01 / Pretreatment
SDI in reverse osmosis: what it is and how to interpret it
A guide to understand this indicator, review trends, and relate it to membrane protection.
Read guide about SDIApplied knowledge · Canary Islands
Water blog: technical insight for every decision.
Desalination guides, reverse osmosis, filtration, disinfection, and plant operation. We explain what to measure, how to interpret the data, and when to inspect a facility.
Explore articlesThe input water, the end use, and the operating conditions change with each project. This space brings together practical criteria for understanding technologies and detecting signs of performance loss.
Content for professionals who design, maintain or manage water treatment facilities.Featured readings
Guides for informed operation.
Three common questions in a reverse osmosis plant: pretreatment, permeate quality, and membrane protection.
02 / Diagnosis
When the conductivity of the permeant increases
What to observe before attributing the loss of quality to a single cause in SWRO and BWRO systems.
Read about conductivity03 / Membrane protection
Bisulfite and metabisulfite for dechlorination in RO
Dosage, calculation and control of dechlorination before feeding an RO plant.
Read the dechlorination guideTechnical library
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Technologies, design and implementation explained for professional projects.
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Antiscalant for reverse osmosis: how to select the product and control dosing
October 2, 2026
Data to select an anti-scale agent, convert a validated dose to the pump flow rate, and control its application in desalination plants and reverse osmosis plants in the Canary Islands.
Subsidies for irrigation water in the Canary Islands: how to guide an investment
October 2, 2026
What to consider when seeking help to reduce the cost of irrigation water in the Canary Islands: water quality, consumption, filtration, pumping, and treatment before investing.
CANAGUA and Energía 2026: suppliers and water projects
October 2, 2026
CANAGUA and Energía 2026 will be held on October 21 and 22 in Agüimes. Practical data and key points to compare suppliers and prepare for supply, maintenance or technical collaboration
EDAR of Tías: supply and technical support in Lanzarote
October 1, 2026
The expansion of the Tías wastewater treatment plant and the new projects in Yaiza and Uga: criteria for preparing supply, filtration, consumables and technical support in Lanzarote.
UV lamps for water in industry and homeowners' associations
October 1, 2026
A guide to UV lamps for water treatment in industry and residential buildings: reactor selection, flow rate, water quality, alarms, spare parts and maintenance.
Descalcificadores domésticos en Canarias: cómo elegir para tu hogar
October 1, 2026
Limescale on taps, shower screens and household appliances? This guide explains how to select and maintain a domestic water softener for your water and household needs.
Bisulphite / Metabisulphite for dechlorination in RO: dosage, calculation and control (SWRO and BWRO)
March 2, 2026
Dechlorination before the membranes: dosage, mixing and verification. Practical starting point: SMBS ≈ 3 × free chlorine, expressed in mg/L as Cl₂.
Permeate conductivity rises at RO (SWRO and BWRO)
February 28, 2026
Step-by-step diagnosis · SWRO and BWRO Check the meter reading, distinguish a sudden increase from a gradual one, and locate the problem before taking any action.
SDI in reverse osmosis (RO): what it is, recommended values and how to interpret it
February 17, 2026
SDI: controlling fouling in reverse osmosis. Water intake → pretreatment → cartridge filters → reverse osmosis → permeate. Measure SDI to monitor the particle load.
Plug & Play modular containerisation
January 28, 2026
Modular containerised Plug & Play plants: complete water treatment systems for remote sites, demanding environments and international projects.
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