Wyniki wyszukiwania - BazTech

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Możliwości wykorzystania popiołów paleniskowych ze spalania osadów ściekowych w betonach cementowych

Głowacka Anna, Kiper Justyna, Horszczaruk Elżbieta, Strzałkowski Jarosław

Materiały Budowlane

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2024

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nr 8

11--14

PL

Poszukiwanie alternatywnych materiałów mogących zastąpić podstawowe składniki betonu to jeden z najważniejszych kierunków badań naukowych ostatnich lat. W artykule przedstawiono wyniki badań zastosowania w betonie popiołów paleniskowych powstających w wyniku obróbki termicznej osadów ściekowych w jednej z polskich spalarni. Opisano zmiany właściwości mechanicznych i termicznych betonów cementowych, w których cement został zastąpiony popiołem paleniskowym w ilości: 0, 10, 20 i 30% objętości cementu. Przeprowadzone badania wykazały możliwość stosowania popiołów paleniskowych ze spalania osadów ściekowych w betonach konstrukcyjnych.

EN

The search for alternative materials that can replace the basic components of concrete is one of the most important directions of scientific research in recent years. The article presents the results of research on the use of bottomash generated as a result of thermal treatment of sewage sludge in concrete in one of the Polish incinerators. Changes in the mechanical and thermal properties of cement concretes were described in which the cement was replaced with bottom ash in the following amounts: 0, 10, 20 and 30% of the cement volume. The tests carried out showed the possibility of using bottom ash from the combustion of sewage sludge in structural concrete.

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Osad granulowany

Głowacka Anna, Kiper Justyna

Wodociągi - Kanalizacja

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2019

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nr 9

12--14

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Analysis of the Variability of the Composition of Sewage Sludge Before and After Drying Treatment – SEM Studies

Kiper Justyna, Głowacka Anna, Rucińska Teresa

Journal of Ecological Engineering

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2019

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Vol. 20, nr 7

45--52

EN

The aim of the study was to determine the physical and chemical properties of the sewage sludge from “Pomorzany” and “Zdroje” municipal wastewater treatment plants located in Szczecin, Poland. The paper presents the outcomes of SEM observation of dried and stabilized sewage sludge. The research on the obtained materials was conducted using reference methods; the images from a scanning electron microscope were used. The amount of sewage sludge produced with the methods of its management was presented. The technology of sludge management is based on its dehydration up to dry weight content of roughly 20% and then drying in contact dryers up to 90–92% dry weight, separately in both plants. Dried sewage sludge is subsequently burned in mechanical grid boilers at “Pomorzany” WWTP. The analyzed materials were characterized by the pH of 7.90–8.42, dry mass and average organic matter content were 18.949% and 68.903%, respectively. The elements identified in the largest amount on the surface of analyzed materials included calcium, iron, phosphorus, sulphur and silicon. The amount of phosphorus ranging from 1.82 to 3.44% indicates the possibility of using sewage sludge as organic fertilizer product or an alternative source of phosphorus.