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This digital document is an article from Siempre!, published by Edicional Siempre on May 11, 2000. The length of the article is 4974 words. The page length shown above is based on a typical 300-word page. The article is delivered in HTML format and is available in your Amazon.com Digital Locker immediately after purchase. You can view it with any web browser.

Citation Details
Title: Juan Gelman: "La poesía es una palabra calcinada".(poeta)(TT: Juan Gelman: "Poetry is nothing but incinerated words".)(TA: poet)(Entrevista)
Author: Dionicio Morales
Publication:Siempre! (Refereed)
Date: May 11, 2000
Publisher: Edicional Siempre
Volume: 46 Issue: 2447 Page: 68

Article Type: Entrevista

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This digital document is an article from Journal of the Air & Waste Management Association, published by Air and Waste Management Association on February 1, 2005. The length of the article is 6760 words. The page length shown above is based on a typical 300-word page. The article is delivered in HTML format and is available in your Amazon.com Digital Locker immediately after purchase. You can view it with any web browser.

Citation Details
Title: Glazed tiles manufactured from incinerated sewage sludge ash and clay.(TECHNICAL PAPER)
Author: Deng-Fong Lin
Publication:Journal of the Air & Waste Management Association (Refereed)
Date: February 1, 2005
Publisher: Air and Waste Management Association
Volume: 55 Issue: 2 Page: 163(10)

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This digital document is a journal article from Waste Management, published by Elsevier in 2006. The article is delivered in HTML format and is available in your Amazon.com Media Library immediately after purchase. You can view it with any web browser.

Description:
In this study, sewage sludge ash (SSA), with similar characteristics to expansive clay, was used as the principal material and sewage sludge (SS) as the admixture to sinter lightweight aggregate and to study the influences of raw material composition on pelletising, sintering effect and aggregate properties. Results showed that both SS and SSA could be sintered to produce synthetic aggregates individually or mixed. Increasing the amount of SS would decrease the pelletising ratio. Under the consideration of energy saving, the mixture of SSA was better for sintering normal weight aggregate. On the contrary, the mixture that added 20-30% of SS was more adequate to make lightweight aggregates. Adding SS would enhance the oxidation-reduction reaction and lower the bulk density and sintering temperature of aggregates to save energy. Sintering temperature affected the properties of sewage sludge ash lightweight aggregate (SSALA) more than retention period did. Prolonging the retention period could improve bloating effect. .
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This digital document is a journal article from Chemosphere, published by Elsevier in . The article is delivered in HTML format and is available in your Amazon.com Media Library immediately after purchase. You can view it with any web browser.

Description:
Leaching of ash and dried sewage sludge were investigated and compared with the leaching results of sludge residue from supercritical water oxidation (SCWO). This article focuses on how the composition of ash and sludge residues influences the extraction of phosphate and heavy metals and if different treatment temperatures of the sludge effect the leachability. Results showed that acid leaching gave a higher release of phosphate than alkaline leaching for all ash and sludge residue samples. Also, alkaline leaching dissolved phosphate with a lower metal contamination than acid leaching. Furthermore, it was found that iron had a low release at both alkaline and acid leaching from ash and from SCWO residue. The difference in composition of ash and sludge residue samples had no significant influence on release of phosphate at high concentrations of acid. Phosphate release from ash, dried sludge at 300^oC and SCWO residue showed similar results at 1M acid leaching. However, it seems to be easier to release phosphate from the SCWO residue than from the ash at low acid concentrations. SCWO residue showed higher release than the other ashes at 0.5M HCl. Results for alkaline leaching showed higher release from ash at 1M NaOH than from SCWO residue or from dried sludge at 300^oC. The leaching of phosphate from dried sludge seems to be temperature dependent, as the dried sludge treated at higher temperature showed less release of phosphate. It was found that the pre-treatment of the ash may be important for better release of phosphate. .
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This digital document is a journal article from Journal of Hazardous Materials, published by Elsevier in 2006. The article is delivered in HTML format and is available in your Amazon.com Media Library immediately after purchase. You can view it with any web browser.

Description:
This study investigates the characteristics of lightweight aggregates sintered from sewage sludge ash by modifying the proportion of the main components (SiO"2-Al"2O"3-flux). The ash of incinerated sludge from a municipal sewage treatment plant (STP) was used as the tested material and sintering temperature ranged from 1050 to 1100^oC within a time span of 10-30min. The sludge ash appeared to have a high proportion of SiO"2 (44.89%), Al"2O"3 (11.62%) and Fe"2O"3 (6.81%) resembling the dilatable shale. When the sintering temperature was raised to above 1060^oC, the blowing phenomenon appeared. The aggregates become lighter in weight by prolonging the sintering time and raising the temperature. Cullet powder (amorphous SiO"2), Al"2O"3, and fly ash were added to sludge ash to analyse the characteristic changes of the aggregates. The results showed that amorphous SiO"2 lowered the melting point and increased foaming; Al"2O"3 raised the compression resistance; fly ash lowered the sintering temperature required. However, the composition of fly ash can vary dramatically, resulting in a less predictable characteristic of aggregates. .
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