![SCR single module aftertreatment](https://dieseltraining.net/wp-content/uploads/2021/04/Single-Module-image-1-1024x7241-1-e1617526521974-300x127.jpg)
![SCR single module aftertreatment](https://dieseltraining.net/wp-content/uploads/2021/04/Single-Module-image-1-1024x7241-1-e1617526521974-300x127.jpg)
Why do we need SCR systems?
Due to new, stricter emission legislation, all new Diesel engines need to be equipped with a special catalyst (SCR) to reduce harmful NOx emissions to Water, Nitrogen and Carbon Dioxide. Sounds easy? Well… it’s not that simple. Keep reading to understand why!