Nitrate recovery
Recovery of nitrate from greenhouse drain water, demonstrating nutrient-oriented process use in controlled environments.
Regenerative Irrigation by Optima Agrik is a practical approach to sustainable irrigation under challenging water conditions.
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.
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.
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.
Targets specific ions rather than treating water indiscriminately.
Can be tailored to different agricultural contexts and water constraints.
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.
The work focuses on irrigation water treatment specifically developed for agricultural conditions, combining ion exchange processes with practical implementation approaches suited to farming environments.
Recovery of nitrate from greenhouse drain water, demonstrating nutrient-oriented process use in controlled environments.
Control of sodium concentration in recycled greenhouse drain water, relevant to ongoing reuse viability.
Reduction of chloride concentration in a South African Peppadew trial, illustrating open-field relevance.
Optima Agrik’s work has attracted recognition because it addresses a clear agricultural challenge with practical relevance.
Recognition through participation in a wider irrigation innovation context.
A marker of both environmental relevance and commercial promise.
Public presentation and engagement strengthen credibility around the work.
The work sits within wider conversations about irrigation, fertigation, and sustainability.
The innovation behind Optima Agrik’s approach is rooted in our foundational, market-first developments, reflecting both historical originality and long-term commercial authority.



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.