Publications by authors named "Monishanker Halder"

The widespread presence of Microplastics (MPs) is increasing in the indoor environment due to increasing annual plastic usage, which is becoming a global threat to human health. Therefore, this is the first research in Bangladesh to identify, and characterize, MP pollution and its allied threats to human health in the indoor urban environment, where 80 household dust samples were collected from the whole study area. The presence of MPs in household dust of the urban indoor environment was 25.

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Microplastics (MPs) are an emerging global concern due to severe toxicological risks for ecosystems and public health. Therefore, this is the first study in Bangladesh to assess MP pollution and its associated risks for ecosystems and human health in the outdoor urban environment using machine learning and multivariate approaches. The occurrences of MPs in the urban road dust were 52.

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This study focuses on the probable use of municipal organic solid waste charcoal (MOSWC) as an adsorbent for Methyl orange (MO) adsorption. The prepared MOSWC is characterized by FE-SEM and FT-IR. Batch adsorption experiments were conducted with the influencing of different operational conditions namely time of contact (1-180 min), adsorbate concentration (60-140 mg/L), adsorbent dose (1-5 g/L), pH (3-11), and temperature (25-60 °C).

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Article Synopsis
  • The study investigates the use of black carbon from PET waste and rice straw as adsorbents for removing Acid Red 27 dye from wastewater.
  • The adsorbents were thoroughly characterized, and experiments were carried out to understand how various factors like time, dye concentration, adsorbent amount, pH, and temperature affect their efficacy.
  • Results showed that both adsorbents achieved over 99% removal efficiency at optimal pH levels, with machine learning models validating the effectiveness of the adsorption process.
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