☆ 4.7 Article

Chalcopyrite-activated sodium percarbonate oxidation for sludge dewaterability enhancement: Synergetic roles of •OH and 1O2

CHEMICAL ENGINEERING JOURNAL (2023)

相关参考文献

注意：仅列出部分参考文献，下载原文获取全部文献信息。

Review Engineering, Environmental

Advanced oxidation processes for water purification using percarbonate: Insights into oxidation mechanisms, challenges, and enhancing strategies

Yangju Li et al.

Summary: This review focuses on the mechanisms of reactive oxygen species (ROS) evolution in typical SPC-AOPs and discusses the potential challenges and enhancing strategies in the practical applications of SPC-AOPs. The goal is to provide valuable viewpoints for the future development of SPC-AOPs for water purification.

JOURNAL OF HAZARDOUS MATERIALS (2023)

添加到收藏夹

Article Engineering, Environmental

Iron-rich digestate biochar toward sustainable peroxymonosulfate activation for efficient anaerobic digestate dewaterability

Zhihua Mo et al.

Summary: In this study, Fe-rich biochars were fabricated as peroxymonosulfate (PMS) activators for promoting digestate dewaterability. Fe-BC800 + PMS treatment showed superior results compared to Fe-BC300/Fe-BC500 + PMS treatments, with improved specific resistance to filtration reduction and water content reduction. Mechanistic results indicated that Fe-BC800 generated highly reactive oxygen species, reducing hydrophilic biopolymers and improving the flowability and dewaterability of digestate.

JOURNAL OF HAZARDOUS MATERIALS (2023)

添加到收藏夹

Article Engineering, Environmental

Application of CaO2-enhanced peroxone process to adjust waste activated sludge characteristics for dewaterability amelioration: Molecular transformation of dissolved organic matters and realized mechanism of deep-dewatering

Dongdong Ge et al.

Summary: This study investigated the impact of the CaO2-enhanced peroxone process on sludge treatment. The results showed that CaO2/O-3 treatment effectively solubilized the sludge and improved its dewaterability. Additionally, the use of PFS flocculation further enhanced the removal of organic substances in the sludge, leading to improved dewatering. These findings are important for the development of optimal sludge treatment methods.

CHEMICAL ENGINEERING JOURNAL (2022)

添加到收藏夹

Article Environmental Sciences

Oxy-fuel co-combustion dynamics of phytoremediation biomass and textile dyeing sludge: Gas-to-ash pollution abatement

Xieyuan Wu et al.

Summary: This study investigates the co-combustion characteristics of Sedum alfredii Hance biomass and textile dyeing sludge, and finds that oxy-fuel atmosphere can effectively reduce waste emissions. The research provides practical insights for sustainable waste-to-energy conversion.

SCIENCE OF THE TOTAL ENVIRONMENT (2022)

添加到收藏夹

Article Engineering, Chemical

Citric acid chelated Fe(II) catalyzed peroxidation for simultaneously improving sludge dewaterability and antibiotic resistance genes (ARGs) removal

Weijun Zhang et al.

Summary: The CA-Fenton process significantly improved sludge dewatering performance and removal of antibiotic resistance genes (ARGs). The acidification of CA enhanced permeability of the EPS cell barrier, releasing intracellular ARGs into the sludge and accelerating their degradation, while also improving sludge dewaterability by destroying the secondary structure of proteins. This study not only proposed an efficient method for traditional Fenton oxidation in sludge treatment, but also provided a mechanistic basis for understanding the CA-Fenton process and enabling the harmless disposal of sludge.

SEPARATION AND PURIFICATION TECHNOLOGY (2022)

添加到收藏夹

Article Chemistry, Physical

Heterogeneous activation of peroxymonosulfate by natural chalcopyrite for efficient remediation of groundwater polluted by aged landfill leachate

Hongxi Wang et al.

Summary: Natural chalcopyrite was used as a cost-effective and efficient activator of peroxymonosulfate for repairing groundwater contaminated by aged landfill leachate. The optimal remediation effect was achieved under specific conditions, and the mechanism of action was elucidated through various analytical methods.

APPLIED CATALYSIS B-ENVIRONMENTAL (2022)

添加到收藏夹

Article Engineering, Environmental

Iron-based advanced oxidation processes for enhancing sludge dewaterability: State of the art, challenges, and sludge reuse

Jialin Liang et al.

Summary: The article discusses the application of iron-based AOP technology in sludge dewatering processes, summarizes the factors affecting sludge dewaterability, and analyzes the mechanisms of iron-based AOPs to improve dewatering processes.

WATER RESEARCH (2022)

添加到收藏夹

Article Engineering, Environmental

A novel conditioning approach for amelioration of sludge dewaterability using activated carbon strengthening electrochemical oxidation and realized mechanism

Yanting Dong et al.

Summary: In this study, a novel method called EC/AC treatment was used to greatly improve sludge dewaterability and separation efficiency. The addition of activated carbon (AC) enhanced the electrooxidation process and strengthened the conductivity of sludge. The treatment also improved the flowability of sludge, reduced its viscosity, and decreased colloidal force and gel-like network strength. Overall, EC/AC treatment showed promising results in reducing sludge volume for cost-effective disposal.

WATER RESEARCH (2022)

添加到收藏夹

Article Engineering, Environmental

Influential mechanism of water occurrence states of waste-activated sludge: Potential linkage between water-holding capacity and molecular compositions of EPS

Boran Wu et al.

Summary: This study focuses on the variation in molecular compositions of EPS induced by •OH and its effects on the water occurrence states of waste-activated sludge (WAS). The results indicate that hydrophilic functional groups have a greater impact on the water-holding capacity of EPS. It is clarified that selectively removing hydrophilic functional groups is more effective for highly-efficient sludge conditioning approaches than improving •OH production efficiency.

WATER RESEARCH (2022)

添加到收藏夹

Article Environmental Sciences

Upgradation of sludge deep dewatering conditioners through persulfate activated by ferrous: Compatibility with sludge incineration, dewatering mechanism, ecological risks elimination and carbon emission performance

Aimin Li et al.

Summary: The use of persulfate oxidation activated by ferrous ions (Fe2+-Na2S2O8) for sludge treatment can effectively reduce resistance and increase water removal, while also reducing corrosion and ecological risks. This method shows potential for upgrading sludge dewatering conditions.

ENVIRONMENTAL RESEARCH (2022)

添加到收藏夹

Article Environmental Sciences

An electro-peroxone oxidation-Fe(III) coagulation sequential conditioning process for the enhanced waste activated sludge dewatering: Bound water release and organics multivariate change

Nannan Geng et al.

Summary: This study developed an electro-peroxone oxidation-Fe(III) coagulation sequential conditioning approach to improve the dewaterability of waste activated sludge (WAS). The results showed that under optimal conditions, this approach significantly reduced the specific resistance to filterability and capillary suction time, as well as decreased the bound water content of WAS. The physicochemical properties of WAS, including composition, functional groups, and protein secondary structure, were affected by this sequential conditioning process.

SCIENCE OF THE TOTAL ENVIRONMENT (2022)

添加到收藏夹

Article Engineering, Environmental

Influential mechanism of water occurrence states of waste-activated sludge: Over-focused significance of cell lysis to bound water reduction

Boran Wu et al.

Summary: The cell membrane structure has a significant influence on the dewatering performance of waste-activated sludge, but there is still debate on the optimal extent of cell lysis. This study used non-chemical methods such as sonication, cyclic freezing-thawing, and DMSO amendment to lyse microbial cells and found that the extent of cell lysis had limited impact on the water occurrence states of the sludge.

WATER RESEARCH (2022)

添加到收藏夹

Article Engineering, Environmental

Transforming anaerobically digested sludge into high-quality biosolids with an integrated physiochemical approach

Wenbo Yu et al.

Summary: This study proposes an optimal integrated strategy for recovery and carbon sink in anaerobically digested sludge management by considering low-valued recyclables recycling and non-recyclables reduction. Acid-elutriation effectively reduces the water content and volume of the sludge, improves its stability, and enhances the quality by removing metals. The study suggests potential opportunities for combining acid-elutriation with other treatment technologies to achieve enhanced dewatering performance.

RESOURCES CONSERVATION AND RECYCLING (2022)

添加到收藏夹

Article Engineering, Environmental

Positive feedback on dewaterability of waste-activated sludge by the conditioning process of Fe(II) catalyzing urea hydrogen peroxide

Dongbo Wang et al.

Summary: This study reports the use of Fe(II) activated Urea hydrogen peroxide (UHP) to improve the dewaterability of waste activated sludge (WAS). Fe(II)/UHP significantly improved WAS dewaterability by generating center dot OH, which attacked extracellular polymeric substances (EPSs) and cells, leading to the liberation of bound water. Fe(II)/UHP treatment also reduced heavy metals in the dewatered sludge, making it suitable for land application. The Fe(II)/UHP process is cost-effective and practical compared to other methods.

WATER RESEARCH (2022)

添加到收藏夹

Article Engineering, Environmental

Electrochemically driven Fe0-activated sulfite oxidation for enhancing sludge dewaterability

Jie Ye et al.

Summary: An electrochemically driven Fe-0-activated sulfite system was developed to sustainably release Fe2+ for dewatering waste activated sludge. The system improved dewatering performance by degrading extracellular polymeric substances, reducing the live/dead cell ratio, and increasing the permeability of sludge flocs. The thermal effect in the system accelerated the release of intracellular proteins, which could be degraded by the strong oxidizing sulfate radicals. Understanding these sulfate radical-based advanced oxidation processes is important for sludge treatment.

CHEMICAL ENGINEERING JOURNAL (2022)

添加到收藏夹

Article Engineering, Environmental

Enhanced Sludge Dewaterability by Efficient Oxidation of α-Mn2O3/Peroxymonosulfate: Analysis of the Mechanism and Evaluation of Engineering Application

An Ding et al.

Summary: The study has demonstrated the significant effect of α-Mn2O3/PMS on the degradation of EPS, leading to improved sludge dewaterability. The oxidized mechanism and pathway for generating ROS were also identified. The research highlights the potential of applying manganese oxides (MnOx)/PMS in sludge reduction and dewatering.

ACS ES&T ENGINEERING (2022)

添加到收藏夹

Article Engineering, Environmental

Pyrite catalyzed peroxydisulfate for improving dewaterability of waste activated sludge: Reaction sequence of hydrophobic/hydrophilic structures

Minjie Chen et al.

Summary: In this study, the dewaterability of waste activated sludge (WAS) was investigated using pyrite activated peroxydisulfate (PDS) conditioning, and the intrinsic mechanism was explored. The experimental results showed that the specific resistance to filtration (SRF) and sludge water content (Wc) decreased significantly with optimal pyrite and PDS dosages. Further analysis revealed that the reactive radicals generated through the reaction of pyrite/PDS destroyed the hydrophilic functional groups in the extracellular polymeric substances (EPS), leading to the release of bound water and the collapse of sludge floc structure. Additionally, the protein structure became looser, exposing the hydrophobic structures and contributing to improved sludge dewaterability.

JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING (2022)

添加到收藏夹

Article Green & Sustainable Science & Technology

Cu(III) generation and air sparging extend catalytic effectiveness of Cu2S/H2O2 from neutral to acidic condition: performance and mechanism in comparison with CuS/H2O2

Hongping He et al.

Summary: Both CuS/H2O2 and Cu2S/H2O2 show better degradation performance under close-to-neutral conditions, avoiding the need for pre-acidification. Air sparging can enhance the degradation efficiency of Cu2S/H2O2 under acidic conditions.

JOURNAL OF CLEANER PRODUCTION (2021)

添加到收藏夹

Article Engineering, Environmental

Simultaneous heavy metal removal and sludge deep dewatering with Fe(II) assisted electrooxidation technology

Shaogang Hu et al.

Summary: The hybrid sludge conditioning strategy utilizing electrooxidation and Fe(II) addition proved effective in removing heavy metals from sewage sludge and industrial sludge, while also achieving sludge dewatering and stabilization. The process resulted in significant heavy metal removal rates along with pH decrease, ORP increase, and excellent dewatering performance, as well as pathogen inactivation.

JOURNAL OF HAZARDOUS MATERIALS (2021)

添加到收藏夹

Article Engineering, Environmental

A recyclable polydopamine-functionalized reduced graphene oxide/Fe nanocomposite (PDA@Fe/rGO) for the enhanced degradation of 1,1,1-trichloroethane

Usman Farooq et al.

Summary: The polydopamine (PDA) embedded Fe/rGO nanocomposite prepared via pH-induced polymerization showed enhanced degradation of TCA in a sodium percarbonate (SPC) system, providing a more economical and stable catalyst for groundwater remediation. Through various analyses and experiments, it was confirmed that the PDA@Fe/rGO catalyst improved the degradation rate of probe compounds, validated the formation of non-toxic products, and demonstrated good recyclability over multiple cycles, making it a promising solution for TCA removal in practical applications.

CHEMICAL ENGINEERING JOURNAL (2021)

添加到收藏夹

Article Environmental Sciences

Dewaterability improvement and environmental risk mitigation of waste activated sludge using peroxymonosulfate activated by zero-valent metals: Fe0 vs. Al0

Jialin Liang et al.

Summary: The study compared the activation of peroxymonosulfate (PMS) by zero-valent iron (Fe-0) and zero-valent aluminum (Al-0) for waste activated sludge (WAS) conditioning. Fe-0/PMS treatment showed superior dewaterability of WAS and reduced operational costs compared to Al-0/PMS treatment. The study proposes a novel perspective for selecting an optimal PMS activator in sludge treatment to alleviate environmental risks.

CHEMOSPHERE (2021)

添加到收藏夹

Article Engineering, Environmental

Silicate-Enhanced Heterogeneous Flow-Through Electro-Fenton System Using Iron Oxides under Nanoconfinement

Dongli Guo et al.

Summary: A silicate-enhanced flow-through electro-Fenton system with a nanoconfined catalyst was designed and demonstrated for efficient, rapid, and selective degradation of antibiotic tetracycline. The system utilized Fe2O3 nanoparticle filled carbon nanotube filter to generate in situ H2O2 and convert it to reactive oxygen species for degradation. The presence of silicate electrolyte significantly boosted H2O2 yield and the flow-through configuration offered improved degradation kinetics compared to conventional batch reactors.

ENVIRONMENTAL SCIENCE & TECHNOLOGY (2021)

添加到收藏夹

Article Environmental Sciences

Fe(II)-activated sodium percarbonate for improving sludge dewaterability: Experimental and theoretical investigation combined with the evaluation of subsequent utilization

Xiao Ling et al.

Summary: Fe(II)-activated sodium percarbonate (SPC) is an emerging technology for enhancing the dewaterability of waste activated sludge. Acidic conditions are beneficial for sludge dewatering, while overdosing Fe(II) or SPC can have adverse effects. The oxidation/flocculation process plays a key role in improving sludge dewaterability.

SCIENCE OF THE TOTAL ENVIRONMENT (2021)

添加到收藏夹

Article Engineering, Environmental

Understanding synergistic mechanisms of ferrous iron activated sulfite oxidation and organic polymer flocculation for enhancing wastewater sludge dewaterability

Jing Ai et al.

Summary: The study utilized Fe(II)-sulfite oxidation and polyacrylamide flocculation (F/S-PAM) treatment to remove the bound water in waste activated sludge and improve sludge dewaterability. The radicals generated by F/S could decompose EPS, releasing bound water, while PAM caused re-flocculation of disintegrated sludge flocs, enhancing sludge filterability.

WATER RESEARCH (2021)

添加到收藏夹

Review Engineering, Environmental

Critical review of natural iron-based minerals used as heterogeneous catalysts in peroxide activation processes: Characteristics, applications and mechanisms

Leiduo Lai et al.

Summary: This review systematically summarizes the applications of natural iron-based materials in peroxide activation processes for pollutant degradation in wastewaters, including iron oxide minerals and iron sulfide minerals. Compared with synthetic materials, natural iron-based materials are more accessible and cheaper, holding great potential for pollutant degradation.

JOURNAL OF HAZARDOUS MATERIALS (2021)

添加到收藏夹

Review Engineering, Environmental

Elemental sulfur as electron donor and/or acceptor: Mechanisms, applications and perspectives for biological water and wastewater treatment

Liang Zhang et al.

Summary: Biochemical oxidation and reduction processes using elemental sulfur have emerged as cost-effective and attractive alternatives for water and wastewater treatment, offering benefits such as reduced operational costs, avoidance of secondary pollution, and efficient mineralization of organic matter.

WATER RESEARCH (2021)

添加到收藏夹

Article Engineering, Environmental

Quantitative determination of vivianite in sewage sludge by a phosphate extraction protocol validated by PXRD, SEM-EDS, and 31P NMR spectroscopy towards efficient vivianite recovery

Qian Wang et al.

Summary: The study modified a conventional sequential P extraction protocol to successfully distinguish and quantify vivianite-P and Fe(III)-P in sludge. Results showed varying amounts of vivianite-P in sludge from different wastewater treatment plants, with Fe-P being the dominant phosphorus fraction.

WATER RESEARCH (2021)

添加到收藏夹

Article Engineering, Environmental

Efficient degradation of sulfamethazine via activation of percarbonate by chalcopyrite

Yangju Li et al.

Summary: In this study, the novel application of chalcopyrite for sodium percarbonate activation towards sulfamethazine degradation was explored. The mechanism of SPC activation by CuFeS2 was elucidated to involve multiple reactive oxygen species processes, with hydroxyl radical playing a key role in SMT degradation.

WATER RESEARCH (2021)

添加到收藏夹

Article Engineering, Environmental

Tuning of Persulfate Activation from a Free Radical to a Nonradical Pathway through the Incorporation of Non-Redox Magnesium Oxide

Ali Jawad et al.

ENVIRONMENTAL SCIENCE & TECHNOLOGY (2020)

添加到收藏夹

Article Engineering, Environmental

Profiling of amino acids and their interactions with proteinaceous compounds for sewage sludge dewatering by Fenton oxidation treatment

Yuwei Zhu et al.

WATER RESEARCH (2020)

添加到收藏夹

Article Engineering, Environmental

Fe(II) catalyzing sodium percarbonate facilitates the dewaterability of waste activated sludge: Performance, mechanism, and implication

Yifu Li et al.

WATER RESEARCH (2020)

添加到收藏夹

Article Engineering, Environmental

Catalytic effect of silver on copper release from chalcopyrite mediated by Acidithiobacillus ferrooxidans

Baojun Yang et al.

JOURNAL OF HAZARDOUS MATERIALS (2020)

添加到收藏夹

Article Engineering, Environmental

High-level waste activated sludge dewaterability using Fenton-like process based on pretreated zero valent scrap iron as an in-situ cycle iron donator

Jialin Liang et al.

JOURNAL OF HAZARDOUS MATERIALS (2020)

添加到收藏夹

Article Engineering, Environmental

Enhancement of dewaterability and heavy metals solubilization of waste activated sludge conditioned by natural vanadium-titanium magnetite-activated peroxymonosulfate oxidation with rice husk

Changgeng Liu

CHEMICAL ENGINEERING JOURNAL (2019)

添加到收藏夹

Article Engineering, Environmental

Unravelling the influences of sewer-dosed iron salts on activated sludge properties with implications on settleability, dewaterability and sludge rheology

Sohan Shrestha et al.

WATER RESEARCH (2019)

添加到收藏夹

Article Engineering, Environmental

Understanding Electrochemically Activated Persulfate and Its Application to Ciprofloxacin Abatement

Laura W. Matzek et al.

ENVIRONMENTAL SCIENCE & TECHNOLOGY (2018)

添加到收藏夹

Article Engineering, Environmental

Variations in physical, chemical and biological properties in relation to sludge dewaterability under Fe (II) - Oxone conditioning

Keke Xiao et al.

WATER RESEARCH (2017)

添加到收藏夹

Article Engineering, Environmental

Disintegration of Waste Activated Sludge by Thermally-Activated Persulfates for Enhanced Dewaterability

Min Sik Kim et al.

ENVIRONMENTAL SCIENCE & TECHNOLOGY (2016)

添加到收藏夹

Article Engineering, Environmental

Singlet-Oxygen Generation in Alkaline Periodate Solution

Alok D. Bokare et al.

ENVIRONMENTAL SCIENCE & TECHNOLOGY (2015)

添加到收藏夹

Article Engineering, Environmental

Temperature Dependence of the Photochemical Formation of Hydroxyl Radical from Dissolved Organic Matter

Garrett McKay et al.

ENVIRONMENTAL SCIENCE & TECHNOLOGY (2015)

添加到收藏夹

Article Chemistry, Physical

Superoxide radical driving the activation of persulfate by magnetite nanoparticles: Implications for the degradation of PCBs

Guo-Dong Fang et al.

APPLIED CATALYSIS B-ENVIRONMENTAL (2013)

添加到收藏夹

Article Engineering, Environmental

Fluorescence excitation - Emission matrix regional integration to quantify spectra for dissolved organic matter

W Chen et al.

ENVIRONMENTAL SCIENCE & TECHNOLOGY (2003)

添加到收藏夹

© Peeref 2019-2024. All rights reserved.