Stabilization of Arsenic- and Barium-Rich Glass Manufacturing Waste

Fuessle, Robert W.; Taylor, Max A.

doi:10.1061/(asce)0733-9372(2000)126:3(272)

Cited by 16 publications

(8 citation statements)

References 9 publications

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“…Samples with three different curing times were prepared in this study: 1 day, 2 months, and 6 months. Based on previous research [], most significant changes in S/S behavior are evident within six months. The order of sample preparation was random to eliminate bias.…”

Section: Experimental Design Methods and Materialsmentioning

confidence: 99%

“…Research in S/S has been active with world‐wide contributions to further understanding of S/S including: microstructural changes due to the presence of contaminants in a binder [], and physiochemical mechanisms of stabilizing organic [] and inorganic contaminants []. Effects of various additives have also been investigated: fly ash [], silica fume [], sulfates [], sulfides [], accelerators [], magnesium oxide (MgO) [], phosphates [], activated carbon [], and oxidizing or reducing agents []. Various leaching procedures have been investigated including ones that use granulated or monolithic stabilized wastes, various types of leachants, and methods of exposure [].…”

Section: Introductionmentioning

confidence: 99%

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Magnesium deterioration and lead stabilization/solidification using the toxicity characteristic leaching procedure

Nicklaus

Caffaro

Fuessle

et al. 2013

Env Prog and Sustain Energy

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Recent research in cement has investigated the mechanisms of magnesium corrosion; magnesium reacting with calcium silicate hydrate (CSH) and destroying its durability. Relatively high levels of magnesium may be found in certain cements, or it may penetrate cements from seawater or soils. Magnesium, a common industrial waste component, may also contribute to the deterioration of cement‐based stabilization/solidification (S/S). This article reports results showing how various amounts of magnesium may impact lead S/S treatment after short‐ and long‐term curing. In general, lead S/S was more effective for samples with comparable mass amounts of lead and magnesium. For samples with incomparable amounts of lead and magnesium, lead leaching increased with sample curing age. Fly ash additions to cement‐based stabilized/solidified treatment decreased lead leaching in the presence of magnesium. For all project samples, the addition of fly ash increased the number of samples below regulatory limits by a factor of 1.6. © 2013 American Institute of Chemical Engineers Environ Prog, 33: 437–443, 2014

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Section: Experimental Design Methods and Materialsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Magnesium deterioration and lead stabilization/solidification using the toxicity characteristic leaching procedure

Nicklaus

Caffaro

Fuessle

et al. 2013

Env Prog and Sustain Energy

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“…The efficiency of arsenic immobilization can also be improved with iron salt (Voigt et al 1996;Miller et al 2000;Taylor 2004a, 2004b;Jing et al 2003). Fuessle and Taylor (2000) suggested that Fe(II) is generally preferable for arsenic S-S because it is effective over a wide range of mixing ratios and over the long term. The use of Fe(III) is not recommended for arsenate S-S since fresh cement mix adsorbs ferric ion and does not allow adequate S-S until after a long cure time.…”

Section: Additive Referencementioning

confidence: 99%

“…Since it is well known that As(V) can be immobilized more easily than As(III) with cement, many researchers have attempted the oxidation of As(III) to As(V) using H 2 O 2 before S-S treatment for better performance (Dutré et al 1999;Palfy et al 1999;Vandecasteele et al 2002;Fuessle and Taylor 2000). The oxidation reaction in aqueous solution can be written as [14] HAsO Oxidation reactions with H 2 O 2 are often slow in acidic solutions but fast in basic solutions.…”

Section: Additive Referencementioning

confidence: 99%

Solidification–stabilization of organic and inorganic contaminants using portland cement: a literature review

Paria¹,

2006

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The treatment of hazardous wastes using cement-based solidification–stabilization (S–S) is of increasing importance as an option for remediating contaminated sites. Indeed, among the various treatment techniques, S–S is one of the most widely used methods for treating inorganic wastes. To enhance the application of S–S and to further develop this technology for site remediation, particularly for organic contaminants, it is important to have a better understanding of the mechanisms involved in the process. The primary objective of this review is to survey the current knowledge in this subject, focusing on (i) cement chemistry, (ii) the effects of inorganic (heavy metals) and organic compounds on cement hydration, and (iii) the mechanisms of immobilization of different organic and inorganic compounds. For heavy metals, cement-based S–S technology has been shown to be effective in immobilizing the contaminants, even without any additives. In applying cement-based S–S for treating organic contaminants, the use of adsorbents such as organophilic clay and activated carbon, either as a pretreatment or as additives in the cement mix, can improve contaminant immobilization in the solidified–stabilized wastes. The concept of degradative solidification–stabilization, which combines chemical degradation with conventional solidification–stabilization, seems promising, although further study is required to assess its technical and economic feasibility.Key words: cement, contaminated soil, immobilization, organics, precipitation, adsorption.

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“…The only sample in the study showing reasonable leaching performance was that using Portland cement alone, at a dosage of 1.0 part soil in 0.44 part cement. While the research to date indicates that the use of iron, lime and cement can be beneficial in the solidification/stabilization of arsenic, it is difficult to differentiate between the results obtained by the numerous researchers and draws any firm conclusions on which S/S processes are the most efficient and effective [72][73][74][75][76][77]. Despite the extensive efforts by several researchers, there is very less data reported in the literature especially about the quantitative effects of addition of different metal ions on initial and final setting times of ordinary Portland cement, therefore, efforts have been made to fill void in this data.…”

Section: Fixation Of Heavy Metals In Portland Cementmentioning

confidence: 99%

Environmental Pollution Remediation through Solidification/Fixation of Heavy Metal Ions in Portland Cement

Goyal¹,

Chauhan²

2015

J Environ Anal Toxicol

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Stabilization of Arsenic- and Barium-Rich Glass Manufacturing Waste

Cited by 16 publications

References 9 publications

Magnesium deterioration and lead stabilization/solidification using the toxicity characteristic leaching procedure

Magnesium deterioration and lead stabilization/solidification using the toxicity characteristic leaching procedure

Solidification–stabilization of organic and inorganic contaminants using portland cement: a literature review

Environmental Pollution Remediation through Solidification/Fixation of Heavy Metal Ions in Portland Cement

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