Potential utilisation of Water Hyacinth biomass following phytoremediation of wastewater

废水植物修复后水葫芦生物质的潜在利用

• 批准号: 1941528
• 金额: --
• 依托单位: University of Leeds
• 依托单位国家: 英国
• 项目类别: Studentship
• 财政年份: 2017
• 资助国家: 英国
• 起止时间: 2017 至 无数据
• 项目状态: 已结题
• 来源: https://gtr.ukri.org/projects?ref=studentship-1941528
• 关键词: Potential; utilisation; Water; Hyacinth; biomass

Freshwater is in an important resource for the global community; although there are extensive water supplies available, the majority of this is saline and therefore expensive to exploit. Industrial wastewater constitutes a significant portion of freshwater; for example, mining and refinery process waters. This water contains a range of resources in often significant proportions. The release of these resources into the natural environment can be seen as contamination as well as a significant waste of resources. Algae has been shown to have high affinity for certain elements, through biosorption, and in some cases reduce them (e.g. Au3+ to Au). This could potentially offset the cost of growing algae and its subsequent use as a feedstock for bioenergy.This project would initially study the mechanisms of contaminant/resource immobilisation by freshwater algae, optimising the conditions for immobilisation through changes in biological and chemical conditions (e.g. salinity). This would involve the growth of algae in bioreactors; then analysing the functional groups on the surface of the algae, after condition optimisation, and the effects this has on the surface sorption of the resources targeted. Each resource will be tested in varying concentrations to determine the total potential surface sorption (with some potential for absorption). In tandem, resource immobilisation within natural systems will be conducted; determining effective species and waste water streams for the immobilisation of resources/contaminants. This will give a greater depth to the study by looking at real scenarios and therefore the theoretical potential for the implementation. The two studies will be used to develop a cost effective and efficient resource immobilisation within a set waste water stream. This will then be compared to current recovery/remediation techniques through a Cost-Benefit-Analysis (in collaboration) and determine the overall feasibility of using algae; taking into account the use of algal biomass as feedstock of bioenergy after remediation. Objectives:Identify and cultivate several species of algae with optimal properties for resource immobilisationOptimise conditions for resource immobilisation within a laboratory environment, through the use of algae as a bio-sorbent/bio-accumulatorIdentify relevant waste water systems with significant levels of resources and procure samplesDemonstrate resource immobilisation of natural samples within a laboratory environment, through the use of algae as a bio-sorbent/bio-accumulatorDevelop cost effective and efficient methods resource immobilisation of natural samples within a laboratory environmentCompare with current best practice of remediation and resource recovery/production

淡水是全球社会的一种重要资源;虽然有大量的水供应，但其中大部分是盐水，因此开发成本很高。工业废水构成淡水的重要部分;例如，采矿和炼油工艺沃茨。这些水含有一系列资源，往往比例很大。将这些资源释放到自然环境中可被视为污染以及资源的重大浪费。藻类已被证明通过生物吸附对某些元素具有高亲和力，并且在某些情况下将它们还原（例如Au 3+还原为Au）。这个项目将首先研究淡水藻类固定污染物/资源的机制，通过改变生物和化学条件（例如盐度）来优化固定的条件。这将涉及藻类在生物反应器中的生长;然后在条件优化后分析藻类表面上的官能团，以及这对目标资源的表面吸附的影响。将在不同浓度下对每种资源进行测试，以确定表面吸附的总潜力（具有一定的吸收潜力）。同时，将在自然系统内进行资源固定;确定有效的物种和废水流，以固定资源/污染物。这将通过研究真实的情景，从而研究实施的理论潜力，使研究更加深入。这两项研究将用于在设定的废水流中开发具有成本效益和效率的资源固定。然后将通过成本效益分析（协作）将其与目前的回收/补救技术进行比较，并确定使用藻类的总体可行性;同时考虑到补救后将藻类生物质用作生物能源的原料。目标：识别和培养几种具有最佳资源固定特性的藻类通过使用藻类作为生物吸附剂/生物累积剂优化实验室环境中资源固定的条件识别具有显著资源水平的相关废水系统并获取样品通过使用藻类作为生物吸附剂/生物累积剂演示实验室环境中天然样品的资源固定开发实验室环境中天然样品的资源固定的成本效益和高效方法与当前补救和资源回收/生产的最佳实践进行比较