The effect of bentonite/cement mortar for the stabilization/solidification of sewage sludge containing heavy metals

Katsioti, M.; Katsiotis, N.S.; Rouni, G.; Bakirtzis, D.; Loizidou, Maria

doi:10.1016/j.cemconcomp.2008.03.001

Cited by 91 publications

(32 citation statements)

References 10 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Fig. 2 shows that the loss of water in the sample water-cement-Pb is practically the same when compared to sample constituted of water-cement (0.08 versus 0.04%), being agreement with data reported in the literature [33][34][35]. Such results suggest that the presence of Pb did not afford retention of water within the matrix.…”

Section: Resultssupporting

confidence: 93%

“…According to the diffractgrams, the detected signals can be assigned to calcite (CaCO 3 ), calcium silicates hydrates (3CaO·2SiO 2 ·xH 2 O, x ∼ = 3), ettringite (6CaO·Al 2 O 3 ·3SO 3 ·32H 2 O), portlandite (Ca(OH 2 )) and SiO 2 , those result is according with the literature [30][31][32][33]. In samples S8, S7 and S5, it is possible to observe the presence of plattnerite (PbO 2 ).…”

Section: Resultsmentioning

confidence: 96%

See 1 more Smart Citation

Stabilization and solidification of Pb in cement matrices

Gollmann

Silva

Masuero

et al. 2010

Journal of Hazardous Materials

View full text Add to dashboard Cite

Section: Resultssupporting

confidence: 93%

Section: Resultsmentioning

confidence: 96%

Stabilization and solidification of Pb in cement matrices

Gollmann

Silva

Masuero

et al. 2010

Journal of Hazardous Materials

View full text Add to dashboard Cite

“…An addition of raw or dry sewage sludge to cement with mass ratio of 0.30-0.39 (mass of sludge dry solids/mass of the binder) is considered as an economic way to utilize the environmentally harmful sewage sludge that contains a lot of microbial pathogens, heavy metals, and persistent organics ). There were made a lot of research showing that raw or dry sewage sludge of MWWTPs can be considered as a filler material for concrete and bituminous mixes, which could be applied for the landfill construction (Aziz and Koe 1990;Cheilas et al 2007;Fytili and Zabaniotou 2008;Katsioti et al 2008;Lin et al 2012;Rodríguez et al 2010;Song et al 2013;Valls and Vàzquez 2001;Valls et al 2004;Yagüe et al 2005;Yang et al 2013).…”

Section: Biotechnological Admixturesmentioning

confidence: 99%

Construction Biotechnology: a new area of biotechnological research and applications

Stabnikov

Ivanov

Chu

2015

World J Microbiol Biotechnol

View full text Add to dashboard Cite

A new scientific and engineering discipline, Construction Biotechnology, is developing exponentially during the last decade. The major directions of this discipline are selection of microorganisms and development of the microbially-mediated construction processes and biotechnologies for the production of construction biomaterials. The products of construction biotechnologies are low cost, sustainable, and environmentally friendly microbial biocements and biogrouts for the construction ground improvement. The microbial polysaccharides are used as admixtures for cement. Microbially produced biodegradable bioplastics can be used for the temporarily constructions. The bioagents that are used in construction biotechnologies are either pure or enrichment cultures of microorganisms or activated indigenous microorganisms of soil. The applications of microorganisms in the construction processes are bioaggregation, biocementation, bioclogging, and biodesaturation of soil. The biotechnologically produced construction materials and the microbially-mediated construction technologies have a lot of advantages in comparison with the conventional construction materials and processes. Proper practical implementations of construction biotechnologies could give significant economic and environmental benefits.

show abstract

“…Increase in clay proportion in the S/S mixtures proved to be positive in terms of compressive strength and all obtained mixtures of clay and lime can be used as a base for roads and bulk materials as they all exhibit compressive strength requirement of 0.35 MPa. Mixture K30L10P60 showed the highest value of this parameter probably due to presence of the ettringite which plays an important role in the hardening and compressive strength development of these systems [44,47].…”

Section: Characterization Of S/s Mixturesmentioning

confidence: 99%

Treatment of pyrite cinder sludge after usage in dye degradation: Feasibility study

Kerkez¹,

Bečelić‐Tomin²,

Dalmacija³

et al. 2016

Zas Mat

View full text Add to dashboard Cite

Over the last couple of years greener concept in hazardous waste management is gaining increasing relevance. This term refers to the processes and activities that have little or negligible impact on the environment. The aim of this study is to systematically quantify the physical and chemical properties of the solidified/stabilized (S/S) sludge generated in dye effluent treatment, when pyrite cinder is used as catalytic iron source in the modified heterogeneous Fenton process. S/S treatment was performed by using two clay materials (kaolinite and bentonite) and lime in order to immobilize Cu, Pb and Zn present in the sludge. Microwave assisted sequential extraction procedure was employed to assess potential metal mobility and risk to the environment. In order to determine the long-term behaviour of the S/S mixtures, the semi-dynamic ANS 16.1 leaching test was performed. S/S effectiveness was evaluated by measuring the cumulative fractions of leached metals, effective diffusion coefficients -De and leachability indices -LX. Scanning electron microscope (SEM) and X-ray diffraction (XRD) were implemented to elucidate the mechanisms responsible for immobilization of the

show abstract

The effect of bentonite/cement mortar for the stabilization/solidification of sewage sludge containing heavy metals

Cited by 91 publications

References 10 publications

Stabilization and solidification of Pb in cement matrices

Stabilization and solidification of Pb in cement matrices

Construction Biotechnology: a new area of biotechnological research and applications

Treatment of pyrite cinder sludge after usage in dye degradation: Feasibility study

Contact Info

Product

Resources

About