Experimental and Modelling Investigation on the Impact of Engineered Biochars on the Abiotic and Biotic Removal of Hydrogen Sulfide in Sewer Systems

工程生物炭对下水道系统中硫化氢非生物和生物去除影响的实验和模型研究

• 批准号: 571394-2021
• 负责人: Berruti, FrancoF
• 金额: $ 2.19万
• 依托单位: University of Western Ontario
• 依托单位国家: 加拿大
• 项目类别: Alliance Grants
• 财政年份: 2022
• 资助国家: 加拿大
• 起止时间: 2022-01-01 至 2023-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=747275
• 关键词: Experimental; Modelling; Investigation; Impact; Engineered

Several problems are associated with the emission of hydrogen sulfide (H2S) from wastewaters including its toxicity, causing corrosion, and the release of odors. Different strategies have been applied for the reduction or removal of hydrogen sulfides, such as the use of air or oxygen, nitrates, metal salts (iron salt), and biological agents for the oxidation of sulfides. Since the costs associated with the current solutions are extremely high, the development of more efficient and economical methods is critical for small to large municipalities. The project will investigate the abiotic (physical-chemical) and biotic (microbial) chemical transformations related to iron-sulfur-phosphorus (Fe-S-P) interactions in sewer systems using laboratory-scale pilot plants in combination with novel sustainable materials derived from the combination of residual biomass and metal-rich wastes. Techno-economic studies and scale-up will be investigated and a larger pilot-scale testing unit will be implemented at the Middlesex Centre wastewater treatment plant to perform a real-world case study. One of the major benefits of the research component and pilot plant which will be implemented at the local municipality of Middlesex Center (MMC) is that its success will lead to the potential permanent implementation in that community, serving as a showcase that could be implemented elsewhere.

从废水中排放硫化氢（H2S）有几个问题，包括其毒性、引起腐蚀和释放气味。不同的策略已被应用于硫化氢的还原或去除，例如使用空气或氧气、硝酸盐、金属盐（铁盐）和生物试剂来氧化硫化物。由于与当前解决方案相关的成本极高，因此开发更有效和更经济的方法对于小型到大型城市至关重要。该项目将利用实验室规模的中试工厂，结合从残余生物质和富含金属的废物的组合中获得的新型可持续材料，调查与下水道系统中的铁-硫-磷（Fe-S-P）相互作用有关的非生物（物理-化学）和生物（微生物）化学转化。将对技术经济研究和扩大规模进行调查，并将在米德尔塞克斯中心废水处理厂建立一个更大的试验规模测试装置，以进行真实世界的案例研究。将在米德尔塞克斯中心（MMC）当地市政府实施的研究部分和试点工厂的主要好处之一是，其成功将导致该社区的潜在永久实施，作为可以在其他地方实施的展示。