JRconsult advises industrial clients across three specialisms — chemical-free water hygiene, decarbonisation through biomass & pyrolysis, and plastic extrusion — turning proven engineering into projects that pay their way.
Deep, hands-on expertise where clean water, low-carbon energy, and polymer processing meet real operational and commercial constraints.
Keeping industrial and building water systems safe and compliant with no biocides at all — using patented Hydro-Physical (HP) treatment to control bacteria, biofilm and corrosion while cutting cost and environmental load.
Turning waste biomass into baseload power, biochar and bio-oil through advanced continuous pyrolysis — with every output stream converted into a product and a revenue line.
Over 30 years in plastic film extrusion — including 25 years as Managing Director for the Asia-Pacific headquarters of a leading extrusion technology company. Deep, practical support across the whole line.
My water practice is built around patented Hydro-Physical (HP) treatment — Fluid Dynamic technology that sanitises cooling water, fountains and process fluids mechanically, with more than a decade in industrial service and over 500 systems installed.
Process water is driven through a cyclone reactor at over 5 bar. Passing through cavitation, venturi and redox zones, bacteria are mechanically disintegrated by centrifugal force and shear from steep pressure differentials (+5 to −1 bar).
Supplying oxygen from ambient air then oxidises the dead biomass, so nothing accumulates and the system is durably protected against re-contamination and new biofilm — all to VDI 2047-2, with no biocide resistance to manage.
Figures indicative, drawn from installed reference systems — subject to site-specific engineering.
A compact, patented Fluid Dynamic reactor that retrofits into existing cooling and process-water circuits — footprint roughly 1.5 m², with a projected service life beyond 20 years.
Biofilm is up to five times more insulating than mineral scale — crippling heat transfer across the system.
Fouled heat exchangers force cooling systems to consume 20–30% more energy to do the same work.
Conventional biocide and chemical cocktails pollute blowdown water and the wider environment.
Industrial cooling towers, fountains and open water displays use biocides to control biofouling. Those substances enter the environment through the air (volatilisation and spray drift) and through water (blowdown discharged to surface water or via wastewater treatment). Chemical-free treatment removes that burden entirely.
“The volatilisation of biocides from water is different from the evaporation of water itself … a substance-based approach is needed.” — RIVM 2024
The updated RIVM methodology refines the EU Emission Scenario Document for PT11 cooling-water biocides with substance-specific emission factors, improving the accuracy of ecological exposure estimates across air, water and soil — a stronger basis for protecting people, flora, fauna and ecosystems near cooling installations.
Eutrophication is the over-enrichment of water with nutrients (mainly nitrogen and phosphorus), causing dense algal growth, oxygen depletion and ecosystem degradation — which can weaken the carbon-sink capacity of aquatic systems.
Source: RIVM 2024-0042 — Environmental Emission Estimation of Cooling Water Biocides.
My decarbonisation practice centres on advanced, gravity-fed continuous pyrolysis — German-engineered technology that is robust, repairable and quick to install, while meeting rigorous biochar and emissions standards.
Rather than simply burning biomass, the process transforms agricultural, forestry and processing residues into firm baseload electricity plus high-value co-products — biocarbon and bio-oil — that lower the effective cost of power.
Biochar delivers durable carbon dioxide removal (CDR) that qualifies for carbon-removal credits, while diverting biomass from field decay avoids large methane emissions. The net carbon and methane balance is strongly negative.
Figures indicative, drawn from reference installations — subject to final engineering for each project.
Plastic film extrusion is where my career began. More than 30 years in the field — 25 of them as Managing Director of the Asia-Pacific headquarters of a leading extrusion technology company, based here in Singapore — mean I have seen the technology, the applications and the markets from every angle.
That background spans the full picture: the engineering of screws, dies and film lines; the process know-how to lift output, stability and quality while cutting scrap; and the commercial judgement to guide technology selection and investment decisions.
Whether you are commissioning a new line, troubleshooting a stubborn quality issue, or weighing a major capital purchase, I bring hands-on operational experience together with a leadership view of the Asia-Pacific market.
A straightforward, engineering-led path that keeps technical rigour and commercial reality moving together.
Understand the site, feedstock or system, constraints and the outcome that actually matters to you.
Energy and mass balances, technology comparison and techno-economic modelling to test what works.
Specify the right technology and configuration — proven, durable and matched to your operation.
Support through commissioning, optimisation and ongoing performance, alongside EPC and technology partners.
Over 30 years in plastic film extrusion — including 25 as Managing Director of a leading extrusion technology company's Asia-Pacific headquarters in Singapore — now advising across clean water, low-carbon energy and polymer processing.
JRconsult is the consulting practice of Juergen Rehkopf, advising industrial and project clients where sound engineering has to meet emissions targets, hygiene requirements and a credible business case.
The work spans early feasibility and technology selection through to commissioning and optimisation — always independent of any single supplier, and always measured against the result you need to achieve.
Whether it's a water system to clean up, a decarbonisation project to structure, or an extrusion line to optimise — tell me what you're working on and I'll come back to you.
