Strategies for achieving energy neutrality in biological nutrient removal systems - a case study of the Slupsk WWTP (northern Poland) - Publication - Bridge of Knowledge

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Strategies for achieving energy neutrality in biological nutrient removal systems - a case study of the Slupsk WWTP (northern Poland)

Abstract

The paper presents a model-based evaluation of technological upgrades on the energy and cost balance in a large biological nutrient removal wastewater treatment plant (WWTP) in the city of Slupsk (northern Poland). The proposed upgrades include chemically enhanced primary sludge removal and reduction of the nitrogen load in the deammonification process employed for reject water treatment. Simulations enabled to estimate the increased biogas generation and decreased energy consumption for aeration. The proposed upgrades may lead the studied WWTP from the energy deficit to energy neutrality and positive cost balance, while still maintaining the required effluent standards for nitrogen. The operating cost balance depends on the type of applied coagulants/ flocculants and specific costs of electric energy. The choice of the coagulant/ flocculant was found as the main factor determining a positive cost balance.

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Accepted or Published Version
DOI:
Digital Object Identifier (open in new tab) 10.2166/wst.2016.564
License
Copyright (2017 IWA Publishing)

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Category:
Articles
Type:
artykuł w czasopiśmie wyróżnionym w JCR
Published in:
WATER SCIENCE AND TECHNOLOGY no. 75, edition 3, pages 727 - 740,
ISSN: 0273-1223
Language:
English
Publication year:
2017
Bibliographic description:
Zaborowska E., Czerwionka K., Mąkinia J.: Strategies for achieving energy neutrality in biological nutrient removal systems - a case study of the Slupsk WWTP (northern Poland)// WATER SCIENCE AND TECHNOLOGY. -Vol. 75, iss. 3 (2017), s.727-740
DOI:
Digital Object Identifier (open in new tab) 10.2166/wst.2016.564
Verified by:
Gdańsk University of Technology

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