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首页> 外文会议>10th international conference on chemical and process engineering >Anthropogenic Effects on the Water Quality at a Pond in the Amazon Region
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Anthropogenic Effects on the Water Quality at a Pond in the Amazon Region

机译：人为因素对亚马逊地区池塘水质的影响

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The Lake of the Francesa located in the city of Parintins - Brazil, receives industrial andrndomestic wastes, whose composition is varied by changing the natural characteristics ofrnits waters. Some tests were performed in the water at four different points along thernlength of the pond in February and June 2010, the period of the low and high level ofrnlake water respectively (period for seasonal phenomenon that is influenced by thernregion's natural Amazon) and analyzed the following parameters: pH, alkalinity,rnturbidity, color, hardness, dissolved oxygen (DO), biochemical oxygen demand (BOD),rnchemical oxygen demand (COD) and fecal coliforms. The values obtained in differentrnperiods were compared with the aim of identifying and evaluating the variables thatrnaffect water quality in these periods considering the seasonality in the volume of pondrnwater. The parameters alkalinity, turbidity, color and hardness showed lower valuesrnduring the high water of the pond. The pH tended to neutrality in both periods. For thernbiological parameters, the values diverged, with no variation for BOD, COD had higherrnvalues in the period of high water. And the OD showed lower values in the period ofrnhigh water. Fecal coliform was the parameter that indicated a greater change in waterrnquality due to domestic and industrial effluents that are released into the pond withoutrnproper treatment. The study showed that despite the human contribution, the pond stillrnkeeps its ability to dilute pollutants, mainly during the period of high water (flood).
机译：位于巴西Parintins市的Francesa湖收到工业和家庭废弃物，其组成因改变rnits水域的自然特征而变化。分别于2010年2月和2010年6月在沿池塘长短的四个不同点的水中进行了一些测试，分别为低湖水和高湖水的时期（受自然区域天然亚马逊影响的季节性现象的时期），并分析了以下内容参数：pH，碱度，浊度，颜色，硬度，溶解氧（DO），生化需氧量（BOD），化学需氧量（COD）和大肠菌群。比较了不同时期获得的值，目的是在考虑和考虑池塘水量的季节性变化的情况下，识别和评估影响这些时期水质的变量。在池塘高水位时，碱度，浊度，颜色和硬度等参数显示较低的值。在这两个时期中，pH均趋于中性。在生物参数方面，数值存在差异，BOD没有变化，COD在高水时期具有较高的数值。在高水时期，OD值较低。粪大肠菌群是表明水质变化较大的参数，这是由于未经适当处理而将生活污水排放到池塘中所致。研究表明，尽管人类做出了贡献，但池塘仍然削弱了其稀释污染物的能力，主要是在水位高（洪水）期间。

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