Division 1.2 Monitoring

United Kingdom

BAT 3. For relevant emissions to water as identified by the inventory of waste water streams (see BAT 2), BAT is to monitor key process parameters (e.g. continuous monitoring of waste water flow, pH and temperature) at key locations (e.g. at the inlet and/or outlet of the pre-treatment, at the inlet to the final treatment, at the point where the emission leaves the installation).

BAT 4. BAT is to monitor emissions to water with at least the frequency given below and in accordance with EN standards. If EN standards are not available, BAT is to use ISO, national or other international standards that ensure the provision of data of an equivalent scientific quality.

Substance/parameter	Standard(s)	Minimum monitoring frequency ^f1	Monitoring associated with
The monitoring only applies when the substance concerned is identified as relevant in the waste water stream based on the inventory mentioned in BAT 2.
The monitoring only applies in the case of a direct discharge to a receiving water body.
TOC monitoring and COD monitoring are alternatives. TOC monitoring is the preferred option because it does not rely on the use of very toxic compounds.
If the emission levels are proven to be sufficiently stable, a lower monitoring frequency can be adopted but in any case at least once every month.
Chemical oxygen demand (COD) ^f2 ^f3	No EN standard available	Once every day ^f4	BAT 12
Total nitrogen (TN)	Various EN standards available (e.g. EN 12260, EN ISO 11905-1)
Total organic carbon (TOC)	EN 1484
Total phosphorus (TP)	Various EN standards available (e.g. EN ISO 6878, EN ISO 15681-1 and -2, EN ISO 11885)
Total suspended solids (TSS)	EN 872
Biochemical oxygen demand (BOD_n)	EN 1899-1	Once every month
Chloride (Cl^-)	Various EN standards available (e.g. EN ISO 10304-1, EN ISO 15682)	Once every month	—

BAT 5. BAT is to monitor channelled emissions to air with at least the frequency given below and in accordance with EN standards.

Substance/Parameter	Sector	Specific process	Standard(s)	Minimum monitoring frequency ^f5	Monitoring associated with
The measurements are carried out at the highest expected emission state under normal operating conditions.
If the emission levels are proven to be sufficiently stable, a lower monitoring frequency can be adopted but in any case at least once every year.
The measurement is carried out during a campaign of two days.
The monitoring only applies when a thermal oxidiser is used.
Dust	Animal feed	Drying of green fodder	EN 13284-1	Once every three months ^f6	BAT 17
		Grinding and pellet cooling in compound feed manufacture		Once every year	BAT 17
		Extrusion of dry pet food		Once every year	BAT 17
	Brewing	Handling and processing of malt and adjuncts		Once every year	BAT 20
	Dairies	Drying processes		Once every year	BAT 23
	Grain milling	Grain cleaning and milling		Once every year	BAT 28
	Oilseed processing and vegetable oil refining	Handling and preparation of seeds, drying and cooling of meal		Once every year	BAT 31
	Starch production	Drying of starch, protein and fibre		Once every year	BAT 34
	Sugar manufacturing	Drying of beet pulp		Once every month	BAT 36
PM_2.5 and PM₁₀	Sugar manufacturing	Drying of beet pulp	EN ISO 23210	Once every year	BAT 36
TVOC	Fish and shellfish processing	Smoke chambers	EN 12619	Once every year	BAT 26
	Meat processing	Smoke chambers			BAT 29
	Oilseed processing and vegetable oil refining ^f7	—			—
	Sugar manufacturing	High-temperature drying of beet pulp		Once every year	—
NO_X	Meat processing ^f8	Smoke chambers	EN 14792	Once every year	—
NO_X	Sugar manufacturing	High-temperature drying of beet pulp	EN 14792
CO	Meat processing	Smoke chambers	EN 15058
CO	Sugar manufacturing	High-temperature drying of beet pulp	EN 15058
SO_X	Sugar manufacturing	Drying of beet pulp when natural gas is not used	EN 14791	Twice every year	BAT 37

Annotations

Footnotes

f1: The monitoring only applies when the substance concerned is identified as relevant in the waste water stream based on the inventory mentioned in BAT 2.
f2: The monitoring only applies in the case of a direct discharge to a receiving water body.
f3: TOC monitoring and COD monitoring are alternatives. TOC monitoring is the preferred option because it does not rely on the use of very toxic compounds.
f4: If the emission levels are proven to be sufficiently stable, a lower monitoring frequency can be adopted but in any case at least once every month.
f5: The measurements are carried out at the highest expected emission state under normal operating conditions.
f6: If the emission levels are proven to be sufficiently stable, a lower monitoring frequency can be adopted but in any case at least once every year.
f7: The measurement is carried out during a campaign of two days.
f8: The monitoring only applies when a thermal oxidiser is used.