Article
Environmental Sciences
Subramani Abilaji, Kuppusamy Sathishkumar, Jayaraman Narenkumar, Mohamad S. Alsalhi, Sandhanasamy Devanesan, Punniyakotti Parthipan, Balakrishnan Muthuraj, Aruliah Rajasekar
Summary: Textile effluent was treated through sequential electro oxidation (EO) and photo electro oxidation (PEO) using RuO2-IrO2 coated titanium electrode as an anode and cathode, followed by biodegradation. The pre-treatment of textile effluent by photo electro oxidation for 14 h resulted in 92% decolorization. Subsequent biodegradation of the pre-treated textile effluent achieved a 90% reduction in chemical oxygen demand. Metagenomics analysis revealed the involvement of Fla-vobacterium, Dietzia, Curtobacterium, Mesorhizobium, Sphingobium, Streptococcus, Enterococcus, Prevotella, and Stenotrophomonas bacterial communities in the biodegradation of textile effluent. Therefore, the integration of sequential photo electro oxidation and biodegradation offers an efficient and eco-friendly approach for treating textile effluent.
Article
Environmental Sciences
Arumugam Arul Prakash, Kuppusamy Sathishkumar, Mohamad S. AlSalhi, Sandhanasamy Devanesan, Panagal Mani, Seralathan Kamala-Kannan, Selvaraj Vijayanand, Aruliah Rajasekar
Summary: Synthetic azo dyes used in textile industries pose significant environmental concerns when released as effluents. This study evaluated the use of photo-assisted electrooxidation (PEO) followed by biodegradation for the treatment of textile effluents. The results showed that PEO and subsequent biodegradation effectively reduced the chemical oxygen demand (COD) levels in the effluents, suggesting that this integrated approach could be an efficient and eco-friendly method for textile effluent degradation.
ENVIRONMENTAL POLLUTION
(2022)
Article
Engineering, Environmental
Deepshikha Pandey, Achlesh Daverey, Kasturi Dutta, Kusum Arunachalam
Summary: Textile industries produce wastewater with harmful azo dyes that are known to be carcinogenic and mutagenic. This study evaluates the potential use of enzyme immobilized biochar for removing azo dyes from real and simulated textile effluents. The results show that the enzyme immobilized system can achieve high removal efficiency for individual azo dyes in the simulated effluent and for one dye peak in the real effluent. The presence of metabolite in the real effluent indicates the degradation of the dye. Therefore, enzyme immobilized biochar system can be used for simultaneous adsorption and degradation of toxic azo dyes from real effluents.
JOURNAL OF WATER PROCESS ENGINEERING
(2023)
Article
Environmental Sciences
Asad Ullah Khan, Mujaddad Ur Rehman, Muhammad Zahoor, Abdul Bari Shah, Ivar Zekker
Summary: Pseudomonas aeruginosa showed the highest decolorization activity for Brown 706 dye, reaching 73.91% decolorization efficiency under optimal conditions. Metabolites formed after degradation were analyzed using UV-Vis, FTIR, and NMR techniques, identifying the presence of P-xylene as a result of bacteria catalyzing the breakdown of azo linkages.
Article
Engineering, Environmental
Roop Kishor, Diane Purchase, Ganesh Dattatraya Saratale, Luiz Fernando Romanholo Ferreira, Chaudhery Mustansar Hussain, Sikandar Mulla, Ram Naresh Bharagava
Summary: The bacterium Pseudomonas aeruginosa RKS6 isolated in this study demonstrated efficient degradation of the recalcitrant methyl orange (MO) dye, with the production of MnP enzyme and degradation products. The results indicate that RKS6 is effective in mineralization and detoxification of MO dye, making it a promising candidate for industrial wastewater treatment.
JOURNAL OF WATER PROCESS ENGINEERING
(2021)
Article
Biotechnology & Applied Microbiology
Tian Liu, Shilin Yang, Zixian Wu, Yufei Cai, Jiawei Zhou, Mingjun Liao
Summary: A flurbiprofen-degrading strain LY.1, identified as Pseudomonas aeruginosa (PA), was isolated from the Xunsi River in Wuhan City, China. LY.1 strain exhibited the ability to grow in flurbiprofen-containing medium as the sole carbon source and degrade flurbiprofen into 3-fluoro-4(1-ethylcarboxy) phenylpropionic acid (FCB). Optimal growth conditions for LY.1 strain were found to be at temperatures ranging from 25 to 40 degrees C, pH 6-8, and substrate concentrations between 100 and 800 mg/L.
ENVIRONMENTAL TECHNOLOGY & INNOVATION
(2023)
Article
Biotechnology & Applied Microbiology
Qingyun Zhang, Xuehui Xie, Dayong Xu, Ran Hong, Jiajia Wu, Xiancheng Zeng, Na Liu, Jianshe Liu
Summary: Fructose as a promising co-substrate was found to enhance the biodegradation and detoxification of refractory dye RB5 by a novel isolated Pseudomonas aeruginosa strain DDMZ1-2, leading to increased secretion and activity of extracellular azoreductase, production of more low molecular weight intermediates, and reduction of microbial toxicity and phytotoxicity in degradation metabolites.
ENVIRONMENTAL TECHNOLOGY & INNOVATION
(2021)
Article
Environmental Sciences
Shantkriti Srinivasan, Senthil Kumar Sadasivam
Summary: Both non-adapted and adapted bacteria can efficiently biodegrade azo dyes under optimized physicochemical conditions, suggesting their potential use in effluent treatment.
ENVIRONMENTAL RESEARCH
(2021)
Article
Engineering, Environmental
Panlin Wang, Jindi Zhao, Yongqiang Ruan, Xinyi Cai, Jin Li, Lihui Zhang, He Huang
Summary: Two strains of Pseudomonas aeruginosa were able to survive with polypropylene as the sole source of carbon, leading to weight loss and changes in the surface structure of PP.
JOURNAL OF POLYMERS AND THE ENVIRONMENT
(2022)
Article
Engineering, Environmental
Ninad Oke, S. Mohan
Summary: TSBAC, a novel textile sludge based activated carbon, showed superior adsorption capacity for various dyes and synthetic textile effluent. The study demonstrated that TSBAC has high potential for reuse and poses no harm to the environment.
JOURNAL OF HAZARDOUS MATERIALS
(2022)
Article
Environmental Sciences
T. S. Rejiniemon, R. Lekshmi, Hissah Abdulrahman Alodaini, Ashraf Atef Hatamleh, Rengasamy Sathya, Palaniselvam Kuppusamy, Munirah Abdullah Al-Dosary, M. Kalaiyarasi
Summary: This study screened three bacterial strains capable of degrading naphthalene (NAP) using an enrichment culture method. The identified strains were Bacillus cereus CK1, Pseudomonas aeruginosa KD4, and Enterobacter aerogenes SR6. The bacterial consortium demonstrated efficient NAP degradation under optimal conditions, highlighting its potential for removing polycyclic aromatic hydrocarbons (PAHs).
Article
Biotechnology & Applied Microbiology
Purbasha Saha, Kokati Venkata Bhaskara Rao
Summary: Textile industries release a large amount of dyestuffs in their effluents, causing serious environmental concerns. This study found that a bacterial consortium VITPBC6 can efficiently degrade multiple dye mixtures, reducing their toxicity.
Article
Multidisciplinary Sciences
Ankita Srivastava, Lalit Kumar Dangi, Sushil Kumar, Radha Rani
Summary: This study isolated and identified a bacterial strain with the potential to decolorize and degrade Reactive Black 5 (RB5). The strain, identified as Bacillus albus DD1, showed a 98% removal of RB5 within 38 hours under optimum conditions. Kinetic and thermodynamic analyses revealed that the decolorization reaction was a first order non-spontaneous reaction, and the degradation of RB5 occurred through the cleavage of the azo bond.
Article
Environmental Sciences
Arfin Imam, Sunil Kumar Suman, Praveen Singh, Bhanu Prasad Vempatapu, Deependra Tripathi, Anjan Ray, Pankaj K. Kanaujia
Summary: This study investigated the biodegradation and proteome response of Pseudomonas aeruginosa IIPIS-8 for naphthalene (NAP). The results showed that IIPIS-8 efficiently degraded NAP and involved in the degradation process through differential protein expression.
ENVIRONMENTAL RESEARCH
(2023)
Article
Microbiology
Ana Medic, Nico Huttmann, Marija Ljesevic, Yousef Risha, Maxim V. Berezovski, Zoran Minic, Ivanka Karadzic
Summary: This study examined the carbon metabolic pathways and aromatic degradation potential of the polyextremophilic Pseudomonas aeruginosa san ai under different carbon sources. It was found that P. aeruginosa san ai efficiently degrades sodium benzoate and undergoes metabolic reconfiguration when grown on benzoate compared to glucose. Additionally, this strain exhibits extremophilic characteristics and can survive in harsh conditions.
MICROBIOLOGICAL RESEARCH
(2022)
Article
Engineering, Environmental
Ardie Septian, Alam Venugopal Narendra Kumar, Annamalai Sivasankar, Jiyeon Choi, Inseong Hwang, Won Sik Shin
Summary: The colloidal activated carbon (CAC) prepared by a simple pulverization technique showed high efficiency in persulfate (PS) activation for phenol removal. The downsizing of particle size from activated carbon (AC) to CAC played a critical role in the reaction mechanism by leading to the formation of predominant superoxide radicals (O-2(center dot-)) in the PS/CAC system.
JOURNAL OF HAZARDOUS MATERIALS
(2021)
Article
Environmental Sciences
Sivasankar Annamalai, Cybelle Concepcion Futalan, Yeonghee Ahn
Summary: This study investigated the treatment of ballast water through electrochemical disinfection using a RuO2-TiO2/Ti electrode. The results showed that higher disinfection efficiency of Escherichia coli was achieved at higher NaCl concentrations and current densities.
INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH
(2022)
Article
Chemistry, Physical
Crina Calenciuc, Antia Fdez-Sanroman, Gabriela Lama, Sivasankar Annamalai, Angeles Sanroman, Marta Pazos
Summary: This review presents the current state of using Advanced Oxidation Processes (AOPs) for soil remediation. The techniques are categorized into three types depending on the decontamination process. The review highlights the achievements of these technologies and emphasizes the need for further investigation and development.
Article
Environmental Sciences
Sivasankar Annamalai, Ardie Septian, Jiyeon Choi, Won Sik Shin
Summary: The activation of persulfate (PS) with ball-milled colloidal activated carbon (CAC(BM)) is an effective method for the degradation of phenolic compounds in soil. The CAC(BM)/PS system showed outstanding degradation performance under optimal conditions and was efficient in both spiked and field-contaminated soils.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2022)
Article
Engineering, Environmental
Sivasankar Annamalai, Won Sik Shin
Summary: This study successfully explored a novel eco-friendly metal-free biochar catalyst for the degradation of the antibiotic trimethoprim in an aqueous solution, achieving high efficiency and stability.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Biochemistry & Molecular Biology
Swaroop Kumar Pandey, Renen Machlof-Cohen, Manikandan Santhanam, Anna Shteinfer-Kuzmine, Varda Shoshan-Barmatz
Summary: This study found that VDAC1 is overexpressed in patients with mesothelioma and its levels increase with disease stage, leading to low survival rates. Silencing VDAC1 expression can inhibit cell proliferation of mesothelioma cancer cells and cause metabolic reprogramming. VDAC1 silencing also has effects on modulating the tumor microenvironment and inflammation, eliminating cancer stem cells, and inducing cell differentiation.
Article
Environmental Sciences
Sivasankar Annamalai, Venkatesan Muthukumar, Manal M. Alkhulaifi
Summary: As one of the leading industries globally, the textile industry has been causing significant environmental problems by consuming large quantities of groundwater and discharging dye-contaminated effluents. This study investigated the decolorization and degradation of synthetic toxic dye using an electro-biological method. The results showed that the combination of electrooxidation and biodegradation enhanced the mineralization of the dye solutions. The highest removal percentage was achieved at a dye concentration of 100 mg/L, with relatively low energy consumption and cost.
ENVIRONMENTAL MONITORING AND ASSESSMENT
(2023)
Article
Environmental Sciences
S. Vishali, P. Mullai, Shahid Mahboob, K. Al-Ghanim, Annamalai Sivasankar
Summary: This study evaluated the removal potential of three bio-coagulants on organic and inorganic contaminants from wastewater in the Imitation Paint Industry, and investigated their removal mechanism using kinetic models and adsorption isotherms. The results showed that these bio-coagulants exhibited good affinity and adsorption capacity towards pollutants, making them suitable for practical wastewater treatment systems.
ENVIRONMENTAL RESEARCH
(2022)
Article
Environmental Sciences
Sivasankar Annamalai, Karthikeyan Chandrasekaran, Won Sik Shin, Maruthamuthu Sundaram, Thaj Mohammed Khaleel
Summary: This study proposes a physicochemical method for treating tannery industrial waste salt. Through the addition of sodium hydroxide and sodium carbonate, calcium and magnesium removal efficiency was improved. The recovered sodium chloride, with a purity of over 98%, can be reused as a preservative salt and in the pickling process in the tannery industry.
ENVIRONMENTAL RESEARCH
(2022)
Article
Biochemistry & Molecular Biology
Uttpal Anand, Anna Shteinfer-Kuzmine, Gal Sela, Manikandan Santhanam, Benjamin Gottschalk, Rajaa Boujemaa-Paterski, Ohad Medalia, Wolfgang F. Graier, Varda Shoshan-Barmatz
Summary: The mitochondrial protein VDAC1 plays a crucial role in regulating various cellular processes, including metabolism, apoptosis, and cell signaling. In this study, a short peptide derived from the N-terminal region of VDAC1 was designed to improve cellular stability and activity. The peptide exhibited multiple effects on cancer cells, such as apoptosis induction, autophagy, senescence, and cell adhesion. Furthermore, the peptide altered the expression of proteins associated with cell metabolism and signaling. These findings highlight the importance of VDAC1 in controlling diverse cellular functions through its interaction with other proteins.
Article
Construction & Building Technology
Karthick Subbiah, Han-Seung Lee, Taejoon Park, Sivasankar Annamalai
Summary: In this study, the corrosion status of steel rebars embedded in concrete with different cover thicknesses and exposed to a simulated marine environment was monitored using an embedded solid-state reference electrode. The results of electrochemical impedance spectroscopy confirmed the time of corrosion initiation for different concrete specimens. The relationship between free and bound chlorides were defined using the Temkin isotherm, and the time to crack initiation was predicted using the El Maaddawy model. This study successfully demonstrated the reliability of the solid-state MnO2 electrode for non-destructive monitoring of steel rebar corrosion in concrete.
CONSTRUCTION AND BUILDING MATERIALS
(2023)
Article
Environmental Sciences
Sang Hoon Lee, Sivasankar Annamalai, Won Sik Shin
Summary: This study investigates the preparation of a physically modified ball-milled activated carbon (AC(BM)) from granular activated carbon (GAC) for groundwater treatment. The results show that the colloidal stability of AC(BM) is crucial for the activation of peroxymonosulfate (PMS) and the degradation of pollutants. Compared to GAC, AC(BM) has more active sites and higher maximum adsorption capacity, leading to a significant improvement in the degradation of ibuprofen.
ENVIRONMENTAL POLLUTION
(2023)
Article
Engineering, Environmental
Md Abdullah Al Masud, Sivasankar Annamalai, Won Sik Shin
Summary: This study investigates the performance of physically modified ball-milled kelp-seaweed biochar (KBCBM) in catalyzing the degradation of CIP-contaminated soil using peroxymonosulfate (PMS) and examines the phytotoxicity of the intermediates in the treated soil. The surface characterization of the KBCBM catalyst was studied using various instrumental analyses. The CIPsoil/KBCBM/PMS system showed excellent efficiency in CIP degradation (96.06%) under specific conditions. The presence of certain anions enhanced the CIP degradation, while other anions and organic matter had negligible effects. Reactive oxygen species formation was confirmed, and a non-radical reaction pathway was identified. The KBCBM/PMS system demonstrated promising potential for the treatment of CIP-contaminated soil.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Engineering, Environmental
Sivasankar Annamalai, Won Sik Shin
Summary: Recent studies have shown that biochar derived from seaweed can effectively remove tetracycline from water bodies. The pyrolysis temperature of the biochar plays a crucial role in the degradation performance. It was found that biochar pyrolyzed at 800 degrees C could completely degrade tetracycline within 60 minutes. Furthermore, various reactive oxygen species, including hydroxyl radical, sulfate radical, and singlet oxygen, were formed in the system.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Environmental Sciences
Sivasankar Annamalai, Won Sik Shin
Summary: In this study, plain seaweed biochar (SW) and boron-doped seaweed biochar (BSW) were prepared and BSW was utilized as a catalyst to degrade organic pollutants in aqueous environments. BSW600 exhibited greater catalytic activity than SW600. The generation of reactive oxygen species (ROS) in the BSW600/PMS system was confirmed, and the percentage contribution of different ROS was assessed.
ENVIRONMENTAL POLLUTION
(2023)