Non Chemical Descaling and Debottlenecking Systems Introduction Page Non Chemical Descaling and Debottlenecking Systems Specialising in Large Industrial Fluid Process Systems Copyright PS Australian Promotions P/L 2003 

Cooling Tower and Condenser /Chiller Systems The major problems in these water systems are:- scale sludge bio-film/slime legionella and algae.

Typical scale, sludge & biofilm/slime fouling In a chemically treated Building Air-Conditioning System

Non-Chemical Control of Scale, Sludge and Bio-film/Slime Scale-X Magnetic Fluid Conditioners can control and eliminate scale, sludge and bio-film/slime deposition in water process systems. Typical treatable scales include the following:-Calcite (calcium carbonate) Gypsum (calcium sulphate) Magnesite (magnesium carbonate) Dolomite (calcium/magnesium carbonate)

Typical Building Air-Conditioning System Scale-X MFCs eliminate scale, sludge & biofilm/slime fouling

An Example of a Chronic Scale Problem Eliminated by Scale-X MFCs South China Sea Offshore Platform Block Valve Reducer Without and With Scale-X MFC’s Before After

South China Sea Offshore Platform Control Valve and Non-Return Valve without and with Scale-X MFC’s The scale was predominately calcite with some dolomite and barite. Before After

Magnetic Conditioning of Water Changes Crystal Size & Nucleation IEEE Transactions on Magnetics, Vol Mag-21, No 5, Sept 1985 Dr. Klaus L Kronenberg, California State Polytechnic University Treated Water The smaller crystals have a tendency against adhesion to the surface of pipes and vessels as scale Untreated Water

Reduction in Surface Tension

Existing Scale Removed

Existing Scale Becomes Soft After treatment the scale becomes soft and the liquid velocity must be fast enough to scour away the softened scale.

Pipe Insert Type MFC

External Bolt On Type MFCs For use only on non-magnetic type pipes.

Typical cooling tower efficiency Scale-X MFCs vs Chemical treatment

Biofilm increases energy usage up to 4 times faster than calcium carbonate Some deposits are more insulating than others and thus have a greater impact on the head pressure and energy requirements. For example, calcium carbonate scale deposits transfer heat up to 4 times better than biofilm deposits (slime). As a result, slime increases head pressure and energy requirements and will shut down a chiller much faster than “normal” scale. HVAC Energy Conservation Through Cooling Water Treatment By: A. Bhatia Continuing Education and Development, Inc. Stony Point, NY 10980 USA

Scale thickness and increase in energy usage Biofilm/slime can cause an increase in energy usage of up to 4 times that of calcium carbonate for the same thickness of buildup.

Biofilm reduces efficiency and accelerates corrosion Biofilms also plug water passages and piping, help to accelerate corrosion, and reduce heat exchanger efficiency. Cooling Water Management Basic Principles and Technology By: Timothy Keister, CWT Fellow, American Institute of Chemists Certified Water Technologist ProChemTech International, Inc.

Controlling Bacteria Bacteria feed on the bio-film and scale in fluid systems. By reducing and eliminating scale and bio-film, bacteria can be reduced and eliminated. Scale-X Magnetic Fluid Conditioners can control and eliminate bio-film and scale when correctly applied.

Control of Algae, Bacteria and Legionella Scale, sludge and corrosion in the fluid systems provide the nutrients for bacteria, fungus and algae to live. Legionella lives on a bacteria in the water which derives its nutrients from the scale and sludge in the water. Magnetic fluid treatment prevents scale from forming, cleans away existing scale and the water becomes cleaner. Cooling Towers Thus Scale-X MFC’s reduce and/or remove the food chain (nutrients) on which the harmful bacteria lives. This can result in a significant reduction and/or elimination of the bacteria and algae problem.

MFC Control of Algae, Bacteria and Legionella in 29 Cooling Tower Systems A survey of 29 cooling towers using magnetic fluid conditioners and not using biocides and scale inhibitors showed no towers were a health risk and Legionella had been controlled in all towers.

Results of MFCs Treating Cooling Towers Systems Maintenance Australia - Jan 1990 Dr David Lloyd

MFCs Applied to Warm Water Systems An example of treating a scaled (dirty) system.

Warm Water Systems An example of treating a scaled (dirty) system. Note:- Magnetic Technology recommends that the system be cleaned before the Scale-X MFCs are installed so that bacteria and algae elimination are not delayed by the removal of existing scale.

Laboratory Test Results for Legionella Control Maintenance Australia - Jan 1990 Dr David Lloyd

Specialising in Large Industrial Fluid Process Systems Introduction Page Specialising in Large Industrial Fluid Process Systems Non Chemical Descaling and Debottlenecking Systems Copyright PS Australian Promotions P/L 2003 

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