Division 7
United Kingdom
BAT is to carry out monitoring of emissions and/or other relevant process parameters on a regular basis, including the following:
| Technique | Applicability |
|---|---|
| (i) Continuous monitoring of critical process parameters to ensure process stability, e.g. temperature, fuel feed and airflow | The techniques are generally applicable |
| (ii) Regular monitoring of process parameters to prevent/reduce pollution, e.g. O2 content of the combustion gases to control the fuel/air ratio. | |
| (iii) Continuous measurements of dust, NOX and SO2 emissions or discontinuous measurements at least twice per year, associated with the control of surrogate parameters to ensure that the treatment system is working properly between measurements | |
| (iv) Continuous or regular periodic measurements of NH3 emissions, when selective catalytic reduction (SCR) or selective non-catalytic reduction (SNCR) techniques are applied | The techniques are generally applicable |
| (v) Continuous or regular periodic measurements of CO emissions when primary techniques or chemical reduction by fuel techniques are applied for NOX emissions reductions or partial combustion may occur. | |
| (vi) Regular periodic measurements of emissions of HCl, HF, CO and metals, in particular when raw materials containing such substances are used or partial combustion may occur | The techniques are generally applicable |
| (vii) Continuous monitoring of surrogate parameters to ensure that the waste gas treatment system is working properly and that the emission levels are maintained between discontinuous measurements. The monitoring of surrogate parameters includes: reagent feed, temperature, water feed, voltage, dust removal, fan speed, etc. |