Comprehensive stabilization of all streams of solid residues formed during sewage sludge thermal treatment – Case study

2018 ◽  
Vol 178 ◽  
pp. 757-767 ◽  
Author(s):  
Bartłomiej Michał Cieślik ◽  
Marek Zając ◽  
Agnieszka Gałuszka ◽  
Piotr Konieczka
2006 ◽  
Vol 530-531 ◽  
pp. 734-739 ◽  
Author(s):  
L.C. Morais ◽  
Jo Dweck ◽  
E.M. Gonçalves ◽  
Pedro M. Büchler

This study shows a possibility of using sewage sludge after thermal treatment (at 1050°C for 3h) in the production of a building material. The use of dehydrated sewage sludge as a component in building materials, like in the sludge-clay mixture employed in the manufacture of bricks, tiles and cements, has been frequently done around the world. During sludge-clay mixture firing, which was done by controlled heating at a temperature above of 1000°C for 3h, organic substances of the sludge were completely eliminated. After thermal treatment, the micropores formed due to the released expansive gases, are responsible for the acoustic and thermal isolation properties of the resulting material. A problem found in the ashes was the high concentration of toxic compounds like Zn, Ni, Cr, Cu, Al oxides. The aim of the present work was to observe through scanning electron microscopy (SEM), X-ray fluorescence (XRF) and inductively coupled plasma optical emission spectrometer (ICP-OES) the integration of these oxides into the sintered ceramic matrix of sludge. Oxide integration is an important factor in brick manufacturing used as building materials.


Energies ◽  
2021 ◽  
Vol 14 (12) ◽  
pp. 3411
Author(s):  
Clara Fernando-Foncillas ◽  
Maria M. Estevez ◽  
Hinrich Uellendahl ◽  
Cristiano Varrone

Wastewater and sewage sludge contain organic matter that can be valorized through conversion into energy and/or green chemicals. Moreover, resource recovery from these wastes has become the new focus of wastewater management, to develop more sustainable processes in a circular economy approach. The aim of this review was to analyze current sewage sludge management systems in Scandinavia with respect to resource recovery, in combination with other organic wastes. As anaerobic digestion (AD) was found to be the common sludge treatment approach in Scandinavia, different available organic municipal and industrial wastes were identified and compared, to evaluate the potential for expanding the resource recovery by anaerobic co-digestion. Additionally, a full-scale case study of co-digestion, as strategy for optimization of the anaerobic digestion treatment, was presented for each country, together with advanced biorefinery approaches to wastewater treatment and resource recovery.


1996 ◽  
Vol 34 (3-4) ◽  
pp. 507-515 ◽  
Author(s):  
Michael Anderson ◽  
R. Glynn Skerratt ◽  
Julian P. Thomas ◽  
Stephen D. Clay

Earlier work at Staffordshire University revealed encouraging results when sewage sludge ash from a fluidised bed incinerator was added to a series of common commercial brickclays used in the United Kingdom. The results of this work led a United Kingdom brick manufacturer to the identification of this material as a possible replacement for the sand addition to the bricks produced at one of their factories. As a result, an experimental programme was formulated at Staffordshire University's Ceramic Technology Laboratory which used the factory's current mix-design as a control standard against a mix-design in which the sand component was replaced weight-for-weight with sewage sludge ash. Comparative bodies were fabricated and both laboratory and factory firings undertaken. Physical testing results have revealed that the experimental mix-design containing the sewage sludge ash contributes positively to the ceramic properties of the control product in both the unfired and fired condition. Moreover, the fired colour of this experimental product has also been found to be indistinguishable from the control.


2018 ◽  
Vol 18 (46) ◽  
pp. 733-746 ◽  
Author(s):  
Dorota Miłek ◽  
Jolanta Latosińska ◽  
Zbigniew Dyk

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