Septic Systems in the Coastal Environment

摘要: Septic systems are among the most common means of treating human sewage in coastal regions, especially areas distant from metropolitan sewage-treatment facilities. can function well, given suitable hydrological and soil conditions; however, numerous reports regions United States find that these discharge excessive levels nutrients fecal microbes into waters, including those used for shellfishing. In many situations, soils sandy porous, allowing rapid transmission constituents. When this is coupled with a high groundwater table, treatment insufficient, resulting septic leachate plumes extend over 100 m waters. some such as Florida Keys, carbonate karst allow very movement pollutants drain fields. Nutrient significantly contribute to eutrophication, microbial pollution health issue shellfish consumption water recreation; thus, alternative options should be adopted situations.