Water supply and sanitation facilities with pipeline and sewer networks, Latvia

With the aim of securing for Latvia’s inhabitants drinking water supply and sanitation up to European standards, Fichtner is handling two separate projects in the west and in the east of the country. The project in western Latvia covers fourteen communities and towns in the Kurzeme Region with a total population of 65,000. In the east, the provision of water supply systems is planned for fifteen communities in the extended catchment area of the Daugava River with a total of 70,000 inhabitants. For these schemes, water pipeline networks and sewer systems as well as purification and treatment facilities are to be extended and rehabilitated for various communities with 500 to 15,000 inhabitants. Fichtner prepares planning and draws up tendering documents as well as, for some local networks, a hydraulic model.

Rehabilitation and expansion of Bucharest wastewater treatment plant, Romania

Rehabilitation of this treatment plant, with a capacity of two million population equivalent, is currently among the biggest investments to fulfill European environmental standards in Eastern Europe. The first expansion stage was to a major part financed under the EU’s ISPA Program but also with loans from the EIB and EBRD. It covers complete rehabilitation of the existing wastewater treatment plant, including sewage sludge treatment. In this way, 55 % of the daily flow of sewage is to be cleaned in compliance with EU standards, corresponding to a flow rate of around 864,000 m³/d or 10 m³/s. For this project, within a joint venture Fichtner was awarded a contract for the entire site supervision. During the second expansion stage, a second treatment train is to be implemented, to double the treatment capacity to four million population equivalent. In addition, a sewage sludge incinerator is to be constructed.

Expansion of water supply and sanitation, Cyprus

The EU is funding several municipal water and sanitation projects in northern Cyprus. For construction of five wastewater treatment plants and one seawater desalination plant, as well as renewal of water supply pipelines and laying of sewer networks, Fichtner Water & Transportation was entrusted with updates in the framework plans as well as conceptual planning and drawing up tender documents in accordance with the stipulations of the FIDIC red and yellow books. The wastewater treatment plants are dimensioned for 3000 to 45,000 m³ per day. The sewer network is extended to a catchment region of 1450 ha and the water supply network renewed along a length of 130 km. The reverse osmosis desalination plant generates 25,000 m³ drinking water per day.

Studies on the sanitation sector and an urban sanitation system, Burundi

For expanding the sewage system of the town of Gitega in Central Burundi with a population of 50,000, Fichtner Water & Transportation worked out technical solutions and prepared a feasibility study. Additionally, proposals were worked out for the organization of the sanitation sector in general whose findings could be applied to other towns in Burundi. These services comprised taking an inventory of the technical facilities, analyzing operators with proposals for their future organization, devising an operating and training concept, investigating options, preliminary planning for the first expansion stage, and a tariff study.

Planning and construction of sanitation and drainage systems in the Jordan Valley, Jordan

To ensure proper disposal of sewage in the Jordan Valley, the sewage treatment plant and sewer network with a length of 470 km and 50 km of sewer mains was planned and constructed. Sewage from 250,000 inhabitants is directed to a new sewage treatment plant for Wadi Shallala, and the sludge treatment facility of the neighboring Wadi Arab sewage treatment plant was rehabilitated, following investigations to establish the best option. The effluent from these two plants is piped into the Jordan Valley for irrigation. An additional use for it for electricity generation by hydropower is in preparation. Following preparation of the planning and tender documents, Fichtner assisted during contract award and supervised construction.

Fujairah BOT Sanitation Project, United Arab Emirates

Under the Fujairah Sanitation Project, 11,350 m³/d of sewage from around 65,000 inhabitants is to be collected and treated. For this purpose, 170 km of sewers of DN 200 to 700, 34 km of sewer pumping mains of DN 125 to 600, 27 pumping stations and a sewage treatment plant of 16,000 m³/d capacity are to be constructed. The treated sewage is to be used for agriculture or discharged to the sea through a 1.7 km DN 1000 pipeline. For this project on a Build-Own-Transfer (BOT) basis, Fichtner prepared the feasibility study, undertook preliminary and conceptual engineering, conducted the environmental impact assessment, assisted the concession granting process, and provided support during award of contract to the general contractor and operator. Fichtner was also entrusted with site supervision.

Construction of a new wastewater treatment plant for the oil and gas facilities on Das Island, United Arab Emirates

On Das Island in the Persian Gulf, ADGAS Abu Dhabi Liquefaction Company Ltd. is operating a natural gas liquefaction plant whose wastewaters are at present discharged directly into the sea. Fichtner was awarded a contract by ADGAS for designing a concept for wastewater collection and the associated treatment plants, as well as a disposal system for separating brine from the generated wastewater. These services include field collections of data with measurements, planning services (FEED – Front End Engineering and Design), drawing up the tender documents for award of an EPC contract, making a recommendation for contract award, estimating the cost as well as drafting the specifications and contract documents.

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Infrastructure measures for regional water supply and sanitation, Armenia

As political and economic conditions evolve, in Armenia, too, a former USSR country, restructuring of the water sector and decentralization have been initiated. With German funding, a joint local authorities water and sanitation association has been set up for Armavir, Metsamor and surrounding villages. The aim was to initiate the necessary infrastructural measures and create the basic technical structure for proper water supply and sanitation. Fichtner rendered consultancy services for rehabilitation of water and sewer networks, and construction of the new biological sewage treatment plant. Additionally, Fichtner drew up the planning and tender documents, and provided project assistance up to acceptance of the construction work.

Planning and site supervision of a sewage treatment plant for Managua, Nicaragua

Under a program funded by KfW for upgrading sanitation facilities in the capital of Managua and for cutting pollution in Lake Managua, Beller Consult was awarded a contract for planning a sewage treatment plant for the city. Additionally, Beller drew up the tender documents, assisted ENACAL (Empresa Nicaragüense de Acueductos y Alcantarillados) during contract award, and supervised construction and commissioning. The tender concerned a FIDIC-EPC / turnkey contract in combination with a five-year contract for operating the plant. As baseline option for tendering, Beller developed a technical solution with anaerobic settling lagoons followed by bacteria beds and discharge to Lake Managua. To establish the optimum technical and economic solution, first a feasibility study was undertaken.

Planning and construction of sewage collection and treatment in Potosí, Bolivia

Potosí, sited 4000 m above sea level, is dominated by mines of various size, often operated as minimal extraction workings. The sewage of this town of around 140,000 inhabitants had to be properly collected and discharged. Additionally, wastewaters from the silver, lead and zinc mines had to be collected and directed to treatment, for which Fichtner planned construction of a dam for retaining mine waters. Treatment was undertaken in various lagoons, with two designed as settling lagoons. For town sanitation, a sewer system was designed and planned, with piping of domestic sewage directly to the sewage treatment plant. Following the planning phase, Fichtner was also retained for assistance during contract award and for site supervision.

Modernization of Stuttgart Sewage Treatment Plant, Germany

To comply with new and evolving EU requirements, since the end of the nineties there has been a need to re-equip and convert sewage treatment plants in Germany. At Stuttgart Sewage Treatment Plant, serving a population equivalent of 1.2 million, Fichtner has been involved as engineer in many conversion measures. Examples of these are: rehabilitation of preliminary clarification, conversion to immersed scrapers, and fixing covers to suppress odors and reduce nuisance to adjacent residential areas. Compliance with tightened up nitrate standards required extension of the biological stage, which was done together with construction of a completely new treatment train. Furthermore, sludge disposal was expanded, while rebuilding of the incinerator was assisted under planning and supervision aspects by Fichtner.

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