Temat: conductivity of sewage sludge - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Drop in Conductivity of Sewage Sludge in the Process of Autothermal Thermophilic Aerobic Digestion
Autorzy:: Bartkowska, I.
Powiązania:: https://bibliotekanauki.pl/articles/123193.pdf
Data publikacji:: 2017
Wydawca:: Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:: autothermal stabilization of sewage sludge
conductivity of sewage sludge
neutralization of sewage sludge
sanitation of sewage sludge
sewage sludge processing
Opis:: The article presents research on the assessment of electrolytic conductivity changes of sludge during the process of its autothermal thermophilic aerobic digestion (ATAD), which takes place in a two-stage installation system, operating in a municipal sewage-treatment plant. In the years 2012–2014 sludge was studied and the results were analyzed. Thickened sludge in the intermediate tank, which was then directed to installation reactors, was examined. Conductivity was measured in each tank. In this manner collected results made it possible to follow the changes of this index at consecutive stages of the system. The results were statistically analyzed and it was determined to what degree, as a result of an objective process, the values of processed sludge conductivity would change. The conclusions from the carried-out studies and from own experiments are also presented.
Źródło:: Journal of Ecological Engineering; 2017, 18, 4; 67-75
2299-8993
Pojawia się w:: Journal of Ecological Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: Possible applications of hardening slurries with fly ash from thermal treatment of municipal sewage sludge in environmental protection structures
Autorzy:: Falaciński, P.
Szarek, Ł.
Powiązania:: https://bibliotekanauki.pl/articles/241168.pdf
Data publikacji:: 2016
Wydawca:: Polska Akademia Nauk. Instytut Budownictwa Wodnego PAN
Tematy:: hardening slurry
cut-off walls
fly ash from thermal treatment of municipal sewage sludge
hydraulic conductivity
Opis:: In Poland, in recent years, there has been a rapid accumulation of sewage sludge – a by-product in the treatment of urban wastewater. This has come about as a result of infrastructure renewal, specifically, the construction of modern sewage treatment plants. The more stringent regula tions and strategic goals adopted for modern sewage management have necessitated the application of modern engineering methodology for the disposal of sewage sludge. One approach is incineration. As a consequence, the amount of fly ash resulting from the thermal treatment of municipal sewage sludge has grown significantly. Hence, intensive work is in progress for environmentally safe management of this type of waste. The aim of the experiment was to evaluate the possibility of using the fly ash that results from municipal sewage sludge thermal treatment (SSTT) as an additive to hardening slurries. This type of hardening slurry with various types of additives, e.g. coal combustion products, is used in the construction of cut-off walls in hydraulic structures. The article presents the technological and functional parameters of hardening slurries with an addition of fly ash obtained by SSTT. Moreover, the usefulness of these slurries is analysed on the basis of their basic properties, i.e. density, contractual viscosity, water separation, struc- tural strength, volumetric density, hydraulic conductivity, compressive and tensile strength. The mandated requirements for slurries employed in the construction of cut-off walls in flood embankments are listed as a usefulness criteria. The article presents the potential uses of fly ash from SSTT in hardening slurry technology. It also suggests directions for further research to fully identify other potential uses of this by-product in this field.
Źródło:: Archives of Hydro-Engineering and Environmental Mechanics; 2016, 63, 1; 47-61
1231-3726
Pojawia się w:: Archives of Hydro-Engineering and Environmental Mechanics
Dostawca treści:: Biblioteka Nauki

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