海洋污染英文演講稿(編輯修改稿)
2024-09-01 20:10 本頁面
【文章內(nèi)容簡介】 The second, containing the easily degradable anic pounds and heavy metals in wastewater Easily degradable anic matter, microanisms under natural conditions is difficult descending deposition of anic material occurs in the natural environment can be maintained indefinitely and disseminated, and thus a serious impact on the marine environment and ecological Third, medical sewage carrying pathogens, domestic sewage and industrial wastewater Pathogens, infectious agents, including pathogens, disease eggs, viruses. Pathogens can survive in the water can enter the body through the food chain, which make you sick fourth,Industrial wastewater containing anic matter and nutrients, sewage. Wastewater containing anic and nutrient substances that contain protein, fat, amino acids, carbohydrates and ot
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