US-Egypt Cooperative Research: Recovery of Sodium Hydroxide from Black Liquor Effluents of Paper Mill

美埃合作研究：从造纸厂黑液废水中回收氢氧化钠

• 批准号: 0317653
• 负责人: Harrison Cooper
• 金额: --
• 依托单位: Bountiful Applied Research Corporation
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2003
• 资助国家: 美国
• 起止时间: 2003-09-01 至 2006-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0317653&HistoricalAwards=false
• 关键词: US; Egypt; Cooperative; Research; Recovery

0317653CooperDescription: This award is to support a cooperative research project between Dr. Harrison Cooper, President, Bountiful Applied Research Corporation, Bountiful, Utah and Dr. El-Sayed Abdel-Aal, Central Metallurgical Research and Development Institute (CMRDI), Helwan, Egypt. The PIs will pursue an investigation of a new lignin precipitation process based on adding water-soluble surface-active polymers into black liquor and acidifying the sample by adding phosphoric acid. The use of these polymers is likely to facilitate the separation of lignin from liquor by producing an easily separable coagulant. The PIs will consider defluorination of phosphoric acid enabling recovery of P-rich lignin material for use in animal feeds. Scope: The project will develop a method to treat black liquors and diminish toxic extractives thus making the residual liquor more amenable to biological treatment. High value by-products will be usable as soil amendments and fertilizers. Applications of the treatment and recovery process will improve pulp mill profitability. The ability to process non-wood black liquor can lead to utilization of fibers such as grass straw, kenaf and arundo donax in the United States of America. The potential of developing a process that economically matches small scale pulping operations in underdeveloped areas will greatly enhance regional economics and substantially reduce the environmental impact of these facilities. Dr. Abdel-Aal has a long experience in the lignin separation process, while Dr. Cooper has particular experience in the application of engineering processes into viable solutions to environmental problems. The two will be supported by advisors from the CMRDI and the University of Florida in the course of the project. This project is being supported under the US-Egypt Joint Fund Program, which provides grants to scientists and engineers in both countries to carry out these cooperative activities.

0317653库珀描述：该奖项旨在支持犹他州邦蒂富尔的邦蒂富尔应用研究公司总裁Harrison库珀博士和埃及赫勒万中央冶金研究与发展研究所（CMRDI）的El-Sayed Abdel-Aal博士之间的合作研究项目。PI将继续研究一种新的木质素沉淀工艺，该工艺基于向黑液中加入水溶性表面活性聚合物并通过加入磷酸酸化样品。这些聚合物的使用可能通过产生容易分离的凝结剂而促进木质素从液体中的分离。PI将考虑对磷酸进行脱磷，从而能够回收富含磷的木质素材料用于动物饲料。适用范围：该项目将开发一种处理黑液和减少有毒提取物的方法，从而使残余液体更适合生物处理。高价值的副产品可用作土壤改良剂和肥料。处理和回收工艺的应用将提高纸浆厂的盈利能力。在美利坚合众国，处理非木材黑液的能力可导致对诸如稻草、洋麻和芦竹等纤维的利用。开发一种在经济上与不发达地区的小规模制浆操作相匹配的工艺的潜力将极大地提高区域经济，并大大减少这些设施对环境的影响。Abdel-Aal博士在木质素分离工艺方面有着长期的经验，而库珀博士在将工程工艺应用于环境问题的可行解决方案方面有着特殊的经验。在项目实施过程中，这两个项目将得到CMRDI和佛罗里达大学顾问的支持。该项目得到了美国-埃及联合基金方案的支持，该方案向两国的科学家和工程师提供赠款，以开展这些合作活动。