4.7 Article

Triclocarban transformation and removal in sludge conditioning using chalcopyrite-triggered percarbonate treatment

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。
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)

Article Engineering, Environmental

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

Jialin Liang et al.

Summary: Efficient dewatering of sewage sludge is achieved using the combination process of chalcopyrite and sodium percarbonate (SPC). This process effectively weakens the water-holding capacity and hydrophilicity of sludge, leading to improved sludge-water separation. The chalcopyrite + SPC system generates reactive oxygen species that degrade the macromolecular extracellular polymeric substances (EPS), reduce water-holding affinity, and enhance self-flocculation and flowability. This system can be considered as an economically advantageous and environmentally friendly alternative to Fenton/Fenton-like strategies for sludge dewaterability.

CHEMICAL ENGINEERING JOURNAL (2023)

Article Engineering, Environmental

Molecular mechanism of adsorbing triclocarban by the activated sludge in wastewater treatment systems

Hao Wang et al.

Summary: The widespread use of the antimicrobial substance triclocarban (TCC) has raised concerns about its impacts on wastewater treatment systems, the environment, and human health. This study investigated the adsorption of TCC by sludge and extracellular polymeric substances (EPS) in a multistage biological process. The results showed that EPS had a higher adsorption capacity for TCC than sludge, potentially due to its loose multilayer structure and abundant functional groups. TCC also had adverse effects on the biological removal of ammonia nitrogen. Our study provides molecular-level insights into the interaction between TCC and activated sludge, and evaluates the risks associated with its presence in wastewater treatment systems through computational modeling.

CHEMICAL ENGINEERING JOURNAL (2023)

Article Engineering, Environmental

Targeted Decomplexation of Metal Complexes for Efficient Metal Recovery by Ozone/Percarbonate

Ying Chen et al.

Summary: Traditional methods are not efficient in recovering Cu from Cu(II)-EDTA wastewater and result in the formation of secondary contaminants. This study proposes an ozone/percarbonate (O3/SPC) process that can efficiently decomplex Cu(II)-EDTA and recover Cu simultaneously. The results show that the O3/SPC process achieves 100% Cu recovery with a kobs value of 0.103 min-1, compared to 81.2% recovery and a kobs value of 0.042 min-1 for the typical ·OH-based O3/H2O2 process. The O3/SPC process generates the carbonate radical anion (CO3·-) to selectively attack the amino groups of Cu(II)-EDTA, leading to the cleavage of Cu-O and Cu-N bonds.

ENVIRONMENTAL SCIENCE & TECHNOLOGY (2023)

Article Engineering, Environmental

New strategy of drinking water sludge as conditioner to enhance waste activated sludge dewaterability: Collaborative disposal

Tingting Xiao et al.

Summary: By using heated modification drinking water sludge (HDWS) as a conditioner to enhance the dewaterability of waste activated sludge (WAS) through its properties, the collaborative disposal of drinking water sludge (DWS) and waste activated sludge (WAS) can be achieved. The mechanism of HDWS+O-3 enhanced WAS dewaterability was explained through pyridine-infrared analysis and density functional theory (DFT) calculations. The discovery of HDWS+O-3 applied to effectively enhance WAS dewaterability provides an inspiring perspective on the emerging DWS and WAS co-processing disposition.

WATER RESEARCH (2023)

Article Engineering, Environmental

Efficient Degradation of Intracellular Antibiotic Resistance Genes by Photosensitized Erythrosine-Produced O-1(2)

Yi Liu et al.

Summary: In this study, it was found that erythrosine (ERY), an edible dye, can efficiently degrade intracellular antibiotic resistance genes (iARGs) by generating abundant O-1(2) under visible light. The degradation of 6 log iARGs was achieved within 40 minutes. The unique indirect oxidation of iARGs induced by O-1(2) resulted in a 3.2-fold faster degradation of intracellular ARGs compared to extracellular ARGs. Additionally, other photosensitizers with high O-1(2) yields, such as Rose Bengal and Phloxine B, also demonstrated efficient iARG degradation.

ENVIRONMENTAL SCIENCE & TECHNOLOGY (2023)

Article Engineering, Environmental

Redistribution of perfluorooctanoic acid in sludge after thermal hydrolysis: Location of protein plays a major role

Wangwang Yan et al.

Summary: This study developed a hierarchical scheme to identify the key factors contributing to the elevation of free PFOA during the thermal hydrolysis pretreatment (THP) process. The relative abundance of PFOA in the liquid phase increased during THP, while changes in pH, zeta potential, ionic condition, and specific surface area had negligible impact on PFOA redistribution. The study provides valuable insights into how sludge transformations regulate the distribution of PFCs and guide the selection of treatment processes.

WATER RESEARCH (2023)

Article Engineering, Environmental

Behavior of organic components and the migration of heavy metals during sludge dewatering by different advanced oxidation processes via optical spectroscopy and molecular fingerprint analysis

Yuwei Zhu et al.

Summary: A comparative study of different advanced oxidation processes was conducted to analyze the characteristics of organic components and migration of heavy metals in waste activated sludge. The Fe(II)-Oxone and Fe(II)-H2O2 treatments improved sludge dewaterability, while the Fe(II)-NaClO treatment decreased it. The shift of organic components and the release of heavy metals were strongly correlated with the different oxidation processes.

WATER RESEARCH (2023)

Article Engineering, Environmental

Efficacy and cytotoxicity of engineered ferromanganese-bearing sludge-derived biochar for percarbonate-induced phthalate ester degradation

Chang-Mao Hung et al.

Summary: This study utilized engineered ferromanganese-bearing sludge-derived biochar to decontaminate PAE-laden sediments, showing remarkable degradation efficiency and low cytotoxicity, providing a new strategy for freshwater sludge treatment and reutilization.

JOURNAL OF HAZARDOUS MATERIALS (2022)

Article Environmental Sciences

A comprehensive study on simultaneous enhancement of sludge dewaterability and elimination of polycyclic aromatic hydrocarbons by Fe2+ catalyzing O3 process

Yanting Dong et al.

Summary: Simultaneous removal of polycyclic aromatic hydrocarbons (PAHs) and enhancement of sludge dewaterability were achieved through oxidation of hydroxyl radicals (center dot OH) and flocculation of Fe3+ by Fe2+-catalyzing O-3 treatment. This treatment effectively released water from sludge cells and extracellular polymeric substances-bound (EPS-bound), and intensified the hydrophobicity of sludge surface. Additionally, Fe3+ generated by oxidation of Fe2+ promoted water-solids separation by agglomerating fragmented particles and neutralizing negative charge. The treatment also reduced the roughness of sludge surface. Furthermore, Fe2+-catalyzed O-3 treatment resulted in over 40% removal rate of PAHs, mitigating the environmental risks associated with PAHs.

SCIENCE OF THE TOTAL ENVIRONMENT (2022)

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)

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)

Article Agricultural Engineering

Triclocarban shifted the microbial communities and promoted the spread of antibiotic resistance genes in nitrifying granular sludge system

Zhiqi Wang et al.

Summary: TCC negatively affects the performance of nitrifying granular sludge system and the spread of ARGs. TCC suppresses the activity of ammonia-oxidizing microorganisms and decreases the abundance of Nitrospira. The removal process of TCC and bacterial communities are important factors in promoting the spread of ARGs.

BIORESOURCE TECHNOLOGY (2022)

Article Engineering, Environmental

Conductive materials supplement alters digestate dewaterability during anaerobic co-digestion of food waste and sewage sludge and promotes follow-up indigenous peroxides activation

Jialin Liang et al.

Summary: This study investigates the effect of conductive materials on the dewaterability of anaerobic co-digestion digestate. The results show that the addition of zero-valent iron (ZVI) and biochar can enhance methane production and improve the dewaterability of the digestate. Mechanism exploration suggests that the addition of ZVI and biochar changes the microbial community and reduces the hydrophilic components and protein secondary structure in extracellular polymeric substances, thereby promoting digestate dewaterability.

CHEMICAL ENGINEERING JOURNAL (2022)

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)

Article Engineering, Environmental

Environmental concentration PFOS as a light shield for lake exopolymers against photodegradation by formation of sandwiched supramolecular nanostructures

Shuyan Xu et al.

Summary: In this study, the interaction between lake EPS and PFOS of environmental concentrations was observed using AFM-IR technique for the first time. It was found that EPS could effectively trap PFOS and trigger nanoscale reassembly. The sandwiched PFOS-EPS nanostructures acted as a light shield to protect EPS from photodegradation.

WATER RESEARCH (2022)

Article Engineering, Environmental

Mass trends of parabens, triclocarban and triclosan in Arizona wastewater collected after the 2017 FDA ban on antimicrobials and during the COVID-19 pandemic

Sangeet Adhikari et al.

Summary: This study utilized wastewater-based epidemiology to investigate the use of antimicrobials during the COVID-19 pandemic. The findings indicate an overall increase in antimicrobial use, while the use of TCS and TCC decreased during the pandemic, possibly due to the FDA ban.

WATER RESEARCH (2022)

Article Engineering, Environmental

Enhanced Sludge Dewaterability via Oxone Activated by Biochar Pyrolyzed from Iron-Rich Sludge at a Low Temperature: Role of Iron Species

Keke Xiao et al.

Summary: This study demonstrates the enhanced sludge dewaterability achieved by activating oxone with biochar synthesized from low-temperature pyrolysis of iron-rich sludge. The Fe-300 biochar, which contains FeO and Fe3O4, was found to be more effective in activating oxone compared to Fe-800 biochar containing FeO, Fe3O4, and Fe0. The Fe(II)-activated oxone showed superior sludge dewatering performance over Fe0-activated oxone.

ACS ES&T ENGINEERING (2022)

Article Engineering, Environmental

Solid-Liquid Distribution of Ciprofloxacin during Sludge Dewatering after Fe(II)-Activated Peroxymonosulfate Treatment: Focusing on the Role of Dissolved Organic Components

Harald Horn et al.

Summary: This study investigated the role of dissolved organic components in the solid-liquid distribution of ciprofloxacin (CIP) during sludge dewatering by Fe(II)-activated peroxymonosulfate treatment. The results showed that dissolved organic components can affect the presence of CIP in the liquid phase by inhibiting its adsorption onto sludge and retarding its degradation in the liquid phase.

ACS ES&T ENGINEERING (2022)

Review Biotechnology & Applied Microbiology

The Role of Extracellular Polymeric Substances in Micropollutant Removal

Antonio Melo et al.

Summary: In biological wastewater treatment, microorganisms form aggregates held together by EPS, which play a crucial role in flocculation, settling, and dewatering of the aggregates. EPS can also act as a protective layer in the presence of toxic substances.

FRONTIERS IN CHEMICAL ENGINEERING (2022)

Article Engineering, Environmental

Triclosan transformation and impact on an elemental sulfur-driven sulfidogenic process

Liang Zhang et al.

Summary: This study demonstrated that the sulfur-reducing system is effective in removing organic contaminants such as triclosan through adsorption and biodegradation processes. The presence of these contaminants did not negatively impact the system performance, but did alter the composition of functional bacteria groups.

CHEMICAL ENGINEERING JOURNAL (2021)

Article Engineering, Environmental

Goethite-humic acid coprecipitate mediated Fenton-like degradation of sulfanilamide: The role of coprecipitated humic acid in accelerating Fe(III)/Fe(II) cycle and degradation efficiency

Huali Yu et al.

Summary: This study investigated the catalytic degradation of sulfanilamide using goethite and HA (Gt-HA) coprecipitates with different C:Fe molar ratios. The Gt-HA system with optimal C:Fe ratio of 0.30 showed higher efficiency in degrading sulfanilamide compared to the control Gt system, with improved H2O2 activation and center dot OH production. Additionally, the study demonstrated the potential of developing Fe-C coprecipitates as efficient catalysts in Fenton-like processes.

JOURNAL OF HAZARDOUS MATERIALS (2021)

Article Engineering, Environmental

Pyrite assisted peroxymonosulfate sludge conditioning: Uncover triclosan transformation during treatment

Jialin Liang et al.

Summary: The novel pyrite and peroxymonosulfate treatment proposed in this study improved the dewaterability of Waste Activated Sludge (WAS) and removal efficiency of Triclosan (TCS). By generating sulfate radicals and hydroxyl radicals, and inducing strong flocculation, the treatment effectively reduced sticky biopolymers in the sludge, benefiting downstream treatment processes.

JOURNAL OF HAZARDOUS MATERIALS (2021)

Article Engineering, Environmental

Fate and biodegradation characteristics of triclocarban in wastewater treatment plants and sewage sludge composting processes and risk assessment after entering the ecological environment

Guodi Zheng et al.

Summary: The study revealed that TCC has a high biodegradation rate in sludge during wastewater treatment, and composting can further enhance the degradation of TCC. The discharged wastewater into city rivers was found to be safe, indicating effective removal of TCC and reduced ecological risk through composting.

JOURNAL OF HAZARDOUS MATERIALS (2021)

Article Engineering, Environmental

Using sodium percarbonate to suppress vertically distributed filamentous cyanobacteria while maintaining the stability of microeukaryotic communities in drinking water reservoirs

Hangzhou Xu et al.

Summary: The increasing frequency and intensity of blooms of toxin-producing cyanobacteria in water sources is a growing global issue. The study demonstrates that solid sodium percarbonate can effectively eliminate cyanobacteria in a reservoir serving as a drinking water source and suppress harmful cyanobacteria growth within 36 hours.

WATER RESEARCH (2021)

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)

Article Engineering, Environmental

Contamination and risk profiles of triclosan and triclocarban in sediments from a less urbanized region in China

Zhi-Feng Chen et al.

JOURNAL OF HAZARDOUS MATERIALS (2018)

Article Engineering, Environmental

Triclocarban Influences Antibiotic Resistance and Alters Anaerobic Digester Microbial Community Structure

Daniel E. Carey et al.

ENVIRONMENTAL SCIENCE & TECHNOLOGY (2016)

Article Agricultural Engineering

Enhanced dewaterability of waste activated sludge by Fe(II)-activated peroxymonosulfate oxidation

Jun Liu et al.

BIORESOURCE TECHNOLOGY (2016)

Article Chemistry, Physical

Natural organic matter interactions with polyamide and polysulfone membranes: Formation of conditioning film

Leonardo Gutierrez et al.

COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS (2015)

Article Engineering, Environmental

Dewatering in biological wastewater treatment: A review

Morten Lykkegaard Christensen et al.

WATER RESEARCH (2015)