2015
DOI: 10.1007/s11356-015-5842-3
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Induced metal redistribution and bioavailability enhancement in contaminated river sediment during in situ biogeochemical remediation

Abstract: In situ sediment remediation using Ca(NO3)2 or CaO2 for odor mitigation and acid volatile sulfide (AVS) and organic pollutant (such as TPH and PAHs) removal was reported in many studies and fieldwork. Yet, the associated effects on metal mobilization and potential distortion in bioavailability were not well documented. In this study, contaminated river sediment was treated by Ca(NO3)2 and CaO2 in bench studies. Through the investigation of AVS removal, organic matter removal, the changes in sediment oxidation-… Show more

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Cited by 9 publications
(1 citation statement)
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“…The anaerobic sediment in creeks releasing high concentrations of sulfur and ammonia is predominantly responsible for the black-odorous water (He et al, 2017;Yin, Yang, & Kong, 2019). Various technologies have been applied to the solution of the odor problem in creek (Liu, Zhang, Mao, & Yan, 2016). Among these technologies, the injection of calcium nitrate has been identified as an in situ treatment approach to rapidly improve the water quality of creeks since it was introduced by Ripl in 1976 (Ripl, 1976;Wang, Wang, & Zhang, 2018).…”
Section: Introductionmentioning
confidence: 99%
“…The anaerobic sediment in creeks releasing high concentrations of sulfur and ammonia is predominantly responsible for the black-odorous water (He et al, 2017;Yin, Yang, & Kong, 2019). Various technologies have been applied to the solution of the odor problem in creek (Liu, Zhang, Mao, & Yan, 2016). Among these technologies, the injection of calcium nitrate has been identified as an in situ treatment approach to rapidly improve the water quality of creeks since it was introduced by Ripl in 1976 (Ripl, 1976;Wang, Wang, & Zhang, 2018).…”
Section: Introductionmentioning
confidence: 99%