Pathways to economic viability: a pilot scale and techno-economic assessment for algal bioremediation of challenging waste streams,Environmental Science: Water Research & Technology

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Pathways to economic viability: a pilot scale and techno-economic assessment for algal bioremediation of challenging waste streams
Environmental Science: Water Research & Technology ( IF 3.5 ) Pub Date : 2020-10-27 , DOI: 10.1039/d0ew00700e
Hannah Leflay _{1,

2,

3} , Katarzyna Okurowska _{1,

2,

3} , Jagroop Pandhal _{1,

2,

3} , Solomon Brown _{1,

2,

3}

Affiliation

Waste production and landfilling are a growing problem due to population growth and more affluent societies following a ‘take-make-waste’ linear economy. All landfills generate leachate, which must be detoxified before release to the environment. Current leachate treatment technologies are often energy intensive, relatively expensive and ignore the potential resources which are contained within. The use of adapted microbial consortia for bioremediation of leachate offers not only treatment but an opportunity for reutilisation of lost resources, converting them to fuel, feed and chemical products. In this study, pilot scale experimental data for algal–bacterial leachate treatment in a 300 L photobioreactor is used to perform a techno-economic analysis. The analysis considers the process at larger scales and evaluate where optimisation and future research should be focused to reduce costs and make the treatment financially competitive with existing technologies. Reductions in capital expenditure and treatment time are key areas for cost reductions; potentially saving around 90% of the total treatment costs.

中文翻译：

经济可行性的途径：对具有挑战性的废物流进行藻类生物修复的试验规模和技术经济评估

由于人口的增长和“一劳永逸”的线性经济之后的富裕社会，废物生产和填埋成为一个日益严重的问题。所有垃圾填埋场都会产生渗滤液，必须将其清除后才能释放到环境中。当前的渗滤液处理技术通常是能量密集的，相对昂贵的，并且忽略了其中所包含的潜在资源。适应微生物联合体对渗滤液的生物修复的使用不仅提供了处理方法，而且还提供了重新利用损失资源，将其转化为燃料，饲料和化学产品的机会。在这项研究中，使用300 L光生物反应器处理藻类-细菌渗滤液的中试规模实验数据用于进行技术经济分析。该分析从更大的角度考虑了该过程，并评估了优化和未来研究应集中在哪里，以降低成本并使该疗法在经济上与现有技术竞争。减少资本支出和治疗时间是降低成本的关键领域；可能节省约90％的总治疗费用。

更新日期：2020-11-03

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