The fixation and leaching of cement stabilized arsenic

¹School of Life Sciences & Technology, Victoria University, Footscray Park Campus (F008), PO Box 14428, MCMC, Victoria 8001, Australia.

|June 5, 2003

Abstract:

The solidification/stabilization of sodium arsenite, sodium arsenate, arsenic trioxide and arsenic pentoxide at dosages of approximately 10% has been investigated using sequential batch leaching tests. The leaching of arsenic, which was found to be diffusion based, was clearly least effective for those formulations containing additional iron(II). Calcium was found to influence the leaching of cement immobilized arsenic: those formulations containing the greatest Ca:As mole ratios were generally the most successful. Analysis using both FTIR and SEM revealed substantial changes to the cement matrices of those formulations to which the ferrous sulfate had been added. Ettringite was identified in the cement+ferrous sulfate formulations.

Related Experiment Videos

The fixation and leaching of cement stabilized arsenic

Related Concept Videos

Multicentric Angiographic Assessment of the Branching Patterns and Anastomotic Network of the Genicular Arteries, with Implications for Genicular Artery Embolization.

Thiazolides promote G1 cell cycle arrest in colorectal cancer cells by targeting the mitochondrial respiratory chain.

Sentiment Analysis in Children with Neurodevelopmental Disorders in an Ingroup/Outgroup Setting.

A direct access to heterobimetallic complexes by roll-over cyclometallation.

Loss of DJ-1 impairs antioxidant response by altered glutamine and serine metabolism.

A LUHMES 3D dopaminergic neuronal model for neurotoxicity testing allowing long-term exposure and cellular resilience analysis.

The use of two amendments (peat and lime) to reduce metal mobility, salinity and toxicity in harbour bottom sediments.

Application-dependent effects of tea waste biochar on PFAS mobility and N2O and CH4 emissions in agricultural soil.

Two-tier framework for landslide risk assessment of construction solid waste landfills.

Balancing benefits and risks in food waste biochar: Pyrolysis severity effects on contaminant fate, nutrient leaching, and biological safety.

From waste to structure: predicting remaining mechanical properties of short-length waste (formwork) wood collected from construction sites: a non-destructive approach.

Sustainable management of tropical timber residues for greenhouse gas mitigation: enhanced biogas recovery via hydrothermal-alkaline pretreatment.

Successful modification of Aspergillus Niger with inorganic sorbent for biosorption of Cs-134 from aqueous solutions.

Evaluation of cytotoxicity, setting time, and mineralization potential of mineral trioxide aggregate with Nigella sativa aqueous extract: An in vitro study.

Synthesis of SiO2-Al2O3 Aerogel Powder via Low-Temperature Alkaline Fusion Activation of Potassium Feldspar.

Mass Spectrometry for Semiquantitative Analysis of Thermal Decomposition: A Methodological Case Study on the Pyrolysis of a (CH3)SiO1.5 Hybrid Gel.

A unified solvatochromic-computational-machine-learning approach for solvent property prediction based on iodine color response.

Toxic Anterior Segment Syndrome following XEN Gel Stent Implantation: A Rare Complication in Minimally Invasive Glaucoma Surgery - Case Report.

Related Experiment Videos

The fixation and leaching of cement stabilized arsenic

Abstract:

Related Concept Videos

Related Articles