The Deep Removal of Mercury in Contaminated Acid by Colloidal Agglomeration Materials M201 DOI Open Access

Shuchen Qin,

Biwen Yang,

Derek O. Northwood

и другие.

Minerals, Год журнала: 2024, Номер 14(8), С. 782 - 782

Опубликована: Июль 31, 2024

The high-temperature roasting/smelting process of copper and zinc concentrates will cause the mercury in concentrate to evaporate into flue gas, most gas eventually enter waste acid its ionic form. A highly efficient removal agent M201 with long carbon chains loaded active functional groups can adsorb disperse fine particles for system. Through bridging, linear structure is woven a network achieve large-scale capture dispersion colloidal substances. recommended operating conditions developing deep purification technology are as follows: reagent concentration 50 g/L, 6 mL/L added solution, room temperature, mixing time 5 min, air flotation 10 ventilation rate 0.1 L/min, H2SO4 33.67 residual content 2 mg/L (the reaches 0.01 after two-stage treatment). Meanwhile, arsenic 21.9 mg/L. This study shows better separation achieves one-step removal.

Язык: Английский

Co-incorporation of nitrogen and boron into microscale zero-valent iron via mechanochemical ball-milling method improved Cr(Ⅵ) elimination: Performance and mechanism investigation DOI
Siqi Wang, Qinghua Zheng, Yunxi Liu

и другие.

Chemical Engineering Journal, Год журнала: 2025, Номер unknown, С. 160050 - 160050

Опубликована: Янв. 1, 2025

Язык: Английский

Процитировано

4

Removal of nickel ions from industrial wastewater using tms-EDTA-functionalized Ti3C2Tx: Experimental and statistical physics modeling DOI

Syed Asad Raza Kazmi,

Syed M. Husnain, Abdul Rehman Khan

и другие.

Journal of Hazardous Materials, Год журнала: 2025, Номер 490, С. 137667 - 137667

Опубликована: Фев. 22, 2025

Язык: Английский

Процитировано

1

Ecological risk evaluation of heavy metals based on hyperspectral: a case study of rice paddy soil in Xiangtan County, China DOI Creative Commons

Undrakhtsetseg Tsogtbaatar,

Lili Huo,

Le Jiao

и другие.

Environmental Monitoring and Assessment, Год журнала: 2025, Номер 197(4)

Опубликована: Март 11, 2025

Heavy metal pollution in agricultural soils pose significant risks to food safety and human health, necessitating effective monitoring assessment techniques. Recognizing characteristic spectral features is essential for accurately assessing the ecological associated with heavy pollution. To explore potential of utilizing hyperspectrum evaluate ecologial metals paddy soil, study investigated characteristics (350 ~ 2500 nm) (Cd, Pb, Cr, Cu) rice soil Xiangtan County, Hunan Province, China. Potential risk index (RI) was employed level, derivative transformations (first R′ second R″) were applied eliminate hyperspectral noise. Results identified Cd as primary pollutant followed by Cu, Cr. Serious concentrated riverine cropland areas. After applying transformations, correlation between reflectance significantly improved. The R″ transformation demonstrated highest correlations (r = 0.95) at 2046 nm high category, while exhibited strongest negative − 0.94) 2059 nm. This highlights analysis an tool estimating posed soils. findings provide valuable insights improving practices informing management strategies environments.

Язык: Английский

Процитировано

1

Fe3+/Fe2+ cycling drove novel ammonia oxidation and simultaneously removed lead, cadmium, and copper DOI

Shangzhe Qi,

Liang Xu, Junfeng Su

и другие.

Journal of Hazardous Materials, Год журнала: 2024, Номер 480, С. 136124 - 136124

Опубликована: Окт. 10, 2024

Язык: Английский

Процитировано

5

Effect of alternating wetting and drying cycles on selenium aging in three soils amended with selenate/selenite DOI

Hui Zhai,

Pornpimol Kleawsampanjai,

R. Wang

и другие.

Journal of Soils and Sediments, Год журнала: 2025, Номер unknown

Опубликована: Апрель 9, 2025

Язык: Английский

Процитировано

0

Preparation and adsorption property of a unique sodium titanate with large size hierarchical structure DOI
Yi Guo, Haiqing Li,

Xiaofeng Dong

и другие.

Inorganic Chemistry Communications, Год журнала: 2025, Номер unknown, С. 114627 - 114627

Опубликована: Май 1, 2025

Язык: Английский

Процитировано

0

Influence of the source and molecular weights on sulfathiazole/sulfadiazine binding in sedimentary dissolved organic matter DOI
Caixia Yan, Zhang Fei, Minghua Nie

и другие.

Journal of Environmental Management, Год журнала: 2025, Номер 386, С. 125795 - 125795

Опубликована: Май 17, 2025

Язык: Английский

Процитировано

0

Accumulation of selected heavy metals in a sediment sample on the example of Lake Bagry (Poland): Modelling studies DOI
A. Bielski,

Zuzanna Prus

The Science of The Total Environment, Год журнала: 2025, Номер 983, С. 179650 - 179650

Опубликована: Май 20, 2025

Язык: Английский

Процитировано

0

Understanding the impact of chemical composition and environmental factors on phosphorus species distribution in rivers: a large-scale study in Taihu Lake Basin DOI Creative Commons

Xingqi Zhu,

Xiaojing Yin, Jiang Lu

и другие.

Environmental Technology & Innovation, Год журнала: 2025, Номер unknown, С. 104114 - 104114

Опубликована: Фев. 1, 2025

Язык: Английский

Процитировано

0

Preparation and Heavy Metal Adsorption Performance of 2-Aminopyridine-Modified Sodium Alginate/Polyacrylic Acid Hydrogel DOI Creative Commons

Tingxiang Wu,

Amatjan Sawut,

Rena Simayi

и другие.

Gels, Год журнала: 2025, Номер 11(4), С. 224 - 224

Опубликована: Март 21, 2025

This study utilized the Schiff base reaction as a chemical bonding method to successfully graft 2-aminopyridine onto oxidized sodium alginate, resulting in formation of modified alginate (OSM). Subsequently, OSM/polyacrylic acid (OSM/PAA) hydrogel was synthesized via thermally initiated free radical polymerization process and evaluated an adsorbent for removal heavy metal ions from wastewater. Comprehensive characterization prepared samples performed using FT-IR, SEM, TGA. The influence temperature, pH, dosage, contact time, ion concentration on adsorption capacity OSM/PAA simulated wastewater thoroughly investigated. Additionally, detailed analysis thermodynamics, kinetics, mechanisms conducted. Experimental results indicated that at 25 °C, pH 5.0, dosage 0.4 g/L, maximum capacities Cu(II), Zn(II), Ni(II) were 367.64 mg/g, 398.4 409.83 respectively. These findings suggest by is spontaneous, heterogeneous with significant potential practical applications treatment.

Язык: Английский

Процитировано

0