An Environmentally Friendly Water Treatment System

Introducing the CTMS©

Cooling Tower Management System

An INTEGRATED Solution to ALL Cooling Tower Problems

Fouling is defined as the accumulation of dirt, scale, corrosion products or other materials on the surface of heat exchangers. This will cause under-deposit corrosion and ultimately increase maintenance and energy consumption.

Traditional Cooling Tower TreatmentCooling towers are heat exchangers that utilize water and air to transfer process waste heat to the outdoor environment. Providing cooling water is commonly applicable in air conditioning, manufacturing and electric power generation. The resurgence of interest in GREEN technologies and their financial benefits are driving the market towards environmentally friendly alternatives to solve common cooling tower problems.

As an owner of cooling tower, you are probably aware of the obvious signs of scale build-up, the growth of algae, the corrosion and pitting throughout the tower and chiller system.

Until recently, the options have been limited; they are often less effective and proven unsatisfactory. The main alternatives have been chemical injections, which are costly and harmful to the environment. Chemicals commonly used are toxic and highly corrosive to towers. Consequently, corrosion inhibitor, pH regulator, antiscalant will be required. All these chemicals increase the maintenance cost, as well as causing premature tower replacement and environmental problems.

Traditionally, chemicals are used to combat the chemical imbalance in cooling water due to saturation of minerals and pollutants from the air. It is the chemicals themselves that are part of the problem:

CTMS© does not try to solve the symptoms of the problems, but remove the CAUSE of the problems with the complete tower management system.

Corrosioninhibitorschangethe pH

pHregulatoris used

Biocidescauseswater to

froth

Another chemical is

used

And so on...

CTMS© Cooling Tower Management SystemCTMS© is the first integrated system to totally maintain and care for your cooling tower.

CTMS© is not just another treatment system. As the name implies, CTMS© is a “complete treatment system” and contains important differences that other systems do not have.

Substantial Energy Savings. Scale with a thickness of 70µm is equal to a loss of 11% thermal efficiency. CTMS© scale control unit will reduce scaling to almost zero and therefore increase thermal efficiency in tower.

50% Reduction of Blow Down Water. CTMS© does not use a traditional blowdown, but uses an internal filter to remove solids from the water. CoC is thus increased from 3-4 up to 10-15. As the blow-down water does not contain chemical residue, or silt, the water can be sent straight to surface water reservoirs or public sewer without further treatment. In many cases, this water can be re-used for other processes within the plant.

100% Removal of Bacteria and Biofilm. CTMS© incorporates a unique disinfection system, which utilizes electrochemical activation (ECA) technology to generate an ecologically safe, activated solution which displays high level efficacy against all known microorganisms, including Legionella.

>80% Reduction of Chemicals. By incorporating ECA technology for disinfection coupled with an electronic descaler for scaling control and an internal filtration system, fluocculants and descalants are no longer needed. Depending on make-up water quality, it is possible to achieve 100% reduction of chemicals.

Significant Reduction in Maintenance. CTMS© will keep the tower reservoir clean. The “stand alone” system is fully automated. Sediments, corrosion and calcium deposits are nonexistent. Therefore, the plant does not need to be shut down for periodic maintenance.

Environmentally Friendly. CTMS© reduces energy, chemicals and water usage.

Before CTMS© treatment of AVON (UK)cooling tower reservoir

After CTMS© treatment of AVON (UK)cooling tower reservoir

CTMS© Cooling Tower Management System

COOLING TOWER SYSTEM

CommonProblems Description

Traditionalprevention/

control methodCTMS©

Mineral Scale

Fouling

MicrobiologicalGrowth(Biofilm)

Biocides

Air pollution

Maintenance

Increases opportunities for bacteria growthDecreases heat transferefficiencyCauses under-deposit corrosion

Apply chemicalscale inhibitors

ANENVIRONMENTALLY

FRIENDLY SOLUTION

THAT SOLVES ALLCOMMON

PROBLEMSIN COOLING TOWERSIMULTANEOUSLY

Decreases heat transferefficiencyCorrosive bacteria thrive under foulants

Apply chemicaltreatment or

increaseblow-down

Water borne diseases (Legionella) Decreases heat transfer efficiency Causes under-depositcorrosion

Apply chemicalbiocides &corrosioninhibitor

Highly corrosive and attack cooling tower surfaceIncreases maintenancecost

Apply chemicalcorrosioninhibitors

Air borne particles provide a breeding ground for bacteria while causing rapid cooling tube corrosion

Increaseblow-down

Blow-down and cleaningconsumes man-power and timeProduction shut-down forcleaning

Manual

There is no reason not to let your cooling tower be treated by CTMS©

Case Study: Proviron Industries in Hemiksem, Belgium

Proviron Industries transforms recyclable raw materials into durable materials, focusing on specialty chemicals, biodiesel and custom manufacturing for third parties.

Problem• Close to a housing estate (contamination danger)• Noise prevention• Discharge costs and norm• Cost of traditional water treatment

Traditional Treatment• Average chemical cost per month of 198 euro equaling to 2,376 euro per year• Average maintenance cost per year 6,530 euro• Collection of blow-down 6,144 euro exclusive labor cost

CTMS© Solution• To reduce chemical input• To reduce water cost• To reduce waste water cost• To increase tower performance• To reduce maintenance cost

Items

Water cost (at 3.5 €/m3)

Chemical cost

Waste water (blow down) removal

Maintenance (contract for 1 year)

Total (€)

Traditional (€)

1,680

2,376

6,144

6,530

16,730

CTMS (€)

168

0

0

3,000

3,158

Savings (€)

1,512

2,376

6,144

3,530

13,572

CTMS© installation in Proviron Industries

Case Study: Proviron Industries in Hemiksem, Belgium

In the above table, the following costs have not been calculated:• Process shut down to clean the tower and reservoir• Stocking cost of chemical products• Energy costs (At least 10% energy savings)• Personnel cost

Results1 year after installation of CTMS©, the conditions of spray arrays, fill packets and reservoir were investigated.

In February 2000, Proviron ordered 2 additional CTMS© units for

a new production line (50m³ & 10m³) at their site in Hemiksem.

Spray arrays and fill packet. No evidence of corrosion or calcium deposits.

Reservoir. The reservoir is clean all year round.

CTMS©An INTEGRATEDSolution for ALL

Cooling TowerProblems

A Typical Skid of CTMS©

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PUM

PB

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Benefits of CTMS©

So why switch to CTMS©?Significant energy savings.

Fully automated.

Environmentally friendly.

Elimination of high operating costs such as

chemicals and cleaning of towers.

Elimination of bacteria and biofilm,

including Legionella in cooling water.

Elimination of scale and fouling throughout

the system resulting in increased overall

operating efficiency.

CTMS© keeps tower and reservoir clean, removes silts and sediments, destroys bacteria, algae and biofilm, reduces scaling to a minimum. All problems of cooling tower can now besolved with one integrated system.

NOTE

Install CTMS© now.Contact us for further information.

For more information contact: FLOTECH CONTROLS PTE LTD 438 Tagore Industrial Avenue Singapore 787814 Tel: (65)6553 0366 Fax: (65)6553 0828 Email: info@flotech.com.sg Website: www.flotech.com.sgReg. No. 198204457H12_0310

INTRODUCING THE CTMSCTMS©

An Environmentally Friendly Water Treatment System

Cooling Tower Management SystemThe One Solution to All Cooling Towers Problems