Phosphorus recovery potential in Sofia WWTP in view of the national sludge management strategy
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Authors
Author (Corporation)
Publication date
01/2017
Typ of student thesis
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Type
01A - Journal article
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Parent work
Resources, Conservation and Recycling
Special issue
DOI of the original publication
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Series
Series number
Volume
116
Issue / Number
Pages / Duration
152-159
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Publisher / Publishing institution
Elsevier
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Abstract
In view of the vital importance of phosphorus and its increasing scarcity as a natural resource, phosphorus recovery has recently gained significant scientific and technical interest. The aim of this study is to support the implementation of the Bulgarian national sludge management strategy, particularly its objective to achieve more efficient resource management of phosphorus in waste water treatment plants (WWTPs). The study estimates the potential for phosphorus recovery from the municipal WWTP at Sofia, the largest in Bulgaria, serving some 14% of the Bulgarian population. The phosphorus content of five process streams (thickener supernatant, dewatering centrate, sludge before digestion, sludge after digestion and ash) is analysed on the basis of one year of measurements. It is estimated that 170–250 t phosphorus could be recovered annually from the WWTP from digested sludge or ash, depending on the phosphorus recovery technology used.
Keywords
Sofia wastewater treatment plant (WWTP), Sludge phosphorus measurements, Sludge management strategy, Phosphorus recovery, Phosphorus budget, Phosphorus recovery
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ISBN
ISSN
1879-0658
0921-3449
0921-3449
Language
English
Created during FHNW affiliation
Yes
Strategic action fields FHNW
Publication status
Published
Review
Peer review of the complete publication
Open access category
License
Citation
Ribarova, I., Dimitrova, S., Lambeva, R., Wintgens, T., Stemann, J., & Remmen, K. (2017). Phosphorus recovery potential in Sofia WWTP in view of the national sludge management strategy. Resources, Conservation and Recycling, 116, 152–159. http://hdl.handle.net/11654/24035