scholarly journals Adsorption Characteristics of Banana Peel in the Removal of Dyes from Textile Effluent

Textiles ◽  
2021 ◽  
Vol 1 (2) ◽  
pp. 361-375
Author(s):  
Maimuna Akter ◽  
Fahim Bin Abdur Rahman ◽  
M. Zainal Abedin ◽  
S M Fijul Kabir
Keyword(s):  
Textile Industry ◽  
Dye Adsorption ◽  
Textile Wastewater ◽  
Reactive Dye ◽  
Textile Effluent ◽  
Polluted Water ◽  
Banana Peel ◽  
Adsorption Parameters ◽  
Actual Wastewater ◽  
Isotherm And Kinetic Models

Disposal of reactive dye contaminants in surface waters causes serious health risks to the aquatic living bodies and populations adjacent to the polluted water sources. This study investigated the applicability of banana peels to remediate water contamination with reactive dyes used in the textile industry. A set of batch experiments was conducted using a standard dye solution to determine optimum adsorption parameters, and these parameters were used for the removal of dyes from actual wastewater. Fitting experimental data into the isotherm and kinetic models suggested monolayer dye adsorption with chemisorption rate-limiting step. The maximum adsorption found from modeling results was 28.8 mg/g. Fourier transformed infrared (FTIR) spectra revealed the existence of hydroxyl, amine and carboxylic groups, contributing to high adsorption of dye molecules onto the adsorbent surface. About 93% of the dyes from the standard solution were removed at optimum conditions (pH—7.0, initial dye concentration—100 mg/L, contact time—60 min, and adsorbent dose—0.5 g) while this value was 84.2% for industrial textile wastewater. This difference was mainly attributed to the composition difference between the solutions. However, the removal efficiency for actual wastewater is still significant, indicating the high potentiality of banana peel removing dyes from textile effluent. Furthermore, desorption studies showed about 95% of banana peel can be recovered with simple acid-base treatment.

Removal of Dyes from the Textile Industry by Adsorption in Fixed Bed Columns: A Sustainable Process

2009 ◽  
Vol 4 (4) ◽  
Author(s):  
Andressa Regina Vasques ◽  
Selene Maria Arruda Guelli Ulson de Souza ◽  
José Alexandre Borges Valle ◽  
Antônio Augusto Ulson de Souza
Keyword(s):  
Textile Industry ◽  
Fixed Bed ◽  
Dye Adsorption ◽  
Textile Wastewater ◽  
Reactive Dye ◽  
Breakthrough Curves ◽  
Maximum Adsorption Capacity ◽  
Fixed Bed Adsorption ◽  
Different Temperatures ◽  
Textile Wastewater Treatment

The capacity and mechanism of mono and bi-functional reactive dye adsorption utilizing a new adsorbent obtained from the dried residual sludge (~10% w.w.) of a textile wastewater treatment system was studied. With the focus on determining the efficiency of the adsorbent in the dye removal, the adsorption isotherms were determined for the reactive dyes RR2 and RR141, at different temperatures and salt concentrations. The experiments were carried out in fixed bed adsorption columns, which were defined as the best adsorption experimental condition for both of the dyes through the parameter qm (mg/g), obtained by the adjustment of Langmuir isotherms. Breakthrough curves for the dyes RR2 and RR141 were obtained varying the height to which the fixed bed columns were packed with adsorbent (15, 30 and 45 cm) and varying the adsorbate feed rate in the column (8, 12 and 16 ml/min). For the dye RR2 the maximum adsorption capacity was 53.48 mg/g and for the dye RR141 it was 78.74 mg/g.

scholarly journals Treatment of Pretreated Textile Wastewater Using Modified Mbbr

2018 ◽  
Vol 7 (3.8) ◽  
pp. 106
Author(s):  
K J.Sosamony ◽  
P A.Soloman
Keyword(s):  
Magnetic Field ◽  
Textile Industry ◽  
Contact Time ◽  
Textile Wastewater ◽  
Filling Ratio ◽  
Textile Effluent ◽  
Fundamental Parameters ◽  
Film Reactor ◽  
Textile Sludge ◽  
Chemical Strategies

Currently, water pollution control is one of the major logical zones. The textile industry is a major pollution causing industry among the industrial pollutions. Treatment of textile effluent utilizing customary physical as well as chemical strategies is costly, produces enormous amounts of sludge and needs the expansion of lethal chemicals. BOD to COD proportion of textile effluent is low. Thus it is not appropriate to treat textile effluent by a solitary physicochemical or biological process. In this investigation, the textile effluent is dealt with utilizing Moving Bed Bio-film Reactor (MBBR) with the magnetic field after improving the biodegradability by the solar photo-Fenton process. The carriers in MBBR is inoculated with azoarcus bacteria isolated from textile sludge. The fundamental  parameters as pH, carrier filling ratio and contact time were optimized utilizing Box Behnken factual design. The MBBR process has most extreme efficiency at pH 7, filling ratio of 62% and a contact time 2.4 days. In this optimum condition 68.9% BOD and 80% COD  are expelled. At the point when the pretreated wastewater was dealt with MBBR reactor under the influence of magnetic field, the efficiency of the treatment is additionally expanded, so 87.4% COD expulsion and 87% BOD evacuation were accomplished at 12 mT attractive field power when exposure time was at 12 hrs.  

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 Responses of Rhizophora mangle L. to effluents from textile Industry in Kano, Nigeria

2017 ◽  
Vol 4 (4) ◽  
pp. 202-208
Author(s):  
Iwuala Emmanuel ◽  
Afroz Alam ◽  
Ajiboye Abiodun
Keyword(s):  
Heavy Metal ◽  
Textile Industry ◽  
Water Discharge ◽  
Membrane Damage ◽  
Membrane Integrity ◽  
Industrial Effluent ◽  
Rhizophora Mangle ◽  
Textile Effluent ◽  
Polluted Water ◽  
Effluent Water

Polluted water discharge sourced from industrial effluent has emerge a distressing happening owing to its harmful effects on health, lives and safety of organisms. The extent of this unpleasant situation by and large remains unidentified. Thus, in the present study, the toxic effects of effluents from textile are analyzed through Rhizophora mangle L., by leaving it to polluted surface water by effluent from the Challawa stream.  An observation on the effects of textile effluent polluted water was analyzed on the growth, chlorophyll content, heavy metal quantification and membrane integrity in R. mangle was carried out. Seedlings raised from viviparous seeds (propagules) were grown in 50L effluent water from textile industry for 4 weeks.  Growth, physiological, biochemical parameters as well as quantification analysis of heavy metals of the seedlings were analysed immediately after the treatment period. The results proved that R. mangle seedlings were sensitive to metal toxicity. The treatment significantly reduced the growth index and chlorophyll contents evaluated. MDA content, catalase enzyme and heavy metal content (Fe, Ni and Cu) significantly increase when plants were grown in effluent water indicating ROS production. Therefore, this result implies that metals present in the textile effluent induce oxidative stress and membrane damage in R. mangle.

scholarly journals Decolorization of dyes from textile wastewater using biochar: a review

2020 ◽  
pp. 36-46
Author(s):  
Hadas Mamane ◽  
Shir Altshuler ◽  
Elizaveta Sterenzon ◽  
Vinod Kumar Vadivel
Keyword(s):  
Textile Industry ◽  
Dye Adsorption ◽  
Textile Wastewater ◽  
Wastewater Effluent ◽  
Low Oxygen ◽  
Middle Income ◽  
Sustainable Solutions ◽  
Middle Income Countries ◽  
Experimental Parameters ◽  
Oxygen Conditions

The textile industry is one of the largest in many low and middle-income countries, especially in Asia, second only to agriculture. Textile wastewater is discharged into the environment due to the lack of affordable and sustainable solutions to adsorb or remove the dye from the water. Biochar is generated by pyrolysis of organic material from plant waste in low-oxygen conditions, and is considered carbon-negative. Biochar for dye adsorption in textile wastewater effluent was proven to be highly effective. However, adsorption efficiency varies with experimental parameters, therefore there is a gap in application especially in small dye houses. Efforts should be made to find innovative and affordable solution to make the textile industry more sustainable, by developing methods for collection and reuse, recycle and upcycle of textile waste, by reducing the consumption of water, energy and chemicals and by developing methods for treatment of the textile wastewater.

scholarly journals Photo-Fenton like Catalyst System: Activated Carbon/CoFe2O4 Nanocomposite for Reactive Dye Removal from Textile Wastewater

2019 ◽  
Vol 9 (5) ◽  
pp. 963 ◽  
Author(s):  
Mohammad Heidari ◽  
Rajender Varma ◽  
Mohammad Ahmadian ◽  
Mohsen Pourkhosravani ◽  
Seyedeh Asadzadeh ◽  
...  
Keyword(s):  
Activated Carbon ◽  
Reaction Time ◽  
Textile Industry ◽  
Uv Light ◽  
Oxygen Demand ◽  
Textile Wastewater ◽  
Catalyst System ◽  
Reactive Dye ◽  
Ambient Room Temperature ◽  
Earth Abundant

The removal of dye from textile industry wastewater using a photo-Fenton like catalyst system was investigated wherein the removal efficiency of phenol and chemical oxygen demand (COD) was studied by varying various parameters of pH (3–11), reaction time (1–50 min), activated Carbon/CoFe2O4 (AC/CFO) nanocomposite dosage (0.1–0.9 g/L), and persulfate amount (1–9 mM/L). The highest removal rates of reactive red 198 and COD were found to be 100% and 98%, respectively, for real wastewater under the optimal conditions of pH = 6.5, AC/CFO nanocomposite dosage (0.3 g/L), reaction time, 25 min, and persulfate dose of 5 mM/L up on constant UV light irradiation (30 W) at ambient room temperature. The result showed that this system is a viable and highly efficient remediation protocol relative to other advanced oxidation processes; inexpensive nature, the ease of operation, use of earth-abundant materials, and reusability for removal of organic pollutants being the salient attributes.

Treatment of textile industry effluents using orange waste: a proposal to reduce color and chemical oxygen demand

2016 ◽  
Vol 74 (4) ◽  
pp. 994-1004 ◽  
Author(s):  
Carlos Eduardo de Farias Silva ◽  
Andreza Heloiza da Silva Gonçalves ◽  
Ana Karla de Souza Abud
Keyword(s):  
Chemical Oxygen Demand ◽  
Textile Industry ◽  
Adsorption Process ◽  
Low Cost ◽  
High Surface ◽  
High Surface Area ◽  
Dye Adsorption ◽  
Oxygen Demand ◽  
Textile Wastewater ◽  
Color Removal

Various agricultural residues have been tested as biosorbents due to their low cost, high surface area, and favorable surface chemistry. In this work, a sweet orange albedo was tested as a biosorbent for treatment of real textile effluents. The orange albedo powder was prepared by drying the residue at 50 °C and milling to 30 mesh, and then used for dye adsorption from a alkaline (pH = 10.71) effluent. The adsorption process was studied in batch experiments at 30 °C by measuring color removal and chemical oxygen demand (COD). The color removal was found not to be significantly altered when the effluent was used in its raw state, while COD increased probably due to albedo degradation. For the effluent diluted to 60% (Veffluent VH2O−1), color and COD removal percentages of approximately 89% were obtained. It was found that pH played a very significant role on the adsorption process, as the treated albedo displayed a relative pHPZC* of 4.61, and the highest dye removal efficiencies were reached at pH lower than 2. The COD was strongly influenced by the effluent dilution. The effectiveness in eliminating color and COD shows that orange albedo can be potentially used as a biosorbent to treat textile wastewater.

Textile Wastewater Reuse: Ozonation of Membrane Concentrated Secondary Effluent

1999 ◽  
Vol 40 (4-5) ◽  
pp. 99-105 ◽  
Author(s):  
A. Lopez ◽  
G. Ricco ◽  
R. Ciannarella ◽  
A. Rozzi ◽  
A. C. Di Pinto ◽  
...  
Keyword(s):  
Wastewater Treatment ◽  
Acute Toxicity ◽  
Wastewater Treatment Plant ◽  
Textile Industry ◽  
Nonionic Surfactants ◽  
Wastewater Reuse ◽  
Treatment Plant ◽  
Textile Wastewater ◽  
Secondary Effluent ◽  
Complete Disappearance

Among the activities appointed by the EC research-project “Integrated water recycling and emission abatement in the textile industry” (Contract: ENV4-CT95-0064), the effectiveness of ozone for improving the biotreatability of recalcitrant effluents as well as for removing from them toxic and/or inhibitory pollutants has been evaluated at lab-scale. Real membrane concentrates (pH=7.9; TOC=190 ppm; CDO=595 ppm; BOD5=0 ppm; Conductivity=5,000 μS/cm; Microtox-EC20=34%) produced at Bulgarograsso (Italy) Wastewater Treatment Plant by nanofiltering biologically treated secondary textile effluents, have been treated with ozonated air (O3conc.=12 ppm) over 120 min. The results have indicated that during ozonation, BOD5 increases from 0 to 75 ppm, whereas COD and TOC both decrease by about 50% and 30 % respectively. As for potentially toxic and/or inhibitory pollutants such as dyes, nonionic surfactants and halogenated organics, all measured as sum parameters, removals higher than 90% were achieved as confirmed by the complete disappearance of acute toxicity in the treated streams. The only ozonation byproducts searched for and found were aldehydes whose total amount continuously increased in the first hour from 1.2 up to 11.8 ppm. Among them, formaldehyde, acetaldehyde, glyoxal, propionaldehyde, and butyraldehyde were identified by HPLC.

scholarly journals Ultrasound-irradiated synthesis of 3-mercaptopropyl trimethoxysilane-modified hydroxyapatite derived from fish-scale residues followed by ultrasound-assisted organic dyes removal

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Phitchan Sricharoen ◽  
Supalak Kongsri ◽  
Chunyapuk Kukusamude ◽  
Yonrapach Areerob ◽  
Prawit Nuengmatcha ◽  
...  
Keyword(s):  
Electron Microscopy ◽  
Textile Industry ◽  
Organic Dyes ◽  
Dye Adsorption ◽  
Ultrasound Irradiation ◽  
Coefficient Of Determination ◽  
Fish Scale ◽  
Transmission Electron ◽  
Endothermic Process ◽  
Langmuir Isotherm Model

AbstractWe report a novel method for the synthesis of 3-mercaptopropyl trimethoxysilane-modified hydroxyapatite (FHAP-SH) derived from fish-scale residues by using ultrasound irradiation. Scanning electron microscopy, transmission electron microscopy, energy-dispersive spectroscopy, X-ray diffraction, and Fourier transform infrared spectroscopy were used for the FHAP-SH characterization. Then, the organic dye adsorption on the FHAP-SH was monitored through an ultrasound process. After the dye removal optimization, significant improvements were observed in the maximum adsorption capacities for Congo Red (CR, 500 mg g−1), Coomassie Brilliant Blue G 250 (CB, 235 mg g−1), and Malachite Green (MG, 625 mg g−1). The adsorption behaviors of these dyes were fitted by using the Langmuir isotherm model with a high coefficient of determination values ranging from 0.9985 to 0.9969. The adsorption of the three dyes onto FHAP-SH was an endothermic process based on the adsorption thermodynamics model, while the adsorption kinetics analysis of the dyes presented a good alignment with the pseudo-second-order kinetics. The FHAP-SH exhibits a remarkably high adsorption capacity, is inexpensive, and fulfills the ecofriendly requirements of dye wastewater treatment, especially in the textile industry.

A constructed wetland model for synthetic reactive dye wastewater treatment by narrow-leaved cattails (Typha angustifolia Linn.)

2009 ◽  
Vol 60 (6) ◽  
pp. 1565-1574 ◽  
Author(s):  
S. Nilratnisakorn ◽  
P. Thiravetyan ◽  
W. Nakbanpote
Keyword(s):  
Wastewater Treatment ◽  
Constructed Wetland ◽  
Cell Structure ◽  
Salt Content ◽  
Textile Wastewater ◽  
Reactive Dye ◽  
Wastewater Management ◽  
Textile Dye ◽  
Dye Wastewater ◽  
Term Operation

Textile wastewater is contaminated by reactive dye causing unattractive levels of wastewater color, high pH and high salt content when discharged into public water systems. Decolorization of textile wastewater by plant, phytoremediation, is an alternative, sustainable method which is suitable for long term operation. Narrow-leaved cattails are one species of wetland plant with efficiency for decolorizing and remediating textile wastewater. In addition, chemical oxygen demand (COD) can be lowered and dye residue can be removed. The plant also showed a good salt tolerance even after being exposed to a salt solution for 15 days. The narrow-leaved cattails were set up in a constructed wetland model with a vertical flow system operating from bottom to top for synthetic reactive dye wastewater (SRDW) removal. Narrow-leaved cattails could achieve the removal of SRDW at approximately 0.8 gSRDW m−2 day−1. Decolorization of SRDW by this plant was approximately 60%. The advantage of this method is that it is suitable for textile wastewater management and improvement of wetland. These plants could lower COD, remove dye, sodium and total dissolved solids (TDS) whereas other biological and chemical methods could not remove TDS and dye in the same time. These results suggested that the spongy cell structure of this plant has the ability to absorb large amounts of water and nutrients. Physico-chemical analysis revealed increasing amounts of sulfur, silicon, iron and calcium in the plant leafs and roots after exposure to wastewater. Proteins or amide groups in the plant might help in textile dye removal. Regarding decolorization, this plant accumulates dye in the intercellular space and still grows in this SRDW condition. Hence, it can be noted here that narrow-leaved cattails are efficient for textile dye wastewater treatment.

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