Copper and Zinc Removal from Wastewater Using Alum Sludge Recovered from Water Treatment Plant

被引：7

作者：

Abba, Alia Besma ^{[1
]}

Saggai, Sofiane ^{[1
]}

Touil, Youcef ^{[2
]}

Al-Ansari, Nadhir ^{[3
]}

Kouadri, Saber ^{[1
]}

Nouasria, Fatima Zohra ^{[4
]}

Najm, Hadee Mohammed ^{[5
]}

Mashaan, Nuha S. ^{[6
]}

Eldirderi, Moutaz Mustafa A. ^{[7
]}

Khedher, Khaled Mohamed ^{[8
,9
]}

机构：

[1] Univ Ouargla, Lab Water & Environm Engn Saharan Environm, PB 147 RP, Ouargla 30000, Algeria

[2] Univ Ouargla, Lab Biogeochem Desert Environm, PB 147 RP, Ouargla 30000, Algeria

[3] Lulea Univ Technol, Dept Civil Environm & Nat Resources Engn, S-97187 Lulea, Sweden

[4] Univ Ouargla, Dynam Interact & React Syst, PB 147 RP, Ouargla 30000, Algeria

[5] Aligarh Muslim Univ, Zakir Husain Engn Coll, Dept Civil Engn, Aligarh 202002, Uttar Pradesh, India

[6] Curtin Univ, Fac Sci & Engn, Sch Civil & Mech Engn, Bentley, WA 6102, Australia

[7] King Khalid Univ, Coll Engn, Dept Chem Engn, Abha 61421, Saudi Arabia

[8] King Khalid Univ, Coll Engn, Dept Civil Engn, Abha 61421, Saudi Arabia

[9] High Inst Technol Studies, Dept Civil Engn, Mrezgua Univ Campus, Nabeul 8000, Tunisia

来源：

SUSTAINABILITY | 2022年 / 14卷 / 16期

关键词：

aluminum sludge; heavy metals; zinc; copper; wastewater; reuse treatment; ADSORPTION; OPTIMIZATION; CAPACITY; SORPTION; REUSE;

D O I：

10.3390/su14169806

中图分类号：

X [环境科学、安全科学];

学科分类号：

08 ; 0830 ;

摘要：

The study aimed to determine Aluminum sludge composition and structure for its valorisation as an alternative natural material for heavy metals removal from wastewater for further reuse as treated water in different applications. The study was conducted to investigate the introduction of Al-bearing sludge composition. The physical and chemical properties were examined using X-ray diffraction tests (XRD), scanning electron microscope tests (SEM), Fourier-transform infrared tests (FTIR), and Brunauer-Emmett-Teller tests (BET). Furthermore, the heavy metal concentrations of synthetic wastewater were measured using the spectrophotometry method. The experimental procedure is based on testing different pH limits and amounts of aluminum sludge to find the optimum conditions for copper (Cu) and zinc (Zn) removal. The results demonstrated a high removal efficiency where its value reached up to 97.4% and 96.6% for Zn and Cu, respectively, in an acidic medium (pH = 6) using a relatively high amount of sludge (1400 mg). Nevertheless, a low efficiency was obtained in the strongly acidic medium (pH = 4) and a smaller sludge amount of about 480 mg.

引用

页数：13

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