Aluminum-Based Water Treatment Residue Reuse for Phosphorus Removal

Aluminum-Based Water Treatment Residue Reuse for Phosphorus Removal

Aluminum-based water treatment residue (Al-WTR) generated during the drinking water treatment process is a readily available recycled material with high phosphorus (P) adsorption capacity. The P adsorption capacity of Al-WTR generated from Singapore’s water treatment plant was evaluated with reference to particle size range, adsorption pH and temperature. Column tests, with WTR amendments in sa...

A method for determining the phosphorus sorption capacity and amorphous aluminum of aluminum-based drinking water treatment residuals.

A high amorphous aluminum or iron oxide content in drinking water treatment residuals (WTRs) can result in a high phosphorus (P) sorption capacity. Therefore, WTR may be used beneficially to adsorb P and reduce P loss to surface or ground water. The strong relationship between acid ammonium oxalate-extractable aluminum (Al(ox)) and Langmuir phosphorus adsorption maximum (P(max)) in WTR could pr...

Aluminum-based drinking-water treatment residuals: a novel sorbent for perchlorate removal.

Perchlorate contamination of aquifers and drinking-water supplies has led to stringent regulations in several states to reduce perchlorate concentrations in water at acceptable levels for human consumption. Several perchlorate treatment technologies exist, but there is significant cost associated with their use, and the majority of them are unable to degrade perchlorate to innocuous chloride. W...

Characterization of aluminium-based water treatment residual for potential phosphorus removal in engineered wetlands.

Aluminium-based water treatment residual (Al-WTR) is the most widely generated residual from water treatment facilities worldwide. It is regarded as a by-product of no reuse potential and landfilled. This study assessed Al-WTR as potential phosphate-removing substrate in engineered wetlands. Results indicate specific surface area ranged from 28.0 m(2) g(-1) to 41.4 m(2) g(-1). X-ray Diffraction...

WATER AND WASTEWATER TREATMENT TECHNOLOGIES - Biological Phosphorus Removal Processes for Wastewater Treatment - A. Sathasivan ©Encyclopedia of Life Support Systems(EOLSS) BIOLOGICAL PHOSPHORUS REMOVAL PROCESSES FOR WASTEWATER TREATMENT