Staff Publications

Staff Publications

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    'Staff publications' is the digital repository of Wageningen University & Research

    'Staff publications' contains references to publications authored by Wageningen University staff from 1976 onward.

    Publications authored by the staff of the Research Institutes are available from 1995 onwards.

    Full text documents are added when available. The database is updated daily and currently holds about 240,000 items, of which 72,000 in open access.

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Record number 552538
Title A review of mixing, design and loading conditions in household anaerobic digesters
Author(s) Jegede, A.O.; Zeeman, G.; Bruning, H.
Source Critical Reviews in Environmental Science and Technology 49 (2019)22. - ISSN 1064-3389 - p. 2117 - 2153.
DOI https://doi.org/10.1080/10643389.2019.1607441
Department(s) Environmental Technology
WIMEK
Publication type Refereed Article in a scientific journal
Publication year 2019
Keyword(s) Chinese dome digester (CDD) - household digesters - hydraulic retention time (HRT) - mixing
Abstract

Household digesters are anaerobic reactors applied mostly in rural areas of developing countries with tropical climate. The Chinese dome digester is the most popular household digester type in Asia and Africa, and has become the basis for contemporary developments in the household digester sector around the world. Household digesters are operated at ambient temperatures and have no internal mixing device, making them simple to operate. In the absence of internal mixing mechanism, the Chinese dome digester is mixed via pressure variation during gas production, gas use and feeding. Since mixing is limited in household digesters, they are operated at low organic loading rates and long hydraulic retention time when compared with forced mixed reactors. This review analyses and presents the various types of domestic biogas plants and operating parameters, with emphasis on mixing. Experimental results of household reactors, forced mixed reactors with different mixing modes and intensities were also reviewed and compared.

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