scholarly journals Integrated Membrane–Electrocoagulation System for Removal of Celestine Blue Dyes in Wastewater

Membranes ◽  
2020 ◽  
Vol 10 (8) ◽  
pp. 184
Author(s):  
Muhammad Syaamil Saad ◽  
Lila Balasubramaniam ◽  
Mohd Dzul Hakim Wirzal ◽  
Nur Syakinah Abd Halim ◽  
Muhammad Roil Bilad ◽  
...  
Keyword(s):  
Textile Industry ◽  
Membrane Filtration ◽  
Dye Removal ◽  
Textile Wastewater ◽  
Membrane System ◽  
Electrolytic Cell ◽  
Integrated System ◽  
Superior Performance ◽  
Blue Dye ◽  
Celestine Blue

The textile industry provides for the needs of people especially in apparel and household items. The industry also discharges dye-containing wastewater that is typically challenging to treat. Despite the application of the biological and chemical treatments for the treatment of textile wastewater, these methods have their own drawbacks such as non-environment friendly, high cost and energy intensive. This research investigates the efficiency of the celestine blue dye removal from simulated textile wastewater by electrocoagulation (EC) method using iron (Fe) electrodes through an electrolytic cell, integrated with nylon 6,6 nanofiber (NF) membrane filtration for the separation of the flocculants from aqueous water. Based on the results, the integrated system achieves a high dye removal efficiency of 79.4%, by using 1000 ppm of sodium chloride as the electrolyte and 2 V of voltage at a constant pH of 7 and 10 ppm celestine blue dye solution, compared to the standalone EC method in which only 43.2% removal was achieved. Atomic absorption spectroscopy analysis was used to identify the traces of iron in the residual EC solution confirming the absence of iron. The EC-integrated membrane system thus shows superior performance compared to the conventional method whereby an additional 10–30% of dye was removed at 1 V and 2 V using similar energy consumptions.

scholarly journals The Removal of Terasil Navy Blue Dye from Al-Kut Textile Wastewater Using Membrance Technologies

2018 ◽  
Vol 7 (4.20) ◽  
pp. 557 ◽  
Author(s):  
Hatem Asal Gzar ◽  
Zahraa Khalid shhaieb
Keyword(s):  
Textile Industry ◽  
Dye Removal ◽  
Textile Wastewater ◽  
Disperse Dyes ◽  
Blue Dye ◽  
Operating Pressure ◽  
Permeate Flux ◽  
Positive Effects ◽  
The Common ◽  
Feed Temperature

The current work was devoted to study the operating feasibility using membranes which were manufactured locally, two membrance types were tested nanofiltration (NF) and ultrafiltration (UF) membrane to treat the effluent of Al-kut textile industry. Based on the usage rate in Iraq textile industries, terasil navy blue (TNB) is one of the common disperse dyes discharged in effluent wastewater. Therefore this type of dyes was selected to experience in this study. Parameters such as effects of TNB concentration, feed temperature and operating pressure and its effect on permeate flux noticed and the TNB rejection were investigated. The results show that when using NF system at pressure of 10 bar and when the temperature increased from 25ºC to 37ºC, it was found that an increase in permeate flux from 46.97 to 50 LMH.  However, in UF system permeate flux was increased from 41.32 to 45.04 LMH.  While dye removal was decline in NF membrane from 96.00 to 95.14 and for UF from 79.50 to 78.67 when the temperature raised from 25ºC to 37ºC.The pressure state positive effects on dye removal for both membranes, it show that NF membrane is better in treatment than UF membrane.  

scholarly journals Removal of Dye and COD from Textile Wastewater Using AOP (UV/O3, UV/H2O2, O3/H2O2 and UV/H2O2/O3)

2018 ◽  
pp. 621-629 ◽  
Author(s):  
Mehrangiz Pourgholi ◽  
Reza Masoomi Jahandizi ◽  
Mohammadbagher Miranzadeh ◽  
Ommolbanin Hassan Beigi ◽  
Samaneh Dehghan
Keyword(s):  
Textile Industry ◽  
Dye Removal ◽  
Treatment Time ◽  
Reaction Times ◽  
Oxygen Demand ◽  
Advanced Oxidation ◽  
Textile Wastewater ◽  
Time Duration ◽  
Batch System ◽  
Industry Effluent

Introduction: Textile industry effluent is a complex sewage with chemical and color materials that is discharged into the environment and can cause serious problems. In this way using advanced oxidation methods and finding the best methods for removing color materials is necessary. An experimental method was done on Kashan textile industry effluent in laboratory scale and batch system. Material and Methods: Initially, optimal condition was obtained for O3 and H2O2 and followed by advanced oxidation methods (UV/O3, UV/H2O2, O3/H2O2 and UV/H2O2/O3) in different reaction times and pH on dye removal and COD (chemical oxygen demand) were determined. The results were compared with complex repetition method. Results: The results of this research showed that dye removal impact and COD based on the type of process and reaction time in UV/H2O2/O3 by 30 minute time duration, was the most effective method. UV/H2O2 in 10 minute time duration was the least effective method. COD and color removal, based on the process in UV/H2O2/O3 and pH = 6 was the most effective. The effect of UV/H2O2 and pH = 4 was the least efficient method on dye material removing. Results showed that the treatment time was effective on color removing (P < 0/001) statistically. Conclusion: It can be concluded that UV/H2O2/O3 was the most efficient on color removing process, compared to the others, due to co-incidence presence of strongly numerous oxidants and their aggravating effect through producing active hydroxyl radicals (OH˚).

scholarly journals Antifouling Polyethersulfone-Petrol Soot Nanoparticles Composite Ultrafiltration Membrane for Dye Removal in Wastewater

Membranes ◽  
2021 ◽  
Vol 11 (5) ◽  
pp. 361
Author(s):  
Nkechi P. Nwafor ◽  
Richard M. Moutloali ◽  
Keneiloe Sikhwivhilu ◽  
Oluwole B. Familoni ◽  
Luqman A. Adams
Keyword(s):  
Composite Membrane ◽  
Membrane Filtration ◽  
Dye Removal ◽  
Pure Water ◽  
Water Flux ◽  
Composite Membranes ◽  
Water Remediation ◽  
Blue Dye ◽  
Phase Inversion Technique ◽  
Pure Water Flux

Engineered nanoparticles are known to boost membrane performance in membrane technology. Hitherto, tunable properties that lead to improved hydrophilicity due to increased surface oxygen functionalities upon oxidation of petrol soot have not been fully exploited in membrane filtration technology. Herein, the integration of oxidized petrol soot nanoparticles (PSN) into polyethersulfone ultrafiltration membranes produced via phase inversion technique for dye removal in wastewater is reported. The nanoparticles, as well as the composite membranes, were characterized with diverse physicochemical methods, particularly TEM, SEM, BET, AFM, contact angle, etc. The effect of varying the ratio of PSN (0.05–1.0 wt %) on the properties of the composite membrane was evaluated. The composite membranes displayed increased hydrophilicity, enhanced pure water flux, and antifouling properties relative to the pristine membrane. For example, the obtained pure water flux increased from 130 L·m−2·h−1 for base membrane to 265 L·m−2·h−1 for the best composite membrane (M4). The best flux recovery ratio (FRR) observed for the membranes containing PSN was ca. 80% in contrast to 49% obtained with the pristine membrane indicative of the positive influence of PSN on membrane antifouling behavior. Furthermore, the PSN composite membranes displayed relatively selective anionic dye rejection of ˃95% for Congo red and between 50–71% for methyl orange compared with 42–96% rejection obtained for cationic methylene blue dye with increasing PSN content. The successful fabrication of polyethersulfone–PSN composite membranes by a simple blending process opens a novel route for the preparation of economical, functional, and scalable water purification membranes capable of addressing the complex issue of water remediation of organic azo dyes.

scholarly journals Kinetics of COD and Dye Removal for Waste Water from Textile Industry

2021 ◽  
Vol 9 (9) ◽  
pp. 237-244
Author(s):  
Heena Rani Bindala
Keyword(s):  
Waste Water ◽  
Water Pollution ◽  
Activated Carbon ◽  
Textile Industry ◽  
Dye Removal ◽  
Textile Wastewater ◽  
Electrochemical Treatment ◽  
Efficient Treatment ◽  
Treatment Technologies ◽  
Kinetics Of

Abstract: Water pollution poses serious threats to both the environment and the organisms that depend on their environment for survival. Due to the toxicity from dyes in textile wastewater, there is a dire need for the development of innovative and efficient treatment technologies. In this study treatability studies, using a electrochemical treatment (ECT) method followed by activated carbon (AC) based adsorption. ECT method was studied extensively for the treatment of reactive black dye. Moreover, to understand the practical applicability of ECTs, the findings were optimized for treatment of synthetic textile wastewater (STW).

scholarly journals Nanofibers for textile waste water management

2019 ◽  
Vol 14 (2) ◽  
pp. 297-310 ◽  
Author(s):  
Joginder singh Paneysar ◽  
Snehal Sawant ◽  
Meng Hei Ip ◽  
Sukhwinder kaur Bhullar ◽  
Stephen Barton ◽  
...  
Keyword(s):  
Textile Industry ◽  
Dye Removal ◽  
Dye Adsorption ◽  
Textile Wastewater ◽  
Wastewater Management ◽  
Freundlich Isotherms ◽  
Responsive Polymers ◽  
Dual Responsive ◽  
Ft Ir ◽  
Scavenging Efficiency

Abstract Currently, textile wastewater management focuses on dye removal efficiency and operating costs. Dual responsive polymers are choice materials because they can extract diverse organic compounds from water at their phase transition point. They are copolymers of the acrylamide class, and have been fully characterized by FT-IR, 1H-NMR, DSC, GPC and surface area analysis. Of the five dual responsive polymers, the copolymer of NIPAAM and DMAEMA (CoP-1) offers the best extraction of acidic and basic dyes from wastewater. All copolymers investigated can achieve better than 90% dye removal when used at 4 mg/ml concentration. This dye-scavenging efficiency increases to almost 99% at 3 mg/ml, on conversion of the copolymers to nanofibers in 300 to 500 nm size. Langmuir and Freundlich isotherms were constructed to study the mechanism of dye adsorption. The nanofibers have been shown to be reusable for removal of dyes from water, suggesting that such systems may add benefit to current dye removal methods from textile industry wastewater.

scholarly journals Dye Removal from Water and Wastewater Using Various Physical, Chemical, and Biological Processes

2018 ◽  
Vol 101 (5) ◽  
pp. 1371-1384 ◽  
Author(s):  
Krzysztof Piaskowski ◽  
Renata Świderska-Dąbrowska ◽  
Paweł K Zarzycki
Keyword(s):  
Textile Industry ◽  
Membrane Filtration ◽  
Carbon Nanomaterials ◽  
Dye Removal ◽  
Low Cost ◽  
Synthetic Dyes ◽  
Green Algal ◽  
Exchange Adsorption ◽  
Water Ecosystems ◽  
Synthetic Colorants

Abstract Synthetic dyes or colorants are key chemicals for various industries producing textiles, food, cosmetics, pharmaceutics, printer inks, leather, and plastics. Nowadays, the textile industry is the major consumer of dyes. The mass of synthetic colorants used by this industry is estimated at the level of 1 ÷ 3 × 105 tons, in comparison with the total annual consumption of around 7 × 105 tons worldwide. Synthetic dyes are relatively easy to detect but difficult to eliminate from wastewater and surface water ecosystems because of their aromatic chemical structure. It should be highlighted that the relatively high stability of synthetic dyes leads to health and ecological concerns due to their toxic, mutagenic, and carcinogenic nature. Currently, removal of such chemicals from wastewater involves various techniques, including flocculation/coagulation, precipitation, photocatalytic degradation, biological oxidation, ion exchange, adsorption, and membrane filtration. In this review, a number of classical and modern technologies for synthetic dye removal from industry-originated wastewater were summarized and discussed. There is an increasing interest in the application of waste organic materials (e.g., compounds extracted from orange bagasse, fungus biosorbent, or green algal biomasses) as effective, low-cost, and ecologically friendly sorbents. Moreover, a number of dye removal processes are based on newly discovered carbon nanomaterials (carbon nanotubes and graphene as well as their derivatives).

scholarly journals Investigate the Antibacterial Activity of Lichen Biomass Used in Textile Dye Removal

2020 ◽  
Vol 11 (2) ◽  
pp. 117
Author(s):  
Ülküye Dudu Gül
Keyword(s):  
Textile Industry ◽  
Biological Treatment ◽  
Dye Removal ◽  
Antimicrobial Properties ◽  
Textile Wastewater ◽  
Antimicrobial Effect ◽  
Textile Dye ◽  
Synthetic Dyes ◽  
Biosorption Process ◽  
Treatment Technologies

All over the world, the treatment of textile wastewater has become a significant problem due to the development of the textile industry. Particularly, the treatment of synthetic dyes, which are found abundantly amounts in textile wastewater, has gained importance. Recent studies have focused on the use of biological treatment technologies to remove pollutants in water. On the other hand, the disposal of wastes from biological treatment technologies was considered as another environmental problem. This study aims to compare the antimicrobial properties of the extract obtained from dye loaded and un-loaded lichen biomass after the biosorption process. According to the results of this study, it was found that the extract obtained from the waste lichen biomass, which has loaded with the textile dye in the decolorization process, showed a similar antimicrobial effect with the unloaded lichen extract. To sum up the waste lichen biomass used to remove textile dyes can be reused for the application of antimicrobial products.

scholarly journals Diatomite Chemical Activation for Effective Adsorption of Methylene Blue Dye from Model Textile Wastewater

2021 ◽  
Vol 12 (1) ◽  
pp. 23-28
Author(s):  
Parisa Ebrahimi ◽  
◽  
Anand Kumar
Keyword(s):  
Methylene Blue ◽  
Surface Characterization ◽  
Dye Removal ◽  
Low Cost ◽  
Chemical Activation ◽  
Textile Wastewater ◽  
Blue Dye ◽  
Dye Wastewater ◽  
Experimental Conditions ◽  
Basic Solutions

Dye wastewater produced in textile industries is a warning issue that threatens the environment due to discharge into the waterway. This study reviewed the adsorption of Methylene Blue (MB), as a toxic dye, onto diatomite adsorbent. A series of chemical modifications were examined by impregnating diatomite into various acidic and basic solutions to obtain the most active sample with the highest capacity. Both raw diatomite (RD) and modified diatomite (MD) were analyzed under different experimental conditions, such as PH, contact time, the dose of adsorbent to attain the optimum quantities of each in which adsorption capacity and removal percentage were in their highest amount. FESEM analysis indicated the surface characterization and the morphology of both adsorbents. The results of batch experiments showed that the equilibration removal capacities of MB under the optimum condition were 72 mg/g for RD and 127 mg/g for MD. Overall results suggested that due to the low-cost, naturally available, simple treatment methods and materials, and sustainability, the modified adsorbent has the potential for dye removal in the practical process.

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