These BAT conclusions apply to the following activities specified in schedule 1 of the Pollution Prevention and Control (Scotland) Regulations 2012:

• 5.3(a) recovery by distillation of oil or organic solvents, other than as part of an activity described in any other section of this chapter

• 5.3(b). Disposal or recovery of hazardous waste with a capacity exceeding 10 tonnes per day involving one or more of the following activities:

(i) biological treatment;

(ii) physico-chemical treatment;

(iii) blending or mixing prior to submission to any of the other activities listed in this section or in section 5.1;

(iv) repackaging prior to submission to any of the other activities listed in this section or in section 5.1;

(v) solvent reclamation/regeneration;

(vi) recycling/reclamation of inorganic materials other than metals or metal compounds;

(vii) regeneration of acids or bases;

(viii) recovery of components used for pollution abatement;

(ix) recovery of components from catalysts;

(x) oil re-refining or other reuses of oil;

(Note that 5.3A(xi) surface impoundment is not covered by the WT BRef.)

• 5.4. (a) Disposal of non-hazardous waste with a capacity exceeding 50 tonnes per day involving one or more of the following activities,:

(i) biological treatment;

(ii) physico-chemical treatment;

(iii) pre-treatment of waste for incineration or co-incineration;

(iv) treatment of ashes;

(v) treatment in shredders of metal waste, including waste electrical and electronic equipment and end-of-life vehicles and their components.

• 5.4 (b) Recovery, or a mix of recovery and disposal, of non-hazardous waste with a capacity exceeding 75 tonnes per day involving one or more of the following activities,:

(i) biological treatment;

(ii) pre-treatment of waste for incineration or co-incineration;

(iii) treatment of ashes;

(iv) treatment in shredders of metal waste, including waste electrical and electronic equipment and end-of-life vehicles and their components.

With regards to activity 5.4(b)(i) – when the only waste treatment activity carried out is anaerobic digestion, the capacity threshold for this activity shall be 100 tonnes per day.

• 5.6. Temporary storage at an installation with a capacity of more than 50 tonnes of hazardous waste pending any of the activities described in any of sections 5.1 to 5.3 and paragraph (b) of this Section, excluding temporary storage, pending collection, on the site where the waste is generated.

• 5.7. Independently operated treatment of waste water not covered by Directive 91/271/EEC and discharged by an installation undertaking activities covered under points 5.1, 5.3 or 5.5 as listed above

Referring to independently operated treatment of waste water not covered by Directive 91/271/EEC above, these BAT conclusions also cover the combined treatment of waste water from different origins if the main pollutant load originates from the activities covered under points 5.3(b), 5.4 or 5.6 as listed above.