Institute of Biology and Sage-Coppe, Universidade Federal Do Rio de Janeiro (UFRJ), Rio de Janeiro, Brazil.
Departamento de Química, PUC-Rio, Rio de Janeiro, Brazil.
Microb Ecol. 2022 Jul;84(1):314-324. doi: 10.1007/s00248-021-01839-z. Epub 2021 Aug 23.
The Guandu River, one of the main rivers in the state of Rio de Janeiro, provides water for more than nine million people in the metropolitan region. However, the Guandu has suffered from massive domestic and industrial pollution for more than two decades, leading to high levels of dissolved total phosphorus, cyanobacteria, and enteric bacteria observed during the summers of 2020 and 2021. The use of Phoslock, a palliative compound, was not effective in mitigating the levels of phosphorus in the Guandu River. Furthermore, potable water driven from the river had levels of 2-MIB/geosmin and a mud smell/taste. With all these problems, several solutions are proposed for improving the Guandu River water quality, including establishment of (i) sewage treatment plants (STPs), (ii) strict water quality monitoring, (iii) environmental recovery (e.g., reforestation), and (iv) permanent protected areas. The objective of this paper is to verify the poor water quality in the Guandu and the ineffectiveness and undesired effects of Phoslock.
关都河是里约热内卢州的主要河流之一，为大都市地区的超过 900 万人提供水源。然而，关都河已经遭受了二十多年的大规模生活和工业污染，导致 2020 年和 2021 年夏季观察到溶解总磷、蓝藻和肠细菌的含量很高。使用磷锁（一种姑息性化合物）并没有有效降低关都河的磷含量。此外，从河里抽取的饮用水含有 2-MIB/土臭素和泥土气味/味道。由于存在所有这些问题，提出了几种改善关都河水质的解决方案，包括建立 (i) 污水处理厂 (STPs)、(ii) 严格的水质监测、(iii) 环境恢复（例如，重新造林）和 (iv) 永久保护区。本文的目的是验证关都河水质不佳以及磷锁无效和不良的影响。
