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.

与废水中的硫化氢(H_2S)排放相关的几个问题包括其毒性、引起腐蚀和气味的释放。对减少或去除硫化氢采用了不同的策略，例如使用空气或氧气、硝酸盐、金属盐(铁盐)和用于硫化物氧化的生物制剂。由于当前解决方案的相关成本极高，因此开发更高效、更经济的方法对于小到大的市政当局来说至关重要。该项目将利用实验室规模的中试装置，结合从剩余生物质和富含金属的废物中提取的新型可持续材料，研究下水道系统中与铁-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实施更大规模的试验装置，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的主要好处之一是，它的成功将导致该社区潜在的永久实施，作为一个可以在其他地方实施的展示。