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Table 5

Adsorbents reported for landfill leachate treatment

Pollutants in landfill leachateAdsorbentAdsorption isothermAdsorption capacity (mg/g)RemarksReferences
TSS Activated carbon (AC) Langmuir 1.77 AC was derived from coconut shell. AC was modified by heating at 600 °C. Erabee et al. (2018)  
Ammonia 3.18 
Zn 0.02 
Mn 0.06 
Cu 0.07 
S2- 0.02 
COD AC Langmuir 272.75 AC was derived from walnut shell. Mahdavi et al. (2018)  
Colour AC Langmuir 555.55 AC was derived from sugarcane bagasse. Azmi et al. (2015)  
COD 126.58 
Ammonia 14.61 
Colour Freundlich 0.67 
COD 0.20 (10−2
Ammonia 3.0 (10−7
Pb AC Pseudo-second order 0.03 AC was derived from sugarcane bagasse. Salas-Enríquez et al. (2019)  
Cu 0.01 
Ni 0.01 
Zn 0.01 
Colour Biochar Langmuir 83.33 Biochar was derived from fallen mature fruits at 600 °C. Shehzad et al. (2016)  
COD Biochar 35.71 
Ammonia  500.00 
COD Biochar Pseudo-second order 490 Biochar was derived from coconut shell at high temperature, and it is activated via microwave heating. Lam et al. (2020)  
COD Biochar Freundlich 5.80 Biochar was derived from Miscanthus at 450. Kwarciak-Kozłowska et al. (2019)  
FA Magnetic graphene oxide Langmuir 82.16 – Zhang et al. (2016)  
HA 106.50 
Pb 45.50 
Bisphenol A Bentonite modified by hexadecyl trimethyl ammonium bromide (HTAB) Pseudo-second order 10.44 The HTAB-bentonite was synthesized by cation exchange with HTAB solution (20 mmol/L) over stirring. Li et al. (2015)  
Ni Red mud Langmuir 11.06 Batch experiments were done with neutral pH, adsorbent dosage of 10 g/L and shaking speed of 75 rmp. Ayala & Fernández (2019)  
Zn 12.04 
Cd 12.57 
Ni Freundlich 2.08 
Zn 4.40 
Cd 3.79 
Ammonia Zeolites (Clinoptilolite) Langmuir 17.45 – Pauzan et al. (2020)  
Bisphenol A High silica Y-type zeolite powder Pseudo-second order 141.0 Batch experiments were done in temperature room for 4 h at pH = 7. Chen et al. (2015)  
Colour Zeolites Langmuir 0.01 Activated zeolites were produced by heating to 250 °C. Aziz et al. (2020)  
COD 3.0 (10−4
Ammonia 8.9 (10−3
Colour Zeolites Langmuir 42.55 – Bashir et al. (2017)  
COD 0.22 
Ammonia 0.31 
Pb MS@GG Pseudo-second order 253.80 MS modified with PDA and then coated with glutathione/graphene oxide (GG) Feng et al. (2019)  
HA Aminated Magnetic Nanoadsorbent Langmuir 181.82 Amino-functionalized Fe3O4@SiO2 nanoparticles were produced by surface functionalization of Fe3O4@SiO2 nanoparticles using (3-aminopropyl) trimethoxysilane (APTMS) as the silylation agent. Batch experiments were done at neutral pH and shaken speed 150 rmp. Wang et al. (2015a, 2015b) > 
Pb Fe3O4@Mesoporous Silica-Graphene Oxide Composites Langmuir 333.33 – Wang et al. (2013)  
Cd 166.67 
Pollutants in landfill leachateAdsorbentAdsorption isothermAdsorption capacity (mg/g)RemarksReferences
TSS Activated carbon (AC) Langmuir 1.77 AC was derived from coconut shell. AC was modified by heating at 600 °C. Erabee et al. (2018)  
Ammonia 3.18 
Zn 0.02 
Mn 0.06 
Cu 0.07 
S2- 0.02 
COD AC Langmuir 272.75 AC was derived from walnut shell. Mahdavi et al. (2018)  
Colour AC Langmuir 555.55 AC was derived from sugarcane bagasse. Azmi et al. (2015)  
COD 126.58 
Ammonia 14.61 
Colour Freundlich 0.67 
COD 0.20 (10−2
Ammonia 3.0 (10−7
Pb AC Pseudo-second order 0.03 AC was derived from sugarcane bagasse. Salas-Enríquez et al. (2019)  
Cu 0.01 
Ni 0.01 
Zn 0.01 
Colour Biochar Langmuir 83.33 Biochar was derived from fallen mature fruits at 600 °C. Shehzad et al. (2016)  
COD Biochar 35.71 
Ammonia  500.00 
COD Biochar Pseudo-second order 490 Biochar was derived from coconut shell at high temperature, and it is activated via microwave heating. Lam et al. (2020)  
COD Biochar Freundlich 5.80 Biochar was derived from Miscanthus at 450. Kwarciak-Kozłowska et al. (2019)  
FA Magnetic graphene oxide Langmuir 82.16 – Zhang et al. (2016)  
HA 106.50 
Pb 45.50 
Bisphenol A Bentonite modified by hexadecyl trimethyl ammonium bromide (HTAB) Pseudo-second order 10.44 The HTAB-bentonite was synthesized by cation exchange with HTAB solution (20 mmol/L) over stirring. Li et al. (2015)  
Ni Red mud Langmuir 11.06 Batch experiments were done with neutral pH, adsorbent dosage of 10 g/L and shaking speed of 75 rmp. Ayala & Fernández (2019)  
Zn 12.04 
Cd 12.57 
Ni Freundlich 2.08 
Zn 4.40 
Cd 3.79 
Ammonia Zeolites (Clinoptilolite) Langmuir 17.45 – Pauzan et al. (2020)  
Bisphenol A High silica Y-type zeolite powder Pseudo-second order 141.0 Batch experiments were done in temperature room for 4 h at pH = 7. Chen et al. (2015)  
Colour Zeolites Langmuir 0.01 Activated zeolites were produced by heating to 250 °C. Aziz et al. (2020)  
COD 3.0 (10−4
Ammonia 8.9 (10−3
Colour Zeolites Langmuir 42.55 – Bashir et al. (2017)  
COD 0.22 
Ammonia 0.31 
Pb MS@GG Pseudo-second order 253.80 MS modified with PDA and then coated with glutathione/graphene oxide (GG) Feng et al. (2019)  
HA Aminated Magnetic Nanoadsorbent Langmuir 181.82 Amino-functionalized Fe3O4@SiO2 nanoparticles were produced by surface functionalization of Fe3O4@SiO2 nanoparticles using (3-aminopropyl) trimethoxysilane (APTMS) as the silylation agent. Batch experiments were done at neutral pH and shaken speed 150 rmp. Wang et al. (2015a, 2015b) > 
Pb Fe3O4@Mesoporous Silica-Graphene Oxide Composites Langmuir 333.33 – Wang et al. (2013)  
Cd 166.67 
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