GOALI: Reclaiming Valuable Resources from Industrial Wastewater

虽然从城市废水中回收材料和能源最近受到了环境工程界的关注，但工业废水作为一种资源的潜力在很大程度上被忽视了。考虑到工业废水的可持续性收益可能特别显著，因为：1)相对于城市废水，工业废水的成分和流量变异性较低；2)其来源产生者有机会立即在现场重新使用再生材料。因此，本项目提出了有效、经济地分离工业废水进行组分回用的新策略。ppi建议将基础研究与应用研究相结合，开展学术与产业合作，研究工业废水资源化利用的新策略。提出了一种双膜工艺，用于从工业废水中回收碳氢化合物、无机成分和水，这些工业废水与生物质生产氢、合成燃料、电和热有关。目前，该工艺产生的废水代表着能源、经济和环境成本，因为它不能回收，其成分必须被降解或隔离，以允许其排放到城市下水道系统。PI在膜技术方面具有丰富的研究经验，该技术适用于从传统和新兴工业中回收水、其他材料和能源。双方将共同系统地研究通过正向渗透/反渗透混合膜系统分离工业废水成分，首先在PI实验室的实验规模上，然后在co-PI的工业设施的中试规模上。将探讨技术和经济方面的问题。这种回收技术的成功演示可以将社会对工业废水的处理方式从减少危害的方式转变为资源收集的方式。所提出的工作将促进对复杂（多物种）溪流中有机和无机成分通过选择性膜的运输的科学理解。pH作为多屏障膜系统分离溶解物质的控制因素的效果将得到更好的理解。将探讨正向渗透膜对碳氢化合物污染的抵抗力，以及通过最小破坏性方法去除污染物的能力。探索正向渗透污垢阻力的极限对于预测具有高污染潜力的碳氢化合物和其他工业废物组分的最大回收率至关重要。将制备和评价专门用于该工业废水的新型膜。本科生将在高级化学工程课程中通过系统设计和经济分析与研究生一起在研究实验室进行调查。

1605957Arias-ChavezWhile the reclamation of materials and energy from municipal wastewater has received recent attention from the environmental engineering community, the potential of industrial wastewater as a resource has been largely overlooked. Sustainability gains may be particularly significant for industrial wastewater in light of: 1) lower composition and flow variability in industrial streams relative to municipal wastewater and 2) the opportunity for immediate, on-site re-use of reclaimed materials by their source generator. Therefore, new strategies for effective and economical separation of industrial wastewaters for component re-use are proposed in this project.The PIs propose an academic-industry collaboration combining fundamental and applied research to investigate a new strategy for reclaiming resources from industrial wastewater. A dual-membrane process for recovering hydrocarbons, inorganic components, and water from industrial wastewater associated with production of hydrogen, synthetic fuels, electricity, and heat from biomass is proposed. Currently, wastewater produced by the process represents an energetic, economic, and environmental cost because it cannot be reclaimed and its components must be degraded or sequestered to permit its discharge to municipal sewer systems. The PI has research experience with membrane technologies suitable for reclamation of water, other materials, and energy from conventional and emerging industries. Together, the PIs will systematically investigate the separation of industrial wastewater components by a forward osmosis/ reverse osmosis hybrid membrane system, first at the bench-scale in the PI's lab, and then at the pilot-scale at the co-PI's industrial facility. Technical and economic aspects will be explored. Successful demonstration of this reclamation technology can transform society's approach to industrial wastewater from one of hazard mitigation to one of resource harvesting. The proposed work will advance the scientific understanding of the transport of organic and inorganic components through selective membranes in complex (multiple species) streams. The efficacy of pH as a controlling factor in separating dissolved species through multi-barrier membrane systems will be better understood. The resistance of forward osmosis membranes to fouling by hydrocarbons will be explored, as will the removal of foulants by minimally-disruptive methods. Probing the limits of forward osmosis fouling resistance is critical for predicting maximum recoveries of hydrocarbons and other industrial waste components with high fouling potentials. New membranes specialized for this industrial wastewater will be fabricated and evaluated. Undergraduates will join graduate students for investigations in the research lab through system design and economic analysis performed in a senior-level Chemical Engineering course.