How can horticulture guarantee safe and efficient water disinfection—%%without chlorate or sodium?%%

Horticulture, Substrate cultivation, Water disinfection, biofilm, pathogens

Our Clients

Greenhouses growers, substrate & hydroponic growers, vertical farmers, nurseries, Horticulture System integrators

In horticulture, water disinfection is essential to prevent biofilm, pathogens, and nutrient imbalances. Clean water ensures healthy crops and optimal growth conditions. However, conventional systems using bulk chlorine or sodium hypochlorite often introduce unintended consequences that compromise both plant health and operational efficiency.

Many growers still use bulk sodium as conventional approach

Most horticulture growers still rely on bulk sodium hypochlorite for water disinfection. However, long storage times lead to chlorate formation, while high pH accelerates degradation. Sodium accumulates in irrigation systems, harming sensitive crops and requiring frequent flushing to maintain water quality—making this method inefficient and unsuitable for closed water cycles.

Stop biofilm and sodium risks in irrigation: Ultra-Pure Chlorine On-Site with VDH Electrolysis

VDH Watertechnology offers in-situ electrolysis systems, such as the Chlorinsitu®-V, which produce pure chlorine on demand—without the need for storage or the risk of sodium contamination. Our systems offer long-lasting depot activity, actively removing biofilm throughout the entire piping network.

Unlike UV or hydrogen peroxide treatments, which have short-lived effects, our ultrapure chlorine ensures consistent and reliable disinfection.

CHLORINSITU® as your growers solution

For horticultural system integrators delivering water solutions to greenhouses, nurseries, and vertical farms:

CHLORINSITU®
provides on-site sodium hypochlorite production via membrane electrolysis – designed for easy integration into modern irrigation systems.

It ensures safe, effective disinfection for growers demanding reliable water quality, disease prevention, and compliance across diverse horticultural operations.

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Potassium-based electrolysis no longer compliant

Many growers still rely on potassium chloride (KCl) as a precursor for electrolysis systems. While this method has long been accepted, it presents growing challenges. Potassium-based systems contribute to unwanted nutrient imbalances in irrigation water and are no longer permitted under current European legislation. According to BPR EU 528/2012, the use of KCl in electrolysis equipment is prohibited. This regulatory shift makes potassium-based disinfection both non-compliant and unsustainable.

Switch to Sodium Chloride

VDH Watertechnology offers a reliable alternative: sodium chloride (NaCl). Our Chlorinsitu® systems use NaCl to produce pure chlorine on demand, without storage, without sodium contamination in the irrigation water, and fully compliant with Article 95 and Ctgb approval in the Netherlands.

Share your toughest irrigation water-quality challenge, and we’ll craft the right solution — standardized or custom — to optimize your system.

Whether you manage a high-tech greenhouse, hydroponic system, vertical farm, or tree nursery, you know that irrigation water quality is critical for plant health and yield. Issues like pathogens in recirculated water, biofilm in irrigation lines, sodium buildup, or insufficient disinfection can compromise your results. At VDH Watertechnology, we design and deliver advanced water disinfection systems for horticulture — tailored to integrators and growers. Our solutions guarantee reliable pathogen control, safe reuse of drain water,

Discover our expertise
Empowering system integrators with proven technology for greenhouses and nurseries

Meeting strict irrigation water-quality standards is vital for successful cultivation. VDH Watertechnology’s advanced disinfection installations guarantee clean, pathogen-free irrigation water for greenhouses, hydroponic systems, and nurseries. Our solutions protect crops, prevent biofilm and sodium buildup, and ensure reliable water reuse — all while optimizing energy and water consumption for a truly sustainable and cost-efficient horticultural operation.

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