Germany – Engineering services – KBV Ems- und Wörsbachtal - Planungsleistungen Schlammentwässerung KA Niederselters

The Abwasserverband Emsbachtal intends to optimise and renew the sludge dewatering of the Niederselters wastewater treatment plant (68,000 PE). To date, the sludge produced at the Niederselters wastewater treatment plant has been mechanically dewatered using a chamber filter press with the addition of lime and FeCl3 and then stored in a sludge storage hall via a discharge and distribution system. In the future, mechanical dewatering using a centrifuge with the addition of flocculants is planned, and the feed system is to be renewed, optimised and adapted. In order to avoid operational concerns during the conversion and reconstruction process and extensive temporary measures for dewatering during the construction period, a preliminary investigation with a change of location of the dewatering unit with integration into the adjacent sludge storage hall was carried out in advance, which proved to be feasible and potentially advantageous. In the further planning process as part of the design planning, storage and discharge were also optimised. The subject of our request are the following engineering services: Lot 2: Technical Equipment (E-MSR-Technology): The engineering services for the technical equipment are to be offered in accordance with the scope of services and the basic services of § 55 of the HOAI 2021 for phases 1 to 9. All engineering activities required for the successful implementation of the measure, including all ancillary costs, coordination and consultation appointments, site visits, construction and acceptance appointments as well as all copying fees, are to be offered. A phased or individual awarding of phases is expressly reserved. Phases 1 and 2 can be offered at a reduced rate, possibly due to the omission of separate scheduling. Phase 5 can be offered at a 4 percentage point reduction, as the construction planning can be carried out without slot and break-through plans. Please note that the AV Emsbachtal generally reduces the basic services of LP 7 by 2 percentage points, as the submission, the award decision at the association bodies and the award (award letter) are provided by the KBV/AV Emsbachtal. We kindly ask for the indication of surcharges for ancillary costs and, if applicable, conversion and modernisation surcharges as well as consideration of the construction substance to be processed, even if this is rated at 0%. Lot 3: Structural Design: The engineering services for structural design are to be offered in accordance with the scope of services and the basic services of §51 of the HOAI 2021 for phases 1 to 6. All engineering activities required for the successful implementation of the measure, including all ancillary costs, coordination and consultation appointments, site visits, construction and acceptance appointments as well as all copying fees, are to be offered. A phased or individual awarding of phases is expressly reserved. We kindly ask for the indication of surcharges for ancillary costs and, if applicable, conversion and modernisation surcharges as well as consideration of the construction substance to be processed, even if this is rated at 0%. As a special service, the reinforcement inspection, the checking of workshop drawings and the participation in construction supervision are to be offered. Phases 1 and 2 can be offered at a reduced rate, as a preliminary investigation is already available.