June 2003
Weir Techna represents the process technology division of the Weir Group PLC, contracting to international markets in desalination, water and effluent treatment applications, concentration, drying and crystallization of process solutions, chilling and heat recovery systems.
Weir Techna (South Africa) is a leader in industrial waste treatment, servicing the chemical, pulp & paper, mining, mineral and food & beverage industries. The company approaches treatment challenges from a process-engineering viewpoint and is active in the areas of process development and consulting, plant design, equipment supply, installation, commissioning and operation.
The technology base spans thermal and membrane separation processes, ion exchange, physical/chemical, biological and oxidative treatments. Thermal equipment on offer includes evaporators, concentrators, crystallizers and driers for industrial process streams and effluents. (Under licence to Swenson (USA))
All engineering disciplines, expertise and know-how are represented in South Africa, enabling an experienced and dedicated project team to complete detail design packages at competitive South African rand man-hour rates.
Weir Techna (SA)
Regular Features
Front Cover Story
Comment (Glynnis Koch)
Forum
SAIChE News
Envirowatch
In brief
What's the buzz?
Bio-Processing
Six challenges to maintaining biotech safety
Bob Brown (Environmental health and safety manager for a manufacturer in the aluminium industry) ,
Applications of biotechnology in the forest products industry
Francois Wolfaardt (Dept of Microbial, Biochemical & Food Biotechnology, University of the Free State) ,
Chemical Engineering in the Mines
Comminution simulation using discrete element method (DEM) approach from single particle breakage to full-scale SAG mill operation
Lawrence K Nordell and Alexander V Potapov (Conveyor Dynamics) ,John A Herbst (Svedala Optimization Services),
Focus on chemical engineering in the mines
Mixing
Demonstration of a novel retrofit tomography baffle cage, for gas-liquid mixing studies under intense operating conditions
M Cooke (Dept of Chemical Engineering, UMIST, Manchester) ,G Bolton (Industrial Tomography Systems, Manchester), DH Jones / D Houseley (Huntsmand Polyurethanes, Everburg / DuPont Polyester Technologies, Middlesborough)
Waste Treatment
Industrial wastewater treatment using South African natural zeolite, clinoptilolite
L Jewell, S Semosa, D Glasser, D Hildebrandt (Centre of Material & Process Synthesis, School of Process & Mats Engineering, Wits) ,
