Utilization of pumice from Sungai Pasak, West Sumatera, Indonesia as low-cost adsorbent in removal of manganese from aqueous solution

Indah, Shinta; Helard, Denny; Edwin, Tivany; Pratiwi, Rahmi

doi:10.1063/1.4978145

Cited by 8 publications

(8 citation statements)

References 25 publications

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“…As the adsorbent dose increased, the sorption sites remain unsaturated during the adsorption reaction and the agglomeration of adsorbent particles may occur that reducing the available external surface area and an increase in di usional path length both of which contribute to decrease in amount adsorbed per unit mass. It is in accordance with our previous study and also con rms observations by other investigators (Indah et al, 2017;Dhanakumar et al, 2007;Yu et al, 2003). A maximum adsorption uptake at equilibrium of 0.043 mg Cr/g was obtained for a pumice dose of 0.3 g/L.…”

Section: E Ect Of Adsorbent Dosesupporting

confidence: 93%

“…Adsorption on solid surfaces is the most common one since it is easy to be applied, has a simple design, and insensitive to toxic substances. Adsorption also o ers selectivity in removing low levels of heavy metals from dilute solutions and environmental friendly if combined with appropriate adsorbent and regeneration steps (Bingöl et al, 2012;Indah et al, 2017). Many e orts are being made continuously to develop new, low cost and e cient adsorbents for removal of metals including chromium.…”

Section: Introductionmentioning

confidence: 99%

“…Several low cost adsorbents from agricultural wastes such as rice husk ash (Zhang et al, 2014) and maize husk (Indah et al, 2016) have been used as adsorbent. Moreover, the potential the use of natural materials or local minerals such as zeolite (Motsi et al, 2009) bentonite (Melichová and Hromada, 2012), and pumice (Sepehr et al, 2014;Indah et al, 2017) also have been widely considered because of better performance and low cost of these materials. Among these natural materials, pumice which is a volcanic stone and can be found in many regions of the world has a low weight and a porous structure (up to 85%).…”

Section: Introductionmentioning

confidence: 99%

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Adsorption and Regeneration of Indonesian Natural Pumice for Total Chromium Removal from Aqueous Solution

Indah

Helard

Marchelly

et al. 2018

indones. j. env. man. sus.

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To investigate the potential of adsorption and regeneration of natural pumice from West Sumatera Indonesia for total chromium (Cr) removal from aqueous solution, batch experiments in multiple adsorption-desorption cycles were performed. The results indicated that the optimum condition of total Cr removal were 3 of pH solution, 0.3 g/L of adsorbent dose, 60 min of contact time of adsorption, <63 ?m of diameter of adsorbent, and 1 mg/L of total Cr initial concentration with 2.226 mg Cr/g pumice of total Cr uptake. The experimental data obtained were fitted with the Freundlich adsorption isotherm within the concentration range studied. Desorption efficiencies for total Cr ions by using 0.1 M HCl as desorbing agent were in the range of 31-32%. Although complete desorption were not attained, the natural pumice could be sufficiently reused up to 3 cycles of adsorption- desorption with increasing trend in total Cr uptake that may due to the surface modification of natural pumice caused by HCl. Overall results revealed that easy availability of natural pumice as local mineral in West Sumatra, Indonesia and its ability to adsorb and retain total Cr will create more interest to develop new natural adsorption method of pollutant removal from solution.

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Section: E Ect Of Adsorbent Dosesupporting

confidence: 93%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Adsorption and Regeneration of Indonesian Natural Pumice for Total Chromium Removal from Aqueous Solution

Indah

Helard

Marchelly

et al. 2018

indones. j. env. man. sus.

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“…In this location, pumice is available in a high abundance, as byproduct of sand mining process. This local mineral has potential for removal of iron and manganese from water, as previous investigations [13], 14]. On the other hand, the application of column adsorption is practical and economic since the operation is performed continuously and the process is controllable [15], [16].…”

Section: Introductionmentioning

confidence: 69%

“…Several studies have been conducted to improve the operational period and minimize the operational costs of the treatment process by using natural materials which are abundantly available to search alternative methods. Some kinds of adsorbents have been used for metal removal from water in the recent literature, such as seashells, crab shells, eggshells, palm husks, rice husks, fruit seeds, fruit peel, zeolites, and pumice [2], [8]- [13]. Among these natural materials, pumice which is a volcanic stone and can be found in many regions of the world has a low weight and a porous structure (up to 85%).…”

Section: Introductionmentioning

confidence: 99%

Column Study of Aluminum Adsorption from Groundwater by Natural Pumice

Indah

Helard

Hudawaty

2019

Int. J. Adv. Sci. Eng. Inf. Technol.

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Contamination of groundwater by heavy metals is an environmental problem worldwide. Metal poisoning leads severe damage to human health that can cause the death. One of metals contained in the ground water is aluminium, which can be selectively leached from rock and soil to enter any water source. The removal of aluminum from groundwater by natural pumice from Sungai Pasak, West Sumatera, Indonesia was investigated in a continuous fixed-bed column. The performances of column were evaluated by varying the adsorbent bed depth (65-85 cm) and influent flow rate (2-4 gpm/ft 2 equal to 43-87 mL/min). The results revealed that the increase in bed depth increased the amount of adsorbent used, thus increasing the total removal of aluminum and prolonged the lifespan of the natural pumice column. However, the increase in influent flow rate resulted in the shortened lifespan of the column. The increased flow rate also led the column exhaustion time to reach earlier. Therefore, to obtain optimum performance, suitable parameters are necessary for the column system operation. The column system with a bed depth of 85 cm and flow rate of 2 gpm/ft 2 (43 mL/min) showed the best aluminum uptake performance in this study with a total removal of 59.5% and an adsorption capacity of 0.056 mg/g. The results showed that the natural pumice has potential for removing of aluminum from groundwater by column.

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Removal of nitrate using modified pumice as adsorbent for reducing groundwater pollution

et al. 2021

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Nitrate adsorption onto the physically and chemically modified pumice was investigated as an effort for reducing groundwater pollution. The treatments were heating at temperatures of 300°C, 450°C, and 600°C for physical and soaking in acid solutions (HCl, H2SO4, and HNO3) for chemical treatments. The adsorption was performed in a batch system at room temperature (25±1°C) with the optimum condition (pH 4; 0.3 g/L of adsorbent dose; <63 µm of adsorbent diameters and 30 minutes of contact time). The results indicated that the physically and chemically modified pumice resulted in increasing removal efficiency and nitrate uptake compared to the natural pumice. The highest removal efficiency and nitrate uptake were achieved from 300°C of heating temperatures (62.04% and 155.09 mg/g) and H2SO4 for the acid solution (83.30% and 208.25 mg/g), while by using the natural pumice only reached 57.02 % and 142.55 mg/g. The SEM images of the modified pumice confirmed the change in the surface morphology of pumice including the pore structure and surface area which can be proper sites for adsorption of pollutants. This study demonstrated that physical and chemical modification could be the potential treatment to increase the removal efficiency and nitrate uptake of the natural pumice, thus can solve the problem of groundwater pollution.

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Utilization of pumice from Sungai Pasak, West Sumatera, Indonesia as low-cost adsorbent in removal of manganese from aqueous solution

Cited by 8 publications

References 25 publications

Adsorption and Regeneration of Indonesian Natural Pumice for Total Chromium Removal from Aqueous Solution

Adsorption and Regeneration of Indonesian Natural Pumice for Total Chromium Removal from Aqueous Solution

Column Study of Aluminum Adsorption from Groundwater by Natural Pumice

Removal of nitrate using modified pumice as adsorbent for reducing groundwater pollution

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