In order to maintain a pH value between 6 and 8 in the residual hole (RL) 14/15, the introduction of neutralizing agents (limestone powder and/or fine white lime) by means of an inbrine treatment (by a ship-based water treatment plant) is required.

Conditioning by means of a ship-based water treatment plant:

- former opencast mine Schlabendorf-Süd RL 14/15 (Schlabendorfer See)

The services include all necessary expenses for the delivery and large-scale input of the input materials, which leave the ship-based water treatment plant as a diluted suspension (2-5%) and are turbulently discharged under water in the entire area of Lake Schlabendorf.

In order to maintain a pH value between 6 and 8 in the residual hole (RL) 14/15, the introduction of neutralizing agents (limestone powder and/or fine white lime) by means of an inbrine treatment (by a ship-based water treatment plant) is required.

Conditioning by means of a ship-based water treatment plant in the former Schlabendorf-Süd opencast mine, residual hole 14/15 (Schlabendorfer See) in the period 2024 to 2027:

- Introduction of limestone flour with a reactivity of 30 megamoles and fine white lime with a reactivity of 60 megamoles.

- Necessary use of a ship-based water treatment plant.

The conditioning of the residual hole 14/15 is carried out discontinuously with input quantities of 0.6 megamoles/day up to 0.9 megamoles/day for the conditioning agent limestone flour or from 0.75 megamoles/day up to 3.0 megamoles/day for the conditioning agent white fine lime depending on reacidification (determined by AG with scientific supervision).

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Use of the ship-based water treatment plant:

The services include all necessary expenses for the large-scale input of the feedstock, which leave the ship-based water treatment plant as a diluted suspension (2 to 5%) and are turbulently discharged under water in the entire area of Lake Schlabendorf.

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In the procurement procedure and in the contract, a material price escalation clause applies.