Cellulose-Derived Nanomaterials for Affordable and Rapid Remediation of Uranium in Water

ACS Sustainable Chemistry & Engineering, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 23, 2025

Language: Английский

---

Box‐Behnken Design for Mitigation of Cadmium Bivalent Ions from Aqueous Medium

Chemistry & Biodiversity, Journal Year: 2024, Volume and Issue: unknown

Published: July 22, 2024

Abstract Statistical analysis is essential for minimizing the time, cost, and number of experiments needed to get maximum output. In this work, removal cadmium bivalent (Cd (II)) ions was optimized using Box‐Behnken design methodology. The effects pH, concentration, temperature were investigated cadmium. Maximum (85.70 %) achieved at pH 5.34, initial Cd(II) concentration 46.61,contact time 166.09 (min), 59.40 °C on Punica Granatum carpellary membrane powder (PGCMP) 88.61 % its modified forms (MPGCMP) 5.79, 65.70,contact 178.96, 59.91 temperature. model validated by analyzing variance (ANOVA). practical data well fitted quadratic model. PGCMP MPGCMP found be naturally occurring, environmentally friendly adsorbents mitigation Cd (II) as other toxic heavy metals from drinkable or wastewater.

Language: Английский

---

Mitigation of Fluoride Contamination in Drinking Water Supply Sources by Adsorption Using Bone Char: Effects of Mineral and Organic Matrix

Water, Journal Year: 2024, Volume and Issue: 16(20), P. 2991 - 2991

Published: Oct. 20, 2024

This study focused on fluoride (F−) contamination of water sources in Bahimi village, Cameroon. After the first investigation, results revealed that all samples collected had elevated concentrations ions (2.3 ± 0.1) mg/L to (4.5 0.2) above WHO guidelines (less than 1.5 mg/L). To mitigate F− levels, use bone char (BC) as an adsorbent material was proposed and its performance tested. BC prepared from bovine bones at different calcination temperatures (350 °C, 450 550 °C 650 °C) residence times (1 h 2 h). The materials were characterized detail by SEM/EDS, BET, FTIR, XRD. BET findings indicated surface area decreased with increasing temperature time. At a lower heating holding time 1 h), exhibited higher specific (112.3 0.3) m2/g adsorption capacity for sampled water. Also, batch experiments showed optimized dose 8 g/L facilitates reduction level below acceptable limit (1.5 mg/L) within 5 min treatment. presence Ca2+ Mg2+ natural has positive effect removal resulting high range (72.5 1.4)% (80.3 0.6)%. It found occurs via cation exchange Na+. However, increase dissolved organic carbon (DOC) treated limited application BC. Overall, presented cost-effective this recalcitrant ion source.

Language: Английский

---

Assessing the Arsenic Contents and Associated Risks in Groundwater of Vehari and Lodhran Districts, Pakistan

Water, Journal Year: 2024, Volume and Issue: 16(21), P. 3055 - 3055

Published: Oct. 24, 2024

Exposure to arsenic (As) can induce numerous lethal diseases, such as cancer, cardiovascular issues, skin and diabetes in humans. The major route of human animal exposure As is through drinking As-rich groundwater. This study assessed occurrence the groundwater two districts Punjab (Vehari Lodhran) provinces Pakistan. Groundwater analysis revealed an average concentration 7.7 µg/L (n = 79) area, with a maximum up 41.4 (33% samples exceeding WHO limit 10 µg/L). Arsenic traces were found milk 15, mean: 0.79 µg/L, 17% 2.0 µg/L), hair 12, 0.36 µg/g, 1.0 µg/g), nails 8, 0.03 none exceeded µg/g). Health risk assessment indices that about 33% hazard quotient 54% cancer factor their thresholds. Despite low–moderate accumulation few biological samples, there possibility potential poisoning via long-term continuous use for drinking. Monitoring blanket testing wells well water provide baseline data minimize threat As-mediated arsenicosis As-affected areas Moreover, detailed higher number recommended area.

Language: Английский

---

Environmental arsenic exposure and reproductive system toxicity in male and female and mitigatory strategies: a review

Environmental Geochemistry and Health, Journal Year: 2024, Volume and Issue: 46(10)

Published: Sept. 13, 2024

Language: Английский

---