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

提高厌氧生物过程的稳定性：使用多孔复合膜的新方法

• 批准号: 9321873
• 负责人: Arup Sengupta
• 金额: $ 27.58万
• 依托单位: Lehigh University
• 依托单位国家: 美国
• 项目类别: Continuing grant
• 财政年份: 1994
• 资助国家: 美国
• 起止时间: 1994-03-01 至 1998-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9321873&HistoricalAwards=false
• 关键词: Improving; Process; Stability; Anaerobic; Biological

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.

9321873 Sengupta 该奖项旨在支持控制方法的研究，以提高废水处理厌氧生物过程的稳定性。 该方法基于中和中间生物呼吸产物对被处理流体的碱度的影响，并选择性地去除对反应器中的生物物种具有毒性作用的重金属。 多孔复合膜悬浮在生物反应器中。 该膜由包埋的聚合物离子交换微珠组成，具有共价连接的官能团，具有高缓冲能力和对重金属的选择性。 该项目的研究成果有望为厌氧生物反应器的工程设计提供依据，该反应器适合处理有机负荷、重金属含量和碱度波动较大的工业废水。 除了提高稳定性之外，通过消除添加缓冲盐和复合膜再生的需要，预计处理厂的运营成本将比目前水平显着降低。