Improving Process Stability of Anaerobic Biological Processes: A New Approach Using Porous Composite Membranes

9321873 Sengupta这是一个奖项，旨在支持一种控制方法的研究，以提高用于处理废水的厌氧生物过程的稳定性。该方法的基础是中和中间生物呼吸产物对被处理流体的碱度的影响，并提供对反应器中的生物物种具有毒性影响的重金属的选择性去除。多孔复合膜悬浮在生物反应器中。膜由被包裹的聚合物离子交换微球组成，具有共价连接的官能团，对重金属具有高的缓冲能力和选择性。本项目的研究成果将为厌氧生物反应器处理有机负荷、重金属含量和碱度波动较大的工业废水的工程设计提供依据。除了提高稳定性外，由于不再需要添加缓冲盐和复合膜的再生，预计处理厂的运营成本将从目前的水平大幅降低。

9321873 Sengupta This is an award to support research on a control method for improving the stability of anaerobic biological processes used to treat wastewaters. The method is based on neutralizing the effect that intermediate biorespiratory products have on the alkalinity of the fluid being treated and providing for selective removal of heavy metals that have a toxicity effect on the biological species in the reactor. The porous composite membranes are suspended in the bioreactor. The membranes consist of entrapped, polymeric ion-exchange microbeads with covalently attached functional groups having a high buffer capacity and selectivity for heavy metals. Results of this project are expected to provide the basis for engineering design of anaerobic biological reactors that are amenable for treatment of industrial wastewaters characterized by large fluctuations of organic load, heavy metal content and alkalinity. Besides improved stability, the operating costs of treatment plants are expected to be significantly reduced from present levels by elimination of need for addition of buffer salts and regeneration of the composite membrane.