PASSAVANT Energy & Environment GmbH (formerly Passavant-Roediger GmbH)

PASSAVANT Energy & Environment GmbH (formerly Passavant-Roediger GmbH)

Passavant-Roediger stands for tradition, experience and development. In the field of water, waste, wastewater and sludge treatment. Our main activities in environmental technology are: Engineering, technology, complete equipment delivery and technical services for municipal wastewater treatment plants worldwide; Turn-key plants for municipal and industrial wastewater treatment; Engineering, technology, complete equipment delivery and technical services for sludge digestion plants, digester gas treatment and utilization; Advanced equipment for aeration, mechanical sludge thickening and dewatering; Advanced technology, engineering, complete equipment and technical services for extended wastewater treatment facilities (e.g. for wastewater re-use for industry or infrastructure purposes); Waste treatment (thermophilic anaerobic bio-waste fermentation); Potable water treatment; Industrial water treatment; Design, engineering and complete equipment for thermal sludge drying plants.

Company details

Herriotstra├če 1 , Frankfurt , 60528 Germany
View in map

Find locations served, office locations and our distributors

Business Type:
Service provider
Industry Type:
Water and Wastewater
Market Focus:
Internationally (various countries)
Year Founded:


Company History

Passavant-Roediger GmbH is a German-Based Subsidiary of Drake & Scull International PJSC, which is a UAE based, public joint stock company.

Milestones & History

  • Roediger was founded 1842 as a tinsmith company in Hanau/Germany and started as one of the first with the drilling of filter wells, the construction of pumping stations as well as the installation of pressurized water systems and gas lighting networks.

Since the middle of the last century, new technologies and developments in the field of effluent and sludge treatment were developed and advanced by Roediger, who became well-established world wide with regard to municipal wastewater treatment, sludge digestion and vacuum drainage systems.

  • In 2009, 82% of Passavant-Roediger GmbH were acquired by the Drake & Scull International PJSC group
  • With effect on 1st January 2012, the remaining 18 % of shares in Passavant-Roediger GmbH were transferred to the Drake & Scull International PJSC group

Passavant-Roediger offers process engineering and mechanical, electrical, instrumentation, control and automation (MEICA) engineering as well as construction and construction management, providing a design and build service for water, wastewater, sludge and waste treatment systems.

We operate globally, throughout Europe, the Middle East, the Far East, including China, North Africa and many other overseas countries.

Having the necessary experience and the ability to be independent in the selection of the best process and equipment for each system allows us to provide clients with the most appropriate and cost-effective solution to meet their requirements.

Passavant-Roediger GmbH has an integrated team of dedicated professionals with an unparalleled level of expertise that enables the company to undertake projects in the ranging from mid-size to major projects as a general EPC contractor (turnkey contracts).

Passavant-Roediger GmbH is able to offer the following services:

  • Full turnkey projects, including EPC and DBO contracts
  • Feasibility / Technical studies
  • Pilot plant studies
  • Laboratory scale studies
  • Electrical control logistics
  • Project Management
  • Procurement
  • Installation
  • Testing / Commissioning
  • Operator Training
  • Planned Maintenance
  • Plant / Process refurbishment and overhaul
  • Full technical support
  • Plant audits
  • After Sales Service
  • Operation & Maintenance

From initial feasibility study to full turnkey plant installation, Passavant-Roediger GmbH has the solution for any water, wastewater, sludge or waste treatment project.

Passavant has always been a name synonymous with excellence of execution through innovation.

Established in 1842 in Germany, Passavant Energy & Environment (formerly Passavant-Roediger) developed groundbreaking technologies and processes in municipal wastewater, sludge, water and industrial wastewater treatment, including the company’s in-house world renowned sludge digestion technology. A Lamella separator technology a state- of-the-art four stage process used for water treatment.

Today, Passavant Energy & Environment’s (PE&E) steady growth and the establishment of various subsidiaries in Europe, MENA and Asia open a gate to establish and acquire businesses in new markets. Winning awards for projects world-wide, including, but not limited to North Africa, UAE, Saudi Arabia, Iraq, Lebanon, Turkey, Europe and Asia, including China and Vietnam amounting to 500 million Euros. In September 2013 moved its offices to Frankfurt am Main, Germany. Being close to of the biggest airports in Europe therefore enables us to be closer to our clients and cooperate with global talents.

Always visualizing, the company strived from its roots in environmental preservation further to encompass Energy Re-Use, in addition to Water Re-Use; thereby dually focusing on both of the globally limited resources simultaneously. PE&E’s portfolio includes more than only Green Energy solutions but elevating its project delivery from full turnkey EPC contracts to holistic solutions for Water and Energy Re-Use. Passavant Energy & Environment’s paradigm shift in solution provision is well-defined as a comprehensive benefit: PE&E is a complete solution provider and encompasses EPC contracting, Operation&Maintenance service provision, financing, as required by the client but under the umbrella of a complete water and energy resource optimization scheme.

PE&E is 100% owned and the subsidiary of Drake&Scull International PJSC.


The core principle of Passavant Energy & Environment is to maintain world-class service with German standards. The fully integrated Management System certified to DIN EN ISO 9001, 14001 and OHSAS 18001 ensures that the relevant requirements for quality are recognized for all projects until the completion of work in terms of Planning, Manufacture, Delivery and Operation of products and plants for waste water purification, treatment of potable water and municipal solid waste and refurbishment of hydro power plants.

All our activities are performed in a planned and systematic manner under procedural control to ensure that all projects are progressively controlled / assured until completion of the work.

All personnel working within the Company are responsible for the quality of their work and perform their duties in accordance with the requirements of the manual and the referenced procedures. No deviations are permitted without the written authority of the Management and agreement of the Company.