Management of sewage sludge – new possibilities involving partial cement replacement
Reads0
Chats0
TLDR
In this article, the authors proposed an approach, while eliminating the need to dispose ash at non-hazardous waste disposal sites, directly reduces not only the sludge and ash disposal costs, but also the raw cement production costs.Abstract:
An increasing trend of sludge generation at wastewater treatment plants (WWTP) has been observed in developing countries like Croatia. Thermal processing of sewage sludge facilitates its further management, although ash is generated as new waste in the process. The proposed approach, while eliminating the need to dispose ash at non-hazardous waste disposal sites, directly reduces not only the sludge and ash disposal costs, but also the raw cement production costs. All analysed technical and environmental requirements are met when 20 % of cement is replaced with ash.read more
Citations
More filters
Journal ArticleDOI
Sewage Sludge Thermal Treatment Technology Selection by Utilizing the Analytical Hierarchy Process
TL;DR: In this paper, an example of the utilization of an analytical hierarchy process, as a decision-making tool in terms of technology selection, for sewage sludge management in Rijeka, Croatia is presented.
Journal ArticleDOI
Enhancing the sustainability of high strength concrete in terms of embodied energy and carbon emission by incorporating sewage sludge and fly ash
TL;DR: In this paper , the properties of dried sewage sludge and its influence on the microstructure development of HVFA concrete when used as a partial replacement of binder material are discussed.
Journal ArticleDOI
Effects of addition of finely ground CRT glass on the properties of cement paste and mortar
TL;DR: In this article, a part of cement was replaced with finely ground cathode ray tube (CRT) glass, and the following mass percentages of cement were replaced with glass: 5%, 10%, 15, 20%, 20% and 35%.
Journal ArticleDOI
Sludge management practices: Drivers, opportunities and implications for small island developing states
TL;DR: In this article , a systematic literature review of research papers published in the area of waste management to determine the transformation of sewage sludge in view of uncovering ideal global processes is conducted.
References
More filters
Journal ArticleDOI
Utilization of sewage sludge in EU application of old and new methods—A review
D. Fytili,Anastasia Zabaniotou +1 more
TL;DR: In this article, the authors review past and future trends in sludge handling, focusing mainly at thermal processes (e.g. pyrolysis, wet oxidation, gasification) and the utilization of sewage sludge in cement manufacture as a co-fuel.
Journal ArticleDOI
Recycling and recovery routes for incinerated sewage sludge ash (ISSA): a review.
TL;DR: The authors in this article reviewed the drivers for increasing incineration of sewage sludge and the characteristics of the resulting incinerated sludge ash (ISSA) and concluded that ISSA has significant potential to be used as a secondary source of phosphate for the production of fertilisers and phosphoric acid.
Journal ArticleDOI
Comparison of test methods to assess pozzolanic activity
TL;DR: In this paper, the authors compared the pozzolanic activity of metakaolin, silica fume, coal fly ash, incinerated sewage sludge ash and sand using the Frattini test, the saturated lime test and the strength activity index test.
Journal ArticleDOI
Technological and Environmental Behavior of Sewage Sludge Ash (SSA) in Cement-based Materials
TL;DR: In this article, the physical, chemical and mineralogical characteristics of SSA, and the evaluation of its use in cement-based materials, are presented in order to compare the residue used in this study with others included in the same category.
Journal ArticleDOI
Properties and microstructure of lightweight aggregate produced from sintered sewage sludge ash
TL;DR: In this article, the properties of lightweight aggregate (LWA) manufactured from the ash produced by fluidised bed incineration of sewage sludge have been investigated, including density, apparent specific gravity, water absorption and compressive strength.