Simultaneous Recovery of Sulfate and Ammonia from Treated Brine: A Comprehensive Approach Utilizing Chemical Precipitation and Electrocoagulation DOI
Ameera F. Mohammad, Aya A‐H. I. Mourad, Ali H. Al‐Marzouqi

и другие.

Опубликована: Дек. 16, 2023

Soda ash Na 2 CO xmlns:xlink="http://www.w3.org/1999/xlink">3 ) is conventionally manufactured through the Solvay process, which involves reaction of CO2 with highly saline water in presence ammonia (NH ). This results formation insoluble sodium bicarbonate (NaHCO and soluble ammonium chloride xmlns:xlink="http://www.w3.org/1999/xlink">4 Cl. In present study, an innovative approach has been devised to efficiently address removal sulfate from effluent process. novel method utilizes electrochemical coagulation, incorporating calcium oxide (CaO) as a buffering reagent, achieve high levels recovery. The reclaimed can be recycled reintroduced into initial stage Furthermore, ions are recuperated form sulfate, value-added product diverse industrial applications. To determine influence critical operational parameters, such concentration (ranging 2 3 g/100 ml), current density (10-20 mA/cm 2 , temperature (20- 30°C, mixing rate (1–2 R/S), on combined approach, Response Surface Methodology (RSM) analysis was employed. findings revealed that under optimal conditions, 3.5 mL, 19.95 mA/cm2, 35°, 0.76 R/s, achieved remarkable 99.50% 96.03% sulfate.

Язык: Английский

Optimization of Breakpoint Chlorination Technologies for Drinking Water Treatment: a Hungarian Case Study DOI Open Access
Dóra Laky,

Souha Neguez

Periodica Polytechnica Civil Engineering, Год журнала: 2024, Номер 68(2), С. 486 - 497

Опубликована: Янв. 3, 2024

Ammonium ion is one of the major pollutants found in drinking water sources Hungary, especially deep aquifers. under oxidative conditions, ammonium can transform into nitrite ions system, posing potential health risks. In Hungary mostly biological process or breakpoint chlorination are used to eliminate from raw during treatment process. When applied, harmful by-products formed. Trihalomethanes concentrations have long been regulated therefore design and optimization technologies trihalomethane considered. However, haloacetic acids (HAA5) chlorate recently accordance with EU Directive 2020/2184. Chlorate a by-product that appears treated when sodium hypochlorite chlorination.Experiments were carried out at four Hungarian case study areas determine optimal strategy for chlorination: applying higher chlorine dosages lower contact times, times. The investigations concluded preferable dosing use longer This approach reduces chemical demand (cost-effective) has neutral effect on THMs formation. it be contains above 0.5 mg/l, may raise concerns due elevated levels water, particularly summer. Further research required expand strategy, considering not only but also concentrations.

Язык: Английский

Процитировано

0
Scalable chlorination of polypropylene for structural modification and flame retardancy as coating materials of insulation cable DOI
Sandeep Kumar,

Bimal Chopra,

Ankush Koundal

и другие.

Polymer-Plastics Technology and Materials, Год журнала: 2024, Номер 63(14), С. 1861 - 1873

Опубликована: Июнь 17, 2024

Chemical precipitation route has been demonstrated for in-situ chlorination of polypropylene and structural modification to integrate flame retardancy along with facile processing parameters, i.e. optimum melt flow index mechanical properties. Thus, obtained chlorinated (Cl-PP) was characterized optimized composition degree chlorination, chemical structure, morphology, physical properties the help infra-red spectroscopy (FT-IR), X-ray diffraction (XRD), scanning electron microscope (SEM), other standard methods. The analytical results revealed 74% chain increased molecular weight, comparable improved from V2 V0 grade on UL-94 scale due reduced heat release rate limiting oxygen 17.5 27.1 changes induced polycrystallinity. evolved features PP were explained basis synergistic interaction, crystallinity, size reduction functionality during treatments reprecipitations. Further, Cl-PP explored as coating material insulation cables electric durable

Язык: Английский

Процитировано

0
Rational desig of hierarchical defect-rich NiSe2/Se-NiCuOx heterostructures: Modulating electronic structure for exceptional ammonia oxidation performance DOI
Guang‐Lan Li, Tien‐Ching Ma, Yuhui Shi

и другие.

Chemical Engineering Journal, Год журнала: 2024, Номер unknown, С. 158096 - 158096

Опубликована: Ноя. 1, 2024

Язык: Английский

Процитировано

0
Treatment Of Wastewater Containing Ammonia Nitrogen Using Chemically Modified Carbon Felt DOI

JinSong Ri,

Mingliang Wang,

Chunlin Guo

и другие.

Опубликована: Янв. 1, 2024

Язык: Английский

Процитировано

0
Effective removal of Congo Red dye from aqueous solution using activated MgO-nanoparticles DOI Creative Commons

T.E. Rasilingwani,

Jabulani R. Gumbo, Vhahangwele Masindi

и другие.

Desalination and Water Treatment, Год журнала: 2023, Номер 300, С. 136 - 143

Опубликована: Июль 1, 2023

Herein, the removal of Congo red (CR) dye from aqueous solution using MgO nanoparticles (MgO-NPs) was reported.Batch experiments were used to fulfil objectives this study.Specifically, one-factor-at-a-time (OFAAT) mode where effect contact time, MgO-NPs dosage, and initial CR concentration appraised.Results underpinned by advanced state-ofthe-art analytical techniques.Optimum conditions observed be 30 mins mixing, 1 g 120 mg/L concentration.X-ray fluorescence confirmed that there is no change in elemental constituents raw reacted materials except for reduction alkaline generating fraction, is, MgO, embedded on nanomaterial.Furthermore, X-ray diffraction formation new phases after interaction hence confirming dissolution deposition.Fourier-transform infrared spectroscopy denoted presence 879 cm -1 band which assigned asymmetric symmetric stretching vibrations sulfonate (-SO 3 -) group CR.Microstructurally, comprised uniform flower-like microstructures with mono-dispersed surface-wide microspheres twisted nanosheets indicating deposition fractions MgO-NPs.Findings study will go a long way curtailing ecological impacts posed CR-dye different receiving environments.Future research should look into upscaling technology industries.

Язык: Английский

Процитировано

0
Simultaneous Recovery of Sulfate and Ammonia from Treated Brine: A Comprehensive Approach Utilizing Chemical Precipitation and Electrocoagulation DOI
Ameera F. Mohammad, Aya A‐H. I. Mourad, Ali H. Al‐Marzouqi

и другие.

Опубликована: Дек. 16, 2023

Soda ash Na 2 CO xmlns:xlink="http://www.w3.org/1999/xlink">3 ) is conventionally manufactured through the Solvay process, which involves reaction of CO2 with highly saline water in presence ammonia (NH ). This results formation insoluble sodium bicarbonate (NaHCO and soluble ammonium chloride xmlns:xlink="http://www.w3.org/1999/xlink">4 Cl. In present study, an innovative approach has been devised to efficiently address removal sulfate from effluent process. novel method utilizes electrochemical coagulation, incorporating calcium oxide (CaO) as a buffering reagent, achieve high levels recovery. The reclaimed can be recycled reintroduced into initial stage Furthermore, ions are recuperated form sulfate, value-added product diverse industrial applications. To determine influence critical operational parameters, such concentration (ranging 2 3 g/100 ml), current density (10-20 mA/cm 2 , temperature (20- 30°C, mixing rate (1–2 R/S), on combined approach, Response Surface Methodology (RSM) analysis was employed. findings revealed that under optimal conditions, 3.5 mL, 19.95 mA/cm2, 35°, 0.76 R/s, achieved remarkable 99.50% 96.03% sulfate.

Язык: Английский

Процитировано

0