Tenselo separates treatment selection from equipment sizing. WTR-022 interprets the supplied laboratory results and proposes stages in flow order. The linked calculators assess capacity, chemicals, backwash, recovery and hydraulic requirements for each stage.
Start with the duty and treated-water target
Record the intended use, water source, peak and daily flow, available pressure, operating hours and treated-water target before choosing a process. Add the complete laboratory analysis and keep seasonal or rain-related changes visible. A process that handles a steady bore can behave differently on surface water with changing turbidity and algae.
Preliminary process-selection map
| Finding | Potential stage to assess | Tenselo workflow |
|---|---|---|
| Suspended solids or variable turbidity | Screen, disc, media, cartridge, coagulation or UF | Filtration, WTR-012, WTR-013 and WTR-006 |
| Iron, manganese or hydrogen sulphide | Oxidation, contact time and catalytic filtration | WTR-015 iron-removal sizing |
| Hardness and scaling | Ion-exchange softening, blending or membrane treatment | DOM-004 or WTR-018, WTR-004 and WTR-003 |
| Dissolved salts or selected dissolved contaminants | Reverse osmosis with suitable pretreatment | WTR-003 RO design and WTR-005 mass balance |
| Microbial risk | Source protection, filtration and validated disinfection barriers | WTR-007 CT, WTR-008 residual decay, WTR-010 UV and related filtration calculations |
| Taste, odour or organics | Activated carbon after the upstream load is understood | WTR-011 industrial GAC or DOM-001 domestic filtration |
The table lists questions to investigate. It does not prove that a listed process is suitable for a particular site.
Check the treatment stages in flow order
The sequence affects performance. Sediment and iron removal may protect a membrane. Softening or antiscalant can change RO scaling risk. Carbon can remove oxidants that would damage some membranes, while disinfection barriers need enough upstream treatment to meet their validated operating conditions.
Tenselo links the interpretation to separate calculations so the designer can check each duty instead of treating a named product as the whole design. The report records the assumptions used for the sequence and sizing.
Evidence required before equipment selection
- A representative laboratory analysis with units, reporting limits and sample date
- Peak and continuous flow, daily demand and available pressure
- Seasonal variability and the worst expected source condition
- Backwash, cleaning, chemical storage and waste-disposal arrangements
- Current supplier performance data, material compatibility and maintenance requirements
- The applicable drinking-water, environmental and plumbing requirements
Use water-analysis interpretation to organise the starting evidence.
Questions
How does Tenselo select a water-treatment process?
The software combines the source, intended use, hydraulic duty and entered laboratory results to propose preliminary stages in flow order. Each stage links to a separate sizing calculation.
Can one water sample define the complete treatment plant?
Usually not. Seasonal variation, particle size, peak flow, cleaning and backwash, waste disposal, supplier performance and the required treated-water quality also affect the design.
Does Tenselo select actual equipment?
Some sizing tools can assess named supplier products or standard vessels. The user must confirm the current model, materials, operating envelope and complete process with the supplier and a competent specialist.
Is water-treatment selection the same as drinking-water approval?
No. A preliminary process selection and equipment calculation do not certify drinking-water safety or replace regulatory and specialist review.