Production of Volatile Fatty Acids from Organic-Rich Waste Streams: Current Issues, Challenges, and Opportunities

IF 6.4 2区环境科学与生态学 Q1 ENVIRONMENTAL SCIENCES

Current Pollution Reports Pub Date : 2024-07-22 DOI:10.1007/s40726-024-00321-x

Thu Hang Duong, Tran Thi Viet Nga

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Abstract

Purpose of Review

Shortage of resources and waste-related problems have been exacerbated in recent years due to the growing population and bustling commercial and industrial development. In this research, the production of volatile fatty acids (VFA) from organic waste streams has been reviewed, focusing on current issues and challenges in promoting the hydrolysis of biopolymers in the organic feedstocks, controlling impacting factors of the fermentation processes, and extraction and purification techniques of these valuable products.

Recent Findings

Development of high sludge concentration systems under acidogenic conditions can be among the key approaches to high VFA productivity systems. An example of comparing VFA platforms with methane versus conventional aerobic treatment of two types of organic-rich wastewater generated in Vietnam shows the potential opportunities for maximizing resource recovery from organic-rich waste streams.

Summary

The main current issues and challenges are the increase in VFA yields, selective VFA product spectrums, and effective harvest of VFA from the fermentation broth. This review presents directive opportunities for the development of waste treatment technology to produce valuable chemicals and materials.

Abstract Image

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从富含有机物的废物流中生产挥发性脂肪酸：当前的问题、挑战和机遇

综述目的近年来，随着人口的不断增长和工商业的蓬勃发展，资源短缺和废物相关问题日益严重。本研究综述了从有机废物流中生产挥发性脂肪酸（VFA）的过程，重点探讨了当前在促进有机原料中生物聚合物的水解、控制发酵过程的影响因素以及这些有价值产品的提取和纯化技术方面存在的问题和挑战。对越南产生的两种富含有机物的废水进行甲烷 VFA 平台与传统好氧处理的比较实例表明，最大限度地从富含有机物的废物流中回收资源具有潜在的机会。摘要当前的主要问题和挑战是提高 VFA 产量、选择性 VFA 产品谱以及从发酵液中有效提取 VFA。本综述为开发废物处理技术以生产有价值的化学品和材料提供了指导性机会。

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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.