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

SBIR 第二阶段：利用海洋微生物产生的胞外多糖吸附剂去除工业和环境废物中的重金属

• 批准号: 9529946
• 负责人: Peter Carlson
• 金额: $ 30万
• 依托单位: NOVASCREEN BIOSCIENCES CORPORATION
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1996
• 资助国家: 美国
• 起止时间: 1996-09-15 至 1998-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9529946&HistoricalAwards=false
• 关键词: SBIR; Phase; II; Heavy; Metals

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.

这个小型企业创新研究第二期项目旨在确定使用一种新型海洋微生物多糖去除工业废水和包括饮用水在内的环境介质中的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修复目标。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高昂。该复合多糖细胞基质MHS-3在I期研究中被证明对铅和汞等重金属具有特殊的亲和力，我们建议将其开发成一个综合的金属去除系统。将评估制成许多树脂样基质的细胞团块在预期的现场条件下从含有非有害金属和有机材料的复杂废物流中吸附重金属的能力。本二期项目的目标是：1)建立具有成本效益的生产MHS-3细胞团的条件；2)表征MHS-3生物吸附剂对一整组受管制和不受管制金属的性能；3)描述至少两种处理系统配置中生物吸附剂的性能；4)评估生物吸附剂在处理模型和现实世界流中的原型；5)为选定的生物吸附剂的经济有效制备建立程序；6)利用吸附剂处理系统样机进行实验规模、大型实验室规模和小型中试规模的演示。预计这项工作将证明，这些吸附剂系统为许多废物提供了优越的处理经济效益，并且是处理其他废物的有利技术，包括从饮用水中去除微量金属。这项研究将为从美国和世界各地的金属加工厂、垃圾填埋场渗滤液、受污染的含水层以及潜在的放射性物质储存场所中去除重金属提供更低成本、更高效、更低能耗的方法基础。这项技术的初步商业化将针对少量、明确、高度相似的废物、对处理系统的设备和资本要求不高、预计操作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后处理设施。预计在三年内，这些地区的材料和系统的销售将提供第三阶段的项目收入，以资助大量应用的长期发展目标的重要部分，如饮用水处理和炼油厂废水清理。