A microwave enhanced oxidation process for nutrients solubilization from organic slurries

微波增强氧化工艺从有机浆料中溶解营养物质

• 批准号: 395067-2009
• 负责人: Lo, KwangVictor
• 金额: $ 4.31万
• 依托单位: University of British Columbia
• 依托单位国家: 加拿大
• 项目类别: Collaborative Research and Development Grants
• 财政年份: 2013
• 资助国家: 加拿大
• 起止时间: 2013-01-01 至 2014-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=529186
• 关键词: microwave; enhanced; oxidation; process; nutrients

The purpose of this proposed project is to develop of an economically viable, technologically feasible process to recover valuable materials from organic bio-waste slurries. The peroxide-microwave (PM) process has been developed for the treatment and solubilization of sewage sludge and agricultural organic slurries at University of British Columbia (patent pending, filed for on Aug.11, 2006). The PM process consists of exposing slurries containing various organic solids to microwave (MW) radiation for a short period of time after the addition of hydrogen peroxide to alter the structure of the solid materials, and to release nutrients in the process. During this treatment, the suspended solids content of the biosolids is reduced, and various nutrients are released. The process has been shown to be very effective in reducing solids content and releasing nutrients from slurries of organic solids in the small-scale tests. It is an efficient, flexible and dynamic process for treating various slurries of organic materials that has considerable commercial potential. The specific objectives of this proposal are to: 1) develop and test the PM process in batch and continuous modes of operation, to further explore the effects and impacts of various operating parameters on treatment efficiency, before scale-up experiments can be conducted; and 2) design and build a suitable, larger scale, industrial PM system, based on lab-scale results, to conduct initial scale-up experiments to facilitate the full commercialization of a full-scale PM process.

本拟议项目的目的是开发一种经济上可行、技术上可行的工艺，从有机生物废物泥浆中回收有价值的材料。不列颠哥伦比亚省大学开发了过氧化物-微波（PM）工艺，用于处理和溶解污水污泥和农业有机浆料（专利申请中，2006年8月11日提交）。PM工艺包括在添加过氧化氢后将含有各种有机固体的浆料暴露于微波（MW）辐射短时间段以改变固体材料的结构，并在工艺中释放营养物。在这种处理过程中，生物固体的悬浮固体含量减少，并释放各种营养物质。在小规模试验中，这一方法在减少有机固体泥浆中的固体含量和释放营养物质方面非常有效。它是一种高效、灵活和动态的方法，用于处理各种有机材料的浆料，具有相当大的商业潜力。本提案的具体目标是：1）在进行放大实验之前，开发和测试间歇和连续操作模式下的PM工艺，以进一步探索各种操作参数对处理效率的影响和冲击;以及2）基于实验室规模的结果，设计和构建合适的、更大规模的工业PM系统，进行初步的放大实验，以促进全面的PM工艺的全面商业化。