Understanding and optimization of the plug-flow enzymatic hydrolysis process for sludge anaerobic digestion performance enhancement

提高污泥厌氧消化性能的推流酶水解工艺的理解和优化

• 批准号: 484723-2015
• 负责人: Chang, Sheng
• 金额: $ 2.19万
• 依托单位: University of Guelph
• 依托单位国家: 加拿大
• 项目类别: Collaborative Research and Development Grants
• 财政年份: 2016
• 资助国家: 加拿大
• 起止时间: 2016-01-01 至 2017-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=600023
• 关键词: Understanding; optimization; plug; flow; enzymatic

The recent paradigm shift to consider municipal wastewater as the valuable energy and nutrient sources has largely stimulated research interests in the anaerobic digestion: a key technology to recover clean energy from sludge generated in biological wastewater treatment . Foreseeing the critical importance of the hydrolysis pre-treatment to enhance the energy recovery of anaerobic digestion, GE Water and Process Technologies (GE WPT) has recently acquired the Monsal Enzymatic Hydrolysis (EH) technology, for its waste to energy solutions. In order to further proliferate the EH technology to the global market through GE's commercial and execution capability, GE WPT, Oakville, is leading an effort to further optimize the EH design to confront competitions of other technologies in the global market. Optimization of the EH process needs to develop a deep understanding of the process mechanisms, principles of enzymatic hydrolysis reactions, and effect of key design parameters. In this project, we will investigate the effect of key process factors of the EH on the hydrolysis performance and biogas production, characterize properties of hydrolysis enzymes produced in the EH process, and explore methods to enhance the performance of the EH via the supplement of enzymes. The project will involve the bench-scale hydrolysis and biochemical methane potential (BMP) studies to identify the optimal EH process design and operation conditions and the pilot-scale study to evaluate the conditions identified by the optimal conditions for the EH process design optimization and product management. The outcomes of this project will exert critical impacts on the optimization of GE's EH product; the EH process simulation and product cost analysis; and the expansion of the applications of the EH technology in the global market. In addition, the development of the advanced EH technology will contribute to Canada's commitment to the greenhouse gas (GHG) emission reduction via advancing the renewable energy production technology and reducing the energy consumption related to wastewater treatment.

最近将城市废水视为宝贵的能源和营养来源的范式转变在很大程度上激发了人们对厌氧消化的研究兴趣：厌氧消化是从生物废水处理产生的污泥中回收清洁能源的关键技术。预见到水解预处理对提高厌氧消化能量回收的重要性，GE水处理技术公司（GE WPT）最近收购了Monsal酶水解（EH）技术，用于其废物能源解决方案。为了通过GE的商业和执行能力将EH技术进一步推广到全球市场，GE WPT（奥克维尔）正在努力进一步优化EH设计，以应对全球市场上其他技术的竞争。EH工艺的优化需要深入了解工艺机理、酶解反应原理和关键设计参数的影响。本项目将研究EH的关键工艺因素对水解性能和产气量的影响，表征EH过程中产生的水解酶的性质，探索通过添加酶来提高EH性能的方法。该项目将涉及实验室规模的水解和生化甲烷潜力（BMP）的研究，以确定最佳的EH工艺设计和操作条件和中试规模的研究，以评估所确定的条件的最佳条件的EH工艺设计优化和产品管理。该项目的成果将对GE公司EH产品的优化、EH过程模拟和产品成本分析以及EH技术在全球市场的应用扩展产生重要影响。此外，先进的EH技术的开发将有助于加拿大通过推进可再生能源生产技术和减少与废水处理相关的能源消耗来实现温室气体（GHG）减排的承诺。