EGEA - Marinfloc - #1

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Marinfloc AB, Industrivägen 10 , 472 95 Varekil, Sweden Phone: +46 (0)304 606300 Fax: +46 (0)304 10051 E-mail: marinfloc@marinfloc.com H2S Ver.1 20090325 Reduction of Hydrogen Sulphide (H2S) in Sewage EGEA – Hydrogen Sulphide Reduction System is an energy saving and chemical free environmental friendly way to reduce the content of Hydrogen Sulphide in sewage from above 2000 PPM down < 10 PPM. At a content of < 10 PPM Hydrogen Sulphide (H2S) in sewage no odour will appear. Includes also open sewers. Further, less corrosion and last but not least important, below a content of 10 PPM there is no longer any risk for poisoning. Since no chemicals nor activated carbon filters or similar are included in the EGEA- SYSTEM, neither destruction nor refilling of filter material or any transports for these purposes are necessary. Thus the EGEA-SYSTEM offers lower energy consumption and less man hours, subsequently lower operating costs. In stationary sewage the production of H2S already starts after 10 minutes, e.g. in tanks, pump wells or in other spots where leakages might occur. Since some of the H2S, which creates in tanks, pump stations, culverts etc. (humid environment), will be in contact with atmospheric oxygen (O2) HSO4 (sulphuric acid) can often be formed. This will of course result in great corrosion damages on both steel- and concrete constructions. Thus, at long sewers, we recommend to reduce the H2S as close to the source as possible. E.g. at collecting tanks, pump wells etc. This starts to become more important today when not only restaurants, hotels, hospitals etc. but also ordinary households are using disposers, which increases the BOD (Biological Oxygen Demand), subsequently will also the content of H2S will also accelerate This fact has been shown on a lot of passenger vessels. However if the bacteria have access to enough oxygen, no H2S will be formed. We at EGEA and Marinfloc AB are working with these problems and we do have a number of systems in operation on big passenger ferries operating in Scandinavian waters. We have also noted that a great number of domestic sewage stations do have problems with odour at pump wells and corrosion in the sewer net. We can, in a cost effective and environmental friendly way, help you to solve these problems in reducing the content of H2S in your sewage system. EGEA Consult www.egea.se Marinfloc AB www.marinfloc.com