Combination of sediment washing and bioactivators as a potential strategy for dredged marine sediment recovery

Doni, Serena; Macci, Cristina; Martinelli, Cristina; Iannelli, Renato; Brignoli, Pierlorenzo; Lampis, Silvia; Andreolli, Marco; Vallini, Giovanni; Masciandaro, Grazia

doi:10.1016/j.ecoleng.2018.10.009

Cited by 23 publications

(13 citation statements)

References 74 publications

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“…A variety of technologies, including physical/mechanical [11], chemical [12,13], and biological technologies (phytoremediation and microbial remediation) [14,15], have been applied in the remediation of dredged marine sediments contaminated by metals. Among the various chemical remediation technologies, immobilization is considered a promising and alternative option due to its significant effect, low cost, and environmental friendliness [16].…”

Section: Introductionmentioning

confidence: 99%

An Ex-Situ Immobilization Experiment with Zn, Pb, and Cu in Dredged Marine Sediments from Bohai Bay, China

Zhang

Xiao

Liu

2019

JMSE

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The remediation of dredged marine sediments contaminated by metals has drawn increasing attention globally. Immobilization was regarded as a promising method for reducing adverse impacts on marine ecosystems. In this study, kaolinite and limestone were used as amendments to immobilize Zn, Pb, and Cu in dredged marine sediments, which were collected from the coastal zone adjacent to Tianjin Port in Bohai Bay. The sequential extraction procedure was applied to identify the mobility of metals and, further, to evaluate the immobilization effect of the amendments. The physical–chemical properties of the sediments, such as the pH, electrical conductivity (EC), salinity, and total organic carbon (TOC), were also measured to better understand their influence on the three metals’ mobility. The results of the sequential extraction procedure indicated that the mobile fractions of the metals were converted into relatively stable fractions because of the two amendments. In addition, the EC, salinity, and TOC decreased moderately, while no obvious variations in the pH of the sediments were observed with the addition of kaolinite and limestone. It was confirmed that both kaolinite and limestone can effectively reduce the mobility and bioavailability of metals, particularly Zn, and limestone generally has a better immobilization effect, compared with kaolinite.

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Section: Introductionmentioning

confidence: 99%

An Ex-Situ Immobilization Experiment with Zn, Pb, and Cu in Dredged Marine Sediments from Bohai Bay, China

Zhang

Xiao

Liu

2019

JMSE

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“…Despite increasing popularity of various next generation sequencing techniques, the DGGE method remains as a fast‐performing fingerprinting method to compare the diversity of microbial communities from natural environments (e.g., biofilm, soil, sediment; Doni et al, ; Khanongnuch, Di Capua, Lakaniemi, Rene, & Lens, ; Morales‐Londoño et al, ). During the present study, DGGE was performed using an Ingeny PhorU (Ingeny International, Goes, Netherlands) instrument.…”

Section: Methodsmentioning

confidence: 99%

Comparison of planktonic and reed biofilm bacteria in different riverine water bodies of river Danube

Borsodi

Anda

Krett

et al. 2020

River Research & Apps

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As the submerged shoot parts of common reed (Phragmites australis) can provide large surfaces for biofilm‐forming bacteria, extensive reed stands can effectively contribute to the self‐purification in the littoral zones of freshwaters. However, bacterial biofilm developed on reed surfaces have been studied only in still waters. In the present study, comparative examinations were performed on the planktonic and reed biofilm bacterial communities from two different riverine water bodies. Water and reed biofilm samples were taken at the beginning and end of the vegetation period from (a) a regulated side arm and (b) a separated oxbow of River Danube. Besides measuring physical and chemical environmental variables, planktonic bacterial cell numbers were detected by 4′,6‐diamidino‐2‐phenylindole staining method, and the bacterial communities were compared by denaturing gradient gel electrophoresis. Our results demonstrated that the structure and composition of bacterial communities correlated with different environmental variables and were different regarding both the habitats (planktonic vs. reed biofilm) and the types of riverine water bodies. The seasonal differences in the bacterial community structures were smaller in the river side arm than in the separated oxbow. In the water column, representatives of widespread and typical freshwater planktonic bacteria (“Candidatus Planktophila,” Limnohabitans, and Polynucleobacter), whereas, in the reed biofilm samples, phototrophic and plant associated bacteria were identified.

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“…The bioactivator effectiveness largely depends on toxicants contained in household wastewater, and primarily synthetic detergents that are not digested by microorganisms which are harmful for them, and besides, synthetic detergents are very difficult to be removed from water [10,11].…”

Section: Introductionmentioning

confidence: 99%

Aeration for increasing the bioactivators efficiency in treating household wastewater containing synthetic detergents

Selivanov¹

2020

IJETER

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The paper presents the research results of synthetic detergents influence on various bioactivators efficiency in household wastewater treatment. The research has been carried out using model solutions simulating domestic wastewater, where organic pollutants were represented by the solutions of sucrose, starch and milk powder, and synthetic detergent was used as toxicant-pollutant. The bioactivators effectiveness in the presence of synthetic detergent in model solutions treatment was assessed according to the changes of chemical oxygen consumption during static experimental studies. The study shows that bioactivators effectiveness in the treatment of household waste water containing synthetic detergents increases from 7 to 31% when aeration is applied. The recommendations are given for the considered bioactivators application in household waste water treatment under various operating conditions.

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Combination of sediment washing and bioactivators as a potential strategy for dredged marine sediment recovery

Cited by 23 publications

References 74 publications

An Ex-Situ Immobilization Experiment with Zn, Pb, and Cu in Dredged Marine Sediments from Bohai Bay, China

An Ex-Situ Immobilization Experiment with Zn, Pb, and Cu in Dredged Marine Sediments from Bohai Bay, China

Comparison of planktonic and reed biofilm bacteria in different riverine water bodies of river Danube

Aeration for increasing the bioactivators efficiency in treating household wastewater containing synthetic detergents

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