Low-toxicity natural pyrite on electro-Fenton catalytic reaction in a wide pH range

The Science of The Total Environment, Journal Year: 2024, Volume and Issue: 950, P. 175295 - 175295

Published: Aug. 5, 2024

Language: Английский

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Intelligent Control Strategy for Coal to Ethylene Glycol Wastewater Emission Reduction based on Dynamic Simulation and Reinforcement Learning

Process Safety and Environmental Protection, Journal Year: 2024, Volume and Issue: unknown

Published: Dec. 1, 2024

Language: Английский

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Advancements of the Fluidized Bed Fenton (FBF) Technology for wastewater treatment: Mechanism, mass and heat transfer

Journal of Environmental Management, Journal Year: 2024, Volume and Issue: 362, P. 121325 - 121325

Published: June 1, 2024

Language: Английский

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Iron-Based Catalysts Derived from Iron-Containing Sludge for Enhanced Catalytic Performance of H₂S Selective Catalytic Oxidation

ACS Omega, Journal Year: 2024, Volume and Issue: 9(27), P. 29691 - 29699

Published: June 26, 2024

In this work, iron-containing sludge is used to prepare iron-based catalysts for efficient H2S selective catalytic oxidation. First, the effect of calcination temperatures on activities oxidation carried out and it can be found that S-500 calcined at 500 °C performs excellent activity. Then, performance catalyst further optimized using alkaline treatment with different concentrations NaOH solution. The results indicate S-500(2.0) treated 2 M solution has highest activity Next, various characterization methods are analyze structure physical-chemical sludge-based catalysts. N2-Brunauer–Emmett–Teller (N2-BET) X-ray photoelectron spectroscopy analyses show smallest average particle (11.17 nm), biggest ratio Sext/Smicro(17.98) bigger external specific surface area (49.09 m2·g–1), a higher proportion Fe3+ species (50.88%), adsorbed oxygen (48.07%). Meanwhile, O2-TPD CO2-TPD analysis indicates value Oads/OTotal (50.56%) (CO2)(weak+moderate) /(CO2)Total (31.41%), indicating there much more vacancies weak sites. As result, attributed its outstanding physical–chemical properties.

Language: Английский

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Fluorescence Spectrometric Analysis for Diagnosing Compositional Variations in Effluent Organic Matter by Chlorination and Ozonation

Published: Jan. 1, 2024

Language: Английский

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Unlocking the Potential: Algal Biomass Cultivation and Growth Kinetics Using Tanning Process Water

ACS Sustainable Resource Management, Journal Year: 2024, Volume and Issue: 1(8), P. 1717 - 1728

Published: July 22, 2024

Language: Английский

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Influence of residual anaerobic granular sludge (AnGS) from anaerobically digested molasses wastewater in aerobic granular sludge reactor

The Science of The Total Environment, Journal Year: 2024, Volume and Issue: 949, P. 175206 - 175206

Published: July 31, 2024

This study investigated the impact of residual anaerobic granular sludge (AnGS) from digesters treating molasses wastewater on ammonium reduction in a downstream aerobic (AGS) reactor. Two conditions were tested: raw (high AnGS concentration) and settled (low anaerobically digested wastewaters fed into AGS With introduction wastewater, enhanced nitrite accumulation at 30 % improved total inorganic nitrogen (TIN) removal 11 observed compared to 1 8 TIN with wastewater. However, adversely affected other aspects reactor performance, increasing effluent solid content decreasing soluble chemical oxygen demand efficiency 20 low condition high condition. Despite retention reactor, no significant bioaugmentation effects microbial community observed. Aerobic was consistently both conditions. The suggests that may act as nucleus for granule formation, helping maintain stability disturbed environment. offers systematic understanding subsequent process using AGS, aiding decision making treatment digestate.

Language: Английский

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Partial Nitrification Performance of Gel-Immobilized Fillers and Application to Leather Wastewater Treatment

OALib, Journal Year: 2024, Volume and Issue: 11(07), P. 1 - 13

Published: Jan. 1, 2024

In this study, gel-immobilized fillers were used to conduct partial nitrification experiments, including a small-scale experiment in the laboratory and pilot leather factory.The performance of filler for was investigated by under reactor start-up condition with low initial ammonia oxidizing bacteria (AOB) relative abundance.Then carried out application wastewater treatment.Broadening direction fillers.Provide technical parameter reference optimization basis treatment.The (SR) achieved an nitrogen oxidation rate (AOR) 27 -29 mg•(L•h) -1 nitrite accumulation (NAR) more than 94%.After 82-day shutdown period, SR recovered its continued improve.High-throughput sequencing confirmed that AOB enriched abundance 32% percentage (NOB) less 0.01%.A (PR) built using real as raw water.The experimental results showed normal affected against background average influent water quality 537 mg•L concentration 2990 chemical oxygen demand (COD).Leather organics persistently PR nitrification.The growth inhibited.Organics removal should be emphasized prior nitrification, addition advanced process is essential.

Language: Английский

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Fluorescence spectrometric analysis for diagnosing compositional variations in effluent organic matter by chlorination and ozonation

Chemosphere, Journal Year: 2024, Volume and Issue: 369, P. 143846 - 143846

Published: Dec. 1, 2024

Language: Английский

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