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Air emission

Air emission control in respect of organic or inorganic components is becoming an ever greater challenge in today’s industrialised world. It can involve components that give rise to a pervasive odour, or that exceed the VOC emission directive in the manufacturer’s operating permit.


In order to convert biogas into electric power, reusable heat or biomethane (RNG, Renewable Natural Gas), the gas needs to be purified first. This will avoid gas engine problems and contemporarily may result into a gas quality superior to 99% CH4 , which renders the gas suitable for injection into the natural gas grid. Typical components for elimination are H2S and siloxanes from landfill gas for instance, or H2S and terpenes from fermentation gas.


Soil and/or groundwater may be contaminated anywhere there is or has been industrial activity. It often involves historic contamination, which dates back long before there was any question of enforceable environmental legislation.

Waste water

Water is often required when we want to manufacture something. This water will become contaminated during the production process: it results in wastewater that cannot be simply discharged back into the environment.  Wastewater produced in this way will then require to be treated before it can be discharged into a sewer or surface water, or indeed re-used.


Plants manufacture products. Certain reactions may occur during the manufacturing process that can give rise to undesirable contamination of the end-product. On the other hand, certain products may fail to meet the requirements of the manufacturing process.