Thermal Alliance – TRS Electrical Resistance Heating (ERH)

We are delighted to announce that Cornelsen has partnered with TRS Europe in a “Thermal Alliance” for the delivery of their Electrical Resistance Heating (ERH) technology.   TRS is the world’s largest and most experienced provider of ERH with over 150 projects completed to date.  Cornelsen, with a reputation for it’s robust, reliable and safe remediation system designs, and over 14 years’ experience delivering steam injection and conductive heating thermal projects across Europe, brings strength and depth to the Thermal Alliance’s ability to deliver safe, certain and guaranteed results.

The synergy between Cornelsen and TRS, our engineering, technologies and our highly experienced process, mechanical and electrical engineers, coupled with our shared approach to quality, reliability and integrity presents a compelling prospect for our respective client base.

STAR – Smouldering Combustion Technology

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Thermal remediation technology where the contaminant is the fuel

We are excited to confirm that Cornelsen has been appointed by Savron to deliver their State of the Art STAR (in-situ) and STARx (ex-situ) smouldering combustion technology for in-situ and ex-situ remediation across Europe.

With extensive existing and on-going experience delivering in-situ thermal desorption and steam / air injection systems and with a reputation for rigorous process safety and robust and reliable remediation systems, Cornelsen is ideally suited to partner with Savron on rolling out their cutting edge remediation solution.

For more information visit our STAR combustion Page.


Newly appointed distributor for Amiad industrial water filtration products

We are delighted to announce that we have been appointed as a sales distributor for the full range of Amiad water filtration products.

This development provides us the basis for further company expansion and allows us to offer bespoke industrial & commercial water filtration & treatment systems as well as straight forward filter sales.

Our dedicated team of skilled engineers & technicians will back each project from enquiry to completion with the same levels of service & expertise now synonymous with Cornelsen in the remediation industry.

  • Automatic self-cleaning, semi automatic & manual versions
  • Filtration degrees from 3500 to 0.45 microns
  • On-line cleaning – process flow maintained during cleaning
  • TSS testing service to allow correct selection of filtration strategy

For more information, visit our filtration pages:

Steam Injection Remediation UK

Steam Injection Remediation UK Case Studies

Steam Injection Remediation Case Studies

Land contamination issues can be resolved with Steam Injection systems from Cornelsen. By the injection of a steam / air mixture the substrate is heated mainly by convection, inducing the mobilisation of contaminants and volatilisation of the compounds within the aquifer. The temperature is continually monitored as it permeates into the saturated zone,.

Steam injection remediation of Contaminated Groundwater or Soil by Steam Injection can also be achieved by mobilising viscous contaminants at temperatures of under 100 degress. Harmful contaminants such as such as heavy oils in soil and groundwater can then be recovered in a more efficient fashion when compared to other technologies. The inclusion of temperature monitoring points distributed vertically and laterally throughout the formation along with an in-line GC-FID and remote telemetry enables us to provide daily advice and recommendations as required.

Steam Injection Remediation

Visit our Steam Injection Remediations page to read our case studies

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Treatment of PFC Contaminants – PerfluorAd

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Combating PFC Contaminated Water

Over the course of the last 9 years, Cornelsen has been leveraging it’s expertise in the design and implementation of water treatment technologies together with the UMSICHT Fraunhofer Institute to develop a new technically efficient and economical treatment process for Perflourinated and Polyflourinated chemicals (PFC).

These PFCs are fluorinated organic compounds in which the hydrogen atoms of the hydrocarbon skeleton are substituted fully by fluorine atoms. For this reason, they are among the strongest organic compounds and thus considered non-degradable because they persist for a long time in the environment. Their toxicological importance should not be underestimated.

Cornelsen is pleased to announce the launch our new treatment technology for the treatment of PFC contaminants; PerfluorAd.

To date, adsorption (generally on activated carbon) was the only technically feasible method to treat PFC-contaminated water. However, PFCs are typically considered to absorb poorly as the residence time required within the activated carbon filters renders the process impractical and costly.

Treatment of PFC Contaminants with PerfluorAd

Cornelsen’s PerflourAd ingredient on the contrary is injected as a liquid into the flowing water within a stirring reactor vessel. The liquid form of the ingredient leads to a high degree of contact with the contaminant to which it can readily bond with and precipitate the PFC compounds.

This approach affords the opportunity to flexibly adjust the quantity and application method of the additive to changing conditions within the untreated water. This permits optimisation of the process to target concentration levels and therefore optimise cost.

Click Here for more information

Steam Injection Remediation UK

Enhancing Sustainability of Vapour Phase Activated Carbon

Increasing the Efficiency and Sustainability of Vapour Phase Activated Carbon

The performance of activated carbon is of course variable depending on the contaminant.  Some organic compounds adsorb to vapour phase activated carbon very efficiently indeed, sometimes in excess of 40% weight for weight, others conversely adsorb very poorly.  For vapour phase activated carbon the efficiency of adsorption is also greatly influenced by humidity and temperature.  The efficacy and indeed viability of the treatment approach therefore depends not just on the contaminant and it’s concentration but also on the condition of the vapour in which it is carried.  It also depends on the mass expected.

Activated carbon in vessels situated outside in ambient weather conditions will perform very badly in cold weather as the vapour cools.  Condensation will cause accumulation of water in the vessels and water vapour will preferentially adsorb to the carbon at the cost of the contaminant.  A worst case scenario could be an air stripper or multi-phase extraction system delivering wet warm air to a cold carbon vessel.

Likewise, consider the activated carbon isotherm for a given contaminant at different temperatures.  The higher the temperature, the less efficient the contaminant uptake.  A soil vapour extraction  system, and in particular a multi-phase extraction system will inherently heat up the extracted soil gas through the system.  The harder the blower or pump is working the hotter the discharged soil gas will be.  The temperature of soil gas discharged from an SVE system can quite typically be in the region of 40oC.  A hard working MPE system can heat the extracted soil gases to 80 oC.  Depending on the contaminant this can very significantly reduce the activated carbon performance.

Vapour Conditioning System Developed by Cornelsen

Cornelsen has developed a vapour conditioning system wherein extracted soil gases discharged from the SVE or MPE system (or air stripper) are cooled, moisture is condensed out and then the gases are reheated to ensure that the relative humidity is below 70%, thus preventing water vapour using up the activated carbon pore spaces.

A simple cost benefit analysis considering the additional process plant vs the consumption of activated carbon will quickly inform the project team of the relative value of vapour conditioning.

In 2013/2014 Cornelsen undertook two projects where the benefit of deploying vapour conditioning prior to the activated carbon could be measured in terms of several hundred thousand pounds.  Both projects involved dichloromethane which adsorbs relatively poorly to vapour phase activated carbon.  As one of those projects entail steam injection, two vapour conditioning systems were required.  One system was installed at the inlet of the SVE system to cool the gases to a safe temperature within the operational limit of the blower (Note normally this will be 40oC), then a second system at the discharge given the inevitable heat increase which occurs by energy transfer through the blower.

Contact Cornelsen for a Cost Benefit Analysis

The cost and benefits are easy to assess and the solution quite simple to deliver.  The choice between vapour conditioning vs increased activated carbon consumption can be as simple as straight maths.  The added sustainability associated with the use of less activated carbon and all the transport and works associated with changing the carbon are similarly persuasive.  Conversely, where the contaminant mass is low the poor performance may have little impact on the overall volume of activated carbon required and therefore the costs may exceed the benefit.  The same may be true for organic contaminants which inherently adsorb more efficiently.

In summary, we recommend a simple cost benefit analysis based on isotherms obtained from activated carbon suppliers at different temperatures.  Cornelsen will be pleased to assist in the cost benefit analysis and in the provision of the cooling/warming and heat exchange equipment. Use the Contact Form to send us a message today.

Stean Injection RemediationTechnologies

Steam Injection Remediation

Steam Injection Remediation by Cornelsen

With UK project experience delivering both in-situ thermal desorption (ISTD) and steam injection remediation systems, developed over the course of the last 7 years, Cornelsen undertook its second major steam injection project in the UK in 2014.

Compressed Air and Steam

Unlike conventional steam injection, Cornelsen, together with our partner Reconsite GmbH delivers a steam/compressed air mix.

Advantages of this process include:

  • Increasing the efficiency of heat propagation through the formation by convection;
  • More efficient mass removal;
  • Reducing the risk of dispersing the contaminant plume by a condensing steam front as the water/contaminant mix evaporates quickly into injected air at temperatures well below 100 oC (the point of steam distillation).

Cornelsen personnel operated and optimise the remediation system continuously throughout the project and successfully met the performance parameters of our client and the operational up time requirements of 95%.  Another steam injection project is currently underway in Berlin, Germany.

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All steam injection systems and process plant is available ex stock for rapid mobilisation.  This includes all the necessary cooling and heat exchange plant as well as critical safety equipment.  No system installation will be completed without a detailed Hazard and Operability study (HAZOP) which we would expect to undertake together with our client.  Thereafter, all system infrastructure including pipework, electrical supply, control systems and safety systems are undertaken in house by Cornelsen engineers.

Cornelsen Expansion

Company News 2015 Cornelsen Expansion

2014 was Cornelsen’s busiest year.  This included the recruitment of two new engineers and our second apprentice engineer; our previous apprentice Ben now being a fully qualified Service Engineer and PLC programmer.

September 2014 also saw us break ground on a new office and workshop facility near Bristol.   This new development allows us to centralize all our UK process plant at a secure yard contained within our own new premises and provides excellent new workshop facilities for our mechanical and electrical engineers.  Together with our new office space, these new facilities will enable us to provide a higher level of service to our clients through greater efficiency in storage, maintenance and construction, whilst simultaneously providing us with a firm footing and the space for continued growth.

Purpose-built facility designed with a clear identity

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• Construction of a new building with a footprint of 476m².
• New office accommodation of 145m², with potential for an additional mezzanine floor to allow for further growth.
• Workshop provided for the repair and maintenance of plant and equipment.
• External storage area and service yard.