ABSTRACT

Pollutants in aquatic environment tends to alter the community composition and activities of biofilm cells. The stress induced by these pollutants leads to the production of excessive reactive oxygen species (ROS) which play a key role in the degradation of pollutants in aquatic environment. This mini-review is aimed at forecasting the efficiency of the use of natural freshwater microalgae biofilm in the treatment of water resulting from mining activities. Moreover, it summarises the concept of mining by concisely stating the stages involved in mining and how the pollutants produced during mining can cause deleterious effects to aquatic flora and fauna. Environmental issues resulting from mining activities and how they hindered the progress of biodiversity were concisely discussed. Freshwater microalgae play an important role in the mitigation of the impact of pollution resulting from mining activities. The process of pollutants removal in freshwater by microalgae biofilm is by degradation and biosorption. However, it is an unestablished fact that the extracellular polymeric substances (EPS) were responsible for the biosorption of heavy metals from mining wastewater. It is also important to know the kinetic model that best explains the chemical and physical reactions of heavy metal absorption by the surface of microalgae biofilm.

摘要

水生环境中的污染物往往会改变生物膜细胞的群落组成和活动。这些污染物引起的压力导致产生过多的活性氧（ROS），这在水生环境中污染物的降解中起关键作用。这项小型综述旨在预测使用天然淡水微藻生物膜处理采矿活动产生的水的效率。此外，它通过简明地说明采矿所涉及的阶段以及采矿期间产生的污染物如何对水生动植物造成有害影响来概述采矿的概念。简要讨论了采矿活动引起的环境问题以及它们如何阻碍生物多样性的发展。淡水微藻在减轻采矿活动造成的污染影响方面起着重要作用。微藻生物膜去除淡水中污染物的过程是降解和生物吸附。然而，尚未确定的事实是，细胞外聚合物（EPS）导致采矿废水中重金属的生物吸附。了解最能解释微藻生物膜表面重金属吸收的化学和物理反应的动力学模型也很重要。尚未确定的事实是，细胞外聚合物（EPS）导致采矿废水中重金属的生物吸附。了解最能解释微藻生物膜表面重金属吸收的化学和物理反应的动力学模型也很重要。尚未确定的事实是，细胞外聚合物（EPS）导致采矿废水中重金属的生物吸附。了解最能解释微藻生物膜表面重金属吸收的化学和物理反应的动力学模型也很重要。