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The paper presents a study on the ecological recovery of a waste from the urban waste water treatment plant, respectively the sewage sludge. The use of sewage sludge, is made through its use in agriculture and forestry, through incineration with energy recovery, or co-incineration. According to EU legislation, sludge cannot be used in farming in raw form, so it must be treated before it is properly used. The paper presents an analysis of sludge samples from the decanters of the urban waste water treatment plant fr...

Industry, pollute environments (air, water, soil), and bring damage to the health, both to the people and all living beings. In areas where oil and gas development is prevalent, air, water and soil resources can become contaminated with oil and gas wastes and by products. The pollutants emitted by the oil and gas industry, may bring damage immediate or long-term, to the environment. Mining industry and the oil processing, affects the environment through gaseous and liquid hydrocarbons. All products resulting from ...