SBIR Phase II: Heavy Metals Removal from Industrial and Environmental Wastes Using Exopolysaccharide Adsorbants Produced by Marine Microorganisms

小行星9529946 这个小企业创新研究第二阶段项目旨在建立一种新型海洋微生物多糖在工业废水和环境介质（包括饮用水）中去除重金属的商业可行性。 这些金属污染物是最普遍和最有问题的废物处理和环境补救目标之一。 目前的技术只能提供部分有效的治疗，而且实施和使用成本很高。 有人建议，这种复杂的多糖细胞基质命名为MHS-3，这是在第一阶段的工作，有特殊的亲和力，包括铅和汞的重金属，被开发成一个综合的金属去除系统。 将评估制成多种树脂样基质的细胞团在预期现场条件下从含有无害金属和有机材料的复杂废物流中吸附重金属的能力。 该第二阶段项目的目标是：1）建立具有成本效益的MHS-3细胞团生产条件; 2）表征MHS-3生物吸附剂对一整套受管制和非管制金属的性能; 3）表征至少两种处理系统配置中的生物吸附剂性能; 4）评估处理模型和真实世界流中的原型生物吸附剂5）建立用于成本有效地制备所选生物吸附剂的程序;和6）用原型吸附剂处理系统进行实验室规模、大型实验室规模和小型中试规模的示范。 预计这项工作将证明，这些吸附剂系统为许多废物提供了上级处理经济效益，并为其他废物的处理提供了一种有利的技术，包括从饮用水中去除微量金属。 这项研究将成为降低成本、提高效率和降低能耗的方法的基础，用于从美国和世界各地的金属精加工厂、填埋场渗滤液、受污染的含水层以及潜在的放射性材料储存场所中去除重金属。 这一技术的初步商业化将针对低容量、明确界定、高度相似的废物、处理系统的设备和资本要求适中、预计运营成本低和易于进入市场的应用。 这些应用包括印刷线路板制造场所和铅酸电池再处理设施。 这些领域的材料和系统的销售预计在三年内完成，并将提供第三阶段计划的收入，为饮用水处理和炼油厂污水净化等大规模应用的长期发展目标提供资金。

9529946 Chmurny This Small Business Innovation Research Phase II project is designed to establish the commercial feasibility for use of a novel marine microbial polysaccharide in the removal of heavy metals from industrial effluents and environmental media including potable water. These metal pollutants are among the most prevalent and problematic waste treatment and environmental remediation targets. Current technologies provide only partially effective treatment and are costly to implement and use. It is proposed that this complex polysaccharide cell matrix designated MHS-3, which was shown in Phase I work to have exceptional affinity for heavy metals including lead and mercury, be developed into an integrated metals removal system. Cell mass fabricated into a number of resin-like matrices will be evaluated for its ability to adsorb heavy metals from complex waste streams containing non-hazardous metals and organic materials under anticipated field conditions. The objectives of this Phase II project are to: 1) establish conditions for the cost-effective production of MHS-3 cell mass; 2) characterize the performance of MHS-3 bioadsorbents against a full panel of regulated and nonregulated metals; 3) characterize bioadsorbent performance in at least two treatment system configurations; 4) evaluate prototype bioadsorbents in the treatment of model and real-world streams 5) establish procedures for the cost-effective preparation of selected bioadsorbent(s); and 6) carry out bench scale, large laboratory-scale and small pilot-scale demonstrations with prototype adsorbent treatment systems. It is anticipated that this work will document that these adsorbent systems offer superior treatment economics for many wastes and are an enabling technology for the treatment of others, including the removal of trace metals from drinking water. This research will form the basis of lower cost, more efficient, and lower energy- demanding methods for removing heavy metals from metal finishing plants, la ndfill leachates, contaminated aquifers and, potentially, radioactive materials storage sites in the U.S. and world-wide. Initial commercialization of this technology will target applications with low volume, well defined, highly similar wastes, modest equipment and capital requirements for the treatment system, low projected operating costs and ease of market entry. Such applications include printed wiring board manufacturing sites and lead-acid battery reprocessing facilities. Sales of materials and systems in these areas are expected within three years and should provide Phase III program revenue to fund significant portions of the longer term development targets in high volume applications such as potable water treatment and refinery effluent clean-up.