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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.

不同形式的生物质的使用在可持续能源的生产中变得越来越重要;重要的例子包括气化和厌氧消化（AD），仅AD就有可能提供超过40 TWh的可再生能源，相当于英国国内天然气需求的10%以上。因此，能源生产产生的废物，包括灰烬和垃圾，正在大量产生，而且可能会增加。来自气化厂的灰的主要处置路线是灰泻湖和垃圾填埋场;而来自厌氧消化的污泥通常被处置到土地上，没有成本。然而，在面对环境资源的压力，不断上升的垃圾填埋税和随之而来的废物最小化立法，废物再利用的替代方案越来越多地被寻求。以前的研究表明，生物质灰和碳酸盐可以是有用的营养源作物在营养有限的条件下。虽然几乎不含氮，但灰富含许多微量和大量营养素。同时，厌氧微生物是微量金属和氮的丰富来源，以及相对稳定的C形式，这可以改善土壤结构并增强土壤中的C-螯合。因此，如果结合起来，它是假设的混合物的灰分和碳酸盐可以被视为全面的养分供应商和土壤调理剂。本项目旨在开发一套新的土壤调理剂和植物肥料从灰分和碳酸盐废物流来自生物质能源发电。利用厌氧消化和气化技术从生物质产生商业规模的能源是一个快速增长的部门，预计到2020年将产生英国能源需求的15%。该提案支持生物质能源生产商支持循环经济的方式发生根本性变化，并促进了将商业理念与积极的环境效益相结合的新方法。它将支持一项范围研究，该研究将为多利益攸关方研究确定一个综合途径，支持有效实施和吸收新的废物流用于土壤调理。