Choi, Jae-Woo Kwon, Kyu-Sang Lee, Soonjae An, Byungryul Hong, Seok-Won Lee, Sang-Hyup 2024-01-20T10:32:19Z 2024-01-20T10:32:19Z 2021-09-05 2014-02 0049-6979 https://pubs.kist.re.kr/handle/201004/127153 The objective of this research was to evaluate a zeolite ball coated with sulfate (ZBCS) for the removal of phosphate in a batch, lab-scale column, and pilot-scale plant. Phosphate adsorption in the batch studies satisfactorily fitted to the Langmuir isotherm with a maximum adsorption capacity of 15.13 mg/g and the pseudo-first-order model with the amount of phosphate sorbed at equilibrium of 6.98 mg/g. The breakthrough data were satisfactorily described using the empirical model by Thomas. Phosphate adsorbed on the ZBCS was effectively desorbed using 10 % sulfuric acid and the surface-modified mineral was regenerated as an adsorbent for thrice adsorption and desorption cycles by maintaining the adsorption capacity at the value before regeneration. In addition, since the regeneration solution used for recycling of the ZBCS in the pilot plant is enriched with sulfate ion, the enriched solution could be used for resource recovery by various methods, such as mineral-based and chemical-based methods. Our research suggests a complete system for removal and recovery of phosphate from sewage and wastewater using a novel adsorbent based on minerals. English Kluwer Academic Publishers Pilot-Scale Test for a Phosphate Treatment Using Sulfate-Coated Zeolite at a Sewage Disposal Facility Article 10.1007/s11270-013-1835-3 1 Water, Air, & Soil Pollution, v.225, no.2 Water, Air, & Soil Pollution 225 2 N scie scopus 000331828400008 2-s2.0-84896770170 Environmental Sciences Meteorology & Atmospheric Sciences Water Resources Environmental Sciences & Ecology Meteorology & Atmospheric Sciences Water Resources Article PHOSPHORUS REMOVAL AQUEOUS-SOLUTION LOW-COST ADSORPTION WATER SORPTION ADSORBENT BATCH Zeolite Sewage Sulfate Phosphate Pilot plant