Locating and quantifying fugitive
and diffuse emissions
Greenhouse Gases & Climate diagnosis
Atmospheric emissions are an increasing concern, posing challenges for air quality and global warming. For that reason, we public authorities and industries have supported addressing these challenges by developing solutions diagnostic of these emissions.
ClimateAdvanced® Study
An essential study to understand and control greenhouse gas emissions from industrial facilities.
ClimateAdvanced® Study is used to detect sources and leaks of greenhouse gas emissions in order to implement actions to reduce your environmental footprint.
Thanks to the data measured at your facility, you will be able to accurately identify and understand your GHG emissions and take action to reduce them.
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Climate change is no longer a distant threat: it is already affecting your projects, infrastructures, and investments. Anticipating these risks is no longer optional, but a key condition for performance and long-term sustainability.
We provide you with recognised expertise to turn climate constraints into drivers of action and resilience. Our solutions cover the entire risk management cycle:
Analysis & forecasting
leveraging reliable data to build clear and actionable scenarios
Risk assessment
identifying vulnerabilities and protecting your strategic assets
Adaptation planning
designing tailored strategies and strengthening your response capacities
Implementation & monitoring
embedding climate considerations into your decisions and ensuring effective long-term project management
With projects already carried out across Africa, Europe, the Americas, and Oceania, we have supported governments, financial institutions, and businesses in reducing climate risks (floods, wildfires, critical infrastructure exposure) and developing digital decision-support tools.
Our commitment: to provide you with reliable, innovative, and practical solutions that protect your investments, secure your projects, and ensure their resilience in the face of climate challenges.
Greenhouse Gases & Climate treatment
As part of our commitment to reducing atmospheric emissions, we have developed Climate Advanced® Treatment solutions for the treatment of atmospheric emission as well as greenhouse gases such as N2O produced in wastewater treatment plants. We also offer solutions for biogas pretreatment and upgrading to biomethane.
ActiLayer
Innovative solution for the treatment of greenhouse gases such as N2O, as well as odorous compounds from surface sources, such as H2S and VOCs.
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Main benefits: low-maintenance technology that removes a wide range of pollutants with efficiencies up to 80% and consumes no energy. A cost-effective and sustainable option.
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Business sector addressed: Waste and Water facilities, Food & Beverage, etc.
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Time to implement: 20 weeks
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Drying and conditioning of biogas
System designed to dehumidify biogas for valorisation. The company supplies the necessary cooling systems to condense the humidity, as well as heat exchangers, droplet separators, and even other subsequent heat exchangers if they are necessary to reheat the gas.
- Main benefits:
• Enhances gas quality by removing moisture and impurities.
• Prevents corrosion in storage and transport systems.
• Boosts biogas energy value through effective conditioning.
• Offers long-term cost benefits by increasing system efficiency and durability. - Business sectors addressed: energy sector, waste management and recycling, agriculture and farming, industrial sector, transportation, utilities and food processing industry….
- Time to implement: 1 week
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Biogas desulfurisation
Chemical-regenerative system for efficient H2S removal from biogas with high H2S concentrations.
- Main benefits
• Capable of treating biogas flows between 50–5,000Nm3 /h.
• Capable of treating H2S concentrations up to 20000ppm.
• High scrubbing efficiency, obtaining biogas streams with an H2S concentration at the outlet of less than 100 ppm.
• Very low OPEX.
• Easy maintenance. - Business sectors addressed: renewable energy industry, wastewater treatment industry, agricultural industry, waste management industry, biogas technology industry…
- Time to implement: 2 weeks
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Biogas siloxanes removal system
Thermally regenerable adsorption system designed to efficiently remove high concentrations of VOCs and siloxanes from biogas, reducing operational costs compared to activated carbon.
- Main benefits:
• 90% removal of volatile organic compounds (VOCs).
• 99% removal of siloxanes.
• - 165KWh electricity consumption during medium regeneration.
• Extremely low-pressure drop, <5 mbar, eliminating the need for additional gas compression
• Easy maintenance and operation - Business sectors addressed: biogas production plants, waste treatment plants, landfills…
- Time to implement: 2 weeks
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Biogas upgrading with Amines
We offer biogas upgrading solutions using CApure™ — a 4th-generation amine-based technology. This low-pressure, closed-loop system enables efficient biomethane production for grid injection, vehicle fuel, or liquefaction, with minimal amine replacement (once per year).
- Main benefits:
• Achieves up to 99.9% methane recovery without propane enrichment.
• Simultaneously removes H₂S and siloxanes for cleaner, safer gas.
• >99.95% CH4 recovery rate This implies a low CH4 loss (<0.05%). The off-gas is enriched in CO2 and can be valorised
• >95% Heat recovery, making it available for use in other processes.
• Low electricity consumption ~0.15 kWh/Nm3. CApureTM includes a heat recovery system that reduces electrical energy requirements by up to 95%.
• Adapted to variable biogas compositions with consistent performance.
• Integrated heat recovery lowers energy use by up to 50%, reducing operational costs. - Business sectors addressed: energy sector, waste management and recycling, agriculture and farming, industrial sector, transportation, utilities and food processing industry…
- Time to implement: 6 weeks
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Biogas upgrading with Cryogenics
Solution using CryoFuel® technology. This cryogenic process separates gas components based on their condensation temperatures, enabling efficient enrichment.
- Main benefits:
• The purity of captured CO2 exceeds 99.5%, enabling food-grade CO2 production.
• A biomethane stream with 99.9% purity, ready for conversion to LNG without additional polishing stages.
• 70-4.000 Nm3/h Wide operating range for biogas flow rates.
• Delivers high-purity biomethane for grid injection, CNG, or LNG applications.
• Combines upgrading, BioCO₂ liquefaction, and BioLNG production in one streamlined system.
• Reduces CAPEX and OPEX through process integration and energy optimisation. - Business sectors addressed: energy sector, waste management and recycling, agriculture and farming, industrial sector, transportation, utilities and food processing industry…
- Time to implement: 6 weeks
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Upgrading with membranes
Advanced biogas upgrading using the VALOPUR® membrane system. This technology separates CH4 from CO2 based on their different permeation rates, delivering high-purity biomethane.
- Main benefits:
• Achieves >99% biomethane purity from diverse biogas sources (WWTP, MSW, agro-waste).
• <1% methane loss in off-gas.
• Low electricity consumption, ~0.3 kWh/Nm3.
• Removes impurities like H2S, VOCs, siloxanes, and moisture with no water consumption.
• Clean and efficient process with minimal emissions (CO2 off-gas and condensates).
• Low OPEX thanks to reduced energy use and minimal maintenance requirements. - Business sectors addressed: wastewater treatment industry, municipal solid waste management industry, agricultural industry, renewable energy industry, natural gas industry and transportation industry…
- Time to implement: 6 weeks
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Biogas upgrading with PSA
Biogas upgrading solution using SmartCycle® PSA technology. This system separates CO2 and other impurities through pressure swing adsorption, producing high-quality biomethane equivalent to natural gas.
- Main benefits:
• Consistently delivers up to 99% methane purity, adaptable to variable biogas conditions.
• Industry-leading uptime (>99%) and ultra-low energy use (<0.252 kWh/Nm3).
• >15 years service life of the adsorbent media.
• Low electrical consumption, ~0.16 kWh/Nm3.
• Integrated nitrogen removal enhances landfill gas upgrading performance.
• Recovered CO2 can be utilised directly or liquefied for transport.
• A fully automated process ensures stable biomethane output with minimal operator intervention. - Business sectors addressed: wastewater treatment industry, municipal solid waste management industry, agricultural industry, renewable energy industry, natural gas industry, transportation industry…
- Time to implement: 6 weeks
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Greenhouse Gases & Climate monitoring
To support the decarbonisation of waste management, we offer a cutting-edge solution that enables continuous monitoring of methane (CH4) and nitrous oxide (N2O) emissions at waste treatment plants - empowering operators to understand and reduce their environmental impact.
Real-time monitoring of GHG emissions is essential for optimising environmental performance. Our solution allows operators to:
- Track emissions both spatially and temporally
- Optimise biogas capture and methane recovery, contributing to energy sustainability
- Minimise odor-related nuisances for surrounding communities
Technological components
In situ monitoring stations
These stations measure ambient concentrations of CH₄ and N₂O directly in the vicinity of the site, supporting efforts to reduce emissions
Advanced atmospheric modelling
Using our proprietary PMSS models, we simulate how emissions disperse in the atmosphere, factoring in local meteorological data to enhance efficiency and accuracy
Real-time data analysis
State-of-the-art algorithms quantify emissions, including GHG emissions, continuously, based on real-time air quality data, providing actionable insights to support carbon mitigation strategies
ClimateAdvanced® Sentinel platform
All data is visualised and accessible through our intuitive digital platform, giving operators actionable insights at a glance. By integrating these technologies, we help operators achieve sustainable management of waste treatment plants, contributing to reducing global emissions and supporting the fight against climate change
References
Supply and commissioning of a biogas upgrading system (Barcelona)
In June 2021, the energy company NATURGY became a pioneer in injecting renewable gas, or biomethane, into Spain's gas distribution network from landfill gas. This facility, located in Parc de l’Alba in Cerdanyola del Vallès (Barcelona), next to the controlled Elena landfill, was made possible through the use of the VALOPUR® membrane biogas upgrading system. The plant will produce 12 GWh of biomethane annually.
Treatment and removal of siloxanes in biogas (Jerez de la Frontera)
Engineering of a siloxane removal treatment system for biogas.
The BGAK system is an adsorption technology that reduces siloxane concentrations to levels suitable for biogas utilisation in a cogeneration engine. It regenerates in situ using air, resulting in significantly lower operating costs compared to alternative technologies such as activated carbon adsorption filters.
The BGAK system is an adsorption technology that reduces siloxane concentrations to levels suitable for biogas utilisation in a cogeneration engine. It regenerates in situ using air, resulting in significantly lower operating costs compared to alternative technologies such as activated carbon adsorption filters.
Inspection of diffuse emissions of VOCs (Barcelona)
Ercros is an industrial group leader in exports worldwide with 3 business areas: chlorine derivatives, chemical intermediates and pharmaceuticals. A VOC leak inspection project was carried out in tanks, valves, vents and pipelines. Application of an LDAR program.
Climate: Mauritania 2022
Preparation for adaptation financing Green Funds.
- Climate projections to 2050 and 2100.
- Climate risk assessment for 4 regions
- Proposals to consolidate the country's climate services.
Benefits:
- Enabled access to the Green Fund: $34 million
Air quality and climate: Cairo, 2024-2025 (ongoing)
Decrease both air pollution and greenhouse gases and adapte to extreme events.
- Scenarios for reducing emissions.
- Development of a response mechanism for climate and air quality emergencies.
- Capacity building and knowledge transfer.
Benefits targeted
- GHG reduction: -30% in waste sector, -23% in public buses.
- Action plan: emergency measures + long-term scenarios with economic and health benefits.
- Support to Ministry: improved governance and capacity building.
Adapt’Action: contribution to the preparatory phase of the national adaptation plan of Tunisia
Analysis of the impact of climate scenarios on food security including natural resources:
- Review of the literature;
- production of a set of climate change projections at high resolution (downscaling of EURO-CORDEX data at 5 km resolution, production of the reference climatology, exposure and vulnerability indices computation) based on the existing data provided and recommended by the Tunisian National Meteorological Institute.
- Quantitative analysis of climate evolutions and their impact on food security and natural resources including mapping of exposure indices and the characterisation of climate hazard in present-day and future conditions.
Assessing climate vulnerability on food security:
- Quantifying and mapping the impacts of climate change on the yields but also on the spatial distribution of the agroclimatic zones for cereals, olives and pastoral resources that contribute to the food security of the country;
- Identifying and classifying the main impacts of climate change on food security
- Organizing and conducting participatory workshops to identify adaptation options.
Producing climate scenario and climate risk assessment for Africa
The project includes 3 main tasks:
- The development of downscaled or area-based climate change projections;
- The production of ecosystem based climate risk assessments for first-order and second-order risk domains;
- The development of national climate services.
The project will benefit to 15 countries in Africa: Malawi, Ghana, Uganda, Lesotho, Nigeria, Seychelles, Swaziland, Zimbabwe, Eritrea, Gambia, Cameroon, Mauritania, Togo, Angola, Sao Tome.
We have defined a very flexible methodology including quantitative, semi-quantitative and qualitative approaches in order to adapt our methods and their output to the needs of the governments; their objectives and the capacities of each country
