Article 2U.K.
For the purposes of this Directive:
‘sludge’ means:
residual sludge from sewage plants treating domestic or urban waste waters and from other sewage plants treating waste waters of a composition similar to domestic and urban waste waters;
residual sludge from septic tanks and other similar installations for the treatment of sewage;
residual sludge from sewage plants other than those referred to in (i) and (ii);
‘treated sludge’ means:
sludge which has undergone biological, chemical or heat treatment, long-term storage or any other appropriate process so as significantly to reduce its fermentability and the health hazards resulting from its use;
‘agriculture’ means:
the growing of all types of commercial food crops, including for stock-rearing purposes;
‘use’ means:
the spreading of sludge on the soil or any other application of sludge on and in the soil.