Algae-Mediated Resource Recovery from Urban Wastewater

IF 6.4 2区环境科学与生态学 Q1 ENVIRONMENTAL SCIENCES Current Pollution Reports Pub Date : 2023-03-20 DOI:10.1007/s40726-023-00254-x

Muhammad Usman, Mahwish Amin, Iqra Kamal, Ayesha Shahid, Jingliang Xu, Md. Asraful Alam, Muhammad Aamer Mehmood, Ghulam Abbas Ashraf, Raj Boopathy

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引用次数: 3

Abstract

Purpose of Review

Microalgae-mediated resource recovery and recycling of wastewater might be useful in producing biomass, biofertilizers, and environmentally acceptable bioproducts. This review aims to provide a comprehensive understanding of the challenges and opportunities of wastewater valorization to valuable algal biomass by opting a self-sustainable carbon-neutral approach.

Recent Findings

Various challenges and opportunities of using unsterilized urban wastewater are explored to provide insights into addressing the processing issues. Major wastewater challenges include turbidity with blackish appearance, emerging contaminants, pathogenic microbial community, and higher nutrient load. A brief comparison of sterilization techniques has been made, mainly focusing on principles, advantages, and limitations. Despite the challenges, it is found that microalgae-based resource recovery could be a viable and promising opportunity in a wastewater-driven integrated biorefinery paradigm.

Summary

Despite the availability of various wastewater treatment methods, microalgae-based wastewater treatment is promising, and carbon neutral approach which transforms the nutrients to valuable biomass, thereby reducing the nutrient load of the water. However, microalgal cultivation in wastewater encounters physical and biological challenges. In this article, challenges, opportunities, and sterilization methods of wastewater are critically reviewed concerning microalgae-based resource recovery from the urban wastewater. The processing of wastewater-produced algal biomass could be valorized into multiple products in minimal waste and carbon-neutral paradigm.

Graphical Abstract

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城市污水中藻类介导的资源回收

微藻介导的废水资源回收和循环利用可用于生产生物质、生物肥料和环境可接受的生物制品。本文旨在通过选择一种自我可持续的碳中和方法，全面了解废水转化为有价值的藻类生物量的挑战和机遇。本文探讨了使用未经消毒的城市废水的各种挑战和机遇，为解决处理问题提供了见解。主要的废水挑战包括带有黑色外观的浊度、新出现的污染物、病原微生物群落和更高的营养负荷。简要比较了各种灭菌技术，主要集中于原理、优点和局限性。尽管存在挑战，但研究发现，在废水驱动的综合生物炼制范例中，基于微藻的资源回收可能是一个可行且有希望的机会。尽管有各种各样的废水处理方法，但基于微藻的废水处理是有前途的，而碳中和方法将营养物质转化为有价值的生物质，从而减少了水中的营养负荷。然而，微藻在废水中的培养面临着物理和生物方面的挑战。本文综述了以微藻为基础的城市污水资源化利用的挑战、机遇和灭菌方法。废水产生的藻类生物质的处理可以在最小废物和碳中和范例中转化为多种产品。图形抽象

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来源期刊

Current Pollution Reports Environmental Science-Water Science and Technology

CiteScore

12.10

自引率

1.40%

发文量

期刊介绍： Current Pollution Reports provides in-depth review articles contributed by international experts on the most significant developments in the field of environmental pollution.By presenting clear, insightful, balanced reviews that emphasize recently published papers of major importance, the journal elucidates current and emerging approaches to identification, characterization, treatment, management of pollutants and much more.