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

废水中硫化氢（H2S）的排放涉及几个问题，包括其毒性、引起腐蚀和释放气味。已采用不同的策略来减少或去除硫化氢，例如使用空气或氧气、硝酸盐、金属盐（铁盐）和生物剂来氧化硫化物。由于与当前解决方案相关的成本非常高，因此开发更有效和更经济的方法对于小到大的市政当局至关重要。该项目将研究下水道系统中与铁-硫-磷（Fe-S-P）相互作用相关的非生物（物理-化学）和生物（微生物）化学转化，使用实验室规模的中试工厂，结合来自残余生物质和富金属废物的新型可持续材料。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污水处理厂实施一个更大的中试规模测试单元，以进行现实世界的案例研究。将在米德尔塞克斯中心（MMC）当地市政当局实施的研究部分和试点工厂的主要好处之一是，它的成功将导致该社区潜在的永久实施，作为可以在其他地方实施的示范。

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.