Mutagenicity, cytotoxicity and phytotoxicity evaluation of biodegraded textile effluent by fungal ligninolytic enzymes

2016 ◽  
Vol 73 (10) ◽  
pp. 2332-2344 ◽  
Author(s):  
Muhammad Bilal ◽  
Munawar Iqbal ◽  
Hongbo Hu ◽  
Xuehong Zhang
Keyword(s):  
Textile Industry ◽  
Oxygen Demand ◽  
Ligninolytic Enzymes ◽  
Textile Wastewater ◽  
Treatment Technique ◽  
Textile Effluents ◽  
State Culture ◽  
Global Issue ◽  
Toxic Agents ◽  
Before And After

Colored effluents from the textile industry have led to severe environmental pollution, and this has emerged as a global issue. The feasibility of ligninolytic enzymes for the detoxification and degradation of textile wastewater was investigated. Ganoderma lucidum crude ligninolytic enzymes extract (MnP 717.7, LiP 576.3, and Laccase 323.2 IU/mL) was produced using solid-state culture using wheat bran as substrate. The biodegradation treatment efficiency was evaluated on the basis of degradation and detoxification of textile effluents. Standard bioassays were employed for mutagenicity, cytotoxicity and phytotoxicity evaluation before and after biodegradation. The degradation of Masood Textile, Kalash Textile, Khyber Textile and Sitara Textile effluents was achieved up to 87.29%, 80.17%, 77.31% and 69.04%, respectively. The biochemical oxygen demand, chemical oxygen demand, total suspended solids and total organic carbon were improved considerably as a result of biodegradation of textile effluents, which were beyond the permissible limits established by the National Environmental Quality Standards before treatment. The cytotoxicity (Allium cepa, hemolytic, Daphnia magna and brine shrimp), mutagenicity (Ames TA98 and TA100) and phytotoxicity (Triticum aestivum) tests revealed that biodegradation significantly (P < 0.05) detoxifies the toxic agents in wastewater. Results revealed that biodegradation could possibly be used for remediation of textile effluents. However, detoxification monitoring is crucial and should always be used to evaluate the bio-efficiency of a treatment technique.

scholarly journals Decontamination of industrial textile wastewater using photocatalysis

DYNA ◽  
2016 ◽  
Vol 83 (196) ◽  
pp. 80-85 ◽  
Author(s):  
Jose Herney Ramirez ◽  
Hugo Ricardo Zea
Keyword(s):  
Textile Industry ◽  
Oxygen Demand ◽  
Textile Wastewater ◽  
Total Surface Area ◽  
Area Measurement ◽  
X Ray Diffraction ◽  
X Ray ◽  
Highly Active ◽  
Before And After ◽  
Photocatalytic Reactions

<p>Iron-doped TiO<sub>2</sub> catalysts were prepared by impregnation in order to study their photocatalytic activity in the treatment of wastewater from the textile industry. Characterization of the catalysts before and after reaction was performed using techniques including total surface area measurement, X-Ray diffraction and elemental analysis via X-Ray fluorescence. Varying pH conditions, H<sub>2</sub>O<sub>2</sub> concentrations and catalyst quantities were evaluated during the photocatalytic reactions. Fe-TiO<sub>2</sub> catalysts were shown to be highly active in the reduction of chemical oxygen demand (% COD) and % color reduction in the water treated.</p>

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 Treatment of Textile Wastewater by CAS, MBR, and MBBR: A Comparative Study from Technical, Economic, and Environmental Perspectives

Water ◽  
2020 ◽  
Vol 12 (5) ◽  
pp. 1306
Author(s):  
Xuefei Yang ◽  
Víctor López-Grimau ◽  
Mercedes Vilaseca ◽  
Martí Crespi
Keyword(s):  
Textile Industry ◽  
Water Reuse ◽  
Oxygen Demand ◽  
Textile Wastewater ◽  
Economic Benefits ◽  
Biofilm Reactor ◽  
Efficient Technology ◽  
Conventional Activated Sludge ◽  
Large Water ◽  
Dyed Fabrics

In this study, three different biological methods—a conventional activated sludge (CAS) system, membrane bioreactor (MBR), and moving bed biofilm reactor (MBBR)—were investigated to treat textile wastewater from a local industry. The results showed that technically, MBR was the most efficient technology, of which the chemical oxygen demand (COD), total suspended solids (TSS), and color removal efficiency were 91%, 99.4%, and 80%, respectively, with a hydraulic retention time (HRT) of 1.3 days. MBBR, on the other hand, had a similar COD removal performance compared with CAS (82% vs. 83%) with halved HRT (1 day vs. 2 days) and 73% of TSS removed, while CAS had 66%. Economically, MBBR was a more attractive option for an industrial-scale plant since it saved 68.4% of the capital expenditures (CAPEX) and had the same operational expenditures (OPEX) as MBR. The MBBR system also had lower environmental impacts compared with CAS and MBR processes in the life cycle assessment (LCA) study, since it reduced the consumption of electricity and decolorizing agent with respect to CAS. According to the results of economic and LCA analyses, the water treated by the MBBR system was reused to make new dyeings because water reuse in the textile industry, which is a large water consumer, could achieve environmental and economic benefits. The quality of new dyed fabrics was within the acceptable limits of the textile industry.

scholarly journals Experimental Investigation of Chlorella vulgaris and Enterobacter sp. MN17 for Decolorization and Removal of Heavy Metals from Textile Wastewater

Water ◽  
2020 ◽  
Vol 12 (11) ◽  
pp. 3034
Author(s):  
Muhammad Mubashar ◽  
Muhammad Naveed ◽  
Adnan Mustafa ◽  
Sobia Ashraf ◽  
Khurram Shehzad Baig ◽  
...  
Keyword(s):  
Heavy Metals ◽  
Chlorella Vulgaris ◽  
Textile Industry ◽  
Oxygen Demand ◽  
Industrial Effluents ◽  
Textile Wastewater ◽  
Removal Of Heavy Metals ◽  
Plant Growth Promoting ◽  
Growth Promoting ◽  
Coloring Agents

The present study evaluated the performance of microalgae Chlorella vulgaris in an Enterobacter sp. MN17-assisted textile industry wastewater treatment system for decolorization, removal of heavy metals (Cu, Cr, Pb, and Cd), and chemical oxygen demand (COD). Different dilutions (5, 10, and 20%) of wastewater were prepared to decrease the pollutant toxicity for culturing microalgae and bacteria. Reduction of color, COD, and metal contents by microalgal treatment of wastewater varied greatly, while removal efficiency (RE) was significantly enhanced when endophytic bacterial strain MN17 inoculum was applied. Most notable, results were found at a 5% dilution level by Enterobacter sp. MN17-inoculated C. vulgaris medium, as chromium (Cr), cadmium (Cd), copper (Cu), and lead (Pb) concentrations were decreased from 1.32 to 0.27 mg L−1 (79% decrease), 0.79–0.14 mg L−1 (93% decrease), 1.33–0.36 mg L−1 (72% decrease), and 1.2–0.25 mg L−1 (79% decrease), respectively. The values of COD and color were also significantly decreased by 74% and 70%, respectively, by a C. vulgaris–Enterobacter sp. MN17 consortium. The present investigation revealed that bacterial inoculation of microalgae significantly enhanced the removal of coloring agents and heavy metals from textile wastewater by stimulating the growth of algal biomass. This study manifested the usefulness of microalgae–bacterial mutualism for the remediation of heavy metals, COD, and color in industrial effluents. Microalgae consortia with growth promoting bacteria could be a breakthrough for better bioremediation and bioprocess economy. Thus, further studies are needed for successful integration of microalgae–plant growth promoting bacterial (PGPB) consortium for wastewater treatments.

scholarly journals Portrayal of Textile Based Pollutants and its Impact on Soil, Plants and Fisheries

2021 ◽  
Vol 20 (3) ◽  
Author(s):  
M. Riza ◽  
M. N. Ehsan ◽  
S. Hoque
Keyword(s):  
Textile Industry ◽  
Global Economy ◽  
Negative Impact ◽  
Aquatic Organisms ◽  
Textile Wastewater ◽  
Biochemical Properties ◽  
Textile Processing ◽  
Textile Effluents ◽  
Positive Effects ◽  
The Impact

The textile industry occupies a significant hold on the global economy. This substantial industry often generates a large volume of effluents exceeding the permissible limit of discharge in the different regions of the world. Therefore, textile effluents act as pollutants altering the natural composition of various components of the environment. This paper discusses the impact of textile-based pollutants on agriculture including plants, soil, water and fisheries. The observed result is significant because textile effluents exert a widespread negative impact on the respective respondents, though plants show few positive effects. Prior treatment of textile wastewater is necessary before applying it to the soil, as there is a possibility of affecting the plant ecosystem via soil media. Plants are benefitted in terms of germination and growth, due to irrigation by textile effluents with proper dilution. The physical and biochemical properties of water streams along with aquatic organisms are impacted by these specific discharges, leading to even severe deterioration of particular living creatures. Pollutants released from various steps of textile processing have adverse effects on the environment, disturbing the food chain, ecosystem, and overall ecological balance.

Effective Management of Agro-Industrial Residues as Composting in Mushroom Industry and Utilization of Spent Mushroom Substrate for Bioremediation

2020 ◽  
pp. 1217-1236
Author(s):  
Rajender Singh ◽  
Mamta Chauhan
Keyword(s):  
Textile Industry ◽  
Ganoderma Lucidum ◽  
Lentinula Edodes ◽  
Ligninolytic Enzymes ◽  
Textile Wastewater ◽  
Industrial Scale ◽  
Spent Mushroom Substrate ◽  
Edible Fungi ◽  
Dyeing Process ◽  
Calocybe Indica

Different types of edible mushrooms like Agaricus, bisporus, A. bitoriqus, Pleurotus spp., Volvariella volvacea, Lentinula edodes, Calocybe indica, Flamullina, Ganoderma lucidum etc. are cultivated in industrial scale. Majority of edible fungi secretes extracellular Ligninocellulolytic enzymes like Laccase, lignin peroxidase, manganese peroxidase, cellulase etc. for effective conversion of ligninocellulolytic substrate to compositing form which led to fruiting of mushrooms. Consequently, an adequate disposal method is needed for the high quantities of spent mushroom substrate (SMS) generated in this agro-food industrial activity. On the other side, textile industry among the largest water consuming industries in the world and approximately, 10,000 different dyes and pigments are used at industrial scale. It is estimated that nearly 40% of the total dyes used in the dyeing process may find their way in wastewater. So, there is an attempt to utilize the ligninolytic enzymes rich SMS of different mushroom for efficiently biodegradation of textile wastewater & polyaromatic pollutants.

Photo-assisted electrochemical degradation of real textile wastewater

2010 ◽  
Vol 61 (2) ◽  
pp. 491-498 ◽  
Author(s):  
P. A. Alves ◽  
G. R. P. Malpass ◽  
H. D. Johansen ◽  
E. B. Azevedo ◽  
L. M. Gomes ◽  
...  
Keyword(s):  
Supporting Electrolyte ◽  
Oxygen Demand ◽  
Textile Wastewater ◽  
Operating Conditions ◽  
Cod Removal ◽  
Constant Current ◽  
Electrochemical Degradation ◽  
Figures Of Merit ◽  
Before And After ◽  
Initial Ph

In the present study, photo-assisted electrochemical degradation of real textile wastewater was performed. Degradation assays were performed at constant current (40 mA cm−2) in a combined electro/photochemical flow-cell using a Ti/Ru0.3Ti0.7O2 DSA® type electrode. The results show that the method is capable of removing color and chemical oxygen demand (COD) from the effluent. Additionally, the effect of initial pH and type of supporting electrolyte (Na2SO4 or NaCl) was investigated. The principal figures of merit used in this study were COD removal and color removal (605 nm). The results show that up to 72% color and up to 59% COD removal in 120 min is possible under the operating conditions employed. Studies of the phytotoxicity of the wastewater before and after the photo-assisted degradation assays are also presented and the results demonstrate that the toxicity of the effluent is dependent on the length of electrolysis time and the treatment procedure employed.

scholarly journals Recovery of Biologically Treated Textile Wastewater by Ozonation and Subsequent Bipolar Membrane Electrodialysis Process

Membranes ◽  
2021 ◽  
Vol 11 (11) ◽  
pp. 900
Author(s):  
Burak Yuzer ◽  
Huseyin Selcuk
Keyword(s):  
Textile Industry ◽  
Wastewater Reuse ◽  
Oxygen Demand ◽  
Textile Wastewater ◽  
Quality Parameters ◽  
Bipolar Membrane ◽  
Acid Base ◽  
Operational Conditions ◽  
Bipolar Membrane Electrodialysis ◽  
Pre Treatment

The Bipolar Membrane Electrodialysis process (BPMED) can produce valuable chemicals such as acid (HCl, H2SO4, etc.) and base (NaOH) from saline and brackish waters under the influence of an electrical field. In this study, BPMED was used to recover wastewater and salt in biologically treated textile wastewater (BTTWW). BPMED process, with and without pre-treatment (softening and ozonation), was evaluated under different operational conditions. Water quality parameters (color, remaining total organic carbon, hardness, etc.) in the acid, base and filtrated effluents of the BPMED process were evaluated for acid, base, and wastewater reuse purposes. Ozone oxidation decreased 90% of color and 37% of chemical oxygen demand (COD) in BTTWW. As a result, dye fouling on the anion exchange membrane of the BPMED process was reduced. Subsequently, over 90% desalination efficiency was achieved in a shorter period. Generated acid, base, and effluent wastewater of the BPMED process were found to be reusable in wet textile processes. Results indicated that pre-ozonation and subsequent BPMED membrane systems might be a promising solution in converging to a zero discharge approach in the textile industry.

scholarly journals Phycoremediation of textile wastewater using indigenous microalgae

2018 ◽  
Vol 13 (2) ◽  
pp. 274-284 ◽  
Author(s):  
Tadele Assefa Aragaw ◽  
Abraham M. Asmare
Keyword(s):  
Incubation Time ◽  
Oxygen Demand ◽  
Textile Wastewater ◽  
Operating Conditions ◽  
Optimum Operating ◽  
Experimental Investigations ◽  
Dye Wastewater ◽  
Before And After ◽  
Photo Bioreactor ◽  
Bacteria And Fungi

Abstract The recognition that environmental pollution is a worldwide threat to public health and environmental degradation has given rise to new initiatives for environmental restoration for both economic and ecological reasons. There are several methods to treat the dye contaminated industrial wastewater; of which biological treatment methods are economical and environmentally friendly. The bacteria and fungi remediation of dye pollutants has been well characterized over a period of more than 30 years. So, finding other biological methods in addition to bacteria and fungi is great important in the world. As a result, investigating and evaluating Phycoremediation techniques of dye wastewater (bioremediation using Microalgae) have gained a great deal of attention because of their versatility and capacity than bacteria and fungi. The aim of the research is to study Phycoremediation of Textile Wastewater Using indigenous Microalgae. Physico-chemical parameters such as color, pH, total dissolved solid (TDS), biochemical oxygen demand (BOD) and chemical oxygen demand of the waste were determined with ASTM standard methods before and after bioremediation. Photo bioreactor systems were used for Phycoremediation treatment techniques. PH, incubation time and temperature effects were determined on a photo bioreactor treatment and optimal experimental condition was ascertained. Instrumental analytical techniques (UV-Vis, FTIR) were used to determine percent decolorizations of dye wastewater before and after bioremediation; and the actual break down of the dye functional groups. The maximum reductions of the basic parameters; COD, BOD and TDS were obtained 91.50%, 91.90% and 89.10% respectively. The optimum operating conditions in the photo bioreactor system were found incubation time 20 days, 30°C; with 10% of inoculums at a pH of 8. Under these conditions, a maximum of 82.6% decolorization was achieved in 20 days. The experimental investigations evidently tell us algae undoubtedly have the potential to rapidly, efficiently and effectively remove dyes wastewater.

scholarly journals Assessing the Degradation of Organics in Surgical Cotton Processing Wastewater by Mixed Microbial Culture and Photo-Catalysis

2019 ◽  
Vol 8 (4S2) ◽  
pp. 455-458
Keyword(s):  
Waste Water ◽  
Textile Industry ◽  
Oxygen Demand ◽  
Textile Wastewater ◽  
Catalytic Degradation ◽  
Nano Particles ◽  
Microbial Culture ◽  
Mixed Microbial Culture ◽  
Catalytic Method ◽  
Treatment Methods

Cotton bandage processing textile industry is the major manufacturing product of Rajapalayam town in south Tamilnadu, India. Processing of surgical cottons consumes significant amounts of water during manufacturing, creating high volumes of wastewater which cannot be discharged without proper treatment. The complete oxidation of organic pollutants in such waste water remains a significant environmental issue. This research investigates different treatment methods like biodegradation and photo catalytic degradation to identify the most efficient and effective approach to treat cotton bandage textile wastewater. Chemical Oxygen Demand (COD) analysis was carried out to quantify and observe the amount of oxidizable pollutant in the waste water with different treatment methods. In photo catalytic degradation process different semi-conductor metal oxide nano particles like Titanium dioxide (TiO2), Zinc Oxide (ZnO) and Bismuth Vanadium oxide (BiVO4) were used. Comparing the three nanoparticles; TiO2 proved to be the efficient one, which reduced the COD of the effluent significantly. For Biodegradation aerobic activated sludge was used to treat the cotton bandage textile waste water in along with mineral salt media. By comparing both photocatalytic degradation and biodegradation process, photo catalytic method was found to be efficient for treatment of organics in real cotton bandage processing effluent.

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