About Optima Agrik

Regenerative Irrigation by Optima Agrik is a practical approach to sustainable irrigation under challenging water conditions.

Built for agriculture, not adapted from elsewhere

Optima Agrik’s work is grounded in a simple conviction: agriculture requires solutions designed for agricultural conditions, not direct adaptations of technologies developed for industrial or municipal use.

That means taking irrigation economics, variable source water, large treatment volumes, soil impact, and long-term productivity seriously from the start.

Practical objective: the goal is not to produce perfectly purified water at any cost, but to restore irrigation suitability in a way that agriculture can realistically use.

Optima Agrik collaboration in a greenhouse setting
Water treatment installation in a greenhouse environment

What Regenerative Irrigation means in practice

Regenerative Irrigation is the term Optima Agrik uses to describe its broader process approach to improving irrigation sustainability under difficult water-quality conditions.

It is about restoring irrigation suitability rather than only removing salts. It recognises that water treatment, crop performance, soil health, waste streams, and implementation economics are part of one agricultural system.

  • Remove what is harmful
  • Preserve what remains useful
  • Design around real farming conditions
  • Reduce waste and create more viable process outcomes

Ion exchange is the foundation because selectivity matters

Ion exchange is a reversible chemical process in which ions in a solution are swapped with ions attached to a solid material, typically a resin. In agricultural water treatment, that selectivity is crucial.

Instead of treating all water as if it needs the same purification outcome, ion exchange makes it possible to target problematic ions and shape the process around agricultural need.

Why this foundation fits
Selective

Targets specific ions rather than treating water indiscriminately.

Flexible

Can be tailored to different agricultural contexts and water constraints.

Economical

Can offer lower energy demand than reverse osmosis in relevant applications.

A key part of Optima Agrik’s work is also the valorisation of regeneration and brine streams, which can improve the practicality and economics of implementation.

A practical approach to sustainable irrigation under challenging water conditions.

The work focuses on irrigation water treatment specifically developed for agricultural conditions, combining ion exchange processes with practical implementation approaches suited to farming environments.

Demonstrated across multiple agricultural applications

Nitrate recovery

Recovery of nitrate from greenhouse drain water, demonstrating nutrient-oriented process use in controlled environments.

Sodium control

Control of sodium concentration in recycled greenhouse drain water, relevant to ongoing reuse viability.

Chloride reduction

Reduction of chloride concentration in a South African Peppadew trial, illustrating open-field relevance.

Recognition and collaboration

Optima Agrik’s work has attracted recognition because it addresses a clear agricultural challenge with practical relevance.

  • Participation in the Fertinnowa Project funded by the European Union
  • Solar Impulse Foundation label recognition
  • Finalist in the 2023 GreenCape Challenge
Fertinnowa greenhouse collaboration image

Fertinnowa

Recognition through participation in a wider irrigation innovation context.

GreenCape challenge recognition graphic

GreenCape finalist

A marker of both environmental relevance and commercial promise.

Ockie van Niekerk delivering a technical presentation

Technical leadership

Public presentation and engagement strengthen credibility around the work.

International greenhouse collaboration visit

International dialogue

The work sits within wider conversations about irrigation, fertigation, and sustainability.

Pioneered across multiple jurisdictions

The innovation behind Optima Agrik’s approach is rooted in our foundational, market-first developments, reflecting both historical originality and long-term commercial authority.

South African patent certificate

South African Patent

United States patent certificate

United States Patent

Australian patent certificate

Australian Patent

Moving toward commercial implementation

Optima Agrik is focused on commercialising process pathways under the broader concept of Regenerative Irrigation, with the aim of making sustainable irrigation more achievable where water quality would otherwise undermine long-term viability.