General Electric Environmental Services

GEESI [General Electric Environmental Services] A process for making ammonium sulfate from the sulfur dioxide present in flue-gas. 

In the Dakota Gasification synfiiels plant in North Dakota, waste sulfur dioxide (SO2) reacts with ammonia and air to make AS that is 99.5% pure. It has a capacity of500 tonnes per day of granular AS. This process is referred to as the Ammonium Sulphate Forced Oxidation (ASFO) system. It was developed, patented and commercialized by General Electric Environmental Services, Inc. (GEESI). GEESI was acquired by Marsulex Inc. (North York, Ontario, Canada) in 1997243. 

Takahax A variation of the Stretford process for removing hydrogen sulfide from gas streams, in which naphthaquinone sulfonic acid is used in place of anthraquinone disulfonic acid. Four variants have been devised types A and B use ammonia as the alkali types C and D use sodium hydroxide or carbonate. Developed by the Tokyo Gas Company and licensed in the United States by General Electric Environmental Services. Many plants are operating in Japan. 

General Electric (GEESI) In Situ Forced Oxidation Process. The General Electric Environmental Services Inc. (GEESI) process is a limestone FGD process with in situ forced oxidation. A typical configuration is illustrated in Figure 7-2 and a typical absorber tower in... 

The Takahax process is licensed in the United States by General Electric Environmental Services (GEESI), of Lebanon, PA. The first major installation of the Takahax process in the U.S. was in 1979 at Kaiser Steel s Fontana, CA, plant (GEESI, 1981) followed in 1981 by a second Takahax unit at the by-products plant of Republic Steel s coke plant, located in Chicago, IL (Williams et al., 1983). Both of these installations are Type A Takahax units. 

Such natural services may be interrupted in other ways. If the chemical or sewage plant upstream puts something toxic into the stream that the water treatment plant of the city downstream cannot remove by standard treatments, a new water supply or a new treatment method will have to be found at increased cost. In earlier years before the toxicity of the polychlorinated biphenyls was fully appreciated, General Electric released enough of them into the Hudson River north of Albany, New York that the whole Hudson River from Hudson Falls to New York City is now a Superfund site.7 Fishermen are advised not to eat the fish that they catch. It is not always easy to calculate the cost of a fishery lost to toxic heavy metal ions or acids draining out of a mine site.8 One settlement, involving a salmon fishery in a river in Idaho, was for 60 million dollars. The Exxon Valdez oil spill in Alaska cost Exxon 3 billion dollars. The persons whose wells become contaminated by leachate from the nearby landfill will face the costs of bringing water from a distance. This was a cost that was not included when the landfill was built. The U. S. National Research Council has recommended that the U. S. Department of Commerce resume development of a method to better measure environmental costs.9... 

Here, the forest resources and the social - environmental consequences of power generation via wood gasification were evaluated on 15 northern communities in Saskatchewan which are serviced by diesel electric generators. A general assessment was undertaken for 14 communities and a detailed one for Pinehouse. These communities are listed in Table 4. The table shows the size and the electrical load at these communities. 

The market for composite insulators is growing steadily. Composite designs generally employ a fibreglass rod or hollow core for mechanical strength, with an outer housing made from either silicone mbber, EPDM or EPR. Insulator service life can be affected by electrical, mechanical and environmental stresses. One of the biggest... 

---