Acid Neutralizing Capacity of Municipal Waste Incinerator Bottom Ash

Johnson, C. Annette; Brandenberger, Sandro; Baccini, Peter

doi:10.1021/es00001a018

Cited by 129 publications

(75 citation statements)

References 4 publications

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“…ANC and Cu leaching as a function of pH were determined by the batch titration procedure as suggested by Johnson et al [18]. Each 2.5 g of MSWI bottom ash sample was placed in 25 previously acid washed polyethylene bottles, and thoroughly rinsed with deionized water.…”

Section: Batch Titration Proceduresmentioning

confidence: 99%

“…Besides the relatively well-known enhancing effect of DOC, other geochemical characteristics of MSWI bottom ash might also be important. For example, the acidneutralizing capacity (ANC) of MSWI bottom ash, which controls the leachate pH, might influence Cu leaching behavior [17,18]. Furthermore, the speciation of Cu in MSWI bottom ash, which reveals the specific chemical forms, binding state, and mobility of Cu in various environmental conditions, could affect the leaching of Cu.…”

Section: Introductionmentioning

confidence: 99%

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Investigation of Cu leaching from municipal solid waste incinerator bottom ash with a comprehensive approach

Yao

Wen-bing

Xia

et al. 2010

Front. Energy Power Eng. China

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Municipal solid waste incinerator (MSWI) bottom ash is often reused as a secondary construction material. This study used a comprehensive approach to characterize the leaching behavior of copper (Cu) from the MSWI bottom ash. The batch titration procedure was used to determine the acid neutralizing capacity and Cu leaching as a function of pH. The sequential extraction procedure (SEP) was adopted to analyze the speciation of Cu in the MSWI bottom ash. The metal speciation equilibrium model for surface and ground water (Visual MINTEQ) was used to evaluate the equilibrium of the leachates with the relative minerals, and to determine the speciation of the aqueous Cu in the leachates. Based on the multi-analysis of the results, Cu would be significantly released from the MSWI bottom ash when it is acidic. The Cu leaching pattern was not only affected by dissolved organic carbon, it was also limited by its speciation in the MSWI bottom ash. Furthermore, almost 100% of the aqueous Cu in the leachate was bound to organic matter in basic and neutral conditions, but mostly existed as Cu 2+ in an acidic condition. These findings provide an important insight into predicting the leaching behavior of Cu from the MSWI bottom ash, as well as its impact on the environment.

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Section: Batch Titration Proceduresmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Investigation of Cu leaching from municipal solid waste incinerator bottom ash with a comprehensive approach

Yao

Wen-bing

Xia

et al. 2010

Front. Energy Power Eng. China

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“…This indicates that milled and sintered IBA have very similar ANC behaviour except in the acid addition range between 0.4 and 1.4 meq/g where the milled ash gives higher leachate pH values. CaCO 3 is present in the milled IBA as a result of carbonation during ageing, and is reported to provide buffering capacity in the pH range between 5 and 6, due to the formation of Ca 2+ , HCO 3 − and OH − ions (Johnson, 1995;Kirby and Rimstidt, 1994;Meima and Comans, 1997). The sintered IBA pellets do not show this effect due to the decomposition of CaCO 3 to CaO and CO 2 that occurs during heating.…”

Section: Acid Neutralisation Capacity (Anc)mentioning

confidence: 99%

Properties of lightweight aggregate produced by rapid sintering of incinerator bottom ash

Cheeseman¹,

Makinde²,

Bethanis³

2005

Resources, Conservation and Recycling

207

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“…Table 1 shows the elemental composition of the bottom ash samples which was determined by acid digestion with nitric and hydrochloric acids (U.S. EPA, 1996). The resultant digestate was analyzed by inductively coupled argon plasma atomic emission spectrometry, ICAP-AES (model ICAP-575II, Nippon Jarrell-Ash) to determine the concentrations of Ca, Al, Fe and Si which were reported as the main components of bottom ash (Johnson et al, 1995). The relative abundance of each particle size fractions in the sample of bottom ash is shown in Fig.…”

Section: Materials and Methods Bottom Ash Samplementioning

confidence: 99%

Chemical Stabilization of Bottom Ash from Municipal Solid Waste Incineration and Prediction of DOC Leaching in Landfill Sites

Guimaraes

Okuda

Nishijima

et al. 2010

J. of Wat. & Envir. Tech.

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It is well known that it takes long time to stabilize landfill and meet the standard for leachate after landfilling is stopped. Moreover, the time required to meet the standard is not predicted. In this research, the rapid small-scale column test (RSSCT) was applied and was found to predict the dissolved organic carbon (DOC) leaching from municipal solid waste incineration bottom ash in a simulated landfill site. Acid washing with hydrochloric acid remarkably reduced the DOC leaching from bottom ash. According to the RSCCT, it was estimated that the acid washing would reduce the time for DOC stabilization of bottom ash by about 80% in a simulated landfill situation.

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Acid Neutralizing Capacity of Municipal Waste Incinerator Bottom Ash

Cited by 129 publications

References 4 publications

Investigation of Cu leaching from municipal solid waste incinerator bottom ash with a comprehensive approach

Investigation of Cu leaching from municipal solid waste incinerator bottom ash with a comprehensive approach

Properties of lightweight aggregate produced by rapid sintering of incinerator bottom ash

Chemical Stabilization of Bottom Ash from Municipal Solid Waste Incineration and Prediction of DOC Leaching in Landfill Sites

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