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A Comprehensive Study on the Physicochemical Characteristics of Faecal Sludge in Greater Accra Region and Analysis of Its Potential Use as Feedstock for Green Energy
Joint Authors
Awuah, Esi
Ahmed, Issahaku
Ofori-Amanfo, Dennis
Cobbold, Florence
Source
Issue
Vol. 2019, Issue 2019 (31 Dec. 2019), pp.1-11, 11 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2019-07-01
Country of Publication
Egypt
No. of Pages
11
Main Subjects
Abstract EN
Design of treatment plants for faecal sludge management systems relies on a comprehensive accurate knowledge of FS (faecal sludge) characteristics, but this information is lacking.
Developing countries like Ghana, where large proportion of the urban population (Accra) rely on onsite sanitation systems, face a lot of FSM (faecal sludge management) design challenges as a result of lack of a comprehensive study data on physicochemical characteristics of raw faecal sludge after primary dewatering.
Achieving a fully operational FSM chain would imply a well understanding of the characteristics of the FS and its dynamics after primary dewatering.
A study was carried out to determine the characteristics of faecal sludge brought to the Lavender Hill treatment plant, Accra Metropolis, and environs to ensure the treatability and uses of the products after treatment.
The treatment plant receives an average of 150 trucks (1350m3) a day with 58% coming from private homes and 42% from public toilets.
Composite samples were made from both public and private toilets facilities.
Samples were taken from a reservoir holding faecal sludge from both public and private facilities, examined on daily basis and characterized.
The values obtained showed high concentrations of BOD and COD values.
The COD: BOD ratios showed that the faecal sludge is not stabilized yet and can be further degraded.
The calorific value for the dry sludge was found to be 15.16-15.82 MJ/kg and 16.39–18.31 MJ/kg for the wet sludge.
The calorific value of the sludge is adequate enough to be used as potential feedstock for green energy generation.
The high concentrations of COD and organic matter of the faecal sludge make it suitable enough for biogas generation.
A good correlation (r=0.909,R2=82.6%) between the calorific value and the TVS was found to be CV=0.122TVS+7.44.
Heavy metal concentrations were low and satisfied the EPA Ghana guidelines for sludge.
Thus products from the treatment can be used for agricultural purposes.
American Psychological Association (APA)
Ahmed, Issahaku& Ofori-Amanfo, Dennis& Awuah, Esi& Cobbold, Florence. 2019. A Comprehensive Study on the Physicochemical Characteristics of Faecal Sludge in Greater Accra Region and Analysis of Its Potential Use as Feedstock for Green Energy. Journal of Renewable Energy،Vol. 2019, no. 2019, pp.1-11.
https://search.emarefa.net/detail/BIM-1187047
Modern Language Association (MLA)
Ahmed, Issahaku…[et al.]. A Comprehensive Study on the Physicochemical Characteristics of Faecal Sludge in Greater Accra Region and Analysis of Its Potential Use as Feedstock for Green Energy. Journal of Renewable Energy No. 2019 (2019), pp.1-11.
https://search.emarefa.net/detail/BIM-1187047
American Medical Association (AMA)
Ahmed, Issahaku& Ofori-Amanfo, Dennis& Awuah, Esi& Cobbold, Florence. A Comprehensive Study on the Physicochemical Characteristics of Faecal Sludge in Greater Accra Region and Analysis of Its Potential Use as Feedstock for Green Energy. Journal of Renewable Energy. 2019. Vol. 2019, no. 2019, pp.1-11.
https://search.emarefa.net/detail/BIM-1187047
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1187047