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

Study on the mechanism and stability of microbially induced struvite precipitation (MISP) for enhanced immobilization of uranium DOI

Yaoting Duan,

Xin Xu,

Lei Niu

и другие.

Journal of Cleaner Production, Год журнала: 2024, Номер 449, С. 141536 - 141536

Опубликована: Март 7, 2024

Язык: Английский

Процитировано

7
In‐Situ Characterization Technologies for Electrocatalytic Reduction nitrate to Ammonia on Copper‐Based Catalysts DOI

Chunhong Fu,

Jiangli Sun,

Yingying Du

и другие.

ChemCatChem, Год журнала: 2024, Номер 16(14)

Опубликована: Фев. 9, 2024

Abstract The excess nitrate (NO 3 − ) in water mainly comes from agricultural fertilization and industrial wastewater, which breaks the nitrogen balance poses a serious threat to environment human health. Driven by renewable energy, electrocatalytic NO reduction ammonia (NH (ENO RA) is an environmentally friendly sustainable technology. Due its special structure, copper (Cu) currently one of best catalysts for ENO RA, but reaction mechanism structure–activity relationships are still not clear enough. In‐situ characterization powerful tool gain insight into process. This review introduces several types in‐situ techniques such as XAS, FTIR DEMS, summarizes five pathways converting *NO key intermediate NH during RA on Cu‐based catalysts. research progress electrocatalysts recent years sorted out aspects composition catalytic mechanisms discussed with help technologies. would be provide reference methods exploring design RA.

Язык: Английский

Процитировано

6
An update on sustainabilities and challenges on the removal of ammonia from aqueous solutions: A state-of-the-art review DOI

Muyahavho Enemiah Mugwili,

F.B. Waanders, Vhahangwele Masindi

и другие.

Journal of Environmental Management, Год журнала: 2023, Номер 347, С. 119172 - 119172

Опубликована: Окт. 2, 2023

Язык: Английский

Процитировано

12
Preparation of Ceramsite Adsorbent and Its Influencing Factors on Ammonia Nitrogen Adsorption：A review DOI
You Lv, Nanyan Hu,

Shengwen Yang

и другие.

Materials Today Communications, Год журнала: 2024, Номер unknown, С. 110522 - 110522

Опубликована: Сен. 1, 2024

Язык: Английский

Процитировано

4
Integration of Bio-Enzyme-Treated Super-Wood and AIE-Based Nonwoven Fabric for Efficient Evaporating the Wastewater with High Concentration of Ammonia Nitrogen DOI Creative Commons
Qian Ding,

Bingqi Jin,

Yong‐Fei Zheng

и другие.

Nano-Micro Letters, Год журнала: 2025, Номер 17(1)

Опубликована: Март 10, 2025

Abstract The treatment of ammonia nitrogen wastewater (ANW) has garnered significant attention due to the ecology, and even biology is under increasing threat from over discharge ANW. Conventional ANW methods often encounter challenges such as complex processes, high costs secondary pollution. Considerable progress been made in employing solar-induced evaporators for treatment. However, there remain notable barriers transitioning fundamental research practical applications, including insufficient evaporation rates inadequate resistance biofouling. Herein, we propose a novel evaporator, which comprises bio-enzyme-treated wood aerogel that serves water pumping storage layer, cost-effective multi-walled carbon nanotubes coated hydrophobic/hydrophilic fibrous nonwoven mat functioning photothermal aggregation-induced emission (AIE) molecules incorporated anti-biofouling agent. resultant bioinspired evaporator demonstrates rate 12.83 kg m −2 h −1 when treating simulated containing 30 wt% NH 4 Cl 1.0 sun illumination. AIE-doped exhibits remarkable photodynamic antibacterial activity against mildew bacteria, ensuring outstanding biofouling extended periods When enhanced by natural wind irradiation, achieves an impressive exceeding 20 . This advancement represents promising viable approach effective removal wastewater.

Язык: Английский

Процитировано

0
Insight of electron transfer for chlorine mediated ammonia oxidation in a three-dimension (3D) electrode system DOI
Yucheng Liu, Jing Hou,

Haoran Sun

и другие.

Chemical Engineering Journal, Год журнала: 2024, Номер 493, С. 152318 - 152318

Опубликована: Май 23, 2024

Язык: Английский

Процитировано

2
Preparation of NaA zeolite with graphite tailings and its adsorption of ammonia nitrogen DOI Creative Commons
Jun Zhang, Zhen Jia,

Sheng Qian

и другие.

Scientific Reports, Год журнала: 2024, Номер 14(1)

Опубликована: Ноя. 16, 2024

Environmental pollution caused by the accumulation of graphite tailings (GT) is a significant global challenge. In this study, GT was utilized as raw material to synthesize NaA zeolite (GTA), with synthesis conditions optimized. The synthesized GTA characterized SEM, EDS, BET, XRD, and FTIR, its ammonia nitrogen (AN) adsorption performance investigated under varying conditions, including dosage, pH, time, temperature. optimized were an alkali melting temperature 700 °C, alkali-ore ratio 1.2:1, aging time 8 h, hydrothermal 90 liquid–solid 6:1, yielding specific surface area 36.62 m2/g. 100 mg/L AN solution at pH 7 30 exhibited capacity 13.88 mg/g within 1 h. process follows pseudo-second-order kinetic model. isotherm conforms Langmuir model, suggesting that mechanism involves uniform monolayer on surface. primarily controlled chemical rather than physical adsorption. This study provides foundation for resource utilization treatment, practical environmental implications.

Язык: Английский

Процитировано

2
Copper supported Dowex50WX8 resin utilized for the elimination of ammonia and its sustainable application for the degradation of dyes in wastewater DOI Creative Commons
Mohamed M. Khamis, Abeer S. Elsherbiny, Ibrahim A. Salem

и другие.

Scientific Reports, Год журнала: 2024, Номер 14(1)

Опубликована: Авг. 27, 2024

Abstract To obtain high efficient elimination of ammonia (NH 4 + ) from wastewater, Cu(II), Ni(II), and Co(II)) were loaded on Dowex-50WX8 resin (D-H) studied their removal efficiency towards NH aqueous solutions. The adsorption capacity Cu(II)-loaded D-H (D-Cu 2+ (q e = 95.58 mg/g) was the highest one compared with that D-Ni 57.29 D-Co 43.43 mg/g). Detailed studies focused utilizing D-Cu accomplished under various experimental conditions. pseudo-second-order kinetic model fitted well data . non-linear Langmuir best for process, producing a maximum equilibrium max 280.9 at pH 8.4, 303 K in less than 20 min. onto an exothermic spontaneous process. In sustainable step, resulting D-Cu(II)-ammine composite process displayed excellent catalytic activity degradation aniline blue (AB) methyl violet 2B (MV 2B) dyes H 2 O as eco-friendly oxidant.

Язык: Английский

Процитировано

1
Evaluation of a Combined Approach for Sulfate and Ammonia Recovery from Treated Brine Using a Simultaneous Chemical Precipitation and Electrocoagulation Processes DOI Open Access
Ameera F. Mohammad, Sabeera Haris, Aya A‐H. I. Mourad

и другие.

Sustainability, Год журнала: 2023, Номер 15(23), С. 16534 - 16534

Опубликована: Дек. 4, 2023

Soda ash (Na2CO3) is produced using the traditional Solvay process. It entails reaction of CO2 with high-salinity water in presence ammonia (NH3), which produces insoluble sodium bicarbonate (NaHCO3) and soluble ammonium chloride (NH4Cl). In current work, a newly combined approach has been developed to effectively manage removal sulfate from effluent The devised technique centers on an electrochemical coagulation process, complemented utilization calcium oxide (CaO) as buffering reagent. This innovative excels at achieving high recovery rates for both sulfate. recovered holds potential recycling, thereby contributing sustainability process by reusing its initial stages. Furthermore, ions are recuperated form sulfate, value-added product boasting various industrial applications. results gleaned this study underscore efficacy particularly when operating elevated densities higher concentrations. On other hand, demonstrates superior performance exposed moderate limited Consequently, integration stages within single, cohesive necessitates development optimization methodology cater varying operational conditions. To address need, second-order polynomial equations were formulated employed anticipate integrated approach. Four independent variables come into play: concentration, density, temperature, mixing rate. findings reveal that most these exert substantial influences rates, underscoring need careful consideration fine-tuning optimize overall maximum found reach 99.50% 96.03%, respectively, concentration 3.5 g/100 mL, density 19.95 mA/cm2, temperature 35 °C, rate 0.76 R/s. promising, also suitable recovering concentrations wastewater sources.

Язык: Английский

Процитировано

3
Combined stripping-struvite precipitation process for treating high ammonia-nitrogen wastewater generated by the craft of vanadium extraction DOI
Siqin Zhu,

Guohua Ye,

Xuanxiong Kang

и другие.

Environmental Science Water Research & Technology, Год журнала: 2023, Номер 9(11), С. 3049 - 3061

Опубликована: Янв. 1, 2023

Unlocking Sustainable Solutions! A significant achievement in high-concentration ammonia–nitrogen removal from vanadium extraction wastewater is reported through an innovative combination of stripping and struvite precipitation methods.

Язык: Английский

Процитировано

2