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Yilmaz T, Demir EK, Aşık G, Başaran ST, Cokgor E, Sözen S, Sahinkaya E. Performance of a high-rate membrane bioreactor for energy-efficient treatment of textile wastewater. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2024; 358:120845. [PMID: 38599093 DOI: 10.1016/j.jenvman.2024.120845] [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: 01/30/2024] [Revised: 03/27/2024] [Accepted: 04/02/2024] [Indexed: 04/12/2024]
Abstract
High-rate membrane bioreactors (MBR), where the wastewater undergoes partial oxidation due to the applied short sludge retention time (SRT) and hydraulic retention time (HRT) values, retain the majority of the organic substances in the sludge through growth and biological flocculation. Thus, a raw material source with a high biomethane production potential is created for the widespread use of circular economy or energy-neutral plants in wastewater treatment. While high-rate MBRs have been successfully employed for energy-efficient treatment of domestic wastewater, there is a lack of research specifically focused on textile wastewater. This study aimed to investigate the textile wastewater treatment and organic matter recovery performances of an aerobic MBR system containing a hollow fiber ultrafiltration membrane with a 0.04 μm pore diameter. The system was initially operated at short SRTs (5 and 3 d) and different SRT/HRT ratios (5, 10, and 20) and subsequently at high-rate conditions (SRT of 0.5-2 d and HRT of 1.2-9.6 h) which are believed to be the most limiting conditions tested for treatment of real textile wastewater. The results showed that chemical oxygen demand (COD) removal averaged 77% even at SRT of 0.5 d and HRT of 1.2 h. Slowly biodegradable substrates and soluble microbial products (SMP) accumulated within the MBR at SRT of 0.5 and 1 d, which resulted in decreased sludge filterability. The observed sludge yield (Yobs) exhibited a considerable increase when SRT was reduced from 5 to 1 d. On the other hand, the SRT/HRT ratio displayed a decisive effect on the energy requirement for aeration.
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Affiliation(s)
- Tülay Yilmaz
- Environmental Engineering Department, Istanbul Technical University, Maslak, 34469, Istanbul, Turkey; Science and Advanced Technologies Application and Research Center (BILTAM), Istanbul Medeniyet University, Istanbul, 34700, Turkey.
| | - Emir Kasım Demir
- Science and Advanced Technologies Application and Research Center (BILTAM), Istanbul Medeniyet University, Istanbul, 34700, Turkey; Department of Bioengineering, Istanbul Medeniyet University, Istanbul, 34700, Turkey
| | - Gulfem Aşık
- Department of Bioengineering, Istanbul Medeniyet University, Istanbul, 34700, Turkey
| | - Senem Teksoy Başaran
- Science and Advanced Technologies Application and Research Center (BILTAM), Istanbul Medeniyet University, Istanbul, 34700, Turkey; Department of Bioengineering, Istanbul Medeniyet University, Istanbul, 34700, Turkey
| | - Emine Cokgor
- Environmental Engineering Department, Istanbul Technical University, Maslak, 34469, Istanbul, Turkey
| | - Seval Sözen
- Environmental Engineering Department, Istanbul Technical University, Maslak, 34469, Istanbul, Turkey
| | - Erkan Sahinkaya
- Science and Advanced Technologies Application and Research Center (BILTAM), Istanbul Medeniyet University, Istanbul, 34700, Turkey; Department of Bioengineering, Istanbul Medeniyet University, Istanbul, 34700, Turkey
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Recent Advanced Development of Acid-Resistant Thin-Film Composite Nanofiltration Membrane Preparation and Separation Performance in Acidic Environments. SEPARATIONS 2022. [DOI: 10.3390/separations10010020] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023] Open
Abstract
Membrane filtration technology has attracted extensive attention in academia and industry due to its advantages of eco-friendliness related to environmental protection and high efficiency. Polyamide thin-film composite nanofiltration (PA TFC NF) membranes have been widely used due to their high separation performance. Non-acid-resistant PA TFC NF membranes face tremendous challenges in an acidic environment. Novel and relatively acid-resistant polysulfonamide-based and triazine-based TFC NF membranes have been developed, but these have a serious trade-off in terms of permeability and selectivity. Hence, how to improve acid resistance of TFC NF membranes and their separation performance in acidic environments is a pivotal issue for the design and preparation of these membranes. This review first highlights current strategies for improving the acid resistance of PA TFC NF membranes by regulating the composition and structure of the separation layer of the membrane performed by manipulating and optimizing the construction method and then summarizes the separation performances of these acid-resistant TFC NF membranes in acidic environments, as studied in recent years.
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Saeed MU, Hussain N, Sumrin A, Shahbaz A, Noor S, Bilal M, Aleya L, Iqbal HMN. Microbial bioremediation strategies with wastewater treatment potentialities - A review. THE SCIENCE OF THE TOTAL ENVIRONMENT 2022; 818:151754. [PMID: 34800451 DOI: 10.1016/j.scitotenv.2021.151754] [Citation(s) in RCA: 25] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/13/2021] [Revised: 11/05/2021] [Accepted: 11/13/2021] [Indexed: 02/08/2023]
Abstract
The demand for innovative waste treatment techniques has arisen because of the establishment and operation of rigorous waste discharge guidelines into the environment. Due to the rapid increase in the human population, wastewater treatment is a procedure of increasing significance. As a result, wastewater treatment systems are intended to sustain high activities and densities of such microorganisms which meet the different purification requirements. The waste produced by the pharmaceutical industry, if not adequately treated, has harmful repercussions for the environment as well as public health. Bioremediation is an innovative and optimistic technology that can be used to remove and reduce heavy metals from polluted water and contaminated soil. Because of cost-effectiveness and environmental compatibility, bioremediation using microorganisms has an excellent potential for future development. A diverse range of microorganisms, including algae, fungi, yeasts, and bacteria, can function as biologically active methylators, capable of modifying toxic species. Microorganisms play a crucial role in heavy metal bioremediation. Nanotechnology may minimize industry expenses by producing environmentally friendly nanomaterials to alleviate these contaminants. The use of microorganisms in nanoparticle synthesis gives green biotechnology a positive impetus to cost reduction and sustainable production as a developing nanotechnology sector.
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Affiliation(s)
- Muhammad Usama Saeed
- Center for Applied Molecular Biology (CAMB), University of the Punjab, Lahore, Pakistan
| | - Nazim Hussain
- Center for Applied Molecular Biology (CAMB), University of the Punjab, Lahore, Pakistan
| | - Aleena Sumrin
- Center for Applied Molecular Biology (CAMB), University of the Punjab, Lahore, Pakistan
| | - Areej Shahbaz
- Center for Applied Molecular Biology (CAMB), University of the Punjab, Lahore, Pakistan
| | - Saman Noor
- Atta-ur-Rahman School of Applied Biosciences (ASAB), National University of Sciences and Technology, Pakistan
| | - Muhammad Bilal
- School of Life Science and Food Engineering, Huaiyin Institute of Technology, Huaian 223003, China.
| | - Lotfi Aleya
- Chrono-Environment Laboratory, UMR CNRS 6249, Bourgogne Franche-Comté University, France
| | - Hafiz M N Iqbal
- Tecnologico de Monterrey, School of Engineering and Sciences, Campus Monterrey, Ave. Eugenio Garza Sada 2501, Monterrey, N.L. CP 64849, Mexico.
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A review of treatment methods for insensitive high explosive contaminated wastewater. Heliyon 2021; 7:e07438. [PMID: 34401549 PMCID: PMC8353291 DOI: 10.1016/j.heliyon.2021.e07438] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2021] [Revised: 03/01/2021] [Accepted: 06/25/2021] [Indexed: 11/28/2022] Open
Abstract
Insensitive high explosive materials (IHE) such as 3-nitro-1,2,4-triazol-5-one (NTO) and 2,4-dinitroanisole (DNAN) are increasingly being used in formulations of insensitive munitions alongside 1,3,5-trinitroperhydro-1,3,5-triazine (RDX). Load, assembly and packing (LAP) facilities that process munitions produce wastewater contaminated with IHE which must be treated before discharge. Some facilities can produce as much as 90,000 L of contaminated wastewater per day. In this review, methods of wastewater treatment are assessed in terms of their strengths, weaknesses, opportunities and threats for their use in production of IHE munitions including their limitations and how they could be applied to industrial scale LAP facilities. Adsorption is identified as a suitable treatment method, however the high solubility of NTO, up to 16.6 g.L−1 which is 180 times higher that of TNT, has the potential to exceed the adsorptive capacity of carbon adsorption systems. The key properties of the adsorptive materials along the selection of adsorption models are highlighted and recommendations on how the limitations of carbon adsorption systems for IHE wastewater can be overcome are offered, including the modification of carbons to increase adsorptive capacity or reduce costs.
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Carvalho MGP, Marcelino DMS, Menezes O, Foresti E, Damianovic MHZ, Kato MT, Florêncio L, Gavazza S. The influence of sulphate on the treatment of azo dye‐containing wastewater in an anaerobic‐microaerobic compartmentalized fixed‐bed bioreactor. CAN J CHEM ENG 2021. [DOI: 10.1002/cjce.24154] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Marcelo G. P. Carvalho
- Laboratório de Saneamento Ambiental, Departamento de Engenharia Civil e Ambiental Universidade Federal de Pernambuco Recife Brazil
- Instituto Federal do Piauí Teresina Brazil
| | - Denise M. S. Marcelino
- Laboratório de Saneamento Ambiental, Departamento de Engenharia Civil e Ambiental Universidade Federal de Pernambuco Recife Brazil
| | - Osmar Menezes
- Laboratório de Saneamento Ambiental, Departamento de Engenharia Civil e Ambiental Universidade Federal de Pernambuco Recife Brazil
| | - Eugenio Foresti
- Escola de Engenharia de São Carlos, Departamento de Hidráulica e Saneamento Universidade de São Paulo São Carlos Brazil
| | - Marcia H. Z. Damianovic
- Escola de Engenharia de São Carlos, Departamento de Hidráulica e Saneamento Universidade de São Paulo São Carlos Brazil
| | - Mario T. Kato
- Laboratório de Saneamento Ambiental, Departamento de Engenharia Civil e Ambiental Universidade Federal de Pernambuco Recife Brazil
| | - Lourdinha Florêncio
- Laboratório de Saneamento Ambiental, Departamento de Engenharia Civil e Ambiental Universidade Federal de Pernambuco Recife Brazil
| | - Savia Gavazza
- Laboratório de Saneamento Ambiental, Departamento de Engenharia Civil e Ambiental Universidade Federal de Pernambuco Recife Brazil
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Feng Q, Gao B, Yue Q, Guo K. Flocculation performance of papermaking sludge-based flocculants in different dye wastewater treatment: Comparison with commercial lignin and coagulants. CHEMOSPHERE 2021; 262:128416. [PMID: 33182118 DOI: 10.1016/j.chemosphere.2020.128416] [Citation(s) in RCA: 29] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/26/2020] [Revised: 08/25/2020] [Accepted: 09/20/2020] [Indexed: 05/26/2023]
Abstract
In this study, papermaking sludge-based flocculant (PSBF) and commercial lignin-based flocculant (LBF) have been synthesized by the same graft copolymerization procedures. The structures of alkaline lignin (AL), commercial lignin and the two flocculants were characterized by the modern analytical methods, also, the molecular weights and charge properties were analyzed. The effects of coagulant/flocculant dosages, pH conditions and coexistent dye auxiliaries on flocculation efficiencies were studied in the treatment of reactive turquoise blue (RTB) and disperse red (DR) dye wastewater. The flocculation experiments indicated that PSBF and LBF performed better in the removals of RTB and DR than commercial PAC and PAM. PSBF and LBF were insensitive to pH variation due to their strong charge neutralizing abilities and bridging effects even with the pH changing. In the existence of dye auxiliaries, PSBF and LBF could also exhibit superior decolorization efficiencies by slightly enlarging their dosages. Furthermore, PSBF and LBF had similar flocculation behaviors under all measured experimental conditions, suggesting that PSBF also had excellent flocculation performances even if it was prepared from papermaking sludge.
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Affiliation(s)
- Qiyun Feng
- Shandong Key Laboratory of Water Pollution Control and Resource Reuse, School of Environmental Science and Engineering, Shandong University, Qingdao, 266237, PR China
| | - Baoyu Gao
- Shandong Key Laboratory of Water Pollution Control and Resource Reuse, School of Environmental Science and Engineering, Shandong University, Qingdao, 266237, PR China.
| | - Qinyan Yue
- Shandong Key Laboratory of Water Pollution Control and Resource Reuse, School of Environmental Science and Engineering, Shandong University, Qingdao, 266237, PR China
| | - Kangying Guo
- Shandong Key Laboratory of Water Pollution Control and Resource Reuse, School of Environmental Science and Engineering, Shandong University, Qingdao, 266237, PR China
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Aziz A, Basheer F, Sengar A, Khan SU, Farooqi IH. Biological wastewater treatment (anaerobic-aerobic) technologies for safe discharge of treated slaughterhouse and meat processing wastewater. THE SCIENCE OF THE TOTAL ENVIRONMENT 2019; 686:681-708. [PMID: 31195278 DOI: 10.1016/j.scitotenv.2019.05.295] [Citation(s) in RCA: 85] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/16/2019] [Revised: 05/18/2019] [Accepted: 05/20/2019] [Indexed: 05/05/2023]
Abstract
Slaughterhouse industry generates considerable amount of wastewater rich in proteins, lipids, fibres, and carbohydrates. Numerous technologies such as electrocoagulation, membrane separation, advanced oxidation, physico-chemical processes, and biological treatment have been implemented for reducing the concentrations of these compounds. Nevertheless, this review aims to provide extensive information solely on the biological treatment (anaerobic and aerobic) of slaughterhouse wastewater. The advantages of anaerobic treatment are excellent organic matter removal, less sludge production, low energy requirement, execution of higher loading rates, and considerable production of biogas. Aerobic treatment on the other hand is a less sensitive process, possess lower start-up period, and efficient nutrient removal process. Numerous case studies are described to bestow maximum understanding of the wastewater characteristics, kind of treatment employed, and complications involved in managing and treating of slaughterhouse effluent. Additionally, role of microbial community involved in the treatment of slaughterhouse waste is also discussed. Sequential anaerobic and aerobic reactors are also reviewed in order to present their advantages over single bioreactors. Intermittent sequencing batch reactor is a promising technology than other high rate digesters in the removal of carbon, nitrogen, and phosphorous.
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Affiliation(s)
- Asad Aziz
- Department of Civil and Environmental Engineering, University of Auckland, New Zealand.
| | - Farrukh Basheer
- Department of Civil Engineering, Zakir Husain College of Engineering and Technology, Aligarh Muslim University, Aligarh 202002, India.
| | - Ashish Sengar
- Department of Civil Engineering, Indian Institute of Technology, New Delhi 110016, India
| | - Saif Ullah Khan
- Department of Civil Engineering, Zakir Husain College of Engineering and Technology, Aligarh Muslim University, Aligarh 202002, India
| | - Izharul Haq Farooqi
- Department of Civil Engineering, Zakir Husain College of Engineering and Technology, Aligarh Muslim University, Aligarh 202002, India
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8
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Xu S, Bi H, Liu G, Su B. Integration of catalytic ozonation and adsorption processes for increased efficiency of textile wastewater treatment. WATER ENVIRONMENT RESEARCH : A RESEARCH PUBLICATION OF THE WATER ENVIRONMENT FEDERATION 2019; 91:650-660. [PMID: 30859663 DOI: 10.1002/wer.1102] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/14/2018] [Revised: 03/04/2019] [Accepted: 03/05/2019] [Indexed: 06/09/2023]
Abstract
Advanced and optimized textile wastewater treatment by catalytic ozonation and activated carbon (AC) adsorption was investigated. Scanning electron microscopy, X-ray diffraction, and X-ray photoelectron spectroscopy indicated that Mn and Ce oxides were successfully loaded on the γ-Al2 O3 support, and MnO2 , Mn2 O3 , CeO2 , and Ce2 O3 were the main components of the catalyst. Actual textile wastewater from biochemical effluent was used as experiment wastewater. The removal efficiencies of chemical oxygen demand (COD) and chromaticity were approximately 30.6% (414-287 mg/L on average) and 99.3% (4,033 times to 27 times on average), respectively during the 30-day on-site continuous-flow test with an ozone dosage, contact time, and gas-liquid ratio of 100 mg/L, 15.7 min, and 2.9, respectively. Following 1 g/L AC adsorption, the effluent COD concentration was reduced to 40 mg/L. By contrast, AC adsorption without catalytic ozonation as pretreatment required 10 g/L AC dosage to achieve similar treatment results. Gas chromatography-mass spectrometry analyses indicated that volatile phenols, sulfides, and aniline in wastewater were completely removed after treatment. Inductively coupled plasma results further showed that the active components of MnOx -CeOx in the catalyst were stable after continuous use for 60 days. PRACTITIONER POINTS: Mesoporous catalyst synthesized by impregnating MnOx -CeOx on γ-Al2 O3 support. Catalytic ozonation and AC adsorption were combined to degrade organics. Maximum degradation of COD and chromaticity by optimizing process variables. The efficiency of the method was compared to that of single AC adsorption.
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Affiliation(s)
- Shengkai Xu
- College of Chemical Engineering, Beijing University of Chemical Technology, Beijing, China
| | - Huaqi Bi
- College of Chemical Engineering, Beijing University of Chemical Technology, Beijing, China
| | - Guangqing Liu
- College of Chemical Engineering, Beijing University of Chemical Technology, Beijing, China
| | - Bensheng Su
- College of Chemical Engineering, Beijing University of Chemical Technology, Beijing, China
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9
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Jayapal M, Jagadeesan H, Shanmugam M, Danisha J P, Murugesan S. Sequential anaerobic-aerobic treatment using plant microbe integrated system for degradation of azo dyes and their aromatic amines by-products. JOURNAL OF HAZARDOUS MATERIALS 2018; 354:231-243. [PMID: 29754041 DOI: 10.1016/j.jhazmat.2018.04.050] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/17/2017] [Revised: 03/24/2018] [Accepted: 04/21/2018] [Indexed: 06/08/2023]
Abstract
The presence of unused dyes and dye degradation intermediates in the textile industry wastewaters is the major challenge in its treatment. A wide range of treatments including various physicochemical processes are used for this wastewater. Incomplete dye degradation results in hazardous colorless aromatic amine intermediates that are teratogenic in nature. A synergistic plant-microbe system operated in a sequential anaerobic-aerobic mode was evaluated for the complete degradation of a model azo dye methyl red under laboratory conditions. The degradation of methyl red and its break down products 2-aminobenzoic acid and N,N-dimethyl-p-phenylenediamine were analysed by HPLC, FTIR and GC-MS. The vetiver-microbe system had shown enhanced dye degradation. The dye decolourization percentage achieved for integrated plant-microbe treatment system (T) after anaerobic condition was 53.5 ± 6.2% and aerobic condition was 92 ± 3.4%. The removal efficiency of the intermediates 2-ABA and DMPD was found to be 89.79% in the integrated plant-microbe treatment system. The plant-microbe system was most effective in the removal of toxic aromatic amine as seen by lesser phytotoxicity for seed germination and teratogenicity in case of zebrafish development in the treated water.
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Mandegari M, Fashandi H. Untapped potentials of acrylonitrile-butadiene-styrene/polyurethane (ABS/PU) blend membrane to purify dye wastewater. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2017; 197:464-475. [PMID: 28412618 DOI: 10.1016/j.jenvman.2017.04.026] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/30/2016] [Revised: 03/25/2017] [Accepted: 04/08/2017] [Indexed: 06/07/2023]
Abstract
Production of acrylonitrile-butadiene-styrene/polyurethane (ABS/PU) blend membrane with high rejection efficiency for disperse and vat dyes, is introduced as a facile and cost effective technique to purify textile wastewater. In this respect, membranes are produced using commercially available polymers, i.e. ABS and PU, with different compositions (ABS/PU: 100/0, 80/20, 70/30, 60/40 and 50/50 w/w) through wet casting. Casting solutions with concentration of 30 wt% are prepared using two different solvents, i.e. dimethylformamide (DMF) and N-methyl-2- pyrrolidone (NMP). The prepared membranes are characterized using a variety of analytical techniques including SEM imaging, FTIR spectroscopy, dry and wet gas permeation, evaluation of reusability, antifouling and mechanical properties, photostability, surface hydrophilicity and pure water permeability (PWP) of the produced membranes. According to the results, irrespective of solvent type, ABS/PU membranes with higher PU content have lower porosity and smaller pore size both of which contribute to enhanced dye rejection efficiency. This is while the impact of PU content on the photostability of ABS/PU membranes was found to be negligible. Additionally, the produced ABS/PU membranes exhibit good reusability and antifouling properties. However, the mechanical properties of ABS/PU membranes with higher PU contents are inferior to those with lower PU contents. This contrast highlights the prominence of optimum PU content to make a trade-off between dye rejection efficiency and mechanical properties. In this regard, ABS/PU (60/40 w/w) membrane is recognized as the one with optimum composition. Furthermore, it was found that regardless of PU content, membranes cast from DMF-based solutions exhibit superior rejection performance over those cast from NMP-based solutions. Overall, one can witness that employing ABS/PU membranes provides a meritorious and clean approach to refine disperse and vat dye wastewaters, a great threat to the environment and human health.
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Affiliation(s)
- Mansoor Mandegari
- Department of Textile Engineering, Isfahan University of Technology, Isfahan, 84156-83111, Iran
| | - Hossein Fashandi
- Department of Textile Engineering, Isfahan University of Technology, Isfahan, 84156-83111, Iran.
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Comparative study on the biodegradation of mixed remazol dyes wastewater between integrated anaerobic/aerobic and aerobic sequencing batch reactors. RENDICONTI LINCEI 2017. [DOI: 10.1007/s12210-017-0622-2] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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Tao X, Wang G, Huang L, Ye Q, Xu D. A novel two-level dielectric barrier discharge reactor for methyl orange degradation. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2016; 184:480-486. [PMID: 27784581 DOI: 10.1016/j.jenvman.2016.10.038] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/10/2016] [Revised: 10/14/2016] [Accepted: 10/18/2016] [Indexed: 06/06/2023]
Abstract
A novel pilot two-level dielectric barrier discharge (DBD) reactor has been proposed and applied for degradation of continuous model wastewater. The two-level DBD reactor was skillfully realized with high space utilization efficiency and large contact area between plasma and wastewater. Various conditions such as applied voltage, initial concentration and initial pH value on methyl orange (MO) model wastewater degradation were investigated. The results showed that the appropriate applied voltage was 13.4 kV; low initial concentration and low initial pH value were conducive for MO degradation. The percentage removal of 4 L MO with concentration of 80 mg/L reached 94.1% after plasma treatment for 80min. Based on ultraviolet spectrum (UV), Infrared spectrum (IR), liquid chromatography-mass spectrometry (LC-MS) analysis of degradation intermediates and products, insights in the degradation pathway of MO were proposed.
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Affiliation(s)
- Xumei Tao
- College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao 266042, Shandong, China.
| | - Guowei Wang
- College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao 266042, Shandong, China
| | - Liang Huang
- College of Electromechanical Engineering, Qingdao University of Science and Technology, Qingdao 266042, Shandong, China
| | - Qingguo Ye
- College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao 266042, Shandong, China
| | - Dongyan Xu
- College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao 266042, Shandong, China
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Ghorbani F, Kamari S. Application of response surface methodology for optimization of methyl orange adsorption by Fe-grafting sugar beet bagasse. ADSORPT SCI TECHNOL 2016. [DOI: 10.1177/0263617416675625] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Affiliation(s)
- Farshid Ghorbani
- Department of Environmental Science, Faculty of Natural Resource, University of Kurdistan, Sanandaj, Iran
| | - Soran Kamari
- Department of Environmental Science, Faculty of Natural Resource, University of Kurdistan, Sanandaj, Iran
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14
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Wang J, Xu W, Yan J, Yu J. Study on the flow characteristics and the wastewater treatment performance in modified internal circulation reactor. CHEMOSPHERE 2014; 117:631-637. [PMID: 25461928 DOI: 10.1016/j.chemosphere.2014.09.088] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/26/2014] [Revised: 09/27/2014] [Accepted: 09/30/2014] [Indexed: 06/04/2023]
Abstract
A modified internal circulation (MIC) reactor with an external circulation system was proposed and the performance of treating dyeing wastewater using both MIC and typical IC reactor were compared. Utilization of the external circulation system in the MIC reactor could dramatically improve the mixing intensity of the biomass with the wastewater and resulted in better performance. The COD removal efficiency, biogas production, volatile fatty acids and effluent color were approximately 87%, 98 L d−1, 180 mg L−1 and 100 times, respectively, in the MIC reactor with a hydraulic retention time of 5 h and organic loading rate of 15 kg COD m−3 d−1. The hydrodynamics of the MIC reactor under different flows rate of external circulation were also analyzed using computational fluid dynamics (CFD) method. The optimal flow rate of external circulation was 12 L min−1, which resulted in a corresponding up-flow velocity of 40 m h−1. The consistency of the result between experiment and simulation validated the scientificity of CFD technique applied to numerical simulation of the MIC reactor.
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Affiliation(s)
- Jiade Wang
- College of Biological and Environmental Engineering, Zhejiang University of Technology, No. 18 Chao Wang Road, Hangzhou, PR
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Murali V, Ong SA, Ho LN, Wong YS. Evaluation of integrated anaerobic-aerobic biofilm reactor for degradation of azo dye methyl orange. BIORESOURCE TECHNOLOGY 2013; 143:104-111. [PMID: 23792659 DOI: 10.1016/j.biortech.2013.05.122] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/15/2013] [Revised: 05/30/2013] [Accepted: 05/30/2013] [Indexed: 06/02/2023]
Abstract
This study was to investigate the mineralization of wastewater containing methyl orange (MO) in integrated anaerobic-aerobic biofilm reactor with coconut fiber as bio-material. Different aeration periods (3h in phase 1 and 2; 3, 6 and 15 h in phase 3; 24 h in phase 4 and 5) in aerobic chamber were studied with different MO concentration 50, 100, 200, 200 and 300 mg/L as influent from phase 1-5. The color removals estimated from the standard curve of dye versus optical density at its maximum absorption wavelength were 97%, 96%, 97%, 97%, and 96% and COD removals were 75%, 72%, 63%, 81%, and 73% in phase 1-5, respectively. The MO decolorization and COD degradation followed first-order kinetic model and second-order kinetic model, respectively. GC-MS analysis indicated the symmetrical cleavage of azo bond and the reduction in aromatic peak ensured the partial mineralization of MO.
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Affiliation(s)
- V Murali
- School of Environmental Engineering, Universiti Malaysia Perlis, 02600 Arau, Perlis, Malaysia.
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Asadi A, Zinatizadeh AAL, Hasnain Isa M. Performance of intermittently aerated up-flow sludge bed reactor and sequencing batch reactor treating industrial estate wastewater: a comparative study. BIORESOURCE TECHNOLOGY 2012; 123:495-506. [PMID: 22940360 DOI: 10.1016/j.biortech.2012.07.013] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/03/2012] [Revised: 07/03/2012] [Accepted: 07/07/2012] [Indexed: 06/01/2023]
Abstract
In this study, an innovative aerobic/anoxic sludge bed bioreactor with two feeding regimes, continuous-fed (an up-flow sludge bed reactor (USBR)) and batch fed (sequencing batch reactor (SBR)), was evaluated for the treatment of an industrial estate wastewater with low BOD(5)/COD ratio. The process performance in the two regimes was compared. Two numerical independent variables (retention/react time and aeration time) were selected to analyze, model and optimize the process. Response surface methodology with central composite design (CCD) was used with five levels of hydraulic retention time (HRT)/react time (12-36h) and aeration time (40-60min/h). In order to analyze the process, ten dependent parameters as the process responses were studied. As a result, HRT/react time showed a decreasing impact on the responses measured in both hydraulic regimes, USBR and SBR. The USBR showed better performance than the SBR in removal of total COD, slowly biodegradable COD, total nitrogen and total Kjeldahl nitrogen.
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Affiliation(s)
- A Asadi
- Water and Wastewater Research Center (WWRC), Department of Applied Chemistry, Faculty of Chemistry, Razi University, Kermanshah, Iran
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Andalib M, Hafez H, Elbeshbishy E, Nakhla G, Zhu J. Treatment of thin stillage in a high-rate anaerobic fluidized bed bioreactor (AFBR). BIORESOURCE TECHNOLOGY 2012; 121:411-418. [PMID: 22864177 DOI: 10.1016/j.biortech.2012.07.008] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/22/2012] [Revised: 07/05/2012] [Accepted: 07/07/2012] [Indexed: 06/01/2023]
Abstract
The primary objective of this work was to investigate the treatability of thin stillage as a by-product of bioethanol production plants using an anaerobic fluidized bed bioreactor (AFBR) employing zeolite with average diameter of (d(m)) of 425-610 μm and specific surface area (SSA) of 26.5m(2)/g as the carrier media. Despite the very high strength of thin stillage with chemical oxygen demand of 130,000 mg TCOD/L and suspended solids of 47,000 mg TSS/L, the AFBR showed up to 88% TCOD and 78% TSS removal at very high organic and solids loading rates (OLR and SLR) of 29 kg COD/m(3)d and 10.5 kg TSS/m(3)d respectively and hydraulic retention time (HRT) of 3.5 days. Methane production rates of up to 160 L/d at the steady state equivalent to 40 L(CH4)/L(thin stillage)d and biogas production rate per reactor volume of 15.8L(gas)/L(reactor)d were achieved.
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Affiliation(s)
- Mehran Andalib
- Department of Chemical and Biochemical Engineering, University of Western Ontario, London, Ontario, Canada
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Sequential Anaerobic/Aerobic Treatment of Dye-Containing Wastewaters: Colour and COD Removals, and Ecotoxicity Tests. Appl Biochem Biotechnol 2012; 166:1057-69. [DOI: 10.1007/s12010-011-9493-7] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2011] [Accepted: 12/06/2011] [Indexed: 10/14/2022]
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Chegoonian P, Feiz M, Ravandi SAH, Mallakpour S. Preparation of sulfonated poly(ethylene terephthalate) submicron fibrous membranes for removal of basic dyes. J Appl Polym Sci 2012. [DOI: 10.1002/app.35167] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Senthilkumar M, Gnanapragasam G, Arutchelvan V, Nagarajan S. Influence of hydraulic retention time in a two-phase upflow anaerobic sludge blanket reactor treating textile dyeing effluent using sago effluent as the co-substrate. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2011; 18:649-654. [PMID: 21063797 DOI: 10.1007/s11356-010-0409-9] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/11/2010] [Accepted: 10/26/2010] [Indexed: 05/30/2023]
Abstract
PURPOSE Textile dyeing and sago industries are the most polluting industries in South India, especially in industrial cities like Salem, Tamil Nadu, where textile dyeing and sago industries are clumped together geographically. Conventional physicochemical treatment followed by biological processes for the effluent generated from these industries are ineffective, costlier and produce huge quantities of hazardous sludge and harmful by-products which requires further treatment and safe disposal. Hence, the development of an alternative treatment method will become important. The main objective of this investigation is to establish a sustainable biotreatment technology for the treatment of textile dyeing effluent using sago effluent as co-substrate in a two-phase upflow anaerobic sludge blanket (UASB) reactor. METHODS In this study, influence of hydraulic retention time (HRT) in a two-phase UASB reactor treating textile dyeing effluent using sago effluent as co-substrate was investigated with different HRTs (36, 30, 24 and 18 h) with an optimum mixing ratio of 70:30 (sago to textile dye wastewaters). RESULTS The results revealed that the HRT had a high influence on the chemical oxygen demand (COD) and colour removal. The maximum COD removal efficiency of 39.4% and 88.5% and colour removal efficiency of 43.7% and 84.4% in the acidogenic and methanogenic reactors, respectively was achieved at 24 h of HRT. The biogas production was 312 L/day. CONCLUSION The biphasic UASB reactor could be a very feasible alternative, cost-effective, eco-friendly and sustainable treatment system for textile dyeing effluent with sago effluent as a co-substrate.
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Affiliation(s)
- M Senthilkumar
- Department of Civil Engineering, Annamalai University, Annamalai Nagar, 608002, Tamil Nadu, India.
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Sandić ZP, Nastasović AB, Jović-Jovičić NP, Milutinović-Nikolić AD, Jovanović DM. Sorption of textile dye from aqueous solution by macroporous amino-functionalized copolymer. J Appl Polym Sci 2011. [DOI: 10.1002/app.33537] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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Fu Z, Zhang Y, Wang X. Textiles wastewater treatment using anoxic filter bed and biological wriggle bed-ozone biological aerated filter. BIORESOURCE TECHNOLOGY 2011; 102:3748-3753. [PMID: 21186119 DOI: 10.1016/j.biortech.2010.12.002] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/15/2010] [Revised: 11/29/2010] [Accepted: 12/01/2010] [Indexed: 05/30/2023]
Abstract
In this study, the performance of the anoxic filter bed and biological wriggle bed-ozone biological aerated filter (AFB-BWB-O(3)-BAF) process treating real textile dyeing wastewater was investigated. After more than 2 month process operation, the average effluent COD concentration of the AFB, BWB, O(3)-BAF were 704.8 mg/L, 294.6 mg/L and 128.8 mg/L, with HRT being 8.1-7.7h, 9.2h and 5.45 h, respectively. Results showed that the effluent COD concentration of the AFB decreased with new carriers added and the average removal COD efficiency was 20.2%. During operation conditions, HRT of the BWB and O(3)-BAF was increased, resulting in a decrease in the effluent COD concentration. However, on increasing the HRT, the COD reduction capability expressed by the unit carrier COD removal loading of the BWB reactor increased, while that of the O(3)-BAF reactor decreased. This study is a beneficial attempt to utilize the AFB-BWB-O(3)-BAF combine process for textile wastewater treatment.
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Affiliation(s)
- Zhimin Fu
- Guangdong Esquel Textile Co., Ltd., 528500 FoShan, Guangdong Province, PR China.
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Somasiri W, Li XF, Ruan WQ, Jian C. Evaluation of the efficacy of upflow anaerobic sludge blanket reactor in removal of colour and reduction of COD in real textile wastewater. BIORESOURCE TECHNOLOGY 2008; 99:3692-9. [PMID: 17719776 DOI: 10.1016/j.biortech.2007.07.024] [Citation(s) in RCA: 62] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/05/2007] [Revised: 07/11/2007] [Accepted: 07/13/2007] [Indexed: 05/16/2023]
Abstract
The upflow anaerobic sludge blanket (UASB) reactor was evaluated for its efficacy in decolourization and reduction in chemical oxygen demand (COD) of real textile wastewater (RTW) under different operational conditions. The efficiency of UASB reactor in reducing COD was found to be over 90%. Over 92% of colour removal due to biodegradation was achieved. The activities of the anaerobic granules were not affected during the treatment of textile wastewater. Cocci-shaped bacteria were the dominant group over Methanothrix like bacteria in textile wastewater treatment. Alkalinity, volatile fatty acids (VFA) content and pH in effluents indicated that the anaerobic process was not inhibited by textile wastewater. It is concluded that UASB reactor system can effectively be used in the treatment of textile wastewater for the removal of colour and in the reduction of COD.
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Affiliation(s)
- Wijetunga Somasiri
- Department of Agricultural Engineering, Faculty of Agriculture, University of Ruhuna, Kamburupitiya, Sri Lanka.
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Jović-Jovičić N, Milutinović-Nikolić A, Gržetić I, Jovanović D. Organobentonite as Efficient Textile Dye Sorbent. Chem Eng Technol 2008. [DOI: 10.1002/ceat.200700421] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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Yamada K, Takagi C, Hirata M. Adsorption and desorption properties of expanded poly(tetrafluoroethylene) films grafted with DMAEMA and their regeneration. J Appl Polym Sci 2007. [DOI: 10.1002/app.26131] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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