A program must connect make-up water quality, cycles of concentration, temperature, metallurgy, microbiological risk, filtration, blowdown and actual heat load.
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Understand the system before selecting the solution
Practical expert guides to industrial water treatment. There are no hidden universal recipes: we explain what happens in the system, which data should be checked and what a sound technical assessment looks like.
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Each chapter connects typical operating symptoms with the information needed for a sound technical decision.
01Cooling water and cooling towers
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Open systems lose water through evaporation while salts and contaminants remain in circulation. Closed systems do not concentrate by evaporation, but they can still corrode, deposit solids or lose chemical stability.
- Scale on heat exchangers
- Corrosion products and discoloured water
- Biofilm, slime or odour
- Blocked nozzles and reduced heat transfer
- Open, closed or once-through system
- Flow and inlet/outlet temperature
- Make-up and circulating-water analyses
- Materials, blowdown, dosing and the observed problem
02Boiler water, steam and condensate
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At elevated temperature and pressure, small water deviations rapidly become operational problems. Deposits reduce heat transfer, oxygen drives corrosion and foaming may carry contamination into the steam.
Pretreatment and chemical conditioning must match boiler pressure, steam production, feedwater quality, condensate return and the way steam is used.
- Rising flue-gas temperature or fuel consumption
- Feedwater and condensate-line corrosion
- Unstable conductivity and frequent blowdown
- Foaming, wet steam or process contamination
- Boiler type, pressure and capacity
- Water source and existing pretreatment
- Condensate-return percentage and deaeration
- Feedwater, boiler-water and condensate analyses
03Closed heating and cooling loops
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A closed loop is not automatically protected. Oxygen can enter through make-up, expansion equipment or leaks, while mixed metals, glycol and corrosion products create additional stress.
Stability depends on correct filling, make-up water quality, pH, inhibitors, air removal, side-stream filtration and control of process-water ingress.
- Black or brown water and magnetite
- Blocked valves and heat exchangers
- Frequent venting or make-up
- Loss of performance, glycol degradation or local corrosion
- Loop volume, temperature and materials
- Fill and make-up water quality
- Glycol/inhibitor type and concentration
- Make-up volume, pressure and air-separation condition
04Pretreatment, reverse osmosis and demineralisation
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An RO system is more than its membranes. Stable operation starts with the source-water profile and the correct sequence of filtration, softening, dosing, membrane separation and polishing.
Design is based on a complete raw-water analysis, seasonal variation, required product flow and quality, plus constraints on recovery, pressure, energy and available space.
- Falling product flow or rising pressure
- Increasing permeate conductivity
- Frequent chemical cleaning
- Fouling, scale or biological deposits on membranes
- Water source and analysis, temperature and turbidity
- Required average and peak flow
- Target conductivity or specific process requirements
- Operating hours, pretreatment, recovery and concentrate disposal
05Industrial filtration
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A good filter retains target particles without unacceptable pressure loss or process interruption. Choosing a micron rating without understanding the water source and solids load often causes rapid blockage.
Technology and filtration area are selected from flow, particle-size distribution, solids loading, available pressure, cleaning method and the downstream equipment being protected.
- Frequent manual cleaning or cartridge replacement
- Pressure drop and insufficient flow
- Particles in nozzles, exchangers or membranes
- Unstable performance as inlet water changes
- Water source and particle type
- Operating, minimum and peak flow
- Required filtration rating in microns
- Inlet pressure, backwash availability and downstream equipment
06Industrial wastewater
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Wastewater follows production and therefore changes with it. Raw-material changes, cleaning, product changeovers and peak discharges can completely alter physical-chemical or biological treatment behaviour.
A solution starts with representative sampling, flow and load balances, and a clear objective: sewer or environmental discharge, further treatment or reuse.
- Exceeding pH, COD/BOD, suspended-solids or metals limits
- Poor settling, floating sludge or turbid outlet
- Foam, odour or variable colour
- High chemical consumption and excessive sludge
- Stream source and average/peak flow
- pH, temperature, COD/BOD, TSS, oils, metals and other relevant parameters
- Existing treatment stages and chemicals
- Discharge limits or reuse target
07Foam and antifoam selection
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An antifoam must collapse foam without creating a new problem. The wrong product or dose can interfere with membranes, biological treatment, oxygen transfer, separation or finished-product quality.
Foam source, medium composition, temperature, pH, mixing and process sensitivity determine product chemistry, dosing point and minimum effective dose.
- Tank overflow and loss of working volume
- Unstable level measurement and dosing
- Reduced separation or oxygen transfer
- Foam carried into the next process stage
- Process, medium and exact point of formation
- Continuous or intermittent foaming
- Temperature, pH, mixing and aeration
- Current product, dose and compatibility constraints
08Service, spare parts and new equipment
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Fast diagnosis starts with correct equipment identification. Model, serial number, operating mode and error code often separate a component failure from a water-quality or operating-condition problem.
Before intervention, we establish whether service, a spare part, modernisation or new equipment is required and assess the effect of downtime on safety and production.
- Alarm or unexpected shutdown
- Loss of flow, pressure or water quality
- Leakage, vibration, unusual noise or overheating
- Repeated failures and obsolete parts
- Manufacturer, type, model, serial number and year
- Location and current equipment status
- Symptom description, alarms and last service
- Required part or new-equipment capacity and desired timing
EXPERT APPROACH
From symptom to verifiable cause
Define the problem
We separate the observed consequence from potential causes and locate where the problem appears.
Data and sampling
We review operating conditions, water analyses, equipment, trends and relevant samples.
Technical assessment
We compare water chemistry, hydraulics, heat load and equipment condition.
Solution and control
We propose a chemical program, equipment or service and define how performance will be verified.
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