Moran, North of Scotland Water Authority

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