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Nasershariat M, Pishvaie MR, Boozarjomehry RB, Waldherr S. A dynamic model of growth phase of bio-conversion of methane to polyhydroxybutyrate using dynamic flux balance analysis. Bioprocess Biosyst Eng 2024; 47:463-474. [PMID: 38492006 DOI: 10.1007/s00449-024-02966-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2023] [Accepted: 01/06/2024] [Indexed: 03/18/2024]
Abstract
Biological conversion of waste methane to biodegradable plastics is a way of reducing their production cost. This study addresses the computational modeling of the growth phase reactor of the process of polyhydroxybutyrate production. The model was used for investigating the effect of gas recycling and inlet gas retention time on the reactor performance. The model was run by the use of a genome-scale metabolic network of Methylocystis hirsuta in a dynamic flux balance analysis framework. The reactor has been modeled for two separate feeding scenarios: a pure methane feed and a biogas feed. The mass transfer coefficient parameter was predicted as a function of superficial gas velocities by the regression of data from published experiments. The results show an increase of removal efficiency by 38% and biomass concentration by 2.8 g/L with the increase of gas recycle ratio from 0 to 30 at the empty bed residence time of 60 min .
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Affiliation(s)
- Mohadeseh Nasershariat
- Department of Chemical and Petroleum Engineering, Sharif University of Technology, Tehran, Iran
| | - Mahmoud Reza Pishvaie
- Department of Chemical and Petroleum Engineering, Sharif University of Technology, Tehran, Iran.
| | | | - Steffen Waldherr
- Faculty of Life Sciences, Division of Molecular Systems Biology, University of Vienna, Djerassiplatz 1, 1030, Vienna, Austria
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2
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Li Q, Wu S, Liu Q, Chen S, Chen F. Spectrophotometric determination of COD based on synergistic photocatalysis redox reaction using titanium dioxide nanoparticles and phosphomolybdic heteropoly acid. Talanta 2024; 268:125327. [PMID: 37898033 DOI: 10.1016/j.talanta.2023.125327] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2023] [Revised: 10/16/2023] [Accepted: 10/19/2023] [Indexed: 10/30/2023]
Abstract
Chemical oxygen demand (COD) is one of the important indicators to measure the degree of organic pollution in water. In this work, a rapid spectrophotometric method for detection of COD was achieved based on the oxidation of organics in water by photogenerated holes or free radicals and the reduction of phosphomolybdic heteropolyacid by photogenerated electrons by using TiO2 nanoparticles as a photocatalyst. Taking potassium hydrogen phthalate as the COD standard, under the optimal conditions, the absorbance of reduced phosphomolybdic heteropoly acid was linear with COD in the range of 0.50-100 mg L -1. The detection limit for was COD detection was 0.171 mg L -1. The proposed methods was used for the determination of COD in real water samples, and the results were in general agreement with the national standard method. Compared with the direct photo initiated reduction of phosphomolybdic heteropoly acid without TiO2 nanoparticles, the photocatalytic reaction has better stability and higher efficiency.
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Affiliation(s)
- Qian Li
- Hubei Key Laboratory of Bioinorganic Chemistry & Materia Medica, 430074, Wuhan, China; Key Laboratory of Material Chemistry for Energy Conversion and Storage (HUST), Ministry of Education, 430074, Wuhan, China; School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, 430074, Wuhan, China
| | - Shu Wu
- Hubei Key Laboratory of Bioinorganic Chemistry & Materia Medica, 430074, Wuhan, China; Key Laboratory of Material Chemistry for Energy Conversion and Storage (HUST), Ministry of Education, 430074, Wuhan, China; School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, 430074, Wuhan, China
| | - Qing Liu
- Hubei Key Laboratory of Bioinorganic Chemistry & Materia Medica, 430074, Wuhan, China; Key Laboratory of Material Chemistry for Energy Conversion and Storage (HUST), Ministry of Education, 430074, Wuhan, China; School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, 430074, Wuhan, China
| | - Si Chen
- Hubei Key Laboratory of Bioinorganic Chemistry & Materia Medica, 430074, Wuhan, China; Key Laboratory of Material Chemistry for Energy Conversion and Storage (HUST), Ministry of Education, 430074, Wuhan, China; School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, 430074, Wuhan, China
| | - Fang Chen
- Hubei Key Laboratory of Bioinorganic Chemistry & Materia Medica, 430074, Wuhan, China; Key Laboratory of Material Chemistry for Energy Conversion and Storage (HUST), Ministry of Education, 430074, Wuhan, China; School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, 430074, Wuhan, China.
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3
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Shi J, Wang Y, Lu S, Wang J, Liu J. Pilot study on ceramic flat membrane bioreactor in treatment of coal chemical wastewater. CHEMOSPHERE 2024; 347:140701. [PMID: 37967674 DOI: 10.1016/j.chemosphere.2023.140701] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/14/2023] [Revised: 10/25/2023] [Accepted: 11/10/2023] [Indexed: 11/17/2023]
Abstract
Some toxic and refractory pollutants in coal chemical wastewater can penetrate the biochemical treatment systems and cause high concentrations of suspended solids in the effluent, which may obstruct the subsequent advanced treatment. In this project, a submerged ceramic plate membrane system was integrated to the last oxic corridor of an existing multistage anoxic/oxic tank. In the ceramic flat membrane bioreactor, the influent chemical oxygen demand (COD) was 102.24-178.88 mg/L, with a removal ratio of approximately 30%. The NH3-N concentration in the effluent was relatively stable with an average value of 1.76 mg/L. The turbidity of the effluent was in the range of 0.235-0.852 NTU and was stable below 1 NTU. A flux of 30 L m-2·h-1 could meet the requirements of the pilot test. A gas-water ratio of 50:1 was found optimal. When the concentration of mixed liquor suspended solids (MLSS) was >3769 mg/L, the extracellular polymeric substance in the mixed solution was utilized by microorganisms as a substrate. High MLSS decreased membrane fouling rate. NaClO backwashing can effectively remove pollutants without adversely affecting the treatment efficiency of membrane bioreactors.
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Affiliation(s)
- Jingxin Shi
- Jiangsu Key Laboratory of Atmospheric Environment Monitoring and Pollution Control, Jiangsu Collaborative Innovation Center of Atmospheric Environment and Equipment Technology, School of Environmental Science and Engineering, Nanjing University of Information Science & Technology, Nanjing, 210044, China.
| | - Yarui Wang
- Changwang School of Honors, Nanjing University of Information Science & Technology, Nanjing, 210044, China
| | - Simin Lu
- College of Environment, South China Normal University, Guangzhou, 510006, China
| | - Jiahui Wang
- Changwang School of Honors, Nanjing University of Information Science & Technology, Nanjing, 210044, China
| | - Jingchun Liu
- Shanghai Municipal Engineering Design and Research Institute (Group) Co., Ltd, Shanghai, 744000, China.
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4
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Katare AK, Tabassum A, Sharma AK, Sharma S. Treatment of pharmaceutical wastewater through activated sludge process-a critical review. ENVIRONMENTAL MONITORING AND ASSESSMENT 2023; 195:1466. [PMID: 37957309 DOI: 10.1007/s10661-023-11967-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/24/2022] [Accepted: 10/06/2023] [Indexed: 11/15/2023]
Abstract
The occurrence of pharmaceutical compounds in water is a rising issue in the environment. These drugs in the waste may be toxic to aquatic organisms and humans as they disrupt the endocrine system, cause genotoxicity, etc. Several techniques were used for the treatment of pharmaceutical wastewater, such as physical, chemical, physiochemical, and biological processes like adsorption, chemical coagulation, and activated sludge processes, but these techniques possess several merits and demerits, such as higher installation and operation costs. This technique is used to remove color and turbidity; reduce biochemical oxygen demand (BOD), chemical oxygen demand (COD), and total suspended solids (TSS) to permissible limits for reuse of effluent; and prevent diseases caused by pharmaceutical wastewater. This review focuses on the treatment of pharmaceutical wastewater containing drugs like antibiotics, depressants, and hormones, with the activated sludge process having several advantages like good quality effluent and low installation costs.
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Affiliation(s)
- Anil Kumar Katare
- Quality Management and Instrumentation Division, CSIR-Indian Institute of Integrative Medicine, Jammu, 180001, J&K, India.
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India.
| | - Aliya Tabassum
- Quality Management and Instrumentation Division, CSIR-Indian Institute of Integrative Medicine, Jammu, 180001, J&K, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India
| | - Ashok Kumar Sharma
- Department of Chemical Engineering, Ujjain Engineering College, Ujjain, Madhya Pradesh, 456001, India
| | - Sarita Sharma
- Department of Chemical Engineering, Ujjain Engineering College, Ujjain, Madhya Pradesh, 456001, India
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Li S, Wang S, Pan C, Luo Y, Liang S, Long S, Yang X, Wang B. Differences in Physiological Performance and Gut Microbiota between Deep-Sea and Coastal Aquaculture of Thachinotus Ovatus: A Metagenomic Approach. Animals (Basel) 2023; 13:3365. [PMID: 37958120 PMCID: PMC10648977 DOI: 10.3390/ani13213365] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2023] [Revised: 10/14/2023] [Accepted: 10/20/2023] [Indexed: 11/15/2023] Open
Abstract
Aquaculture has become the fastest growing sector in global agriculture. The environmental degradation, diseases, and high density of mariculture has made for an inevitable shift in mariculture production from coastal to deep-sea areas. The influence that traditional coastal and emerging deep-sea farming environments exert on aquatic growth, immunity and gut microbial flora is unclear. To address this question, we compared the growth performance, physiological indicators and intestinal microbiological differences of deep-sea and coastal aquaculture in the Guangxi Beibu Gulf of China. The results showed that the growth performance and the complement of C3 and C4 (C3, C4), superoxide dismutase (SOD), and lysozyme (LYS), these physiological and biochemical indicators in the liver, kidney, and muscle of Trachinotus ovatus (T. ovatus), showed significant differences under different rearing conditions. Metagenome sequencing analysis showed Ascomycota, Pseudomonadota, and Bacillota were the three dominant phyla, accounting for 52.98/53.32 (coastal/deep sea), 24.30/22.13, and 10.39/11.82%, respectively. Aligned against the CARD database, a total of 23/2 (coastal/deep-sea) antibiotic resistance genes were screened and grouped into 4/2 genotypes. It indicated that compared with deep-sea fish, higher biological oxygen levels (3.10 times), inorganic nitrogen (110.00 times) and labile phosphate levels (29.00 times) in coastal waters might contributed to the existence of eutrophication with antibiotic resistance. The results of the study can provide complementary data on the study of the difference between deep-sea farming and traditional coastal farming, serving as a reference to future in-depth work on the transformation of fisheries development and scientific standardization of deep-sea farming.
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Affiliation(s)
- Shuangfei Li
- Guangdong Technology Research Center for Marine Algal Bioengineering, Guangdong Key Laboratory of Plant Epigenetics, College of Life Sciences and Oceanography, Shenzhen University, Shenzhen 518060, China; (S.L.); (S.W.); (C.P.); (Y.L.); (S.L.); (S.L.)
- Shenzhen Key Laboratory of Marine Biological Resources and Ecology Environment, College of Life Sciences and Oceanography, Shenzhen University, Shenzhen 518055, China
- Longhua Innovation Institute for Biotechnology, Shenzhen University, Shenzhen 518060, China
| | - Shilin Wang
- Guangdong Technology Research Center for Marine Algal Bioengineering, Guangdong Key Laboratory of Plant Epigenetics, College of Life Sciences and Oceanography, Shenzhen University, Shenzhen 518060, China; (S.L.); (S.W.); (C.P.); (Y.L.); (S.L.); (S.L.)
- Shenzhen Key Laboratory of Marine Biological Resources and Ecology Environment, College of Life Sciences and Oceanography, Shenzhen University, Shenzhen 518055, China
- Longhua Innovation Institute for Biotechnology, Shenzhen University, Shenzhen 518060, China
| | - Cong Pan
- Guangdong Technology Research Center for Marine Algal Bioengineering, Guangdong Key Laboratory of Plant Epigenetics, College of Life Sciences and Oceanography, Shenzhen University, Shenzhen 518060, China; (S.L.); (S.W.); (C.P.); (Y.L.); (S.L.); (S.L.)
- Shenzhen Key Laboratory of Marine Biological Resources and Ecology Environment, College of Life Sciences and Oceanography, Shenzhen University, Shenzhen 518055, China
- Longhua Innovation Institute for Biotechnology, Shenzhen University, Shenzhen 518060, China
| | - Yanqing Luo
- Guangdong Technology Research Center for Marine Algal Bioengineering, Guangdong Key Laboratory of Plant Epigenetics, College of Life Sciences and Oceanography, Shenzhen University, Shenzhen 518060, China; (S.L.); (S.W.); (C.P.); (Y.L.); (S.L.); (S.L.)
- Shenzhen Key Laboratory of Marine Biological Resources and Ecology Environment, College of Life Sciences and Oceanography, Shenzhen University, Shenzhen 518055, China
- Longhua Innovation Institute for Biotechnology, Shenzhen University, Shenzhen 518060, China
| | - Shitong Liang
- Guangdong Technology Research Center for Marine Algal Bioengineering, Guangdong Key Laboratory of Plant Epigenetics, College of Life Sciences and Oceanography, Shenzhen University, Shenzhen 518060, China; (S.L.); (S.W.); (C.P.); (Y.L.); (S.L.); (S.L.)
- Shenzhen Key Laboratory of Marine Biological Resources and Ecology Environment, College of Life Sciences and Oceanography, Shenzhen University, Shenzhen 518055, China
- Longhua Innovation Institute for Biotechnology, Shenzhen University, Shenzhen 518060, China
| | - Siru Long
- Guangdong Technology Research Center for Marine Algal Bioengineering, Guangdong Key Laboratory of Plant Epigenetics, College of Life Sciences and Oceanography, Shenzhen University, Shenzhen 518060, China; (S.L.); (S.W.); (C.P.); (Y.L.); (S.L.); (S.L.)
- Shenzhen Key Laboratory of Marine Biological Resources and Ecology Environment, College of Life Sciences and Oceanography, Shenzhen University, Shenzhen 518055, China
- Longhua Innovation Institute for Biotechnology, Shenzhen University, Shenzhen 518060, China
| | - Xuewei Yang
- Guangdong Technology Research Center for Marine Algal Bioengineering, Guangdong Key Laboratory of Plant Epigenetics, College of Life Sciences and Oceanography, Shenzhen University, Shenzhen 518060, China; (S.L.); (S.W.); (C.P.); (Y.L.); (S.L.); (S.L.)
- Shenzhen Key Laboratory of Marine Biological Resources and Ecology Environment, College of Life Sciences and Oceanography, Shenzhen University, Shenzhen 518055, China
- Longhua Innovation Institute for Biotechnology, Shenzhen University, Shenzhen 518060, China
| | - Boyu Wang
- Guangdong Technology Research Center for Marine Algal Bioengineering, Guangdong Key Laboratory of Plant Epigenetics, College of Life Sciences and Oceanography, Shenzhen University, Shenzhen 518060, China; (S.L.); (S.W.); (C.P.); (Y.L.); (S.L.); (S.L.)
- Shenzhen Key Laboratory of Marine Biological Resources and Ecology Environment, College of Life Sciences and Oceanography, Shenzhen University, Shenzhen 518055, China
- Longhua Innovation Institute for Biotechnology, Shenzhen University, Shenzhen 518060, China
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6
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Liu D, Jiang X, Duan M, Yu S, Bai Y. Human and natural activities regulate organic matter transport in Chinese rivers. WATER RESEARCH 2023; 245:120622. [PMID: 37716299 DOI: 10.1016/j.watres.2023.120622] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/19/2022] [Revised: 08/26/2023] [Accepted: 09/10/2023] [Indexed: 09/18/2023]
Abstract
Rivers connect terrestrial and aquatic ecosystems and export approximately 55.47 % of the net terrestrial carbon fixation. However, due to unavailable high-frequency monitoring data, litter is known about diurnal variation in riverine carbon transport on a national scale. Based on daily measurements between March 2021 and February 2022 at 1491 stations across China, this study clarified the spatiotemporal variations in riverine organic matter indicated by chemical oxygen demand (COD). Spatially, COD content showed a spatial pattern with high values in the northwest (p < 0.05), and COD flux was determined by water discharge (84.01 %). Human activities explained 73.20 % of the spatial variations in riverine COD content; in particular, agricultural planting significantly elevated riverine COD (r = 0.73, p < 0.01). Seasonally, 95.53 % of stations showed significant seasonal variations in COD contents (p < 0.05); 69.72 % (25.81 %) were identified as Type II (III) typically had the maximum (minimum) COD in summer (autumn). Moreover, except for human activities (41.08 ± 22.94 %), natural factors also contributed 47.41 ± 24.04 % to the seasonal variations. In summer, high temperatures increased COD by promoting algal proliferation at Type II stations; however, heavy precipitation diluted COD contents at Type III stations. In these cases, seasonal measurements were essential for estimating riverine organic matter transport, especially the values measured in spring and winter. This study has significant implications for managing the aquatic environment, estimating riverine organic matter transport, and balancing the global carbon budget.
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Affiliation(s)
- Dong Liu
- Key Laboratory of Watershed Geographic Sciences, Nanjing Institute of Geography and Limnology, Chinese Academy of Sciences, Nanjing 210008, China; State Key Laboratory of Satellite Ocean Environment Dynamics, Second Institute of Oceanography, Ministry of Natural Resources, Hangzhou 310012, China; Faculty of Natural Sciences, University of Stirling, Stirling FK9 4LA, UK
| | - Xintong Jiang
- Key Laboratory of Watershed Geographic Sciences, Nanjing Institute of Geography and Limnology, Chinese Academy of Sciences, Nanjing 210008, China
| | - Mengwei Duan
- School of Transportation and Geomatics Engineering, Shenyang Jianzhu University, Shenyang 110168, China
| | - Shujie Yu
- State Key Laboratory of Satellite Ocean Environment Dynamics, Second Institute of Oceanography, Ministry of Natural Resources, Hangzhou 310012, China.
| | - Yan Bai
- State Key Laboratory of Satellite Ocean Environment Dynamics, Second Institute of Oceanography, Ministry of Natural Resources, Hangzhou 310012, China.
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7
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Nguyen DV, Nguyen HM, Bui QLN, Do TVT, Lam HH, Tran-Thuy TM, Nguyen LQ. Magnetic Activated Carbon from ZnCl 2 and FeCl 3 Coactivation of Lotus Seedpod: One-Pot Preparation, Characterization, and Catalytic Activity towards Robust Degradation of Acid Orange 10. Bioinorg Chem Appl 2023; 2023:3848456. [PMID: 37324575 PMCID: PMC10264712 DOI: 10.1155/2023/3848456] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2023] [Revised: 05/04/2023] [Accepted: 05/25/2023] [Indexed: 06/17/2023] Open
Abstract
Lotus seedpods (LSPs) are an abundant and underutilized agricultural residue discarded from lotus seed production. In this study, ZnCl2 and FeCl3 coactivation of LSP for one-pot preparation of magnetic activated carbon (MAC) was explored for the first time. X-ray diffraction (XRD) results showed that Fe3O4, Fe0, and ZnO crystals were formed in the LSP-derived carbon matrix. Notably, transmission electron microscopy (TEM) images showed that the shapes of these components consisted of not only nanoparticles but also nanowires. Fe and Zn contents in MAC determined by atomic absorption spectroscopy (AAS) were 6.89 and 3.94 wt%, respectively. Moreover, SBET and Vtotal of MAC prepared by coactivation with ZnCl2 and FeCl3 were 1080 m2/g and 0.51 cm3/g, which were much higher than those prepared by single activation with FeCl3 (274 m2/g and 0.14 cm3/g) or ZnCl2 (369 m2/g and 0.21 cm3/g). MAC was subsequently applied as an oxidation catalyst for Fenton-like degradation of acid orange 10 (AO10). As a result, 0.20 g/L MAC could partially remove AO10 (100 ppm) with an adsorption capacity of 78.4 mg/g at pH 3.0. When 350 ppm H2O2 was further added, AO10 was decolorized rapidly, nearly complete within 30 min, and 66% of the COD was removed in 120 min. The potent catalytic performance of MAC might come from the synergistic effect of Fe0 and Fe3O4 nanocrystals in the porous carbon support. MAC also demonstrated effective stability and reusability after five consecutive cycles, when total AO10 removal at 20 min of H2O2 addition slightly decreased from 93.9 ± 0.9% to 86.3 ± 0.8% and minimal iron leaching of 1.14 to 1.19 mg/L was detected. Interestingly, the MAC catalyst with a saturation magnetization of 3.6 emu/g was easily separated from the treated mixture for the next cycle. Overall, these findings demonstrate that magnetic activated carbon prepared from ZnCl2 and FeCl3 coactivation of lotus seedpod waste can be a low-cost catalyst for rapid degradation of acid orange 10.
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Affiliation(s)
- Dung Van Nguyen
- Faculty of Chemical Engineering, Ho Chi Minh City University of Technology (HCMUT), 268 Ly Thuong Kiet Street, District 10, Ho Chi Minh City, Vietnam
- Vietnam National University Ho Chi Minh City, Linh Trung Ward, Thu Duc City, Ho Chi Minh City, Vietnam
| | - Hung Minh Nguyen
- Faculty of Chemical Engineering, Ho Chi Minh City University of Technology (HCMUT), 268 Ly Thuong Kiet Street, District 10, Ho Chi Minh City, Vietnam
- Vietnam National University Ho Chi Minh City, Linh Trung Ward, Thu Duc City, Ho Chi Minh City, Vietnam
| | - Quang Le Nam Bui
- Faculty of Chemical Engineering, Ho Chi Minh City University of Technology (HCMUT), 268 Ly Thuong Kiet Street, District 10, Ho Chi Minh City, Vietnam
- Vietnam National University Ho Chi Minh City, Linh Trung Ward, Thu Duc City, Ho Chi Minh City, Vietnam
| | - Thao Vy Thanh Do
- Faculty of Chemical Engineering, Ho Chi Minh City University of Technology (HCMUT), 268 Ly Thuong Kiet Street, District 10, Ho Chi Minh City, Vietnam
- Vietnam National University Ho Chi Minh City, Linh Trung Ward, Thu Duc City, Ho Chi Minh City, Vietnam
| | - Hung Hoa Lam
- Faculty of Chemical Engineering, Ho Chi Minh City University of Technology (HCMUT), 268 Ly Thuong Kiet Street, District 10, Ho Chi Minh City, Vietnam
- Vietnam National University Ho Chi Minh City, Linh Trung Ward, Thu Duc City, Ho Chi Minh City, Vietnam
| | - Tuyet-Mai Tran-Thuy
- Faculty of Chemical Engineering, Ho Chi Minh City University of Technology (HCMUT), 268 Ly Thuong Kiet Street, District 10, Ho Chi Minh City, Vietnam
- Vietnam National University Ho Chi Minh City, Linh Trung Ward, Thu Duc City, Ho Chi Minh City, Vietnam
| | - Long Quang Nguyen
- Faculty of Chemical Engineering, Ho Chi Minh City University of Technology (HCMUT), 268 Ly Thuong Kiet Street, District 10, Ho Chi Minh City, Vietnam
- Vietnam National University Ho Chi Minh City, Linh Trung Ward, Thu Duc City, Ho Chi Minh City, Vietnam
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8
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Lambertz S, Franke M, Stelter M, Braeutigam P. Sensing of chemical oxygen demand (COD) by amperometric detection-dependence of current signal on concentration and type of organic species. ENVIRONMENTAL MONITORING AND ASSESSMENT 2023; 195:630. [PMID: 37129679 PMCID: PMC10154276 DOI: 10.1007/s10661-023-11228-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/15/2022] [Accepted: 04/06/2023] [Indexed: 05/03/2023]
Abstract
The standard method to determine chemical oxygen demand (COD) with K2Cr2O6 uses harmful chemicals, has a long analysis time, and cannot be used for on-site online monitoring. It is therefore necessary to find a fast, cheap, and harmless alternative. The amperometric determination of COD on boron-doped diamond (BDD) electrodes is a promising approach. However, to be a suitable alternative, the electrochemical method must at least be able to determine the COD of water samples independently of the contained substances. Therefore, the current signal as a function of various organic materials was investigated for the first time. It was shown that the height of the signal current depended on the type of organic matter in single-substance solutions and that this substance dependency increases with the amount of COD. Those findings could be explained by the mechanism proposed for this reaction, showing that the selectivity of the reaction depends on the ratio of the concentration of hydroxyl radicals and organic species. We give an outlook on how to improve the method in order to increase the linear working range and avoid signal variance and how to further explain the signal variance.
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Affiliation(s)
- Samira Lambertz
- Institute for Technical Chemistry and Environmental Chemistry, Friedrich Schiller University Jena, Philosophenweg 7a, 07743, Jena, Germany
- Center for Energy and Environmental Chemistry, CEEC Jena), Friedrich Schiller University Jena, Philosophenweg 7a, 07743, Jena, Germany
| | - Marcus Franke
- Institute for Technical Chemistry and Environmental Chemistry, Friedrich Schiller University Jena, Philosophenweg 7a, 07743, Jena, Germany
- Center for Energy and Environmental Chemistry, CEEC Jena), Friedrich Schiller University Jena, Philosophenweg 7a, 07743, Jena, Germany
| | - Michael Stelter
- Institute for Technical Chemistry and Environmental Chemistry, Friedrich Schiller University Jena, Philosophenweg 7a, 07743, Jena, Germany
- Center for Energy and Environmental Chemistry, CEEC Jena), Friedrich Schiller University Jena, Philosophenweg 7a, 07743, Jena, Germany
- Fraunhofer IKTS, Fraunhofer Institute for Ceramic Technologies and Systems, Michael-Faraday-Straße 1, 07629, Hermsdorf, Germany
| | - Patrick Braeutigam
- Institute for Technical Chemistry and Environmental Chemistry, Friedrich Schiller University Jena, Philosophenweg 7a, 07743, Jena, Germany.
- Center for Energy and Environmental Chemistry, CEEC Jena), Friedrich Schiller University Jena, Philosophenweg 7a, 07743, Jena, Germany.
- Fraunhofer IKTS, Fraunhofer Institute for Ceramic Technologies and Systems, Michael-Faraday-Straße 1, 07629, Hermsdorf, Germany.
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9
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Lai Y, Hao L, Dong L, Yu S, Liu J. Coating zirconium oxide-nanocomposite with humic acid for recovery of mercury and chromium in hazardous waste of chemical oxygen demand test. J Environ Sci (China) 2023; 126:40-47. [PMID: 36503767 DOI: 10.1016/j.jes.2022.04.017] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2022] [Revised: 04/12/2022] [Accepted: 04/12/2022] [Indexed: 06/17/2023]
Abstract
Hazardous waste of chemical oxygen demand (COD) test (HWCOD) is one of the most common laboratory wastewaters, containing large amounts of H2SO4 and highly toxic Cr3+ and Hg2+. Current treatment methods suffered from incomplete removal of Cr3+ and high-cost. Herein, a humic acid-coated zirconium oxide-resin nanocomposite (HA-HZO-201) was fabricated for efficient recovery of Cr3+ and Hg2+ in HWCOD. The synthesized HA-HZO-201 shows excellent tolerance to wide pH range (1-5) and high salinity (3.5 mol/L NaCl), as well as adsorption capacity for Cr3+ (37.5 mg/g) and Hg2+ (121.3 mg/g). After treating with HA-HZO-201 by using a fixed-bed adsorption procedure, the final Cr3+ and Hg2+ concentrations in HWCOD decreased to 0.28 and 0.02 mg/L, respectively. In addition, the HA-HZO-201 can be regenerated by desorption and recovery of Cr3+ and Hg2+ using HNO3 and thiourea as eluents, respectively. After 5 cycles of adsorption/desorption, the removal efficiencies still reach up to 86.0% for Cr3+ and 89.7% for Hg2+, indicating an excellent regeneration of HA-HZO-201. We hope this work open new opportunities for treatment of HWCOD with high-efficiency and low-cost.
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Affiliation(s)
- Yujian Lai
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; School of Environment, Hangzhou Institute for Advanced Study, UCAS, Hangzhou 310024, China
| | - Liteng Hao
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; China Testing & Certification International Group Co., Ltd., Beijing 100024, China; Institute of Environment and Health, Jianghan University, Wuhan 430056, China
| | - Lijie Dong
- Division of Chemical Metrology and Analytical Chemistry, National Institute of Metrology, Beijing 100029, China
| | - Sujuan Yu
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
| | - Jingfu Liu
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China; School of Environment, Hangzhou Institute for Advanced Study, UCAS, Hangzhou 310024, China; Institute of Environment and Health, Jianghan University, Wuhan 430056, China.
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10
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Aguilar-Torrejón JA, Balderas-Hernández P, Roa-Morales G, Barrera-Díaz CE, Rodríguez-Torres I, Torres-Blancas T. Relationship, importance, and development of analytical techniques: COD, BOD, and, TOC in water—An overview through time. SN APPLIED SCIENCES 2023. [DOI: 10.1007/s42452-023-05318-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/29/2023] Open
Abstract
AbstractAnalytical techniques to measure organic matter in water, such as Chemical Oxygen Demand (COD), Biochemical Oxygen Demand (BOD5), and Total Organic Carbon (TOC) are widely used. Modifications have been proposed to make them faster, more sensitive, and more environmentally friendly. The purpose of producing a review over some time is to show the changes made on the standardized methods of each of these techniques, and to highlight the relationship between them in the process of ascertaining organic matter in water. Modifications to techniques COD and BOD entail several factors that need to be considered, namely: time, miniaturization, sensitivity, use of environmentally friendly reagents. Changes to TOC are focused on detection systems. Despite the advantages obtained by the modified techniques, traditional methods continue to be widely used, in most cases due to the lack of standardization of the new methods.
Graphic Abstract
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11
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Li L, Liang T, Qiu S, Zhang Y, Qu J, Liu T, Ma F. A rapid and simplified method for evaluating the performance of fungi-algae pellets: A hierarchical analysis model. THE SCIENCE OF THE TOTAL ENVIRONMENT 2023; 860:160442. [PMID: 36435261 DOI: 10.1016/j.scitotenv.2022.160442] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/05/2022] [Revised: 11/08/2022] [Accepted: 11/19/2022] [Indexed: 06/16/2023]
Abstract
Microbial pellets technology has undergone extensive research recently and has increasingly matured, showing significant promise. However, the performance of microbial pellets cannot be predicted quickly by the current evaluating methods because they are complicated to operate, take a long time, and pose a risk to the environment. In this study, a representative microbial pellet, fungi-algae pellet, was selected as the research object. Eight evaluation parameters and four evaluation indices were chosen to construct the performance evaluation system of the fungal-algal pellets using the analytic hierarchy process (AHP) and weighting method. Combining the correlation analysis and expert opinion, we found that among the eight parameters selected, the adsorption saturation rate of mycelial pellets on algae had the most significant influence weight on the performance of fungi-algae pellet, followed by algal culture time and fungal incubation time. This research proposes and validates the Performance Evaluation Value (PEV) of fungi-algae pellet and its calculation method. We also discuss the effectiveness of this new evaluation system in saving time, cost, and emission reductions. The results of this paper enable the rapid evaluation of fungi-algae pellets and promote the better development of fungi-algae pellets technology and even other multi-microbial symbiotic pellet technologies.
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Affiliation(s)
- Lixin Li
- School of Environment and Chemical Engineering, Heilongjiang University of Science and Technology, Harbin 150022, China.
| | - Taojie Liang
- School of Environment and Chemical Engineering, Heilongjiang University of Science and Technology, Harbin 150022, China; School of Environmental Science and Engineering, Guangdong University of Technology, Guangzhou 510006, China
| | - Shan Qiu
- State Key Lab of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin 150090, China
| | - Yanlong Zhang
- Department of Environmental Science and Engineering, Nankai University Binhai College, Tianjin 300270, China
| | - Jiwei Qu
- School of Environment and Chemical Engineering, Heilongjiang University of Science and Technology, Harbin 150022, China
| | - Tiantian Liu
- School of Environment and Chemical Engineering, Heilongjiang University of Science and Technology, Harbin 150022, China
| | - Fang Ma
- State Key Lab of Urban Water Resource and Environment, Harbin Institute of Technology, Harbin 150090, China
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12
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Effective and Low-Cost Adsorption Procedure for Removing Chemical Oxygen Demand from Wastewater Using Chemically Activated Carbon Derived from Rice Husk. SEPARATIONS 2023. [DOI: 10.3390/separations10010043] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023] Open
Abstract
Wastewater treatment by adsorption onto activated carbon is effective because it has a variety of benefits. In this work, activated carbon prepared from rice husk by chemical activation using zinc chloride was utilized to reduce chemical oxygen demand from wastewater. The as-prepared activated carbon was characterized by scanning electron microscope, Fourier transform infrared spectroscopy and nitrogen adsorption/desorption analysis. The optimum conditions for maximum removal were achieved by studying the impact of various factors such as solution pH, sorbent dose, shaking time and temperature in batch mode. The results displayed that the optimum sorption conditions were achieved at pH of 3.0, sorbent dose of 0.1 g L−1, shaking time of 100 min and at room temperature (25 °C). Based on the effect of temperature, the adsorption process is exothermic in nature. The results also implied that the isothermal data might be exceedingly elucidated by the Langmuir model. The maximum removal of chemical oxygen demand by the activated carbon was 45.9 mg g−1. The kinetic studies showed that the adsorption process follows a pseudo-first order model. The findings suggested that activated carbon from rice husk may be used as inexpensive substitutes for commercial activated carbon in the treatment of wastewater for the removal of chemical oxygen demand.
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Zhang R, Li YS, Luo YX, Zhang XY, Wen R, Gao XF. A Carbon-dot Fluorescence Capillary Sensor for the Determination of Chemical Oxygen Demand. Microchem J 2023. [DOI: 10.1016/j.microc.2023.108445] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
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14
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Lv S, Li X, Wang R, Wang Y, Dong Z, Zhou T, Liu Y, Lin K, Liu L. Autochthonous sources and drought conditions drive anomalous oxygen-consuming pollution increase in a sluice-controlled reservoir in eastern China. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 841:156739. [PMID: 35716740 DOI: 10.1016/j.scitotenv.2022.156739] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/10/2022] [Revised: 06/10/2022] [Accepted: 06/12/2022] [Indexed: 06/15/2023]
Abstract
Freshwater reservoirs are an important type of inland waterbody. However, they can suffer from oxygen-consuming pollution, which can seriously threaten drinking water safety and negatively impact the health of aquatic ecosystems. Oxygen-consuming pollutants originate from both allochthonous and autochthonous sources, and have temporally and spatially heterogeneous drivers. Datanggang Reservoir, China, is located in a small agricultural watershed; it is controlled by multiple sluice gates. Anomalously high oxygen consumption indicators were observed in this reservoir in March 2021. Here, it was hypothesized that autochthonous sources were the primary drivers of oxygen-consuming pollution in the reservoir under drought conditions. Datasets of water quality, precipitation, primary productivity, and sediment were used to analyze water quality trends in the reservoir and inflow rivers, demonstrating the effects of allochthonous inputs and autochthonous pollution. No correlation was found between reservoir oxygen consumption indicators and allochthonous inputs; reservoir oxygen consumption indicators and chlorophyll-a concentration were significantly positively correlated (p < 0.05). Substantially lower precipitation and higher water temperature and pH (compared to historical levels) were also observed before the pollution event. Therefore, during this period the hydrological conditions, water temperature, pH, and other variables caused by short-term drought conditions may have facilitated phytoplankton growth in the reservoir. This contributed to a large increase in autochthonous oxygen-consuming pollutants, as reflected by the abnormally high indicators. Sediments contaminated with organic matter may also have been an important contributor. As the effects of environmental management and pollution control continue to emerge, exogenous pollutants imported from the land to reservoirs are currently effectively controlled. However, endogenous pollutants driven by a variety of factors, such as meteorology and hydrology, will likely become the main drivers of short-term changes in oxygen-consuming pollution in freshwater reservoirs in the foreseeable future.
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Affiliation(s)
- Shucong Lv
- State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing 100012, China
| | - Xinghua Li
- State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing 100012, China
| | - Rui Wang
- State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing 100012, China
| | - Yu Wang
- State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing 100012, China
| | - Zhaojun Dong
- State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing 100012, China
| | - Tianpeng Zhou
- Xiangshan Water Group Co., Ltd, Ningbo 315700, China
| | - Yunlong Liu
- State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing 100012, China
| | - Kuixuan Lin
- State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing 100012, China
| | - Lusan Liu
- State Key Laboratory of Environmental Criteria and Risk Assessment, Chinese Research Academy of Environmental Sciences, Beijing 100012, China.
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15
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Truzsi A, Kovács B, Bodnár I, Fábián I. Controlling the formation of halogenated byproducts in the chlorination of source waters by oxidative pre-treatment with the Fe(II)/Fe(III)-S(IV)-air system. ECOTOXICOLOGY AND ENVIRONMENTAL SAFETY 2022; 244:114036. [PMID: 36049334 DOI: 10.1016/j.ecoenv.2022.114036] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/30/2022] [Revised: 08/22/2022] [Accepted: 08/26/2022] [Indexed: 06/15/2023]
Abstract
Breakpoint chlorination is a generally accepted method for removing ammonium ion from source waters in drinking water treatment technologies. This process is often accompanied by the formation of halogenated organic byproducts. The presence of these compounds in potable water is of primary concern. In this paper, we demonstrate that the concentration of the precursors of the halogenated species can sufficiently be decreased by oxidizing the organic pollutants with the Fe(II)/Fe(III) - S(IV) - air system. Pre-oxidative treatment of the source waters results in a substantial reduction of chemical oxygen demand, while the ammonium ion concentration remains unaffected. The breakpoint chlorination produces substantially less trihalomethanes (THMs) and adsorbable halogenated organic compounds (AOXs) in oxidatively pre-treated source waters than in raw waters. These results offer a possibility to improve drinking water treatment technologies for better controlling the formation of antagonistic byproducts. It is demonstrated that reaching the regulated concentration levels of THMs is feasible with this method even in source waters containing organic pollutants at relatively high concentration levels. The main advantage of the procedure is that the reagents used for the oxidative pre-treatment are converted into non-toxic products (Fe(III) and SO42-) by the end of the process.
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Affiliation(s)
- Alexandra Truzsi
- Department of Environmental Engineering, University of Debrecen, Ótemető u. 2-4., Debrecen H-4028, Hungary; Doctoral School of Chemistry, University of Debrecen, Egyetem tér 1., Debrecen H-4032, Hungary
| | - Boglárka Kovács
- Debrecen Waterworks Ltd., Benczúr Gyula u. 7., Debrecen H-4032, Hungary
| | - Ildikó Bodnár
- Department of Environmental Engineering, University of Debrecen, Ótemető u. 2-4., Debrecen H-4028, Hungary
| | - István Fábián
- Department of Inorganic and Analytical Chemistry, University of Debrecen, Egyetem tér 1., Debrecen H-4032, Hungary; ELKH-DE Mechanisms of Complex Homogeneous and Heterogeneous Chemical Reactions Research Group, University of Debrecen, Egyetem tér 1, 4032 Debrecen, Hungary.
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16
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von Mühlen L, Prestes OD, Ferrão MF, Sirtori C. Miniaturized Method for Chemical Oxygen Demand Determination Using the PhotoMetrix PRO Application. Molecules 2022; 27:molecules27154721. [PMID: 35897897 PMCID: PMC9331614 DOI: 10.3390/molecules27154721] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2022] [Revised: 07/11/2022] [Accepted: 07/18/2022] [Indexed: 02/01/2023] Open
Abstract
The analysis of chemical oxygen demand (COD) plays an important role in measuring water pollution, but it normally has a high ecological price. Advances in image acquisition and processing techniques enable the use of mobile devices for analytical purposes. Here, the PhotoMetrix PRO application was used for image acquisition and multivariate analysis. Statistical analysis showed no significant difference in the results compared to the standard method, with no adverse effect of the volume reduction. The cost of analysis and waste generation were reduced by one third, while the analysis time was reduced by one fifth. The miniaturized method was successfully employed in the analysis of several matrices and for the evaluation of advanced oxidation processes. The AGREE score was improved by 25% due to miniaturization. For these reasons, the miniaturized PhotoMetrix PRO method is a suitable option for COD analysis, being less hazardous to the environment due to reductions in the chemicals used and in waste generation.
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Affiliation(s)
- Lisandro von Mühlen
- Instituto de Química, Universidade Federal do Rio Grande do Sul, Av. Bento Gonçalves, 9500, Porto Alegre 91501-970, RS, Brazil; (L.v.M.); (M.F.F.)
- Laboratório de Análises de Resíduos de Pesticidas (LARP), Departamento de Química, Universidade Federal de Santa Maria, Av. Roraima, 1000, Santa Maria 97105-900, RS, Brazil;
| | - Osmar D. Prestes
- Laboratório de Análises de Resíduos de Pesticidas (LARP), Departamento de Química, Universidade Federal de Santa Maria, Av. Roraima, 1000, Santa Maria 97105-900, RS, Brazil;
| | - Marco F. Ferrão
- Instituto de Química, Universidade Federal do Rio Grande do Sul, Av. Bento Gonçalves, 9500, Porto Alegre 91501-970, RS, Brazil; (L.v.M.); (M.F.F.)
| | - Carla Sirtori
- Instituto de Química, Universidade Federal do Rio Grande do Sul, Av. Bento Gonçalves, 9500, Porto Alegre 91501-970, RS, Brazil; (L.v.M.); (M.F.F.)
- Correspondence: ; Tel.: +55-51-3308-7796
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17
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Neven L, Barich H, Rutten R, De Wael K. Novel (Photo)electrochemical Analysis of Aqueous Industrial Samples Containing Phenols. Microchem J 2022. [DOI: 10.1016/j.microc.2022.107778] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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18
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Sustainable and green persulfate-based chemiluminescent method for on-site estimation of chemical oxygen demand in waters. Anal Chim Acta 2022; 1223:340196. [DOI: 10.1016/j.aca.2022.340196] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2022] [Revised: 07/18/2022] [Accepted: 07/21/2022] [Indexed: 11/17/2022]
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19
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Neven L, Barich H, Sleegers N, Cánovas R, Debruyne G, De Wael K. Development of a combi-electrosensor for the detection of phenol by combining photoelectrochemistry and square wave voltammetry. Anal Chim Acta 2022; 1206:339732. [DOI: 10.1016/j.aca.2022.339732] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2021] [Revised: 03/08/2022] [Accepted: 03/14/2022] [Indexed: 11/27/2022]
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20
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Zhu W, Hao N, Chen C, Qiu Y, Zuo Y, Wei J, Qian J, Wang K. Hierarchical Regulation of LaMnO 3 Dual-Pathway Strategy for Excellent Room-Temperature Organocatalytic Oxidation Performance. Inorg Chem 2022; 61:7459-7466. [PMID: 35486826 DOI: 10.1021/acs.inorgchem.2c00521] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The performance-enhancing strategy of a single pathway for perovskite has been widely studied. In this work, the dual-pathway strategy of A-site Ce substitution and nitric acid selective dissolution was proposed. The catalytic oxidation performance of LaMnO3 exhibits the characteristic of hierarchical regulation, that is, a steplike improvement, which avoids the limitation of performance improvement of the single pathway. The B-site Mn with catalytic activity was in situ reconstituted on the surface to build a Mn-rich surface. The obtained sdLa0.7Ce0.3MnO3 has the advantages of good oxygen mobility, high Mn4+/Mn3+ molar ratio, and large specific surface area, and this material showed excellent catalytic oxidation performance for organics, which can realize colorimetric chemical oxygen demand detection at room temperature. Here, Ce substitution improved the oxidation capacity by improving the oxygen mobility and the ratio of Mn4+/Mn3+, and further nitric acid treatment not only accelerated the in situ reconstruction of B-site Mn but also increased the specific surface area.
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Affiliation(s)
- Weiran Zhu
- Key Laboratory of Modern Agriculture Equipment and Technology, School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang 212013, PR China
| | - Nan Hao
- Key Laboratory of Modern Agriculture Equipment and Technology, School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang 212013, PR China
| | - Chen Chen
- Key Laboratory of Modern Agriculture Equipment and Technology, School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang 212013, PR China
| | - Yu Qiu
- Key Laboratory of Modern Agriculture Equipment and Technology, School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang 212013, PR China
| | - Yanli Zuo
- Key Laboratory of Modern Agriculture Equipment and Technology, School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang 212013, PR China
| | - Jie Wei
- Key Laboratory of Modern Agriculture Equipment and Technology, School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang 212013, PR China
| | - Jing Qian
- Key Laboratory of Modern Agriculture Equipment and Technology, School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang 212013, PR China
| | - Kun Wang
- Key Laboratory of Modern Agriculture Equipment and Technology, School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang 212013, PR China
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21
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Lv Z, Xiao X, Wang Y, Zhang Y, Jiao N. Improved water quality monitoring indicators may increase carbon storage in the oceans. ENVIRONMENTAL RESEARCH 2022; 206:112608. [PMID: 34953886 DOI: 10.1016/j.envres.2021.112608] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/12/2021] [Revised: 12/17/2021] [Accepted: 12/18/2021] [Indexed: 06/14/2023]
Abstract
Indicators related to organic matter are important when assessing aquatic environment quality. The chemical oxygen demand (COD) is widely used as a water quality reference. However, oxidizing agents used to determine the COD can oxidize refractory organic matter that is not pollutant and can persist in the ocean for thousands of years. This means the COD can misrepresent the water quality. The actual water quality can be indicated better by the biochemical oxygen demand (BOD) than the COD, but determining the BOD is time-consuming and gives variable results. In this study, the optical properties of dissolved organic matter in water samples from the Chinese coast that had been incubated for a long time or directly oxidized using COD oxidant were analyzed. The results indicated that the oxidizing agent rapidly oxidized 22.93% ± 4.96% of refractory dissolved organic matter (RDOM) that was resistant to microbial degradation, implying that RDOM made a marked contribution to the COD. Meanwhile, size-fractional fluorescence spectroscopy and COD measurements indicated that the COD of the >0.7 μm fraction and the fluorescence intensity of the protein-like component significantly positively correlated with the BOD of the bulk sample. This indicated that, for monitoring organic pollutants in coastal waters, the COD of the >0.7 μm fraction could be used as a proxy for the standard COD and that the fluorescence intensity of the protein-like component could be used as a convenient proxy for the BOD. The method can help retain recalcitrant organic matter in seawater to act as a carbon sink.
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Affiliation(s)
- Zongqing Lv
- State Key Laboratory for Marine Environmental Science, Institute of Marine Microbes and Ecospheres, College of Ocean and Earth Sciences, Xiamen University, Xiamen, 361102, China
| | - Xilin Xiao
- State Key Laboratory for Marine Environmental Science, Institute of Marine Microbes and Ecospheres, College of Ocean and Earth Sciences, Xiamen University, Xiamen, 361102, China
| | - Yu Wang
- State Key Laboratory for Marine Environmental Science, Institute of Marine Microbes and Ecospheres, College of Ocean and Earth Sciences, Xiamen University, Xiamen, 361102, China
| | - Yao Zhang
- State Key Laboratory for Marine Environmental Science, Institute of Marine Microbes and Ecospheres, College of Ocean and Earth Sciences, Xiamen University, Xiamen, 361102, China.
| | - Nianzhi Jiao
- State Key Laboratory for Marine Environmental Science, Institute of Marine Microbes and Ecospheres, College of Ocean and Earth Sciences, Xiamen University, Xiamen, 361102, China.
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22
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Neven L, Barich H, Ching HYV, Khan SU, Colomier C, Patel HH, Gorun SM, Verbruggen S, Van Doorslaer S, De Wael K. Correlation between the Fluorination Degree of Perfluorinated Zinc Phthalocyanines, Their Singlet Oxygen Generation Ability, and Their Photoelectrochemical Response for Phenol Sensing. Anal Chem 2022; 94:5221-5230. [PMID: 35316027 DOI: 10.1021/acs.analchem.1c04357] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Electron-withdrawing perfluoroalkyl peripheral groups grafted on phthalocyanine (Pc) macrocycles improve their single-site isolation, solubility, and resistance to self-oxidation, all beneficial features for catalytic applications. A high degree of fluorination also enhances the reducibility of Pcs and could alter their singlet oxygen (1O2) photoproduction. The ethanol/toluene 20:80 vol % solvent mixture was found to dissolve perfluorinated FnPcZn complexes, n = 16, 52, and 64, and minimize the aggregation of the sterically unencumbered F16PcZn. The 1O2 production ability of FnPcZn complexes was examined using 9,10-dimethylanthracene (DMA) and 2,2,6,6-tetramethylpiperidine (TEMP) in combination with UV-vis and electron paramagnetic resonance (EPR) spectroscopy, respectively. While the photoreduction of F52PcZn and F64PcZn in the presence of redox-active TEMP lowered 1O2 production, DMA was a suitable 1O2 trap for ranking the complexes. The solution reactivity was complemented by solid-state studies via the construction of photoelectrochemical sensors based on TiO2-supported FnPcZn, FnPcZn|TiO2. Phenol photo-oxidation by 1O2, followed by its electrochemical reduction, defines a redox cycle, the 1O2 production having been found to depend on the value of n and structural features of the supported complexes. Consistent with solution studies, F52PcZn was found to be the most efficient 1O2 generator. The insights on reactivity testing and structural-activity relationships obtained may be useful for designing efficient and robust sensors and for other 1O2-related applications of FnPcZn.
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Affiliation(s)
- Liselotte Neven
- A-Sense Lab, Department of Bioscience Engineering, University of Antwerp, Groenenborgerlaan 171, 2020 Antwerp, Belgium.,NANOlab Center of Excellence, University of Antwerp, Groenenborgerlaan 171, 2020 Antwerp, Belgium.,BIMEF Research Group, Department of Chemistry, University of Antwerp, Universiteitsplein 1, 2610 Wilrijk, Belgium
| | - Hanan Barich
- A-Sense Lab, Department of Bioscience Engineering, University of Antwerp, Groenenborgerlaan 171, 2020 Antwerp, Belgium.,NANOlab Center of Excellence, University of Antwerp, Groenenborgerlaan 171, 2020 Antwerp, Belgium
| | - H Y Vincent Ching
- BIMEF Research Group, Department of Chemistry, University of Antwerp, Universiteitsplein 1, 2610 Wilrijk, Belgium
| | - Shahid U Khan
- A-Sense Lab, Department of Bioscience Engineering, University of Antwerp, Groenenborgerlaan 171, 2020 Antwerp, Belgium.,NANOlab Center of Excellence, University of Antwerp, Groenenborgerlaan 171, 2020 Antwerp, Belgium.,DuEL Research Group, Department of Bioscience Engineering, University of Antwerp, Groenenborgerlaan 171, 2020 Antwerp, Belgium
| | - Christopher Colomier
- Department of Chemistry and Biochemistry and the Centre for Functional Materials, Seton Hall University, 400 South Orange Ave, New Jersey 07079, United States
| | - Hemantbhai H Patel
- Department of Chemistry and Biochemistry and the Centre for Functional Materials, Seton Hall University, 400 South Orange Ave, New Jersey 07079, United States
| | - Sergiu M Gorun
- Department of Chemistry and Biochemistry and the Centre for Functional Materials, Seton Hall University, 400 South Orange Ave, New Jersey 07079, United States
| | - Sammy Verbruggen
- DuEL Research Group, Department of Bioscience Engineering, University of Antwerp, Groenenborgerlaan 171, 2020 Antwerp, Belgium
| | - Sabine Van Doorslaer
- BIMEF Research Group, Department of Chemistry, University of Antwerp, Universiteitsplein 1, 2610 Wilrijk, Belgium
| | - Karolien De Wael
- A-Sense Lab, Department of Bioscience Engineering, University of Antwerp, Groenenborgerlaan 171, 2020 Antwerp, Belgium.,NANOlab Center of Excellence, University of Antwerp, Groenenborgerlaan 171, 2020 Antwerp, Belgium
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23
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Maqbool Q, Barucca G, Sabbatini S, Parlapiano M, Ruello ML, Tittarelli F. Transformation of industrial and organic waste into titanium doped activated carbon - cellulose nanocomposite for rapid removal of organic pollutants. JOURNAL OF HAZARDOUS MATERIALS 2022; 423:126958. [PMID: 34464859 DOI: 10.1016/j.jhazmat.2021.126958] [Citation(s) in RCA: 19] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/06/2021] [Revised: 08/17/2021] [Accepted: 08/17/2021] [Indexed: 06/13/2023]
Abstract
Production of cost-efficient composite materials with desired physicochemical properties from low-cost waste material is much needed to meet the growing needs of the industrial sector. As a step forward, the current study reports for the first time an effective utilization of industrial metal (inorganic) waste as well as fall leaves (organic waste), to produce three types of nanomaterials at the same time; "Titanium Doped Activated Carbon Nanostructures (Ti-ACNs)", "Nanocellulose (NCel)", and combination of both "Titanium Doped Activated Carbon Cellulose Nanocomposite (Ti-AC-Cel-NC)". X-ray diffraction (XRD), transmission electron microscopy (TEM) and microanalysis (EDXS) measurements reveal that the Ti-ACNs material is formed by Ti-nanostructures, generally poorly crystalized but in some cases forming hexagonal Ti-crystallites of 15 nm, embedded in mutated graphene clouds. Micro- Fourier transform infrared spectroscopy (micro-FTIR) confirms that the chemical structure of NCel with bond vibrations between 1035 to 2917 cm-1 remained preserved during Ti-AC-Cel-NC formation. The prepared materials (Ti-ACNs, Ti-AC-Cel-NC) have demonstrated rapid removal of organic pollutants (Crystal Violet, Methyl Violet) from wastewater through surface adsorption and photocatalysis. In the first 20 min, Ti-ACNs have adsorbed ≈87% of the organic pollutants and further photocatalyzed them up to ≈96%. When Ti-ACNs are combined with NCel, their efficiency is increased of about four times. This performance originates from the adsorption by mutated graphene-like carbon and assisted photocatalysis by Ti nanostructures as well as the good supporting capacity of NCel for the homogenous Ti-ACNs distribution.
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Affiliation(s)
- Qaisar Maqbool
- Department of "Materials, Environmental Sciences and Urban Planning (SIMAU), Università Politecnica delle Marche, INSTM Research Unit, via Brecce Bianche 12, 60131 Ancona, Italy.
| | - Gianni Barucca
- Department of "Materials, Environmental Sciences and Urban Planning (SIMAU), Università Politecnica delle Marche, INSTM Research Unit, via Brecce Bianche 12, 60131 Ancona, Italy.
| | - Simona Sabbatini
- Department of "Materials, Environmental Sciences and Urban Planning (SIMAU), Università Politecnica delle Marche, INSTM Research Unit, via Brecce Bianche 12, 60131 Ancona, Italy
| | - Marco Parlapiano
- Department of "Materials, Environmental Sciences and Urban Planning (SIMAU), Università Politecnica delle Marche, INSTM Research Unit, via Brecce Bianche 12, 60131 Ancona, Italy
| | - Maria Letizia Ruello
- Department of "Materials, Environmental Sciences and Urban Planning (SIMAU), Università Politecnica delle Marche, INSTM Research Unit, via Brecce Bianche 12, 60131 Ancona, Italy
| | - Francesca Tittarelli
- Department of "Materials, Environmental Sciences and Urban Planning (SIMAU), Università Politecnica delle Marche, INSTM Research Unit, via Brecce Bianche 12, 60131 Ancona, Italy
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24
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Truzsi A, Elek J, Fábián I. Sulfur(IV) assisted oxidative removal of organic pollutants from source water. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2022; 294:118625. [PMID: 34864105 DOI: 10.1016/j.envpol.2021.118625] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/14/2021] [Revised: 11/19/2021] [Accepted: 12/01/2021] [Indexed: 06/13/2023]
Abstract
The removal of organic pollutants presents a major challenge for drinking water treatment plants. The chemical oxygen demand (COD) is essentially the measure of oxidizable organic matter in source waters. In this study, we report that COD can efficiently be decreased by adding Fe(II)/Fe(III) and sulfite ion to the source water while purging it with air. In this process, oxygen is activated to oxidize the main constituents of COD, i.e. organic substrates, via the generation of reactive inorganic oxysulfur radical ions. In the end, the total amount of sulfur(IV) is converted to the non-toxic sulfate ion. It has been explored how the COD removal efficiency depends on the concentration of S(IV), the total concentration of iron species, the concentration ratio of Fe(II) and Fe(III), the purging rate and the contact time by using source water from a specific location (Királyhegyes, Hungary). The process has been optimized by applying the Response Surface Methodology (RSM). Under optimum conditions, the predicted and experimentally found COD removal efficiencies are in excellent agreement: 85.4% and 87.5%, respectively. The robustness of the process was tested by varying the optimum values of the parameters by ± 20%. It was demonstrated that the method is universally applicable because a remarkable decrease was achieved in COD, 62.0-88.5%, with source waters of various compositions acquired from 9 wells at other locations using the same conditions as in the case of Királyhegyes.
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Affiliation(s)
- Alexandra Truzsi
- Department of Environmental Engineering, University of Debrecen, Ótemető u. 2-4., Debrecen, H-4028, Hungary; Doctoral School of Chemistry, University of Debrecen, Egyetem tér 1., Debrecen, H-4032, Hungary
| | - János Elek
- Department of Inorganic and Analytical Chemistry, University of Debrecen, Egyetem tér 1., Debrecen, H-4032, Hungary
| | - István Fábián
- Department of Inorganic and Analytical Chemistry, University of Debrecen, Egyetem tér 1., Debrecen, H-4032, Hungary; MTA-DE Redox and Homogeneous Catalytic Reaction Mechanisms, Research Group, Egyetem tér 1., Debrecen, H-4032, Hungary.
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25
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Research on Micro-Quantitative Detection Technology of Simulated Waterbody COD Based on the Ozone Chemiluminescence Method. WATER 2022. [DOI: 10.3390/w14030328] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
Chemical oxygen demand (COD), reflecting the degree of waterbody contaminated by reduction substances, is an important parameter for water quality monitoring. The existing measurement method of waterbody COD takes time and is a complex system, which cannot meet the real-time monitoring requirements of river pollution indicators. We developed the vortex t-structure microfluidic detection chip with the help of microfluidic technology and designed the COD detection system with a high integration degree based on the principle of ozone chemiluminescence, and we have also carried out research on a waterbody COD quantitative detection test. The test results show that the detection chip can generate quantitative and controllable ozone-based bubbles; it also shows the advantages of a simple system and short test time without environmental pollution, which provides some technical support for the online real-time monitoring of river water quality.
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26
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Li P, Lai Y, Li Q, Dong L, Tan Z, Yu S, Chen Y, Sharma VK, Liu J, Jiang G. Total Organic Carbon as a Quantitative Index of Micro- and Nano-Plastic Pollution. Anal Chem 2022; 94:740-747. [DOI: 10.1021/acs.analchem.1c03114] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Peng Li
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, P.O. Box 2871, Beijing 100085, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Yujian Lai
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, P.O. Box 2871, Beijing 100085, China
- School of Environment, Hangzhou Institute for Advanced Study, UCAS, Hangzhou 310024, China
| | - Qingcun Li
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, P.O. Box 2871, Beijing 100085, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Lijie Dong
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, P.O. Box 2871, Beijing 100085, China
| | - Zhiqiang Tan
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, P.O. Box 2871, Beijing 100085, China
| | - Sujuan Yu
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, P.O. Box 2871, Beijing 100085, China
| | - Yongsheng Chen
- School of Civil and Environmental Engineering, Georgia Institute of Technology, Atlanta, Georgia 30332, United States
| | - Virender K. Sharma
- Department of Environment and Occupational Health, School of Public Health, Texas A&M University, 212 Adriance Lab Rd. 1266 TAMU, College Station, Texas 77843, United States
| | - Jingfu Liu
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, P.O. Box 2871, Beijing 100085, China
- School of Environment, Hangzhou Institute for Advanced Study, UCAS, Hangzhou 310024, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Guibin Jiang
- State Key Laboratory of Environmental Chemistry and Ecotoxicology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, P.O. Box 2871, Beijing 100085, China
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27
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Wu Z, Fu W, Xu H, Zheng R, Han F, Liang Z, Han D, Han D, Li F, Niu L. Simple preparation of in-situ oxidized titanium carbide MXene for photocatalytic degradation of catechol. NEW J CHEM 2022. [DOI: 10.1039/d2nj01033j] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Photocatalytic system has been widely applied to treat the highly toxic and refractory aromatics sewage water pollution problem. However, developing highly active and excellent durability photocatalysts is always the long-term...
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28
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Elfeky EMS, Shehata MR, Elbashar YH, Barakat MH, El Rouby WMA. Developing the sensing features of copper electrodes as an environmental friendly detection tool for chemical oxygen demand. RSC Adv 2022; 12:4199-4208. [PMID: 35425431 PMCID: PMC8981162 DOI: 10.1039/d1ra09411d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2021] [Accepted: 01/27/2022] [Indexed: 11/21/2022] Open
Abstract
COD sensor based on a modified Cu wire electrode.
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Affiliation(s)
| | | | - Yahia H. Elbashar
- Department of Basic Science, El Gazeera High Institute for Engineering and Technology, Cairo, Egypt
| | | | - Waleed M. A. El Rouby
- Materials Science and Nanotechnology Department, Faculty of Postgraduate Studies for Advanced Science, Beni-Suef University, Beni-Suef, Egypt
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29
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Hao N, Dai Z, Xiong M, Han X, Zuo Y, Qian J, Wang K. Rapid Potentiometric Detection of Chemical Oxygen Demand Using a Portable Self-Powered Sensor Chip. Anal Chem 2021; 93:8393-8398. [PMID: 34101434 DOI: 10.1021/acs.analchem.1c01863] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
Chemical oxygen demand (COD) is an important indicator of organic pollutants in water bodies. Most of the present testing methods have the disadvantages of having complicated steps, being time-consuming, and using toxic and hazardous substances. In this work, rapid potentiometric detection of chemical oxygen demand (COD) using a portable self-powered sensor chip was successfully developed. The indium tin oxide (ITO) electrode was etched by laser, and the photocatalytic materials TiO2/CuS and Pt were modified onto the photoanode and the cathode to prepare the sensor chip. Based on the principle of photocatalytic degradation, organic pollutants can be oxidized by TiO2/CuS, and the concentration will affect the generated voltage. The quantitative detection of COD in the range of 0.05-50 mg/L can be rapidly achieved within 5 min by a miniature device. Besides good portability and sensitivity, the proposed sensor also has the advantages of environmental friendliness and ease of use, which is an ideal choice for the on-site detection of water pollution.
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Affiliation(s)
- Nan Hao
- School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang 212013, PR China
| | - Zhen Dai
- School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang 212013, PR China
| | - Meng Xiong
- School of Biotechnology, Jiangsu University of Science and Technology, Zhenjiang 212018, PR China
| | - Xu Han
- Science and Technology on Space Physics Laboratory, Beijing 10076, PR China
| | - Yanli Zuo
- School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang 212013, PR China
| | - Jing Qian
- School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang 212013, PR China
| | - Kun Wang
- School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang 212013, PR China
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30
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Pang Z, Cai Y, Xiong W, Xiao J, Zou J. A spectrophotometric method for measuring permanganate index (COD Mn) by N,N-diethyl-p-phenylenediamine (DPD). CHEMOSPHERE 2021; 266:128936. [PMID: 33223208 DOI: 10.1016/j.chemosphere.2020.128936] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/17/2020] [Revised: 11/02/2020] [Accepted: 11/07/2020] [Indexed: 06/11/2023]
Abstract
A new spectrophotometric method for measuring permanganate index (chemical oxygen demand using potassium permanganate (KMnO4) as oxidant, CODMn) in water was established. The method was based on the rapid oxidation of N,N-diethyl-p-phenylenediamine (DPD) by residual KMnO4 in digestion solution under neutral pH condition to form the stable pink radical (DPD●+). Only 20 s were enough to form the pink DPD●+. The generated DPD●+ could be quantitatively measured by a visible spectrophotometer at 551 nm. Stoichiometric coefficient of the reaction between KMnO4 and DPD was close to 1:5 (1:5.07). There was a well linear relationship (R2 = 0.999) between the change of the absorbance of DPD●+ at 551 nm and the concentration of CODMn in the range of 0-4.46 mg L-1. Limit of detection of the DPD method was as low as 0.02 mg L-1 CODMn. The DPD method was highly accurate for measuring CODMn in standard solutions with well recovery rates of 99.17%-102.22%, and was well tolerant to the interference of coexistent Cl- and Fe3+. The DPD method was successfully applied for measuring CODMn in real water samples, including surface water, underground water and drinking water. In comparison to the traditional titration method, the proposed DPD method was more convenient to operate, required less samples and digestion reagents (i.e., KMnO4 and H2SO4) and could be employed for online monitor.
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Affiliation(s)
- Zijun Pang
- Institute of Municipal and Environmental Engineering, College of Civil Engineering, Huaqiao University, Xiamen, Fujian, 361021, PR China; School of Environment and Energy, South China University of Technology, Guangzhou, Guangdong, 510006, PR China
| | - Yajuan Cai
- Institute of Municipal and Environmental Engineering, College of Civil Engineering, Huaqiao University, Xiamen, Fujian, 361021, PR China
| | - Weihao Xiong
- Institute of Municipal and Environmental Engineering, College of Civil Engineering, Huaqiao University, Xiamen, Fujian, 361021, PR China
| | - Junyang Xiao
- Institute of Municipal and Environmental Engineering, College of Civil Engineering, Huaqiao University, Xiamen, Fujian, 361021, PR China; College of Environmental Science and Engineering, Hunan University, Changsha, Hunan, 410082, PR China
| | - Jing Zou
- Institute of Municipal and Environmental Engineering, College of Civil Engineering, Huaqiao University, Xiamen, Fujian, 361021, PR China.
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31
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Edwards EA. Electron Balances for Nutrition and Health. J Nutr 2021; 151:277. [PMID: 33326995 DOI: 10.1093/jn/nxaa372] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2020] [Revised: 10/26/2020] [Accepted: 10/27/2020] [Indexed: 11/14/2022] Open
Affiliation(s)
- Elizabeth A Edwards
- Department of Chemical Engineering and Applied Chemistry, University of Toronto, Toronto, Ontario, Canada
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32
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Yin J, Zhang Z, Zhang X, Mai Y, Luan A, Xu B, Jin Q. A batch microfabrication of a microfluidic electrochemical sensor for rapid chemical oxygen demand measurement. Analyst 2021; 146:1956-1964. [PMID: 33496286 DOI: 10.1039/d0an02133d] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Chemical oxygen demand (COD) is one of the key water quality parameters in environmental monitoring. However, fabricating a COD sensor with the characteristic of batch-processing and rapid measurement is always a challenging issue. This paper reports a microfluidic electrochemical sensor for the organic matter measurement based on advanced oxidization within a fixed microvolume detection chamber by a microfabrication technique/MEMS. By fabricating a silicon-based Ag/AgCl reference electrode and employing PbO2 as the working electrode with Pt as the counter electrode, we verified the superiority of the as-fabricated sensor by continuous potassium acid phthalate detection; an acceptable limit of detection (4.17 mg L-1-200 mg L-1), a low limit of detection (2.05 mg L-1), a desirable linearity (R2 = 0.982) and relative stability at different pH values and Cl- concentrations was witnessed. Particularly, a shorter detection time (2 s) was witnessed for the as-proposed sensor compared with traditional organic matter measurement methods. Each sensing process takes only 2 seconds for sensing because a micro-cavity with a volume of 2.5 μL was fabricated and used as a detection pool. Moreover, as the sensor was fabricated by a mass-production technique, potential response consistency of multiple sensors was expected and was verified via a series of parallel experiments. In this paper, a miniaturized (8 mm × 10 mm), low-cost and reliable COD sensor was designed and fabricated by MEMS, and it provided a core sensor component for construction of an online water environment monitoring network to meet the substantial demand for COD sensors in the Internet of Things (IOT) era.
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Affiliation(s)
- Jiawen Yin
- Faculty of Electrical Engineering and Computer Science, Ningbo University, Ningbo, 315211, P. R. China.
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33
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Dai Z, Hao N, Xiong M, Han X, Zuo Y, Wang K. Portable Photoelectrochromic Visualization Sensor for Detection of Chemical Oxygen Demand. Anal Chem 2020; 92:13604-13609. [DOI: 10.1021/acs.analchem.0c03650] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Affiliation(s)
- Zhen Dai
- School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang 212013, PR China
| | - Nan Hao
- School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang 212013, PR China
| | - Meng Xiong
- School of Biotechnology, Jiangsu University of Science and Technology, Zhenjiang 212018, PR China
| | - Xu Han
- Science and Technology on Space Physics Laboratory, Beijing 10076, PR China
| | - Yanli Zuo
- School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang 212013, PR China
| | - Kun Wang
- School of Chemistry and Chemical Engineering, Jiangsu University, Zhenjiang 212013, PR China
- Key Laboratory of Optic-electric Sensing and Analytical Chemistry for Life Science, OE, School of Chemistry and Molecular Engineering, Qingdao University of Science and Technology, Qingdao, Shandong 266042, PR China
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34
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Li X, Lin D, Lu K, Chen X, Yin S, Li Y, Zhang Z, Tang M, Chen G. Graphene oxide orientated by a magnetic field and application in sensitive detection of chemical oxygen demand. Anal Chim Acta 2020; 1122:31-38. [DOI: 10.1016/j.aca.2020.05.009] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2020] [Revised: 04/25/2020] [Accepted: 05/03/2020] [Indexed: 12/18/2022]
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35
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Alves NA, Olean-Oliveira A, Cardoso CX, Teixeira MFS. Photochemiresistor Sensor Development Based on a Bismuth Vanadate Type Semiconductor for Determination of Chemical Oxygen Demand. ACS APPLIED MATERIALS & INTERFACES 2020; 12:18723-18729. [PMID: 32239904 DOI: 10.1021/acsami.0c04259] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
The present paper describes the development of a novel photochemiresistor sensor for the determination of chemical oxygen demand (COD). A chemiresistive device was produced by a thin film of the monoclinic phase of bismuth vanadate deposited on an FTO glass surface. The resistive properties of the photosensor were carried out by electrochemical impedance spectroscopy (EIS). The electrical resistance of the platform was dependent on the presence of organic material in aqueous solution and the incidence of light. The decrease in resistance can be explained by considering that by increasing the amount of organic material, the amount of charge transferred to BiVO4 increases, as does the amount of the photogenerated conduction band on the film. This behavior is not observed when carrying out the same measurements in the absence of light. Under the optimal experimental conditions, the linear response of the chemiresistor sensor is between 0.20 and 19.9 mg L-1 COD at a fixed AC frequency of 0.1 Hz. There is a good correlation between the charge transfer resistance and COD concentration in the electrolyte solution. Quantification of COD in waste and lake waters was successfully performed using the novel photochemiresistor sensor. The results achieved in the analysis with the sensor are in accordance with the conventional method.
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Affiliation(s)
- Nayara A Alves
- Department of Chemistry and Biochemistry, School of Science and Technology, Sao Paulo State University (UNESP), Rua Roberto Simonsen, 305 CEP Presidente Prudente, São Paulo 19060-900, Brazil
| | - André Olean-Oliveira
- Department of Chemistry and Biochemistry, School of Science and Technology, Sao Paulo State University (UNESP), Rua Roberto Simonsen, 305 CEP Presidente Prudente, São Paulo 19060-900, Brazil
| | - Celso X Cardoso
- Department of Physics, School of Science and Technology, São Paulo State University (UNESP), Presidente Prudente, São Paulo 19060-900, Brazil
| | - Marcos F S Teixeira
- Department of Chemistry and Biochemistry, School of Science and Technology, Sao Paulo State University (UNESP), Rua Roberto Simonsen, 305 CEP Presidente Prudente, São Paulo 19060-900, Brazil
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36
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Zhao WB, Du MR, Liu KK, Zhou R, Ma RN, Jiao Z, Zhao Q, Shan CX. Hydrophilic ZnO Nanoparticles@Calcium Alginate Composite for Water Purification. ACS APPLIED MATERIALS & INTERFACES 2020; 12:13305-13315. [PMID: 32092266 DOI: 10.1021/acsami.9b23458] [Citation(s) in RCA: 21] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Herein, hydrophilic ZnO nanoparticles@calcium alginate composite has been prepared by embedding hydrophilic ZnO nanoparticles (NPs) into calcium alginate. The hydrophilic ZnO NPs within the composites can act as a killer of bacteria, while calcium alginate can remove the organic impurities due to its adsorption capacity, thus realizing the purification of water via sterilization and removal of organics. A water purifier based on the composite has been demonstrated, the aerobic bacterial counts of the contaminated water can be decreased from 2240 to 9 cfu mL-1, and the turbidity of the water is decreased to 0.51 NTU, which is below the maximum permissible of Guidelines for Drinking-water Quality designed by the World Health Organization. Sterilization mechanism studies show that the ZnO NPs can cause excessive oxidative stress in cells, inducing bacteria to produce large amounts of intracellular reactive oxygen species (ROS), which leads to the apoptosis of the bacteria.
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Affiliation(s)
- Wen-Bo Zhao
- Henan Key Laboratory of Diamond Optoelectronic Materials and Devices, Key Laboratory of Materials Physics, Ministry of Education, School of Physics and Microelectronics, Zhengzhou University, Zhengzhou 450052, China
| | - Meng-Ru Du
- Henan Key Laboratory of Ion-beam Bioengineering, School of Agricultural Science, Zhengzhou University, Zhengzhou 450052, China
| | - Kai-Kai Liu
- Henan Key Laboratory of Diamond Optoelectronic Materials and Devices, Key Laboratory of Materials Physics, Ministry of Education, School of Physics and Microelectronics, Zhengzhou University, Zhengzhou 450052, China
| | - Rui Zhou
- Henan Key Laboratory of Diamond Optoelectronic Materials and Devices, Key Laboratory of Materials Physics, Ministry of Education, School of Physics and Microelectronics, Zhengzhou University, Zhengzhou 450052, China
| | - Ruo-Nan Ma
- Henan Key Laboratory of Ion-beam Bioengineering, School of Agricultural Science, Zhengzhou University, Zhengzhou 450052, China
| | - Zhen Jiao
- Henan Key Laboratory of Ion-beam Bioengineering, School of Agricultural Science, Zhengzhou University, Zhengzhou 450052, China
| | - Qi Zhao
- Henan Key Laboratory of Diamond Optoelectronic Materials and Devices, Key Laboratory of Materials Physics, Ministry of Education, School of Physics and Microelectronics, Zhengzhou University, Zhengzhou 450052, China
| | - Chong-Xin Shan
- Henan Key Laboratory of Diamond Optoelectronic Materials and Devices, Key Laboratory of Materials Physics, Ministry of Education, School of Physics and Microelectronics, Zhengzhou University, Zhengzhou 450052, China
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Shi X, Huang S, Yeap TS, Ong SL, Ng HY. A method to eliminate bromide interference on standard COD test for bromide-rich industrial wastewater. CHEMOSPHERE 2020; 240:124804. [PMID: 31541900 DOI: 10.1016/j.chemosphere.2019.124804] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/06/2019] [Revised: 09/06/2019] [Accepted: 09/06/2019] [Indexed: 06/10/2023]
Abstract
Chemical oxygen demand (COD) is one of the most important water quality parameters that quantifies the amount of oxygen needed to oxidize oxidizable pollutants (mainly organics) in water samples. However, erroneous COD results were commonly observed for bromide-rich industrial wastewater samples using standard COD test. Bromide in water sample is known to seriously interfere with COD test. However, there is no satisfactory approach to effectively eliminate bromide interference thus far. In this study, two strategies, namely masking and correction, were investigated for their effectiveness to suppress bromide interference. For the masking strategy, silver ion was assessed for its effectiveness to neutralize bromide in water samples through precipitation and complex formation reactions. Silver ion offered only partial masking effect on bromide, while the residue bromide can still cause significant interference on COD determination. For the correction strategy, an equivalent redox reaction reflecting bromide interference mechanism was proposed, and a theoretical correction factor of 0.1 g COD/g Br- was found based on stoichiometry. The effectiveness of the proposed correction factor for bromide interference under different wastewater pollutant matrix was evaluated using different types of wastewater samples (synthetic wastewater, domestic wastewater and bromide-rich industrial wastewater) with varying amounts of bromide (from 0 to 2000 mg L-1) added to the samples. The findings showed that with bromide concentration up to 600 mg L-1, the correction factor of 0.1 g COD/g Br- was applicable to all the tested wastewater samples, suggesting that this correction strategy could be practically used to eliminate bromide interference in standard COD test.
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Affiliation(s)
- Xueqing Shi
- School of Environmental and Municipal Engineering, Qingdao University of Technology, 11 Fushun Road, Qingdao, 266033, PR China; Sembcorp-NUS Corporate Laboratory, Faculty of Engineering, National University of Singapore, 1 Engineering Drive 2, 117576, Singapore
| | - Shujuan Huang
- Sembcorp-NUS Corporate Laboratory, Faculty of Engineering, National University of Singapore, 1 Engineering Drive 2, 117576, Singapore; Centre for Water Research, Department of Civil & Environmental Engineering, National University of Singapore, 1 Engineering Drive 2, 117576, Singapore
| | - Tsuey Shan Yeap
- Sembcorp-NUS Corporate Laboratory, Faculty of Engineering, National University of Singapore, 1 Engineering Drive 2, 117576, Singapore; Centre for Water Research, Department of Civil & Environmental Engineering, National University of Singapore, 1 Engineering Drive 2, 117576, Singapore
| | - Say Leong Ong
- Sembcorp-NUS Corporate Laboratory, Faculty of Engineering, National University of Singapore, 1 Engineering Drive 2, 117576, Singapore; Centre for Water Research, Department of Civil & Environmental Engineering, National University of Singapore, 1 Engineering Drive 2, 117576, Singapore
| | - How Yong Ng
- Sembcorp-NUS Corporate Laboratory, Faculty of Engineering, National University of Singapore, 1 Engineering Drive 2, 117576, Singapore; Centre for Water Research, Department of Civil & Environmental Engineering, National University of Singapore, 1 Engineering Drive 2, 117576, Singapore.
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38
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Direct determination of chemical oxygen demand by anodic oxidative degradation of organics at a composite 3-D electrode. J Solid State Electrochem 2019. [DOI: 10.1007/s10008-019-04250-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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39
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Rodríguez-Mata AE, Amabilis-Sosa LE, Roé-Sosa A, Barrera-Andrade JM, Rangel-Peraza JG, Salinas-Juárez MG. Quantification of recalcitrant organic compounds during their removal test by a novel and economical method based on chemical oxygen demand analysis. KOREAN J CHEM ENG 2019. [DOI: 10.1007/s11814-018-0203-9] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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40
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Basereh Taromsary N, Bonakdarpour B, Amoozegar MA, Fallah N, Fadaei Tehran A. Quantifying the organic content of saline wastewaters: Is chemical oxygen demand always an achievable parameter? Talanta 2019; 197:509-516. [PMID: 30771969 DOI: 10.1016/j.talanta.2019.01.028] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2018] [Revised: 01/06/2019] [Accepted: 01/07/2019] [Indexed: 10/27/2022]
Abstract
The study presented in this paper takes a comprehensive approach to the measurement of the COD of saline industrial wastewaters taking into account both their widely varying salinity levels and the substantial interference of chloride with the conventional method of COD measurement. To this end, three approaches for combating the chloride interference associated with the measurement of COD using the conventional method were considered. The dilution of saline samples prior to analysis yielded reasonably accurate COD results as long as the COD after dilution was 40 mg L-1 or above. In the second approach, the previously reported modifications of the standard method were stretched to their practical limits (increasing HgSO4 to 130 g L-1 and decreasing K2Cr2O7 to 1.022 g L-1) accompanied by prior addition of HgSO4:Cl- at a ratio of 20:1 combined with chloride interference error estimation. This brought about an increase in chloride interference threshold of the standard method to 42.5 g L-1, which is considerably higher than previous reports. Since some raw or treated saline industrial wastewaters have a combination of chloride and COD concentration which makes the first two approaches inapplicable, the approach of chloride removal from the sample via a modification of DIN 38409-H41-2 and subsequent measurement of COD using a slight variation of the closed reflux standard method was also considered. Fairly accurate COD determinations for samples with chloride concentrations up to 148.6 and 182 g L-1 for COD contents of 50 and 900 mg L-1, respectively were achieved. However, excessive precipitation of the desalination reaction products made the method inapplicable to samples with chloride concentrations above 182 g L-1.
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Affiliation(s)
| | - Babak Bonakdarpour
- Department of Chemical Engineering, Amirkabir University of Technology, Tehran, Iran.
| | - Mohammad Ali Amoozegar
- Department of Microbiology, School of Biology, College of Science, University of Tehran, Tehran, Iran
| | - Narges Fallah
- Department of Chemical Engineering, Amirkabir University of Technology, Tehran, Iran
| | - Arezou Fadaei Tehran
- Department of Chemical Engineering, Amirkabir University of Technology, Tehran, Iran
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Zhang B, Huang L, Tang M, Hunter KW, Feng Y, Sun Q, Wang J, Chen G. A nickel nanoparticle/nafion-graphene oxide modified screen-printed electrode for amperometric determination of chemical oxygen demand. Mikrochim Acta 2018; 185:385. [PMID: 30043240 DOI: 10.1007/s00604-018-2917-0] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2018] [Accepted: 07/13/2018] [Indexed: 12/01/2022]
Abstract
A nickel nanoparticle/nafion-graphene oxide (NiNP/Nf-GO) modified screen-printed electrode (SPE) was developed for rapid and environmentally friendly electrochemical determination of chemical oxygen demand (COD). The morphology and the electrochemical performance of the SPEs with different surface modifications were investigated by scanning electron microscopy, electrochemical impedance spectroscopy, amperometry, and cyclic voltammetry, respectively. Interestingly, incorporation of graphene oxide as supporting materials to the NiNP/Nf-GO modified SPE enables high catalyst loading and electrode contact, leading to excellent electrocatalytic oxidation ability. A flow detection system was constructed based the newly designed NiNP/Nf-GO modified SPE with USB connection, a 3D-printed thin-layer flow cell (TLFC), and a peristaltic pump. The flow detection system showed an excellent performance for COD analysis with a linear detection range of 0.1~400 mg L-1 and a lower detection limit of 0.05 mg L-1 with an oxidation potential of 0.45 V. The system was further applied to determine the COD in surface water samples. The results were consistent with those obtained by using the standard method (ISO 6060). Graphical abstract A novel nickel nanoparticle/nafion-graphene oxide (NiNP/Nf-GO) modified screen-printed electrode (SPE) with excellent electrocatalytic oxidation ability was designed and fabricated. This electrode with USB connection was applied in a flow detection system equipped with a 3D-printed thin-layer flow cell and a peristaltic pump for environmentally friendly electrochemical determination of chemical oxygen demand.
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Affiliation(s)
- Baojian Zhang
- College of Chemistry and Molecular Engineering, Nanjing Tech University, Nanjing, 210009, China
| | - Liming Huang
- Department of Microbiology and Immunology, School of Medicine, University of Nevada, Reno, NV, 89557, USA.
| | - Meihua Tang
- School of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, Nanjing, 210009, China
| | - Kenneth W Hunter
- Department of Microbiology and Immunology, School of Medicine, University of Nevada, Reno, NV, 89557, USA
| | - Yan Feng
- College of Chemistry and Molecular Engineering, Nanjing Tech University, Nanjing, 210009, China
| | - Qianwen Sun
- College of Chemistry and Molecular Engineering, Nanjing Tech University, Nanjing, 210009, China
| | - Jikui Wang
- College of Chemistry and Molecular Engineering, Nanjing Tech University, Nanjing, 210009, China
| | - Guosong Chen
- College of Chemistry and Molecular Engineering, Nanjing Tech University, Nanjing, 210009, China.
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42
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Electrochemical degradation of spent tributyl phosphate extractant by a boron-doped diamond anode. J Radioanal Nucl Chem 2017. [DOI: 10.1007/s10967-017-5635-x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
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43
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Li J, Luo G, He L, Xu J, Lyu J. Analytical Approaches for Determining Chemical Oxygen Demand in Water Bodies: A Review. Crit Rev Anal Chem 2017; 48:47-65. [DOI: 10.1080/10408347.2017.1370670] [Citation(s) in RCA: 47] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
- Ji Li
- School of Environment and Civil Engineering, Jiangnan University, Wuxi, China
| | - Guobing Luo
- Wuxi City Water Supply and Drainage Monitoring Station, Wuxi, China
| | - LingJun He
- Department of Housing and Urban Rural Development of Jiangsu Province, Nanjing, China
| | - Jing Xu
- Wuxi City Water Supply and Drainage Monitoring Station, Wuxi, China
| | - Jinze Lyu
- School of Environment and Civil Engineering, Jiangnan University, Wuxi, China
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Recio-Garrido D, Adekunle A, Perrier M, Raghavan V, Tartakovsky B. Wastewater Treatment and Online Chemical Oxygen Demand Estimation in a Cascade of Microbial Fuel Cells. Ind Eng Chem Res 2017. [DOI: 10.1021/acs.iecr.7b02586] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Didac Recio-Garrido
- Département
de Génie Chimique, École Polytechnique Montréal, C.P.6079
Succ., Centre-Ville Montréal, Quebec H3C 3A7, Canada
- National Research Council of Canada, 6100 Royalmount Avenue, Montréal, Quebec H4P 2R2, Canada
| | - Ademola Adekunle
- Department
of Bioresource Engineering, McGill University, 21111 Lakeshore Road, Ste-Anne-de-Bellevue, Quebec H9X 3 V9, Canada
- National Research Council of Canada, 6100 Royalmount Avenue, Montréal, Quebec H4P 2R2, Canada
| | - Michel Perrier
- Département
de Génie Chimique, École Polytechnique Montréal, C.P.6079
Succ., Centre-Ville Montréal, Quebec H3C 3A7, Canada
| | - Vijaya Raghavan
- Department
of Bioresource Engineering, McGill University, 21111 Lakeshore Road, Ste-Anne-de-Bellevue, Quebec H9X 3 V9, Canada
| | - Boris Tartakovsky
- National Research Council of Canada, 6100 Royalmount Avenue, Montréal, Quebec H4P 2R2, Canada
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