Arsenic Removal Properties of Laterite Soil by Adsorption Filtration Method

Halim, Mohammad A.; Hoque, S. A. M. Waliul; Hossain, MZ; Saadat, A. H. M.; Goni, M. A.; Islam, M. Saiful

doi:10.3923/jas.2008.3757.3760

Cited by 2 publications

(2 citation statements)

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“…These types of soils are formed under warm temperatures and abundant rainfalls in tropical and subtropical climates such as Bangladesh, Sri Lanka, India, Thailand, etc (Maji et al 2008). In Bangladesh, LS is mainly available in Madhupur Tract or Red Soil Tract such as Narsingdi, Gazipur, Tangail, and in Chittagong district (Halim et al 2008).…”

Section: Introductionmentioning

confidence: 99%

“…Moreover, the hydrous iron and aluminum oxides in LS are mainly responsible for producing net positive surface charge, which shows the capacity to absorb anionic components like chloride ions (Ranasinghe et al 2014). Studies also revealed that LS is temperature sensitive for adsorption of As and F (Halim et al 2008;Gomoro et al 2012). Thermally treated LS at 400 °C showed its efficiency in removing fluoride ions from drinking water.…”

Section: Introductionmentioning

confidence: 99%

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Application of laterite soil in removing chloride ion from drinking water

Mita

Ekra

Banik

et al. 2022

Water Practice and Technology

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Increasing salinity is a crucial issue for the people of coastal regions in Bangladesh. To resolve this problem, efficient and low-cost materials can be used as adsorbents to remove salinity from water. Among those, laterite soil (LS) is one of the efficient adsorbents in water treatment. This study demonstrates a low-cost salinity removal technique using laterite soil as adsorbent. The effect of burning temperature on raw laterite and synthetic laterite has been analyzed. The performance of the adsorbents has been observed in terms of efficiency in salinity removal. Both batch and column adsorption have been carried out to evaluate the adsorption capacity of raw LS and burned LS, respectively. Raw laterite shows maximum adsorption capacity of 21.24 mg/g in batch adsorption at an initial concentration of 900 mg/L. The optimum burning temperature for thermally treated LS has been found as 600 °C. However, SLS burned at 600 °C gives greater chloride ion removal efficiency (44.54%) than LS (38.23%) in removing salinity from water.

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Section: Introductionmentioning

confidence: 99%