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Intermediate dark fermentation as a platform technology for chemical recycling and biorefineries

中间暗发酵作为化学回收和生物精炼的平台技术

基本信息

批准号：
2881988
负责人：
金额：
--
依托单位：
CRANFIELD UNIVERSITY
依托单位国家：
英国
项目类别：
Studentship
财政年份：
2023
资助国家：
英国
起止时间：
2023 至无数据
项目状态：
未结题

来源：
https://gtr.ukri.org/projects?ref=studentship-2881988
关键词：
Intermediate dark fermentation platform technology

项目摘要

Reducing dependency on external chemical supplies for wastewater treatment is a strategic priority for the water sector, in order to sustain a resilient treatment that is not exposed to availability and costs of chemical supplies. Separately, decarbonising the chemical supply for treatment plays a key role on the long-term ambition of water utilities to deliver a low carbon service to customers. This project will investigate the strategic role of biorefineries in generating bio-based materials that can substitute fossil-based fuels and chemicals. In the short term, intermediate dark fermentation can offer a route to recover volatile fatty acids (VFAs) for internal use within wastewater treatment plants (WWTPs), suppressing the need for external carbon sources for biological nitrogen and phosphorus removal (BNPR) and providing a carbon neutral chemical source. In the longer term, VFAs, as the most versatile platform chemical extractable form sewage sludge, can be physically extracted or chemically/biologically converted to a range of high value products and fuels, with bioplastics, animal feed, biogas, hydrogen as examples. Although underexplored for sludge feedstocks, the potential of dark fermentation to generate green hydrogen is also a concomitant benefit. This project aims to develop dark fermentation as an enabling technology for circular economy in the water sector.

减少对外部化学品供应对废水处理的依赖是水部门的战略重点，以便维持不受化学品供应的可用性和成本影响的弹性处理。另外，在水务公司向客户提供低碳服务的长期目标中，脱碳处理化学品供应发挥着关键作用。该项目将研究生物精炼厂在生产可替代化石燃料和化学品的生物基材料方面的战略作用。在短期内，中间暗发酵可以提供一条途径来回收挥发性脂肪酸（VFAs）供污水处理厂（WWTPs）内部使用，抑制生物脱氮除磷（BNPR）对外部碳源的需求，并提供碳中性化学源。从长远来看，VFAs作为从污水污泥中化学提取的最通用的平台，可以物理提取或化学/生物转化为一系列高价值产品和燃料，如生物塑料、动物饲料、沼气、氢气。虽然对污泥原料的开发不足，但暗发酵产生绿色氢的潜力也是一个附带的好处。该项目旨在开发暗发酵作为水部门循环经济的使能技术。