Biohydrogen production from spent wastewater treatment Substrates: Techno-Economic viability and sustainability

IF 7.1 2区工程技术 Q1 ENERGY & FUELS

Sustainable Energy Technologies and Assessments Pub Date : 2025-01-31 DOI:10.1016/j.seta.2025.104202

Raana Fahim , Liu Cheng

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Abstract

This critical review highlights the potential of utilizing spent wastewater treatment substrates for biohydrogen (bioH₂) production, offering an eco-friendly and cost-effective solution aligned with Sustainable Development Goals (SDG 7) by promoting renewable energy production. Spent wastewater substrates are excellent feedstock due to their high organic and nutrient content, facilitating efficient waste-to-energy conversion. A hypothetical techno-economic analysis demonstrates financial viability, with key metrics such as a favorable return on investment and promising net present value, driven by low operational costs and substantial revenue from bioH₂ sales. Additionally, reusing the bioH₂-generated digestate as a biofertilizer and the treated wastewater for agricultural or industrial applications enhances sustainability and economic benefits. Integrating advanced pretreatment technologies, microbial consortia and carbon credit incentives can further enhance process efficiency and economic sustainability. Addressing challenges like low bioH₂ yield, production of inhibitors, and scalability barriers requires targeted research, pilot scale validation and supportive policies. Scaling up pilot projects and strengthening public–private partnerships are crucial for commercialization, paving the way for sustainable bioH₂ production from wastewater and advancing global renewable energy goals.

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来源期刊

Sustainable Energy Technologies and Assessments Energy-Renewable Energy, Sustainability and the Environment

CiteScore

12.70

自引率

12.50%

发文量

1091

期刊介绍： Encouraging a transition to a sustainable energy future is imperative for our world. Technologies that enable this shift in various sectors like transportation, heating, and power systems are of utmost importance. Sustainable Energy Technologies and Assessments welcomes papers focusing on a range of aspects and levels of technological advancements in energy generation and utilization. The aim is to reduce the negative environmental impact associated with energy production and consumption, spanning from laboratory experiments to real-world applications in the commercial sector.