Small wastewater treatment plants
Small wastewater treatment systems serve to purify domestic foul water from buildings with up to 50 inhabitants. The wastewater is treated using physical and biological processes.
Regulatory framework
Small wastewater treatment plants that are covered by harmonised standards EN 12566-3 and EN 12566-6 must bear the CE marking.
For small wastewater treatment plants in accordance with EN12566-3 and EN12566-6, national technical approvals were granted until October 2016. As a result of the implementation of the judgement of the European Court of Justice of 16 October 2014 in case C-100/13, national technical approvals are no longer granted for these products if they bear the CE marking on the basis of the Construction Products Regulation (Regulation (EU) No 305/2011). The products may not be marked with the national conformity mark.
Small wastewater treatment plants and systems not covered by the harmonised European standards (e.g. retrofit kits) fall under the Ordinance on the determination of the suitability of construction products and construction techniques under water law by means of verifications in accordance with the Building Codes of the federal states (WasBauPVO).
Cf. WasBauPVO, Section 1(1)(a) 'Small wastewater treatment plants designed for wastewater volumes of up to 8 m3/day'.
DIBt grants national technical approvals (abZ) in combination with a general construction technique permit (aBG) for the latter. The abZ/aBG serve to verify the suitability of the plants both from a construction and water legislation point of view. (Please also see Retrofit kits for installation in existing wastewater treatment plants for creation of small wastewater treatment plants).
European Technical Assessments (ETAs) can also be issued for small wastewater treatment plants which are not (fully) covered by EN 12566-3 or EN 12566-6. The plants can then be placed on the market bearing the CE marking. Provisions pertaining to the application fall within the responsibility of the local authorities.
National procedure
A national technical approval (abZ) and/or oder general construction technique permit (aBG) is granted upon application (see Model Building Code (MBO), Sections 16a(2) and18(2) and (4)). This also applies to amendments and supplements to, or renewals of existing approvals and/or construction technique permits.
No formal requirements apply. The following information is needed: name and address of the applicant, description of the product and/or construction technique and its field of use or application, type of decision required (new decision, amendment or supplement to, or renewal of, an existing decision).
Please feel free to use the template below.
- pdf-Datei Application for a national technical approval and/or construction technique permit (4 pages ) Version: 10 April 2024; Application form
- pdf-Datei Application for amendment / supplementation / renewal of a national technical approval and/or construction technique permit (4 pages ) Last updated: 10 April 2024; Application form
- pdf-Datei Guideline: How to provide drawings for national technical approvals and general construction technique permits (5 pages ) Version: July 2017
European Technical Assessment (ETA)
To start the ETA procedure, please submit the form below. We will then check if the prerequisites for issuing an ETA are met, i.e., in particular, if the product is not fully covered by an existing harmonised standard. If the prerequisites are met, we will check whether a European Assessment Document (EAD) covering the requested assessment scope already exists or still needs to be developed. If an EAD needs to be developed or amended, a complete technical file needs to be established before the procedure can begin.
- pdf-Datei Form for requesting a European Technical Assessment (ETA) (2 pages ) Last updated: 10 April 2024
| Subject concerned | Applicant | Decision no. |
Validity
from / to |
|---|---|---|---|
| Kleinkläranlagen mit Abwasserbelüftung zur Freiaufstellung Belebungsanlagen mit Membranfiltration, Typ BUSSE MF - HKA und Typ BUSSE MF - G-HKA für 4 bis 50 EW Ablaufklasse D+H | Busse Innovative Systeme GmbH Zaucheweg 6 04316 Leipzig | Z-55.3-317 |
Z:
20.01.2021 G: 14.04.2025 |
| Kleinkläranlagen mit Abwasserbelüftung zur Freiaufstellung Belebungsanlagen mit Membranfiltration Typ BUSSE MF - HKA und Typ BUSSE MF - G-HKA für 4 bis 50 EW Ablaufklasse D+H+P | Busse Innovative Systeme GmbH Zaucheweg 6 04316 Leipzig | Z-55.3-327 |
Z:
20.01.2021 G: 30.06.2025 |
| Kleinkläranlagen mit Abwasserbelüftung zur Freiaufstellung Belebungsanlagen mit Membranfiltration, Typ BUSSE MF - HKA und Typ BUSSE MF - G-HKA für 4 bis 50 EW Ablaufklasse N+H | Busse Innovative Systeme GmbH Zaucheweg 6 04316 Leipzig | Z-55.3-60 |
Z:
20.01.2021 G: 02.07.2025 |
| Bepflanzter Bodenfilter Typ Burg I für 4 bis 50 EW Ablaufklasse C | Umweltgestaltung Frank Hildebrand Weidenweg 10A 03096 Burg im Spreewald | Z-55.4-91 |
Z:
09.12.2020 G: 09.12.2025 |