...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Biological Trace Element Research >Analysis of Bacteria, Parasites, and Heavy Metals in Lettuce (Lactuca sativa) and Rocket Salad (Eruca sativa L.) Irrigated with Treated Effluent from a Biological Wastewater Treatment Plant
【24h】

Analysis of Bacteria, Parasites, and Heavy Metals in Lettuce (Lactuca sativa) and Rocket Salad (Eruca sativa L.) Irrigated with Treated Effluent from a Biological Wastewater Treatment Plant

机译：生物污水处理厂处理过的污水灌溉后的莴苣（Lactuca sativa）和火箭沙拉（Eruca sativa L.）中细菌，寄生虫和重金属的分析

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

This study aimed to evaluate the viability of using treated residuary water from the Biological Wastewater Treatment Plant of Ribeirão Preto to grow vegetables, through the characterization and quantification of parasites, coliforms, and heavy metals. Three equal cultivation areas were prepared. The first was irrigated with treated/chlorinated (0.2 mg L−1) wastewater, the second one with treated wastewater without chlorination, and the third site with potable water, which was the control group. The presence of Hymenolepis nana, Enterobius vermicularis, nematode larvae, and Entamoeba coli was verified in lettuce (Lactuca sativa) samples. Although nematode larvae were observed in rocket salad (Eruca sativa L.), no significant differences were found between the number of parasites and type of irrigation water used. No significant differences were found between the number of fecal coliforms in vegetables and the different types of irrigation. However, the vegetables irrigated with treated effluent without chlorination showed higher levels of fecal coliforms. The risk of pathogens is reduced with bleach addition to the treated effluent at 0.2 mg/L. Concentration of heavy metals in vegetables does not mean significant risks to human health, according with the parameters recommended by the World Health Organization.
机译：这项研究旨在通过表征和定量寄生虫，大肠菌和重金属来评估使用RibeirãoPreto生物废水处理厂处理过的残留水种植蔬菜的可行性。准备了三个相等的种植区。第一个用对照组进行处理/氯化（0.2 mg L -1 ）废水灌溉，第二个用未经氯化处理的废水灌溉，第三个用饮用水灌溉。莴苣（莴苣）样品中已证实存在鬣狗，蠕形肠球菌，线虫幼虫和肠杆菌。尽管在火箭沙拉（Eruca sativa L.）中观察到线虫幼虫，但在寄生虫数量和所用灌溉水类型之间未发现显着差异。蔬菜中粪大肠菌群的数量与灌溉类型之间没有显着差异。但是，用未经氯化处理的污水灌溉的蔬菜显示粪便大肠菌水平较高。在处理后的废水中添加0.2 mg / L的漂白剂可降低病原体的风险。根据世界卫生组织建议的参数，蔬菜中的重金属含量并不意味着对人体健康构成重大威胁。

著录项

相似文献

  • 外文文献
  • 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