A new efficient indigenous material for simultaneous removal of fluoride and inorganic arsenic species from groundwater

Kazi, Tasneem Gul; Brahman, Kapil Dev; Baig, Jameel Ahmed; Afridi, Hassan Imran

doi:10.1016/j.jhazmat.2018.05.069

Cited by 71 publications

(31 citation statements)

References 45 publications

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“…In addition, chronic arsenic toxicity can cause cardiovascular diseases, hypertension and affects vascular system. 26 Long-term contact with arsenic contaminated water can lead to pigmentation of the skin and development of hard patches on the palm of humans. 27 To mitigate this situation, World Health Organization has reduced the maximum contaminant limit (MCL) of arsenic in drinking water from 50 to 10 mg L À1 .…”

Section: Harmful Effect Of Arsenic Pollutionmentioning

confidence: 99%

A critical review on arsenic removal from water using iron-based adsorbents

et al. 2018

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Section: Harmful Effect Of Arsenic Pollutionmentioning

confidence: 99%

A critical review on arsenic removal from water using iron-based adsorbents

et al. 2018

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“…Biomass contains a minimal amount of sulfur, nitrogen, and ash which make them more environment-friendly [4]. It is not only the carbon-neutral sources, but it has the potential applications in energy storage [3], water purification [5,6], hydrogen storage [7], and catalysis [4,8]. In recent years, various indigenous biomass including agricultural wastes has been used enormously as a sustainable precursor to produce hydrochar, biochar, and activated carbon [4].…”

Section: Introductionmentioning

confidence: 99%

Preparation, characterization and cost analysis of activated biochar and hydrochar derived from agricultural waste: a comparative study

et al. 2019

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Utilization of low-cost, abundant and biomaterials is highly recommended for sustainable environment protection. This study presents a comparative analysis on the preparation, characterization and cost analysis of the novel activated biochar (BTS) and activated hydrochar (HTS). Teff (Eragrostis tef) straw was used as a precursor for producing BTS and HTS through pyrolysis and hydrothermal carbonization process, respectively. Both chars were further activated using 30 wt% H 3 PO 4 for 3 h activation time. The physicochemical properties of both chars were compared by different characterization techniques including BET, FTIR, XRD, SEM, and TGA. Briefly, BTS exhibited heterogeneous surface structures and comparatively larger specific surface area (627.7 m 2 /g) than that of HTS (43.8 m 2 /g) with the smooth coalesced carbon layer and dull surface edges. The XRD analysis revealed the amorphous character of HTS which is dominantly composed of AlPO 4 , whilst indicating BTS to be the crystalline structure with the very trivial amount of impurities. The oxygen-containing functional groups increased for HTS in comparison to BTS. Thermogravimetric analysis showed that HTS exhibited better thermal behaviors. Estimated costs incurred in the production of the HTS were found to be cheaper than compared to BTS. Overall, the experiment result suggested that Teff straw could have the potential for producing a low cost activated chars.

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“…Adsorption by agricultural wastes have several advantages comparing to other techniques mainly selectivity for specific contaminants, low cost, no minor toxic compounds and high metal binding efficiency (Yadanaparthi et al, 2009). Adsorption of arsenic has been studied using several agriculture wastes as adsorbent such as tea waste (Hossain et al, 2016), lemon peel (Nodoushan et al, 2017), heated laterite (Saadon et al, 2018) and Cucumis pubescens (Kazi et al, 2018). Potato is the most produced and consumed carbohydrate worldwide.…”

Section: Introductionmentioning

confidence: 99%

Optimization of Arsenic Adsorption onto Cativated Carbon Dreived from Potato Peel Using Response Surfase Methodology

Haji

Mohammed

2019

SJUOZ

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The present study was designed to optimizing the adsorption of As (V) onto potato peel derived activated carbon (MPP-AC) by employing response surface method and central composite design. Adsorbent of cheap and locally available potato residue was produced based on chemical activation with H3PO4 subsequently carbonization to produce the porous activated carbon. The individual and interactive effects of five variables including initial arsenic concentration, temperature, time, dosage amount and pH of the medium were investigated. Based on the statistic analysis (ANOVA), the quadratic model was developed associating the adsorption capacity (qe). The optimum conditions were obtained of 9.98 mg L-1 of initial As (V) concentration, 28 °C of temperature, 39.7 min of time, 0.97 g of adsorbent dose and 7.3 of pH. The maximum adsorption capacity was 0.27 mg g-1 and 76.5% removal efficiency. The equilibrium isotherms and kinetic studies for estimating the mechanism of process demonstrated a good fit to Langmuir model and the pseudo-second order, respectively. The results of this study showed that the feasibility of central composite design for control adsorption process and indicated the use of activated carbon of potato residue have important implications for As (V) removal.

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A new efficient indigenous material for simultaneous removal of fluoride and inorganic arsenic species from groundwater

Cited by 71 publications

References 45 publications

A critical review on arsenic removal from water using iron-based adsorbents

A critical review on arsenic removal from water using iron-based adsorbents

Preparation, characterization and cost analysis of activated biochar and hydrochar derived from agricultural waste: a comparative study

Optimization of Arsenic Adsorption onto Cativated Carbon Dreived from Potato Peel Using Response Surfase Methodology

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