Case C‑629/19 Sappi Austria Produktions-GmbH & Co. KG and Wasserverband ‘Region Gratkorn-Gratwein’ v Landeshauptmann von Steiermark in which the CJEU held on Wednesday is in my off the cuff view (I did not research it in the recent case-law) the first case where the CJEU specifically mentions the objectives of the circular economy to support its interpretation of the core definition of ‘waste’ in the Waste Framework Directive 2008/98.
Sappi operate a large industrial paper and pulp production plant in Gratkorn (Austria). On that site is also a sewage treatment plant, operated jointly by Sappi and the Wasserverband, which treats waste water from paper and pulp production as well as municipal waste water. During the treatment of that waste water, which is required by national law, the sewage sludge in question in the main proceedings arises. That sludge is therefore made up of both substances from industrial waste water and substances from municipal waste water. Sewage sludge which is produced in the sewage treatment plant is then incinerated in a boiler of Sappi and in a waste incineration plant operated by the Wasserverband, and the steam reclaimed for the purposes of energy recovery is used in the production of paper and pulp. hat authority found that, admittedly, the majority of the sewage sludge used for incineration, namely 97%, originated from a paper production process and that this proportion could be regarded as having ‘by-product’ status within the meaning of Paragraph 2(3a) of the AWG 2002. However, that does not apply to the proportion of sewage sludge arising from municipal waste water treatment. That sewage sludge remains waste. Since there is no de minimis limit for the classification of a substance as ‘waste’, the authority assumed that all the sewage sludge incinerated in the industrial plants of Sappi and of the Wasserverband must be classified as ‘waste’.
The CJEU first of all holds that there is no relevant secondary law which provides the kinds of qualitative criteria for sewage sludge to meet with the objectives of the WFD. If there were such laws, and the sludge meets their requirements, it would be exempt form the WFD. It then reminds the referring court, of course, of the extensive authority on the notion of waste (most recently C-624/17 Tronex) yet is happy to provide the national Court with input into the application in casu.
In principle, the sludge is waste, the Court holds: it is a residue from waste water treatment and it is being discarded.
However, the referring judge suggests that the sludge may meet the requirements of A6(1) WFD as being fully ‘recovered’ before it is used in the incineration process. It is there that the CJEU refers to the circular economy: at 68:
it is particularly relevant that the heat generated during the incineration of the sewage sludge is re-used in a paper and pulp production process and that such a process provides a significant benefit to the environment because of the use of recovered material in order to preserve natural resources and to enable the development of a circular economy.
Per C‑60/18 Tallinna Vesi, the recovery of sewage sludge entails certain risks for the environment and human health, particularly linked to the potential presence of hazardous substances. For the sludge at issue here not to be waste, presupposes that the treatment carried out for the purposes of recovery makes it possible to obtain sewage sludge with a high level of protection of the environment and human health, such as required by the WFD, which is, in particular, free from any dangerous substance. For that purpose, it is necessary to ensure that the sewage sludge in question in the main proceedings is harmless (at 66). The CJEU concludes, at 67
It is for the referring court to determine whether the conditions laid down in Article 6(1) of Directive 2008/98 are already met before the sewage sludge is incinerated. It must in particular be determined, as appropriate, on the basis of a scientific and technical analysis, that the sewage sludge meets the statutory limit values for pollutants and that its incineration does not lead to overall adverse environmental or human health impacts.
There are as yet no EU standards for the full recovery of sewage sludge, hence the ball of end of waste status is once again in the Member States’ court.
(Handbook of) EU Waste law, 2nd ed. 2015, Oxford, OUP, Chapter 1, 1.149 ff.