Karlsruhe sewage treatment plant, supply of iron sulphate heptahydrate (FeSO4 x 7H2O, green salt) as a phosphate precipitant Text automatically translated in your browsing language Automatically translated

Supply of iron II sulphate heptahydrate (FeSO4 x 7 H2O, green salt) as a phosphate precipitant Quantity: 3600 t for 2 years from 01. Oct 2025 to 30. Sep 2027 and with an option for an additional 1800 tonnes for 1 year to 30. Sep 2028 and an additional 4 months to compensate for any call-off delays. At the Karlsruhe wastewater treatment plant, phosphate is removed from the wastewater by precipitation with iron II sulphate in order to comply with the prescribed phosphorus limit value in the wastewater treatment plant flow. The release station of the phosphate precipitant is located in the inlet area of the wastewater treatment plant and can be accessed by truck. Two sump bunkers belong to the release station (Geb. G23), whereby one of the two bunkers per truck is filled as instructed by the sewage treatment plant personnel. The tipping thresholds of the bunkers are 30 cm high with a length of 4 m. Lateral tipping is not possible. The distance from the outer edge of the tipping threshold to the bunker rear wall shall be 2,20 m. This dimension shall be taken into account with regard to the shape of the tailgate. Above the sump bunkers there is a protective grid for protection against large foreign substances with grid spacings of 19cm x 19cm. For the currently set dosage amount, a delivery of about 25 t of the product is required about 5 times a month. The service advertised here includes the supply of iron II sulphate heptahydrate suitable for phosphate precipitation, including the filling into the sump bunkers at the Karlsruhe wastewater treatment plant. Tenders are only accepted as a total service. The tenderer must immediately raise any fundamental concerns about the tendered service in writing, at the latest at the time of submission of the tender. Any subsequent changes shall be borne by the Contractor (AN). The individual deliveries must be made in consultation with the customer (AG) as soon as possible after call-off. The tender will be sent electronically via the Subreport award platform to the awarding authority according to the tender documents on the submission date. The contract will be awarded to the most economically advantageous tender in relation to the FeSO4 x 7 H2O content specified by the tenderer. The calculation of the most economical tender shall be based on the formula: Unit price per kg excluding VAT / FeSO4 x 7 H2O content. Text automatically translated in your browsing language Automatically translated

24313125 - Iron sulphate