Abstract
Decentralized wastewater systems (DWWSs) are an alternative to the ever-expanding sanitation problems in developing countries. This systematic review aims to identify the decentralized wastewater management system practices in developing countries. The PRISMA methodology and the archival research methods were used to identify papers published in the last 20 years through Scopus and Google Scholar. The results showed that about 45% of the studies conducted performance analyses of different types of decentralized wastewater systems, indicating a relatively average rate of practice and implementation of decentralization in various developing countries, even though there are constraints that hinder the adoption of the systems.
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