• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文会议>Fourth International Congress on Environmental Geotechnics (4th ICEG) Vol.1, Aug 11-15, 2002, Rio de Janeiro, Brazil >Analysis of groundwater flow and contaminant behavior in an industrial coastal area in Brazil
【24h】

Analysis of groundwater flow and contaminant behavior in an industrial coastal area in Brazil

机译：巴西工业沿海地区的地下水流量和污染物行为分析

获取原文
获取原文并翻译 | 示例
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Representing a continental-marine transition, the mangrove ecosystem is very susceptible to the tidal fluctuations and its distinctive vegetation plays an important role in preventing erosion and contamination processes. The study area is located inside Petroflex's industrial plant at the Guanabara Bay's northwest shoreline, within an endangered mangrove ecosystem. Petroflex S.A. is a petrochemical company and an important producer of synthetic rubber. All the solid waste produced for almost 40 years was buried or inadequately disposed in the area. This research aims at the characterization of groundwater contamination, with focus on the hydrodynamic and hydrochemical interaction between seawater and groundwater. Results show a dominant groundwater flow direction to the Guanabara Bay, with a chloride content of nearly 15 g/L, while the adjacent seawater body has a Cl concentration of 32 g/L. Total petroleum hydrocarbon (TPH) and poli-cyclic aromatic hydrocarbons (PAH) measurements showed no detectable amounts in groundwater, except for one sample with a 0,2 mg/L concentration of naphthalene. The organic clay layer showed TPH and PAH contents above the detection limits, in a depth ranging from 2 to 10 m, with higher values from 4 to 6 m depth. This hints for the filtering and retention processes provided by the mangrove typical soils.
机译：红树林生态系统代表着陆海过渡，非常容易受到潮汐波动的影响，其独特的植被在防止侵蚀和污染过程中发挥着重要作用。研究区域位于危地马拉红树林生态系统内瓜纳巴拉湾西北海岸线的Petroflex工业工厂内。 Petroflex S.A.是一家石化公司，也是重要的合成橡胶生产商。将近40年产生的所有固体废物都埋在该地区或没有适当处置。这项研究旨在表征地下水污染，重点是海水和地下水之间的水动力和水化学相互作用。结果表明，通往瓜纳巴拉湾的主要地下水流向，氯化物含量接近15 g / L，而相邻海水体的Cl浓度为32 g / L。总石油烃（TPH）和多环芳烃（PAH）的测量结果表明，除了一个浓度为0.2 mg / L萘的样品外，在地下水中没有可检测到的量。有机粘土层在2至10 m的深度范围内显示出高于检测极限的TPH和PAH含量，在4至6 m的深度范围内显示出更高的值。这暗示了红树林典型土壤提供的过滤和保留过程。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号