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Evaluation of fly-ash additive for removal of dissolved organic matter during soil aquifer treatment of wastewater treatment plant Peffluent by Liangliang Wei; Kun Wang; Qingliang Zhao; Shuang Xue; Ting Jia; Peiyuan You is a Engineering article available to read on EtoBox.

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## Abstract **BACKGROUND:** Fly‐ash (FA) additive was evaluated for enhanced removal of organic matter during soil aquifer treatment (SAT) of a wastewater treatment plant (WWTP) effluent in five 0.50 m length columns (diameter 0.1 m) in parallel. **RESULTS:** The characteristic behavior of dissolved organic matter (DOM) was examined for the stratum matrix configurations of both natural soil and a mixture of soil and FA. Incubation and fractionation experiments indicated that FA additive within the SAT columns would enhance the bulk adsorption of hydrophobic fractions, but decrease the biodegradation of the hydrophilic fraction simultaneously. The configuration design of an upper 0.25 m soil layer and a mixture of FA and soil underneath could make use of the functions of both FA adsorption and biodegradation within soil, which could lead to a further fractional removal of dissolved organic carbon (DOC) and trihalomethane formation potential (THMFP). Moreover, FA additive in the SAT columns could result in a significant decrease of tryptophan‐like aromatic proteins and fulvic‐like components (CC and CO related), while the setting of the top 25 cm soil layer would lead to a further

Who reads Evaluation of fly-ash additive for removal of dissolved organic matter during soil aquifer treatment of wastewater treatment plant Peffluent?

Author

Liangliang Wei; Kun Wang; Qingliang Zhao; Shuang Xue; Ting Jia; Peiyuan You

Publisher

Wiley (John Wiley & Sons); John Wiley & Sons Inc.; Wiley (ISSN 0268-2575)

Published

2010

Language

EN

Field

Engineering (Physical Sciences)