Effects of Humic Acid and Suspended Solids on the Removal of Heavy Metals from Water by Adsorption onto Granular Activated Carbon

Sounthararajah, Danious Pratheep; Loganathan, P.; Kandasamy, Jaya; Vigneswaran, S.

doi:10.3390/ijerph120910475

Cited by 52 publications

(27 citation statements)

References 34 publications

(33 reference statements)

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“…This may be due to positively charged metal ions getting adsorbed to the negatively charged ions of the turbid solution, thereby rendering them unavailable for the biosorption process. Similar observation was reported by [18]. …”

Section: F Effect Of Turbiditysupporting

confidence: 92%

Biosorption Studies of Copper, Chromium, Lead and Zinc Using Fins of Catla Catla Fish

Gupta¹

2017

IJRASET

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The discharge of heavy metals from industrial effluents into the environment is a major concern today due to its toxicity and persistence in the environment. The present work deals with the removal of heavy metals i.e. Copper, Chromium, Lead and Zinc ions from aqueous solutions using fins of Catla catla fish. The effect of varying conditions in aqueous solution like pH, contact time, temperature, initial metal concentration, turbidity and biosorbent dosage on the biosorption processes was studied. Further, the biosorbent was used to remove heavy metals from different industrial effluents. The percentage removal of heavy metal ions from the industrial effluents using fins of Catla catla fish as a biosorbent were found in the following range: Copper ions (32.95 -99.34 %), Chromium ions (26.64 -100 %), Lead ions (19.85 -56.06 %) and Zinc ions (30.01 -99.24 %). The heavy metal concentration in aqueous solutions was estimated using ICP-AES and the structural characteristics of the biosorbent was determined by using Fourier Transform Infrared Spectroscope (FT-IR) analysis. The adsorption isotherm studies were carried out using Freundlich and Langmuir isotherm models. It was observed that fins of Catla catla which is thrown from fish market as wastes, have the capacity to remove heavy metals from aqueous solution and hence it can be used to remove heavy metals from industrial effluents.

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Section: F Effect Of Turbiditysupporting

confidence: 92%

Biosorption Studies of Copper, Chromium, Lead and Zinc Using Fins of Catla Catla Fish

Gupta¹

2017

IJRASET

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“…However, the results also verified Humic acids (HA) are the major components of dissolved organic matter in natural surface water. They can have excellent binding characteristics and electrostatic interactions with metal ions in solution, leading to the formation of metal-organic complexes, which might affect the adsorption of metal ions on the prepared adsorbent [51][52][53]. The effect of HA on the adsorption behaviors of metal ions onto the prepared MONPs-EG in single and binary systems are shown in Figures 5 and 7.…”

Section: Thermodynamic Studymentioning

confidence: 99%

Adsorption of Lead and Nickel on to Expanded Graphite Decorated with Manganese Oxide Nanoparticles

et al. 2019

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In this study, expanded graphite (EG) was decorated with manganese oxide nanoparticles (MONPs) by the hydrothermal method, and the newly formed composite (MONPs-EG) was applied as adsorbent for the removal of heavy metals from aqueous solutions. The comparative and competitive adsorption of Pb2+ and Ni2+ (0.01–1.00 mM) on MONPs-EG was investigated. Data from isothermal adsorption of single and binary systems suggested that both Pb2+ and Ni2+ were well described by the Langmuir isotherm, and the maximum adsorption capacities at 298 K were calculated at 0.278 and 0.113 mmol/g for Pb2+ and Ni2+, respectively. In binary systems, a dramatic decrease in adsorption capacity of Ni2+ was observed, while the adsorption capacity of Pb2+ was almost stable, indicating the favorable adsorption of Pb2+ over Ni2+ onto the prepared adsorbent. Kinetics studies of single and binary systems showed that a pseudo-second order model could explain the adsorption processes well. Thermodynamic analysis results demonstrated that the adsorption of these metal ions on the prepared adsorbent is spontaneous and exothermic in nature. The adsorption capacity of MONPs-EG increased significantly in the presence of humic acids. Overall, the results of this study suggest that MONPs-EG can be used effectively as an adsorbent for heavy metals removal from aqueous solutions.

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“…Metode penentuan pH Point of Zero Charge (pH PZC ) dapat dilakukan dengan cara memasukkan kedalam beberapa erlenmeyer masing-masing 20 mL larutan NaNO 3 , kemudian pH larutan diatur 1-8 dengan menggunakan HNO 3 0,1M atau NaOH 0,1 M. Kemudian dimasukkan biosorben 0,1 g ukuran 160 µm, setelah itu dikocok pada 100 rpm selama 24 jam, pH masing-masing larutan diukur kembali. pH awal disebut pH 0 dan pH akhir disebut pH f (Sounthararajah et al 2015).…”

Section: Karakteristik Dari Adsorbenunclassified

Kulit Salak Sebagai Biosorben Potensial Untuk Pengolahan Timbal(II) Dan Cadmium(II) Dalam Larutan

et al. 2018

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Abstrak: Biosorben dari kulit salak (Salacca sumatrana) digunakan untuk mempelajari penyerapan Pb(II) dan Cd(II) dalam larutan dengan metode batch. Adsorpsi Pb(II) dan Cd(II) menggunakan kulit salak ini dipelajari pada variasi pH, konsentrasi adsorbat dan waktu kontak. Kondisi optimum penyerapan yang diperoleh pH 4 untuk Pb(II) dan 5 untuk Cd(II), konsentrasi adsorbat 1200 mg/L untuk Pb(II) dan 800 mg/L untuk Cd(II), waktu kontak 45 menit untuk Pb(II) dan 15 menit untuk Cd(II). Kapasitas penyerapan dari biosorben kulit salak sebesar 83,33 mg/g untuk Pb(II) dan 27,78 mg/g untuk Cd(II) dengan pola adsorpsi mengikuti isoterm Langmuir dengan koefisien determinasi 0,987 dan 0,937 dan data kinetika mengikuti model pseudo orde kedua. Konsentrasi Pb(II) dan Cd(II) sebelum dan setelah penyerapan ditentukan dengan Spektrometri Serapan Atom (SSA), karakterisasi kulit salak dilakukan dengan FTIR dan SEM. Adsorben kulit salak sangat baik digunakan untuk mengurangi kadar Pb(II) dan Cd(II) dalam larutan. Kata kunci: kulit salak, adsorpsi, logam beratAbstract: Biosorbent of salacca (Salacca sumatrana) husk was used to study the sorption of Pb (II) and Cd (II) ion from aqueous solutions by batch method. Adsorption using the salacca husk parameters studied was variation of pH, adsorbate concentration and contact time. The optimum condition adsorption occurred at pH 4 for Pb(II) and 5 for Cd(II), adsorbate concentration 1200 mg/L for Pb(II) and 800 mg/L for Cd(II) and contact time 45 minutes for Pb(II) and 15 minutes for Cd(II). Adsorption capacity of salacca husk biosorbent was 83.33 mg/g for Pb (II) and 27.78 mg/g for Cd (II). This Adsorption follows Langmuir isotherm pattern with determination factor 0.987 and 0.937. Kinetics data follows pseudo-second order model. Pb (II) and Cd (II) concentrations before and after adsorption were analyzed using Atomic Absorption Spectrometer (AAS), characterization of salacca husk was conducted by Fourier Transform Infra Red (FTIR) and Scanning Electron Microscopy (SEM). Adsorbent of salacca husk is potencial for decreasing amounts of Pb (II) and Cd (II) in the aqueous solution.

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Effects of Humic Acid and Suspended Solids on the Removal of Heavy Metals from Water by Adsorption onto Granular Activated Carbon

Cited by 52 publications

References 34 publications

Biosorption Studies of Copper, Chromium, Lead and Zinc Using Fins of Catla Catla Fish

Biosorption Studies of Copper, Chromium, Lead and Zinc Using Fins of Catla Catla Fish

Adsorption of Lead and Nickel on to Expanded Graphite Decorated with Manganese Oxide Nanoparticles

Kulit Salak Sebagai Biosorben Potensial Untuk Pengolahan Timbal(II) Dan Cadmium(II) Dalam Larutan

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