Determination of Phosphate Phases in Sewage Sludge Ash-Based Fertilizers by Raman Microspectroscopy

2013 ◽  
Vol 67 (9) ◽  
pp. 1101-1105 ◽  
Author(s):  
Christian Vogel ◽  
Christian Adam ◽  
Don McNaughton
Keyword(s):  
Sewage Sludge ◽  
Raman Microspectroscopy ◽  
Sewage Sludge Ash ◽  
Sludge Ash

Study of the Potential of Adhesion to the Substrate of Masonry and Tensile in the Flexion in Mortars of Coating with Gray of the Sewage Sludge

2020 ◽  
Vol 1012 ◽  
pp. 256-261
Author(s):  
João Victor da Cunha Oliveira ◽  
Leila Soares Viegas Barreto Chagas ◽  
Frankslale Fabian Diniz de Andrade Meira ◽  
Arnaldo Manoel Pereira Carneiro ◽  
Antônio Acácio de Melo Neto
Keyword(s):  
Tensile Strength ◽  
Sewage Sludge ◽  
Calcination Temperature ◽  
Partial Replacement ◽  
Sewage Sludge Ash ◽  
Flexural Tensile Strength ◽  
Hydraulic Binder ◽  
Strength Tests ◽  
Sludge Ash

This work evaluates mortars using sewage sludge calcined at temperatures of 600°C and 700°C as a hydraulic binder replacing the cement. The percentages incorporated by mass to replace the Portland cement were 10%, 20% and 30%, using the 1:3:0,60 (cement: sand: factor a/c) trace. Sludge ash was characterized and tensile strength at flexion as well as tensile strength (pullout test) were evaluated. As a way of performing a comparison with conventional mortars, the same tests were carried out using reference mortar. The results of the flexural tensile strength tests indicated that results were higher than the reference traces of the mortars with the calcined sludge at a temperature of 700°C, a factor related to the increase of the calcination temperature and the incorporated percentage. With respect to the tests on the determination of tensile strength, it was observed that the specimens submitted to the test suffered rupture in the mortar, and that the calcination temperature of the sewage sludge was not influenced. The results obtained with the mortars using sewage sludge ash with partial replacement of the cement are shown within the normative standards and approximate to the results obtained with the tests executed with the reference mortar.

Effect of NaCl and MgCl2 on the hydration of lime-pozzolan blend by recycling sewage sludge ash

2021 ◽  
pp. 127759
Author(s):  
Yifan Zhou ◽  
Jianxin Lu ◽  
Jiangshan Li ◽  
Chris Cheeseman ◽  
Chi Sun Poon
Keyword(s):  
Sewage Sludge ◽  
Sewage Sludge Ash ◽  
Sludge Ash

scholarly journals Applying Mixture of Municipal Incinerator Bottom Ash and Sewage Sludge Ash for Ceramic Tile Manufacturing

Materials ◽  
2021 ◽  
Vol 14 (14) ◽  
pp. 3863
Author(s):  
Deng-Fong Lin ◽  
Wei-Jhu Wang ◽  
Chia-Wen Chen ◽  
Kuo-Liang Lin
Keyword(s):  
Wear Resistance ◽  
Sewage Sludge ◽  
Water Absorption ◽  
Ceramic Tile ◽  
Bending Strength ◽  
Bottom Ash ◽  
Waste Materials ◽  
Sewage Sludge Ash ◽  
Kiln Temperature ◽  
Sludge Ash

Municipal incinerator bottom ash (MIBA) and sewage sludge ash (SSA) are secondary wastes produced from municipal incinerators. Landfills, disposal at sea, and agricultural use have been the major outlets for these secondary wastes. As global emphasis on sustainability arises, many have called for an increasing reuse of waste materials as valuable resources. In this study, MIBA and SSA were mixed with clay for ceramic tile manufacturing in this study. Raw materials firstly went through TCLP (Toxicity Characteristic Leaching Procedure) to ensure their feasibility for reuse. From scanning electron microscopy (SEM), clay’s smooth surface was contrasted with the porous surface of MIBA and SSA, which led to a higher water requirement for the mixing. Specimens with five MIBA mix percentages of 0%, 5%, 10%, 15%, and 20% (wt) and three SSA mix percentages of 0%, 10%, and 20% (wt) were made to compare how the two waste materials affected the quality of the final product and to what extent. Shrinkage tests showed that MIBA and SSA contributed oppositely to tile shrinkage, as more MIBA reduced tile shrinkage, while more SSA encouraged tile shrinkage. However, as the kiln temperature reached 1150 °C, the SiO2-rich SSA adversely reduced the shrinkage due to the glass phase that formed to expand the tile instead. Both MIBA and SSA increased water tile absorption and reduced its bending strength and wear resistance. Increasing the kiln temperature could effectively improve the water absorption, bending strength, and wear resistance of high MIBA and SSA mixes, as SEM showed a more compact structure at higher temperatures. However, when the temperature reached 1100 °C, more pores appeared and seemingly exhausted the benefit brought by the higher temperature. Complex interactions between kiln temperature and MIBA/SSA mix percentage bring unpredictable performance of tile shrinkage, bending strength, and water absorption, which makes it very challenging to create a sample meeting all the specification requirements. We conclude that a mix with up to 20% of SSA and 5% of MIBA could result in quality tiles meeting the requirements for interior or exterior flooring applications when the kiln temperature is carefully controlled.

scholarly journals Characterization of sewage sludge ash and its effect on moisture physics of mortar

2019 ◽  
Vol 21 ◽  
pp. 396-403 ◽  
Author(s):  
Barbora Krejcirikova ◽  
Lisbeth M. Ottosen ◽  
Gunvor M. Kirkelund ◽  
Carsten Rode ◽  
Ruut Peuhkuri
Keyword(s):  
Sewage Sludge ◽  
Sewage Sludge Ash ◽  
Sludge Ash

Case study involving using fluidised bed incinerator sludge ash as a partial clay substitute in brick manufacture

1996 ◽  
Vol 34 (3-4) ◽  
pp. 507-515 ◽  
Author(s):  
Michael Anderson ◽  
R. Glynn Skerratt ◽  
Julian P. Thomas ◽  
Stephen D. Clay
Keyword(s):  
United Kingdom ◽  
Sewage Sludge ◽  
Ceramic Technology ◽  
Mix Design ◽  
Fluidised Bed ◽  
Sewage Sludge Ash ◽  
The United Kingdom ◽  
Physical Testing ◽  
Sludge Ash

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.

scholarly journals Effect of sewage sludge ash filler on mode I and mode II interlaminar fracture toughness of S-glass/epoxy composites

2018 ◽  
Vol 1 (2) ◽  
Author(s):  
Mohamad Alsaadi 1,2 ◽  
Ahmet Erkliğ 2
Keyword(s):  
Fracture Toughness ◽  
Sewage Sludge ◽  
Epoxy Composites ◽  
Mode I ◽  
Mode Ii ◽  
Interlaminar Fracture Toughness ◽  
Sewage Sludge Ash ◽  
Interlaminar Fracture ◽  
Glass Fiber Reinforced ◽  
Sludge Ash

In this study, the influence of sewage sludge ash (SSA) waste particle contents on the mechanical properties and interlaminar fracture toughness for mode I and mode II delamination of S-glass fiber reinforced epoxy composites were investigated. Composite laminate specimens for tensile, flexural double-cantilever beam (DCB) and end-notched flexure (ENF) tests were prepared and tested according to ASTM standards with 5, 10, 15 and 20 wt% SSA filled S-glass/epoxy composites. Properties improvement reasons was explained based on optical and scanning electron microscopy. The highest improvement in tensile and flexural strength was obtained with 10 wt% content of SSA. The highest mode I and mode II interlaminar fracture toughness’s were obtained with 15 wt% content of SSA. The mode I and mode II interlaminar fracture toughness’s improved by 33 and 63.6%, respectively, compared to the composite without SSA.

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