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“GET – GREEN EFFICIENT TECHNOLOGIES” is the new independent media platform for energy supply, efficiency improvement and alternative energy sources and storage. There is still a high potential to save energy in industry. Efficiency is not only important for the profitability of a company, it is also target-oriented and saves resources. The importance of efficiency, especially in energy production, the role played by hydrogen, industrial processes, resource and recycling management, how energy can be stored and much more can be found in the new GET.

Pumps and systems

Pumps and systems Seawater desalination Fig. 3: Metering pumps from Immenhausen the project documentation. The control cabinets of the systems were also tion pumps), over 900 fittings such as pumps (dosing, feed and combina- designed and installed at the Spanish strainers and ball valves, more than subsidary. 1,000 fittings and over 600 m of pipes The dosing systems were finally were installed. Three colleagues were produced and implemented by a German-Spanish team at the Immenhau- cabinets for several weeks not inclu- exclusively involved in fitting out the sen site. Together they developed ding supplying departments such as working methods to be able to process a large project like this quickly ject with all its challenges welded the pump construction. The joint pro- and effectively. A total of 17 systems colleagues from Germany and Spain had to be built in 25 PE cabinets even closer together. dimensions that are quite demanding After the successful customer for the production of a medium-sized acceptance in January 2020, the first company. Here, clever action had to 20 cabinets went on a long journey be taken in order not to overstretch by truck via Spain to Agadir in February, the remaining five cabinets were the limited storage and production space. delivered at the end of 2020. All test After the cabinets were built from runs by the Spanish operator were a total of 15 t of technical plastics completed in summer 2022 and the (PE, PVC, PP and PVDF), they were seawater desalination plant near equipped: In addition to a total of 77 Agadir will go into operation shortly. Dosing systems in the seawater desalination plant in Agadir • Sodium hypochlorite for intake • Sodium hypochlorite for chemically enhanced backwash and ultrafiltration • Sodium hypochlorite for secondary treatment • ferric chloride • Sulphuric acid for reverse osmosis, Cleaning In Place and ultrafiltration • Sulphuric acid for chemically enhanced backwash and ultrafiltration • Sulphuric acid waste water • Sodium hydroxide for pH adjustment Reverse osmosis • Sodium hydroxide for Cleaning in Place ultrafiltration and reverse osmosis • Sodium hydroxide for ultrafiltration and chemically enhanced backwash • Sodium hydroxide wastewater treatment • Sodium hydroxide remineralisation • Antiscalant intermediate pump before high pressure • Antiscalant intermediate for energy recovery • Bisulphite intermediate pump after high pressure • Bisulphite intermediate pump for energy recovery In the process of sea water desalination In order to ensure proper functioning and to guarantee the longest possible service life of the seawater desalination plant, sufficient pre-treatment of the input water is essential. This is where the dosing and delivery systems from the supplier are used. The water is analysed and, depending on the composition/contamination, various chemicals are added to enable reverse osmosis. From chlorine against bacteria and microorganisms to sodium hydroxide for pH adjustment to sulphuric acid for Cleaning in Place the supplier from Immenhausen doses the right agent in the right concentration. And not only for pre-treatment, but also for the important cleaning of the membranes. Once again, the company ensures clean water and creates added value for people and the environment in a state-of-the-art seawater desalination plant with the highest environmental standards. sera GmbH, Immenhausen, Germany 20 GREEN EFFICIENT TECHNOLOGIES 2022

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