Developing a suite of novel land conditioners and plant fertilisers from the waste streams of biomass energy generation

利用生物质能源发电的废物流开发一套新型土地改良剂和植物肥料

基本信息

批准号：
NE/K015885/1
负责人：
Kirk Semple
金额：
$ 7.9万
依托单位：
Lancaster University
依托单位国家：
英国
项目类别：
Research Grant
财政年份：
2013
资助国家：
英国
起止时间：
2013 至无数据
项目状态：
已结题

来源：
https://gtr.ukri.org/projects?ref=NE%2FK015885%2F1
关键词：
Developing suite novel land conditioners

项目摘要

The use of different forms of biomass is becoming more important in the production of sustainable forms of energy; important examples include gasification and anaerobic digestion (AD)AD alone has the potential to deliver over 40TWh of renewable energy, equivalent to over 10% of the UK's domestic gas demand. As such, waste from energy generation, including ashes and digestate, are being produced in large volumes and this is likely to grow. The dominant disposal route for ash from gasification plants is to ash lagoons and landfill; whilst digestates, derived from anaerobic digestion, are typically disposed of to land at no cost. However, in the face of rising pressures on environmental resources, rising landfill taxes and accompanying waste-minimisation legislation, alternative options for waste reuse are increasingly being sought.Previous studies have demonstrated that biomass-ash and digestate can be useful nutrient sources for crop plants in nutrient limited conditions. Although virtually nitrogen free, ash is rich in many micro- and macro-nutrients. Whilst, anaerobic digestate is a rich source of trace metals and nitrogen, as well as relatively stable forms of C, which may improve soil structure and enhance C-sequestration within soil. Therefore, if combined, it is hypothesised that the mixtures of ash and digestate may be regarded as comprehensive nutrient providers and soil conditioners.This project seeks to develop a suite of novel soil conditioners and plant fertilisers from ash and digestate waste streams originating from biomass energy generation. Commercial scale energy generation from biomass, using anaerobic digestion and gasification technology is a rapidly growing sector and is forecast to generate 15% of the UK's energy demand by 2020. This proposal supports a radical change in the way that biomass energy producers can support a circular economy and facilitates new ways to mesh commercial ideas with positive environmental benefits. It would support a scopingstudy that would define an integrated pathway for multi-stakeholder research that underpins effective implementation and uptake of a new waste stream for soil conditioning.

在可持续的能源形式的生产中，使用不同形式的生物质变得越来越重要。重要的例子包括气化和厌氧消化（AD）AD，有可能提供40TWH的可再生能源，相当于英国的家庭天然气需求的10％以上。因此，包括灰烬和消化物在内的能源产生的废物正在大量生产中，这很可能会增长。气化厂的灰烬的主要处置路线是灰泻湖和垃圾填埋场。虽然源自厌氧消化的消化，但通常会无需将其处置为降落。但是，面对环境资源的压力，垃圾填埋税和随附的废物最小化立法的增加，越来越多地寻求废物再利用的选择。替代选择可以证明，在营养有限的条件下，生物量 - ash和消化酸盐可以是农作物的有用营养源。尽管实际上不含氮，但灰分富含许多微量和宏观营养素。尽管厌氧消化物是痕量金属和氮的丰富来源，以及相对稳定的C形式，可以改善土壤结构并增强土壤内的C序列。因此，如果合并，可以假设灰分和消化酸盐的混合物可能被视为全面的营养提供者和土壤调节剂。该项目旨在开发一套新型的土壤调节剂，并从灰烬和消化的废物流中开发出源自生物质量产生的废物流。使用厌氧消化和气化技术从生物量产生商业规模的能源是一个快速增长的领域，预计到2020年，英国能够产生15％的英国能源需求。该提案支持生物质能源生产商可以支持循环经济的方式的根本性变化，并促进新的方式与积极的环境利益相结合。它将支持一个范围的研究，该范围将定义多方利益相关者研究的综合途径，该途径为有效的实施并吸收了用于土壤调节的新废物流。