Ask us a question

    Chemical company saves millions of euros through monitored natural attenuation, Germany 

    A chemical company wanted to develop a former plant factory site in western Germany for commercial and residential use. The plant ceased production in the 1990s after a long operational history. Contaminated soil from the large-scale site had been excavated and stored in former tank-farm areas with sheet-pile walls and rain covers, and the land had been developed. However, at one of the two deposits, significant residual soil contamination outside the sheet-pile walls releases cancerous-causing chemicals, such as polycyclic aromatic hydrocarbons and benzene, and total petroleum hydrocarbons into the groundwater. The company had set aside tens of millions of euros for active groundwater remediation, but, before work began, it learned of a more cost-effective potential alternative at an RSK Alenco seminar: monitored natural attenuation (MNA).

    RSK Alenco applied its alternative remediation programme to the site, thus demonstrating to the regulator that the groundwater contamination was being naturally attenuated and active measures such as cost-intensive pump-and-treat systems were not necessary. To do this, the RSK Alenco team developed a detailed, risk-based-MNA concept. The contaminants and hydrogeological conditions were investigated, and a network of 19 boreholes monitored the groundwater contamination levels, but low-flow rates prevented the use of standard groundwater sampling methods. To overcome this, the team persuaded the regulator to allow low-flow sampling using specialist micropurge equipment with bladder pumps.

    The results demonstrated that the contaminant plume was not spreading, and natural attenuation was controlling it. The regulator agreed to the MNA concept, thereby avoiding the costly active remediation. More than 15 years of monitoring has confirmed the initial assessment that the contaminated soil is better contained and poses no risk to residents’ health.

    RSK’s tailor-made solution was the correct approach for the client, and it saved the client substantial costs. By persuading the regulator to allow MNA to continue, the chemical company avoided remediation measures that otherwise would have cost tens of millions of euros.

    • Location: Germany
    • Project status: Completed
    • Clear filters
    Found 212 Results
    Page 1 of 18
    Supporting the creation of a new garden village in Cheshire
    View Project
    Repairing lightning damage on a wind turbine in Scotland
    View Project
    Helping Singapore meet its future waste disposal needs
    View Project
    Designing and assessing an onshore wind farm in the Highlands of Scotland
    View Project
    Designing and assessing proposed windfarms in Scotland
    View Project
    Environmental and social risk appraisal support for African “power-to-x” development
    View Project
    Consulting on the construction of the Keppel Marina East Desalination Plant, Singapore
    View Project
    Bringing international best practice and process to phase 2 of Singapore’s Deep Tunnel Sewerage System
    View Project
    Facilitating renewable energy investments in Europe
    View Project
    Ensuring shale gas projects for Poland and beyond
    View Project
    Providing award-winning storm water solutions for urban flooding challenges
    View Project
    Upgrading sewage treatment facilities to serve community needs in Hong Kong
    View Project

    💧 Actively restoring rivers by reinstating natural river processes will play a vital role in helping offset the global freshwater biodiversity crisis.

    💡 In this insight, Dr Hamish Moir and Peter Downs from @cbec_eco_engineering_uk, an RSK company, explore how sustainable approaches to river management can help protect us from flooding and droughts.

    Read more in our bio!

    #Biodiversity #Climate #Water #ClimateChange #ClimateCrisis #Floods #Droughts
    ...

    👏 Grace Kassimoto is the only acoustic specialist from and working in East Africa.

    💚 In our latest #ADayInTheLife, she discusses how she is leading the way for women in a traditionally male-dominated industry and what she enjoys most about her role.

    Read her story in our bio!

    #Acoustics #Environment #WomenInStem #Engineering #Leadership #Africa
    ...

    📢 We are proud to sponsor the #GreenEnergyAwards 2022, an event organized by Scottish Renewables

    🏆 This ceremony aims to recognise the inspirational organisations, people and projects going above and beyond to make a real difference to the health, wealth, and wellbeing of Scotland

    We can't wait to see you there!

    📅 1st December 2022
    📍 Edinburgh

    #RenewableEnergy #Renewables #Scotland #Energy #GreenEnergy #Awards
    ...

    📸 #selfiesonsite 🤳

    Tom Peart, Principal Surveyor at @centara_ltd, out on-site in Rotherham.

    Want to join our team? View our latest opportunities 👉 www.rskgroup.com/careers

    #RSKgroup #behindthescenes #meettheteam #RSKfamily #RSKonsite #culture #construction
    ...

    🐟 Concern was recently raised in France with regards to the health of marine ecosystems.

    📌Join RSK France's webinar, in collaboration with law firm Franklin and TechWorks Marine, to discuss the sustainable support of renewable energy in the marine environment.

    Register now in our bio!

    #RenewableEnergy #Environment #Marine #Nature #Compliance #Energy #GreenEnergy
    ...

    📢 November is a month dedicated to men’s health.

    🌍 On November 19th, we celebrated #InternationalMensDay, a global holiday that highlights the positive value men bring to the world.

    🤝 This year, men around RSK are taking part in #Movember, an initiative that involves growing a moustache during November to raise awareness of men’s health issues.

    💚 We want to thank Greg Cole, James May, Jiano Pulickal, Matthew Bayliff, Maxwell Robinson, Sam Oakley, Tom Llewellyn, Tom Semmens and Yusuf Aoulad-Ali for participating in this great initiative!

    #Wellbeing #MensHealth #MentalHealth #WorkCulture #Culture
    ...