Diovis Eco Limited

Independent engineering for industry

Diovis supports industrial companies in acid regeneration, wastewater treatment, hydrometallurgy and plasma technologies. We assess process performance, support modernisation and help select suitable equipment and components, independently of the original equipment manufacturer.

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Our services

Technical support for your plant

From an operating issue to a modernisation proposal, we help you define the next step and the technical basis for it.

Technical assessment

Review of operating data and reference performance figures, followed by an on-site inspection where required. You receive a prioritised list of findings and recommended actions, with estimated costs and benefits.

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Modernisation and operational support

Identify bottlenecks, evaluate improvement options and plan upgrades around production requirements. The assessment considers capacity, resource consumption, product quality and emissions.

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Spare parts and critical components

Component selection based on drawings, technical documentation and operating conditions. Quotations state the technical scope, country of origin and delivery lead time.

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Independent review of supplier proposals

Technical and commercial review of scope, proposed solutions, performance guarantees, exclusions and pricing before you commit to a modernisation project.

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Emission performance

Assessment of the relationship between process operation and emissions, with recommendations for engineering measures. Compliance measurements remain with your accredited laboratory.

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Acid regeneration

How an ARP closes the loop

Pickling linePre-concentratorVenturiRoasterSpray roaster · burnersCycloneAbsorberScrubberFan and stackRegeneratedHClIron oxideBin and bagging SpentacidConcentratedliquorRoastergasDust returnGas to pre-concentratorHCl-containinggas~18 wt%HClBack topicklingOff-gasTreated off-gasRinsewaterFe₂O₃ powder

Simplified spray-roaster flow. Fluidized-bed plants differ in reactor design and oxide handling.

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Our approach

Technology is knowledge before it is hardware

We work from operating data, mass and energy balances, and the conditions in your plant. This gives each recommendation a clear technical basis.

Measured data first

We start with operating records and targeted measurements to establish current performance and identify where further investigation is needed.

Process calculations before investment

We assess how a proposed change affects material consumption, utilities and the wider process before recommending equipment or upgrades.

Costs over the operating life

We consider the purchase price together with energy, chemicals, maintenance and environmental costs over the operating life of the plant.

Resource efficiency
The greenest tonne of acid is the one you never had to buy.Anna Smolyanaya, Founding Partner

Discuss your project

Tell us about your process, plant capacity and the task you need to resolve. For an existing installation, include its year of commissioning and a brief description of the operating issue.

An engineer replies within three working days.

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