Phosphate removal from wastewater by using water treatment sludge

被引：0
作者：
Balkaya, Nilgun [1 ]
Erkan, Ercan [1 ]
机构：
[1] Istanbul Univ Cerrahpasa, Dept Environm Engn, TR-34320 Avcilar, Turkey
来源：
DESALINATION AND WATER TREATMENT | 2019年 / 172卷
关键词：
Adsorption; Isotherm; Phosphate removal; Thermodynamic; Water treatment plant sludge; PHOSPHORUS REMOVAL; AQUEOUS-SOLUTION; ALUM SLUDGE; ADSORPTION; MECHANISMS; SURFACES; ASH;
D O I：
10.5004/dwt.2019.25087
中图分类号：
TQ [化学工业];
学科分类号：
0817 ;
摘要：
In this study, the potential of alum sludge, obtained from a drinking water treatment plant located in Istanbul, Turkey, as an adsorbent for the removal of phosphate from aqueous solution was investigated. The effects of adsorbent amount, pH, initial concentration, and temperature on phosphate removal were studied by batch adsorption experiments. Equilibrium data were analyzed according to the Langmuir and the Freundlich isotherms. The Freundlich isotherm equation provided a better fit than the Langmuir isotherm equation. Thermodynamic parameters (Delta G, Delta H, and Delta S) related to the process were also calculated and reported. The positive value of Delta H and Delta S indicated the endothermic nature of the phosphate adsorption and the affinity of the adsorbent for the phosphate, respectively.
引用
收藏
页码：61 / 69
页数：9
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