What emissions control system would the replacement facility have?
The replacement facility will have even better emission control than the existing plant does now. The current plant operates at almost 20% below permitted levels of NOx. The replacement facility will operate at more than 60% below.
There are a number of flue gas cleaning systems we can choose from. We are proposing to use a wet or combined flue gas cleaning system. Both systems:
• are effective at cleaning the flue gas;
• have greater flexibility in handling variations in the flue gas; and
• require fewer chemicals to operate.
One of the key emissions from the energy recovery process is nitrogen oxides (NOx) which contribute to air pollution. There are a number of treatment technologies with the most effective being Selective Catalytic Reduction which achieves emission levels of less than half the permissible level. For this reason, we are proposing to install a Selective Catalytic Reduction system which will convert NOx into nitrogen and water, both of which are harmless.
The system provides the following advantages:
• it is the most effective technology available for NOx removal;
• its installation within the replacement facility would make it amongst the best performing in Europe; and
• it will help to future proof the facility against changes to emissions limits.
Surrounding local authorities – Enfield, Haringey and Waltham Forest – all carry out air quality monitoring. They have all taken part in the consultation process.
There is more information on emission controls, including diagrams, in our consultation booklet.
Find out more about emissions health and emissions