Article
Polymer Science
Iva Curic, Davor Dolar, Josip Horvat, Katia Grgic
Summary: The influence of textile wastewater secondary effluent on the characteristics of ultrafiltration membranes was investigated, showing changes in membrane properties and the formation of fouling layers, with larger pore size membranes exhibiting a greater decrease in permeate flux during treatment.
Article
Environmental Sciences
An Ding, Zixiao Ren, Lei Hu, Rourou Zhang, Huu Hao Ngo, Dongwei Lv, Jun Nan, Guibai Li, Jun Ma
Summary: Potassium ferrate (Fe (VI)) has been found to have oxidation and coagulation/adsorption functions for mitigating ultrafiltration (UF) membrane fouling. The oxidation effect of Fe (VI) removes organic molecules with larger molecular weight, while coagulation/adsorption mainly removes smaller amounts of molecular organics. With repeated filtration cycles and increased Fe (VI) dosages, the main fouling mechanism shifts from oxidation to coagulation/adsorption.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Environmental Sciences
Xiao Liu, Renglu Chen, Zijing Wang, Wei Lin, Rourou Zhang, Shengping Yu, An Ding
Summary: This study proposes a new method of Fe(II)-activated peroxymonosulfate (PMS) coagulation and a pre-oxidation system coupled with ultrafiltration (UF) to treat secondary effluent from sewage plants. The optimal effect of organic matter removal and membrane fouling mitigation was achieved at the Fe(II)/PMS dosage of 60/60 mu M/mu M (molar ratio 1:1), and the efficiency of pretreatment methods in removing organics and mitigating membrane fouling followed the order of Fe(II)/PMS > Fe(III) > inactivated PMS. Coagulation and pre-oxidation by Fe(II)/PMS significantly reduced the clogging of membrane pores and the proportion of irreversible resistance, effectively controlling membrane fouling and improving effluent quality.
Article
Engineering, Chemical
Junling Wang, Qingguang Liu, Lei Xu, Muhammad Saboor Siddique, Wenzheng Yu
Summary: Surface water supplemented with reclaimed water can effectively alleviate water shortage. An integrated CUF-NF process was used to treat reclaimed water, and the effects of water hardness and different aluminum salts on the process were studied. Results showed that water hardness had a significant impact on the CUF-NF process, affecting membrane flux, organic matter removal, and disinfection by-product formation potential. This study provides insights into the impacts of water hardness and aluminum salts on CUF-NF processes treating surface water and contributes to the formulation of hardness standards for reclaimed water.
SEPARATION AND PURIFICATION TECHNOLOGY
(2023)
Article
Engineering, Environmental
Rodrigo Almeria Ragio, Camila Clementina Arantes, Joan Garcia, Eduardo Lucas Subtil
Summary: In this study, tannin coagulant (TANm) was compared with PACl for enhancing the filterability of UASB effluent during membrane ultrafiltration. TANm demonstrated the highest potential in improving UASB effluent filterability. Both coagulants reduced flux decay, total fouling resistance, and specific cake layer resistance. However, the greatest reduction in flux (55%) and fouling resistance (70%) was achieved with 40 mg.L-1 of TANm due to the increased presence of larger particles, facilitating their removal by cross-flow filtration. Protein and carbohydrate reduction on the membrane was observed at 25 mg.L-1 for both coagulants, with proteins having a higher influence. Fouling irreversibility increased with a strong correlation between TANm dosage and irreversibility, and complete and intermediate pore blocking were identified as the main mechanisms. The formation of complexes with proteins, an increased density of the cake layer, and the coagulants themselves as foulants were identified as the mechanisms for the fouling layer adhered to the membrane with coagulants. Economic evaluation showed that the system without coagulant had lower total cost, but the payback period indicated that the application of TANm had a shorter investment time of return due to lower CAPEX.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2023)
Article
Engineering, Environmental
Samia A. Aly, William B. Anderson, Peter M. Huck
Summary: In-line coagulation as pre-treatment to ultrafiltration (UF) improves UF performance and reduces membrane fouling. Different types and dosages of coagulants have varying effects on UF performance, with generally higher reduction of fouling achieved by increasing coagulant dosage. Ferric-based coagulants are better than aluminum-based coagulants for improving membrane performance.
WATER SCIENCE AND TECHNOLOGY
(2021)
Article
Engineering, Environmental
Ying Long, Genying Yu, Lu Dong, Yanchao Xu, Hongjun Lin, Ying Deng, Xiujia You, Lining Yang, Biao-Qiang Liao
Summary: This study investigated the effects of calcium ions and polyaluminum chloride on membrane fouling in the coagulation-ultrafiltration process, revealing synergistic effects between the two agents. By using density functional theory calculations and explaining the thermodynamic mechanisms, a theoretical explanation for such filtration behaviors was proposed.
Article
Engineering, Environmental
E. Segredo-Morales, E. Gonzalez, C. Gonzalez-Martin, L. Vera
Summary: This study assessed the effects of operating conditions on a microalgal-bacterial membrane photobioreactor (MPBR) in wastewater treatment. The results showed that selecting longer solids retention times (SRTs) was crucial for optimal community structure and process performance, as well as for minimizing membrane fouling rates.
JOURNAL OF WATER PROCESS ENGINEERING
(2022)
Article
Engineering, Environmental
Xin Tong, Zi-Wei Zhang, Yin-Hu Wu, Yuan Bai, Nozomu Ikuno, Kazuki Ishii, Hong-Ying Hu
Summary: The effects of UF pretreatment on secondary effluent water quality and its RO membrane fouling characteristics were explored. The water quality remained stable after UF treatment with different MWCO membranes, but the RO membrane flux declined. The addition of UF retentates prevented scaling and reduced crystal formation on the RO membrane.
Article
Engineering, Chemical
Min Chen, Weijie Ding, Ming Zhou, Huiqin Zhang, Chaoqi Ge, Zhaoliang Cui, Weihong Xing
Summary: The papermaking industry generates a large amount of wastewater, and membrane technology has become the predominant treatment method. A PVDF ultrafiltration membrane was utilized to treat secondary sedimentation tank effluent from a paper mill. The study identified pore blockage and cake deposition as the main fouling mechanisms, with oxygen-contained organics and metal complexes as the primary foulants. Understanding the fouling mechanism could help in finding a feasible chemical method for cleaning the fouled polymeric membrane.
CHEMICAL ENGINEERING RESEARCH & DESIGN
(2021)
Article
Engineering, Chemical
Yang Li, Bingxuan Ji, Ziyang Chen, Zhenghua Zhang
Summary: Using membrane distillation with dopamine-functionalized PTFE membranes (DA@PTFE) can effectively reduce membrane fouling caused by natural organic matter in secondary effluent, thus increasing the water production rate and stability of the MD system. The DA@PTFE membranes demonstrated improved MD performance with increased flow rate and reduced flux decay compared to pristine PTFE membranes. Additionally, the DA@PTFE membranes exhibited high water quality permeate with high rejection rates of conductivity and dissolved organic carbon. This study highlights the potential of DA@PTFE membranes for real application in reclaimed water treatment.
SEPARATION AND PURIFICATION TECHNOLOGY
(2023)
Article
Engineering, Chemical
Kunal Gupta, Shankararaman Chellam
Summary: The study found that pre-chlorination has complex effects on membrane fouling during wastewater reclamation, altering the characteristics of EfOM and leading to different fouling trends.
JOURNAL OF MEMBRANE SCIENCE
(2021)
Article
Engineering, Chemical
Yang Li, Bingxuan Ji, Ziyang Chen, Zhenghua Zhang
Summary: Secondary effluent from municipal wastewater treatment plants can be converted into reclaimed water using membrane distillation (MD), providing a potential solution to the global water crisis. Researchers have developed a novel surface-modified PTFE membrane to overcome membrane fouling and improve the performance of MD systems. This study demonstrates the feasibility of using the Tyr/PDA@PTFE membrane for effective treatment of secondary effluent and production of reclaimed water.
JOURNAL OF MEMBRANE SCIENCE
(2023)
Article
Green & Sustainable Science & Technology
Chang-wei He, Hui Wang, Luo-chun Wang, Zi-yang Lou, Li Bai, Hai-feng Zong, Zhen Zhou
Summary: Reducing the generation of organic humic acid and calcium-magnesium precipitates, identified as the main pollutants causing fouling in nanofiltration, was found to be crucial in decreasing membrane fouling. The use of PAC was shown to be efficient in reducing colloids and inorganic matter, with a COD removal rate of 55.1% under optimal conditions, such as a pH of 5.0 and a PAC dosage of 100 mg/L.
Article
Engineering, Environmental
Conghui He, Kaijun Wang, Wenchao Wang, Kuo Fang
Summary: Membrane-based technology is preferred for municipal wastewater treatment due to its high organic retention capacity and space-saving characteristics. However, further understanding of fouling mechanisms is needed. This study investigates fouling characteristics and anti-fouling mechanisms in membrane-based primary treatment. The differences between microfiltration (MF) and ultrafiltration (UF) are also discussed.
JOURNAL OF WATER PROCESS ENGINEERING
(2023)
Article
Environmental Sciences
Jinchuan Lian, Xiaoxiang Cheng, Xuewu Zhu, Xinsheng Luo, Jingtao Xu, Fengxun Tan, Daoji Wu, Heng Liang
Summary: In this study, ferrate (Fe(VI)) and calcium sulfite (CaSO3) were combined to improve ultrafiltration (UF) performance in surface water treatment. The combination of Fe(VI) and CaSO3 generated various active species, effectively eliminating fluorescent components. Dissolved organic carbon and UV254 were significantly reduced with Fe(VI)/CaSO3 = 0.05/0.15 mM. After UF, the removal rate for these parameters were further improved. The UF stage also resulted in reduced fouling and improved membrane performance.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Engineering, Environmental
Weichen Zeng, Han Zhang, Rui Wu, Luming Liu, Guibai Li, Heng Liang
Summary: This study focused on the preparation, characterization, and sulfamethoxazole (SMX) removal performance of a SnO2-coated reactive electrochemical membrane (REM). The REM, fabricated by loading SnO2 on a reduced TiO2 nanotube arrays (RTNA)-based Ti membrane (TM), showed improved SMX removal efficiency in flow-through mode compared to batch mode. The presence of Sb as a dopant in SnO2 enhanced the electrocatalytic activity, leading to lower energy consumption compared to Bi-doped SnO2. The TM/RTNA/ATO demonstrated stability and durability in multi-cycle and accelerated lifetime tests, making it promising for water treatment applications.
JOURNAL OF HAZARDOUS MATERIALS
(2023)
Article
Engineering, Environmental
Haiqing Chang, Naiming Liu, Fangshu Qu, Xiaoxiang Cheng, Zhiwei Zhou, Ying Liang, Ying Yu, Heng Liang
Summary: This study evaluated the alleviation of membrane fouling for the treatment of shale gas produced water (SGPW) using sodium percarbonate oxidation and aluminum sulfate coagulation. The results showed that the combination of oxidation and coagulation effectively reduced turbidity, UV254, and DOC, as well as fluorescent organics in the SGPW samples. The normalized fluxes were significantly improved compared to the raw SGPW, indicating the potential of this combined pretreatment process in controlling membrane fouling.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Environmental Sciences
Wenxin Song, Zhimin Gao, Fengxun Tan, Xiaoxiang Cheng, Tao Yang, Daoji Wu, Jingxin Yang, Heng Liang
Summary: The combination of calcium sulfite oxidation and ultrafiltration effectively removes algal pollutants, reduces membrane fouling, and improves membrane filter flux.
Article
Engineering, Chemical
Yanrui Wang, Hailin Chang, Shu Jiang, Jialong Chen, Jinlong Wang, Heng Liang, Guibai Li, Xiaobin Tang
Summary: The interfacial polymerization process between piperazine (PIP) and trimesoyl chloride (TMC) was effectively regulated using a weak-polar organic solvent of ethyl formate (EF) to fabricate polyamide (PA) nanofiltration (NF) membranes with high ion selectivity and water permeability. Molecular dynamics (MD) simulation revealed that EF involvement reduced interfacial tension and facilitated the diffusion of amine monomers into the organic phase, resulting in a PA film with higher crosslinking degree. The optimized PA NF membranes exhibited efficient rejection for divalent anions and cations, and high mono/divalent ion selectivity at sub-angstrom size.
JOURNAL OF MEMBRANE SCIENCE
(2023)
Article
Engineering, Chemical
Zihan Liu, Junwen Ding, Shirong Li, Longfeng Hu, Heng Liang, Langming Bai
Summary: This study proposes a strategy for designing graphene oxide (GO) composite membranes for dye/salt separation in textile wastewater. By incorporating polyaniline (PANI) particles and using alkali treatment, the membrane shows higher flux and rejection rates compared to GO membrane, making it an effective solution for desalination of textile wastewater.
JOURNAL OF MEMBRANE SCIENCE
(2023)
Article
Engineering, Chemical
Zihui Wang, Langming Bai, Jinlong Wang, Heng Liang, Guibai Li
Summary: In this study, a photo-assisted crosslinked NF membrane with a regulated interlaced stripe surface morphology was fabricated. The optimal membrane with AMPS molecules carrying sulfonyl groups crosslinked in the PA network showed improved water permeability, fouling resistance, and chlorine tolerance.
JOURNAL OF MEMBRANE SCIENCE
(2023)
Article
Engineering, Chemical
Weijia Gong, Feng Wang, Jinlong Wang, Mengmeng Jiang, Xiaobin Tang, Yu Tian, Heng Liang
Summary: Traditional Fenton showed good degradation performance in treating NF concentrates, but the use of acid and alkali agents posed environmental risks. By optimizing the conditions, traditional Fenton improved specific UF flux. In addition, the electro-controlled membrane coupling Fenton process was proposed, which further enhanced the treatment efficiency.
SEPARATION AND PURIFICATION TECHNOLOGY
(2023)
Article
Engineering, Chemical
Zi Wang, Rui Zhao, Heng Liang, Guibai Li, Langming Bai
Summary: Modified thin-film nanocomposite (TFN) membranes were constructed by incorporating molybdenum disulfide (MoS2) nanosheets into the polyamide layer or as an interlayer, addressing the trade-off effect and membrane fouling challenges in brackish water desalination. The modified membranes exhibited improved separation performance and antifouling property while maintaining salt rejection and permeability.
SEPARATION AND PURIFICATION TECHNOLOGY
(2023)
Article
Engineering, Chemical
Jiaxuan Yan, Langming Bai, Jing Zhao, Yatao Liu, Hesong Wang, Han Zhang, Guibai Li, Heng Liang
Summary: In order to control the ultrafiltration membrane fouling caused by secondary effluent, cobalt oxide loaded activated carbon (CoOx-PAC) activating peroxymonosulfate (PMS) was used as a pretreatment. The degradation of natural organic matter (NOM) and the mitigation performance of membrane fouling for the CoOx-PAC/PMS pretreatment were investigated. The results showed that the CoOx-PAC/PMS pretreatment had excellent degradation on NOM and significantly improved the specific flux, reducing both reversible and irreversible membrane fouling resistance.
SEPARATION AND PURIFICATION TECHNOLOGY
(2023)
Article
Engineering, Chemical
Lu Zhao, Liang Liu, Xiao-Feng Bai, Ai-Yong Zhang, Shu-Chuan Peng, Chi Zhang, Hai-Hong Niu, Heng Liang
Summary: This study investigates the synergistic effect between defective sulfur vacancy and metallic 1T phase in Fenton-like catalysis on two-dimensional MoS2. Sulfur-defected 1T-MoS2 catalysts were prepared and exhibited superior catalytic performance in PMS activation and pollutant degradation. The accelerated electron transfer within the metallic 1T phase contributes to the activation of PMS and pollutant degradation on the defective sulfur vacancies.
SEPARATION AND PURIFICATION TECHNOLOGY
(2023)
Article
Engineering, Chemical
Jinlong Wang, Jian Jiao, Jianlei Duan, Chuandong Wu, Jiaxuan Yang, Jing Zhao, Hesong Wang, Yu Tian, Guibai Li, Heng Liang
Summary: A two-step ion exchange membrane electrolysis process was designed for the recovery of divalent cations and sulfate from nanofiltration concentrates, and the removal performance and membrane fouling mechanism were investigated.
SEPARATION AND PURIFICATION TECHNOLOGY
(2024)
Article
Engineering, Environmental
Boyan Xu, Xiaohui Lu, Yuyao Fu, Liyue Diao, Heng Liang, Sungwoo Bae, How Yong Ng, Jun Ma
Summary: Marine harmful algae bloom (HAB) poses a threat to desalination plants worldwide. This study proposes a new pretreatment technology using ferrous iron/peroxymonosulfate (Fe2+/PMS) for seawater reverse osmosis (SWRO) under HAB. Fe2+/PMS achieved improved flocculation and removal of algal cells, turbidity, and algal organics matters (AOMs). The seawater matrix enhanced the generation of high-valent iron (FeO2+), leading to improved coagulation efficiency. Fe2+/PMS also resulted in reduced membrane fouling and lower operational cost compared to conventional coagulation techniques. This technology shows promise for high-performance and low-cost pretreatment for seawater desalination plants under HAB conditions.
Article
Engineering, Environmental
Han Zhang, Weijia Gong, Ying Xue, Weichen Zeng, Langming Bai, Guibai Li, Heng Liang, How Yong Ng
Summary: Simulated-sunlight assisted MABR (L-MABR) can enhance the removal efficiency of sulfamethoxazole (SMX) and reduce the production of antibiotic resistance genes (ARGs). Photolysis dominates the SMX removal in L-MABR, with the help of ultraviolet (UV) and reactive oxygen species (ROS) to accelerate the degradation process of SMX.
Review
Engineering, Chemical
Yingyuan Zhu, Haiqing Chang, Zhongsen Yan, Caihong Liu, Ying Liang, Fangshu Qu, Heng Liang, Radisav D. Vidic
Summary: This comprehensive review summarizes the practical applications and mass transfer models of ammonia recovery from wastewater using membrane distillation and membrane contactor technologies. The review found that the operating conditions played a significant role in ammonia removal, while the characteristics of the feed and permeate solutions had a relatively smaller impact. The characteristics of the membrane and devices were of great interest in research.
SEPARATION AND PURIFICATION TECHNOLOGY
(2024)
Article
Environmental Sciences
Muqiu Hu, Xin Zhao, Jinghan Gu, Lulu Qian, Zhiqing Wang, Yuanyuan Nie, Xiaoyu Han, Long An, Haiqiang Jiang
Summary: Due to its simple process, environmental friendliness, and low operating costs, biometallurgy has become a popular technology for metals recovering from low-grade ores and tailings. An optimized agar was used to isolate and grow functional bacteria, resulting in the successful isolation of six functional stains. These strains were further tested for their ability to leach metals from polymetallic sulfide tailings, with significant improvements observed when the strains were mixed together. The selection of leaching process should be based on tailings composition and target metals.
ENVIRONMENTAL RESEARCH
(2024)
Review
Environmental Sciences
Saqib Hassan, Aswin Thacharodi, Anshu Priya, R. Meenatchi, Thanushree A. Hegde, R. Thangamani, Ht Nguyen, Arivalagan Pugazhendhi
Summary: An Endocrine Disrupting Chemical (EDC) is a compound that disrupts the function of the endocrine system and is found in the environment. EDCs, such as Bisphenol A and pesticides, have been shown to have negative effects on the female reproductive system. Understanding the relationship between EDCs and women's health is crucial for developing strategies to protect reproductive health and informing public policy decisions.
ENVIRONMENTAL RESEARCH
(2024)
Article
Environmental Sciences
Lichang Zhou, Zhaoling Li, Boyi Cheng, Jinqi Jiang, Xinqi Bi, Zongping Wang, Guanghao Chen, Gang Guo
Summary: Thiosulfate can promote sulfur-mediated bacterial activity, inhibit glycogen accumulating organisms, and enhance denitrification efficiency. After the carbon source is reduced, the competitive ability of glycogen accumulating organisms increases, resulting in reduced sulfate reduction.
ENVIRONMENTAL RESEARCH
(2024)
Article
Environmental Sciences
Claire E. Campbell, Devyn L. Cotter, Katherine L. Bottenhorn, Elisabeth Burnor, Hedyeh Ahmadi, W. James Gauderman, Carlos Cardenas-Iniguez, Daniel Hackman, Rob McConnell, Kiros Berhane, Joel Schwartz, Jiu-Chiuan Chen, Megan M. Herting
Summary: Recent studies have found a connection between air pollution and increased risk for behavioral problems during development. However, more longitudinal studies are needed to investigate how exposure during the transition to adolescence may affect emotional behaviors.
ENVIRONMENTAL RESEARCH
(2024)
Article
Environmental Sciences
Jing-hong Liang, Ru-yu Yang, Mei-ling Liu, Ying-qi Pu, Wen-wen Bao, Yu Zhao, Li-xin Hu, Yu-shan Zhang, Shan Huang, Nan Jiang, Xue-ya Pu, Shao-yi Huang, Guang-hui Dong, Ya-jun Chen
Summary: This study examines the association between urban Green and blue spaces (GBS) exposure and Emotion and behavior problems (EBP) in youth populations. The findings suggest that higher exposure to GBS, particularly green spaces (GS) and blue spaces (BS), is associated with a decrease in the risk of developing total difficulties in young individuals. The joint effect of GS and BS may also contribute to the decrease in EBPs.
ENVIRONMENTAL RESEARCH
(2024)
Article
Environmental Sciences
Diego Ruiz-Sobremazas, Mario Ruiz Coca, Miguel Morales-Navas, Rocio Rodulfo-Cardenas, Caridad Lopez-Granero, Maria Teresa Colomina, Cristian Perez-Fernandez, Fernando Sanchez-Santed
Summary: Air pollution is associated with a range of health issues and gestational exposure to environmental pollutants may be linked to neurodevelopmental disorders. This study investigated the effects of oral gestational exposure to particulate matter (PM) on ultrasonic vocalizations (USV). The findings suggest that this exposure may lead to social deficits and abnormal gene expression related to neurotransmitter systems. Further research is needed to better understand the effects of air pollution on neurodevelopmental disorders and the neurotransmission systems involved.
ENVIRONMENTAL RESEARCH
(2024)
Article
Environmental Sciences
Yagmur Kabakci, Sadiye Kosar, Ozgur Dogan, Fehmi Gorkem Uctug, Osman Atilla Arikan
Summary: This study investigated the effect of electrohydrolysis pretreatment on municipal solid waste. The results showed that applying electrohydrolysis pretreatment increased methane production and reduced the time required for hydrolysis, suggesting it is a promising method to improve anaerobic digestion efficiency.
ENVIRONMENTAL RESEARCH
(2024)
Article
Environmental Sciences
Chuanwu Zhao, Yaozhong Pan, Hanyi Wu, Yu Zhu
Summary: This study analyzed the impact of industrial zones on urban heat islands using remote sensing images and a novel spectral index. The research found that the contraction or expansion of industrial zones has a significant effect on land surface temperature. The results are valuable for environmental assessment and fine management of industrial cities.
ENVIRONMENTAL RESEARCH
(2024)
Article
Environmental Sciences
Bang Du, Zhongzhong Wang, Piet N. L. Lens, Xinmin Zhan, Guangxue Wu
Summary: This study investigated the performance, syntrophic relationships, microbial communities, and metabolic pathways of ethanol-fed reactors with different operational modes and solids retention times. The results showed that different microorganisms were enriched under different SRT conditions, and syntrophic bacteria related to methane production could be enriched under low SRT conditions.
ENVIRONMENTAL RESEARCH
(2024)
Article
Environmental Sciences
Gokulan Ravindiran, Sivarethinamohan Rajamanickam, Muralikrishnan Ramalingam, Gasim Hayder, Balamurugan Karupaiya Sathaiah, Madhava Krishna Reddy Gaddam, Senthil Kumar Muniasamy, Priya Arunkumar
Summary: The present study investigated the sustainable approach for wastewater treatment using waste algal blooms. The biochar produced by the marine algae Ulva reticulata was used to remove chromium, nickel, and zinc from aqueous solutions. The study examined the adsorbents' properties and stability using SEM/EDX, FTIR, and XRD. The results showed that the biochar had high removal efficiency for the toxic metals, and the packed bed column effectively removed the heavy metal ions. The Thomas and Adams-Bohart models were found to best fit the regression values, and desorption studies were conducted to understand the sorption and elution processes.
ENVIRONMENTAL RESEARCH
(2024)
Review
Environmental Sciences
Vignesh Vinayagam, Kavitha Nagarasampatti Palani, Sudha Ganesh, Siddharth Rajesh, Vedha Varshini Akula, Ramapriyan Avoodaiappan, Omkar Singh Kushwaha, Arivalagan Pugazhendhi
Summary: The presence of pollutants in water contributes to global pollution and poses significant threats to humans and wildlife. Finding effective wastewater treatment techniques is crucial for reducing pollutant accumulation in the environment. This paper highlights recent advances in the electrochemical advanced oxidation method and other processes for treating pharmaceuticals, dyes, and pesticide-polluted effluents.
ENVIRONMENTAL RESEARCH
(2024)
Article
Environmental Sciences
M. M. M. Ahmed, Kai-Yue Chen, Fang-Yu Tsao, Yi-Cheng Hsieh, Yu-Ting Liu, Min Tzou
Summary: This study investigated the sorption of citric acid onto humic acid-iron hydr(o)xide coprecipitate (HAFHCP) and the reciprocal effects of citric acid and P sorption on HAFHCP. The results showed that citric acid could increase P availability and have an impact on P sorption.
ENVIRONMENTAL RESEARCH
(2024)
Article
Environmental Sciences
Xibo Xu, Zeqiang Wang, Xiaoning Song, Wenjie Zhan, Shuting Yang
Summary: The selection of predictor variables is crucial in building a digital mapping model for potentially toxic elements (PTEs) in soil. Traditionally, spatial and spectral parameters have been used as predictor variables, but the temporal dimension is often overlooked. This study demonstrates the value of incorporating temporal indices in the model, leading to significant performance improvements. The temporal-spatial-spectral covariate combinations used in a random forest (RF) algorithm achieve satisfactory mapping accuracy and outperform other methods.
ENVIRONMENTAL RESEARCH
(2024)
Article
Environmental Sciences
Yan Pei, Xun Liu, Mengbo Cao, Zijun Wang, Hongbing Yang
Summary: Heteroatom doping can reconfigure the electronic structure of heterogeneous catalysts, leading to the development of advanced oxidation water purification materials with superior performance and stability. In this study, a series of catalysts with different elemental doping were prepared using a simple and environmentally friendly method. The S-doped NiCo2O4 catalyst showed excellent catalytic performance for the removal of Tetracycline, with significantly increased kinetic constant and high oxidation and mineralization efficiency in a wide pH range. The degradation process was dominated by non-radical oxidation pathway after S doping, and the overall process moved towards low toxicity.
ENVIRONMENTAL RESEARCH
(2024)
Article
Environmental Sciences
Srivalli Thimmarayan, Harshavardhan Mohan, Gaddapara Manasa, Karthi Natesan, Shanmugam Mahendran, Pavithra Muthukumar Sathya, Byung-Taek Oh, R. Ravi Kumar, Rangasamy Sigamani Gandhimathi, Arul Jayaprakash, Kamala-Kannan Seralathan
Summary: This study investigated the bacterial degradation of naphthalene (NPT) isolated from crude oil-contaminated soil. Bacillus sp. GN 3.4, a potential bacteria for NPT biodegradation, was isolated and the optimal conditions for NPT degradation were determined. The study suggests that Bacillus sp. GN 3.4 could potentially aid in bioremediation by eliminating NPT from the soil.
ENVIRONMENTAL RESEARCH
(2024)
