Qualifizierungssystem Aktivkohlereaktivierung Stadtwerke Düsseldorf AG
Germany · Düsseldorf · how to bid here →
Your path to submission
- Deadline: 30 September 2027 at 23:59 — 362 days left.
- The submission point is stated in the notice (link on the right).
- Offer and evidence in: DEU.
- Collect your evidence — use the eligibility analysis above: it lists the requirements and, for known certificates, how to get them.
Clement What the numbers say about this buyer
- 26% of this buyer's awards went to companies that had already won here before (59 awards since 2024, spread over 44 companies). That is well below the sector norm (47%) — this buyer switches suppliers more often than others.n = 59 awards since 2024
- From notice to award takes a median 569 days here (39 procedures). Sector: 72 days.n = 39
- The median procedure drew just one bid (50 procedures with a bid count); 50% ended with a single bidder. Sector: median 2 bids.n = 50
- 8% of awards went to companies from abroad (59 awards with a known winner country). Sector average: 2%.n = 59
- Across 3 procedures with structured selection criteria, this buyer most often required: Trade register enrolment (3 of 3), References: services (2 of 3), Quality control by institutes (2 of 3), Independent quality certificate (e.g. ISO 9001) (1 of 3).n = 3
From this buyer's documented awards; comparison values from the same sector and country. Not a forecast, not legal advice. As of 04/10/2026.
Foreign bidders
In Germany · Chemical products, 39 contracts went to foreign companies over the last 3 years (of 1,903 recorded awards) — mostly from Italy, Switzerland, Belgium.
Submission language: DEU.
Typical field: median 2 (from 1,823 awards).
What the buyer is looking for
Collection, reactivation, replenishment of the loss quantity with fresh coal and re-delivery Description: Collection of exhausted activated carbon of originally 8 x 30 mesh in the waterworks of the AG, reactivation of the coal including compensation of the burning loss with the fresh coal released by the AG and re-delivery. The total duration of a qualification is approximately 12-15 months. Only after successful qualification may a new, previously unqualified supplier participate in the next possible bidding process. The client reserves the right to make a comparison with the applicant on the profitability and feasibility of his offer before the start of the qualification. Apparently uneconomical or difficult to implement offers (e.g. due to logistical challenges) can be excluded from the complex qualification procedure. Other points: Forwarding services: - The cleaning of the silo…
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… vehicle in a certified tank cleaning plant before transport must be documented (cleaning certificates obligatory). - The quality of activated carbon must not be negatively altered by the transport and/or the activated carbon must not be contaminated with foreign substances. Therefore, processes and installations in the silo that can negatively affect the quality of the coal must be avoided. The silo vehicles used for transport may only be used for drinking water coals. Logistics: - two filters/week possible - return within 14 days - quality assurance and sustainability: Submission of appropriate certificates as proof (at least ISO 9001 and ISO 14001) · The reactive agent must comply with the requirements of DIN EN 12915-2, in particular: - grit size (after screening <0.6 mm): 8 x 30 mesh (0.6 - 2.36 mm) - maximum 5 % of undergrain, maximum 15 % of overgrain - coefficient of non-uniformity U (d60/d10) should be <2.1 - increase of iodine by at least 200 mg of iodine/g of activated carbon according to DVGW rule W 239. The iodine count should not fall below 750 mg iodine/g activated carbon after reactivation. The number of iodine of used and reactivated activated carbons shall be reported. - The test methods according to DIN EN 12915-2 point 8 "Test methods" shall be used or, if other methods (ATSM, home methods) are used, the comparability of the methods used with the test methods specified in DIN EN 12915-2 shall be demonstrated. The AN shall enclose with each supply of reactivated activated carbon a certificate of analysis specifying the details of the returned activated carbon (reactive and fresh carbon). The following information is expected: - Grain size distribution according to EN 12902 - Unevenness coefficient U according to EN 12915-1 - Shaking density or bulk density according to EN 12915-1 (it is mandatory to specify which parameter is determined) - Ball hardness according to EN 12915-1 - Iodine number according to EN 12902 (the activated carbon to be reactivated and the activated carbon without makeup, optionally also the iodine number of the resulting return) - Ash content according to EN 12902 - Indication of the percentage of makeup in the returned coal (corresponds to the burn-off and other process loss) - Designation of the added makeup coal It must be ensured that the collected batch of coal is not mixed with other coals and thus this batch is safely returned. For this purpose, the WG must be provided with a description of the process sequence of reactivation in order to be able to understand this. Fresh grain activated carbon as make-up coal for drinking water treatment on the basis of coconut shells or on the basis of reagglomerated hard coal (both types are tested by the AG) as make-up coal for reactivations with the following properties (all data refer to DIN EN 12902 or DIN EN 12915) - wettability / floating fraction less than or equal to 0.6% (m/m) - grit 8 x 30 mesh (0.6 - 2.36 mm), determined according to DIN EN 12902 - subgrain fraction maximum 5%
What you must prove — eligibility criteria
2) Organigramm der Unternehmensstruktur 3) Auflistung der Produktpalette des Bewerbers, aus der hervorgeht, dass die benötigten Warengruppen abgedeckt werden können. Ergänzend dazu ein aktuelles Produktdatenblatt und eine aktuelle Chargenanalyse der Frischkohl… ▸▾
Contract
Who has won here before
| Company | Awards | Period |
|---|---|---|
| Max Straube Industrierohrleitungsbau GmbH · Chemnitz | 8 | 2025 |
| Kraftanlangen Energies & Services SE | 4 | 2025 |
| Bechtle IT-Systemhaus GmbH · Krefeld | 3 | 2012–2024 |
| Ricoh Deutschland GmbH · Hannover | 3 | 2012–2017 |
| ABB AG · Mannheim | 3 | 2012–2015 |
How often this buyer tenders this
Who knows the rhythm prepares instead of reacting.
How to bid
Guide: how to apply on cosinex Vergabemarktplatz / DTVP → Registration, signature, fees — from the operator's bidder manual.