scholarly journals The Application of Modified Natural Polymers in Toxicant Dye Compounds Wastewater: A Review

Water ◽  
2020 ◽  
Vol 12 (7) ◽  
pp. 2032
Author(s):  
Siti Aisyah Ishak ◽  
Mohamad Fared Murshed ◽  
Hazizan Md Akil ◽  
Norli Ismail ◽  
Siti Zalifah Md Rasib ◽  
...  
Keyword(s):  
Industrial Wastewater ◽  
Dye Removal ◽  
Skin Diseases ◽  
Dye Wastewater ◽  
Natural Polymers ◽  
Physical Processes ◽  
Respiratory Problems ◽  
Modified Polymers ◽  
Surface Modified ◽  
Dye Industry

The utilization of various types of natural and modified polymers for removing toxicant dyes in wastewater generated by the dye industry is reviewed in this article. Dye wastewater contains large amounts of metals, surfactants, and organic matter, which have adverse effects on human health, potentially causing skin diseases and respiratory problems. The removal of dyes from wastewaters through chemical and physical processes has been addressed by many researchers. Currently, the use of natural and modified polymers for the removal of dyes from wastewater is becoming more common. Although modified polymers are preferred for the removal of dyes, due to their biodegradability and non-toxic nature, large amounts of polymers are required, resulting in higher costs. Surface-modified polymers are more effective for the removal of dyes from the wastewater. A survey of 80 recently published papers demonstrates that modified polymers have outstanding dye removal capabilities, and thus have a high applicability in industrial wastewater treatment.

scholarly journals Investigation of Dye Removal Capability of Blast Furnace Slag in Wastewater Treatment

2021 ◽  
Vol 13 (4) ◽  
pp. 1970
Author(s):  
Sara Yasipourtehrani ◽  
Vladimir Strezov ◽  
Tao Kan ◽  
Tim Evans
Keyword(s):  
Blast Furnace ◽  
Blast Furnace Slag ◽  
Industrial Wastewater ◽  
Dye Removal ◽  
Treatment Time ◽  
Activated Carbons ◽  
Industrial Applications ◽  
Ore Processing ◽  
Pre Treatment ◽  
Furnace Slag

Blast Furnace Slag (BFS) is a by-product of the iron ore processing industry with potential to be used in different industrial applications. In this research, BFS was used to examine its ability for dye removal from wastewater. The efficiency of two types of BFS samples for removal of cationic methylene blue (MB) and acidic methyl orange (MO) dyes was investigated and results found that the optimal conditions for treatment of wastewater were 80 g/L of adsorbent dose and 1 h of treatment time for both dyes. BFS was found to be more effective for removal of the acidic MO dye than the cationic MB dye. Under shorter residence times, the results showed reverse trends with BFS samples removing higher concentrations of MB than MO. The BFS chemistry had additional impacts on the efficiency of dye removal. Higher basicity of BFS had lower dye removal ability for adsorption of acidic dye when applied at smaller concentrations, while for cationic dye when applied at higher concentrations. The results showed that BFS has potential role for pre-treatment of industrial wastewater contaminated with dyes and may contribute to reduced use of more expensive adsorbents, such as activated carbons.

scholarly journals Toxic effects of plastic on human health and environment : A consequences of health risk assessment in Bangladesh

2017 ◽  
Vol 6 (1) ◽  
pp. 1 ◽  
Author(s):  
Ram Proshad ◽  
Tapos Kormoker ◽  
Md. Saiful Islam ◽  
Mohammad Asadul Haque ◽  
Md. Mahfuzur Rahman ◽  
...  
Keyword(s):  
Risk Assessment ◽  
Health Risk ◽  
Human Health ◽  
Health Risk Assessment ◽  
Flame Retardants ◽  
Skin Diseases ◽  
Hazardous Substances ◽  
Toxic Effects ◽  
Environment Pollution ◽  
Respiratory Problems

Plastics are used widely everywhere in our life and without plastic, modern civilization would indeed look very diverse. This study focuses on the toxic effects of plastic on human health and environment and possible consequences of health risk assessment in Bangladesh. Plastics are essential materials in modern civilization, and many products manufactured from plastics and in numerous cases, they promote risks to human health and the environment. Plastics are contained many chemical and hazardous substances such as Bisphenol A (BPA), thalates, antiminitroxide, brominated flame retardants, and poly- fluorinated chemicals etc. which are a serious risk factor for human health and environment. Plastics are being used by Bangladeshi people without knowing the toxic effects of plastic on human health and environment. Different human health problems like irritation in the eye, vision failure, breathing difficulties, respiratory problems, liver dysfunction, cancers, skin diseases, lungs problems, headache, dizziness, birth effect, reproductive, cardiovascular, genotoxic, and gastrointestinal causes for using toxic plastics. Plastics occur serious environment pollution such as soil pollution, water pollution, and air pollution. Application of proper rules and regulations for the production and use of plastics can reduce toxic effects of plastics on human health and environment.

Analysis of Primary Degradation and Decolourization of Dyes in Water by an H2O2/UV Advanced Oxidation Process

2008 ◽  
Vol 11 (3) ◽  
Author(s):  
Amaia Menendez ◽  
Jose Ignacio Lombraña ◽  
Ana de Luis
Keyword(s):  
Dye Removal ◽  
Advanced Oxidation Process ◽  
Rhodamine 6G ◽  
Dye Degradation ◽  
Water Solution ◽  
Synthetic Dyes ◽  
Dye Wastewater ◽  
First Order ◽  
Textile Dyeing ◽  
Colour Photography

AbstractSynthetic dyes are extensively used in textile dyeing, paper printing, colour photography, pharmaceuticals, food, cosmetics and other industries. In spite of their diversity there are a certain number of properties common to many dye compounds, such as aromatic constitution, chromophore groups and others. Similarly to other dyes and due to the formation of colour intermediates, in the case of Rhodamine 6G colour capacity is maintained in the initial steps of dye degradation. For this reason in the degradation of a dye it is necessary to distinguish between two processes that take place simultaneously: dye removal and decolourization. This study was conducted by using a water solution of 50 mg/L of Rhodamine 6G (Rh-6G), as a model of a dye wastewater, in the hydrogen peroxide/UV system. The kinetic model proposed in this paper for the removing of Rh- 6G is a sequential first-order reaction. This model describes acceptably the changes in two kinds of compound for a wide interval of H

Surface-Modified Polymers and Polymers with Strong Heparin-Like Activity Based on Vinyl Sugars

2001 ◽  
pp. 276-291
Author(s):  
Günter Wulff ◽  
Susanne Bellmann ◽  
Achim Brock ◽  
Holger Schmidt ◽  
Stefanie Stalberg ◽  
...  
Keyword(s):  
Modified Polymers ◽  
Surface Modified

scholarly journals Interfacial study of surface-modified ZrO2 nanoparticles with thioctic acid for the selective recovery of palladium and gold from electronic industrial wastewater

2020 ◽  
Vol 237 ◽  
pp. 116353 ◽  
Author(s):  
Quoc An Trieu ◽  
Stéphane Pellet-Rostaing ◽  
Guilhem Arrachart ◽  
Youssouf Traore ◽  
Serge Kimbel ◽  
...  
Keyword(s):  
Industrial Wastewater ◽  
Zro2 Nanoparticles ◽  
Thioctic Acid ◽  
Selective Recovery ◽  
Surface Modified

scholarly journals Impacts of Brick Fields on Environment and Social Economy at Bagatipara, Natore, Bangladesh

2017 ◽  
Vol 9 (2) ◽  
pp. 31-34 ◽  
Author(s):  
MF Jerin ◽  
SK Mondol ◽  
BC Sarker ◽  
RH Rimi ◽  
S Aktar
Keyword(s):  
Water Quality ◽  
Crop Production ◽  
Skin Diseases ◽  
Social Economy ◽  
Economic Conditions ◽  
Crop Loss ◽  
Community Members ◽  
Respiratory Problems ◽  
Negative Impacts

This study investigated environmental and socio-economic impacts of brick fields at Bagatipara upazila of Natore district, Bangladesh. A questionnaire survey was conducted at selected community members living at or near brick field areas with aim to assess impacts of brick fields on air, water, soil, vegetation as well as socio-economic conditions. Findings of this study were based on randomly selected respondents’ perception on change of any resource or condition. Crop loss, decreased soil fertility and subsequent reductions in crop production were reported. Trees around brickfields were dusted badly and water quality of nearby water bodies deteriorated because of emerged dust and ash from brick fields. Noticeable negative impacts on aquaculture were found. Except few, majority of the respondents were suffering from various diseases like eye irritation, skin diseases and respiratory problems. Despite creating work opportunities for local people, brick fields of the study area adversely affected environment and social economy.J. Environ. Sci. & Natural Resources, 9(2): 31-34 2016

Removal of dyes from aqueous solutions using activated carbon prepared from rice husk residue

2015 ◽  
Vol 73 (5) ◽  
pp. 1122-1128 ◽  
Author(s):  
Yaxin Li ◽  
Xian Zhang ◽  
Ruiguang Yang ◽  
Guiying Li ◽  
Changwei Hu
Keyword(s):  
Activated Carbon ◽  
Aqueous Solutions ◽  
Rice Husk ◽  
Dye Removal ◽  
Neutral Red ◽  
Batch Adsorption ◽  
Dye Wastewater ◽  
Dye Molecules ◽  
Major Mode ◽  
Pseudo Second Order

The treatment of dye wastewater by activated carbon (AC) prepared from rice husk residue wastes was studied. Batch adsorption studies were conducted to investigate the effects of contact time, initial concentration (50–450 mg/L), pH (3–11) and temperature (30–70 °C) on the removal of methylene blue (MB), neutral red, and methyl orange. Kinetic investigation revealed that the adsorption of dyes followed pseudo-second-order kinetics. The results suggested that AC was effective to remove dyes, especially MB, from aqueous solutions. Desorption studies found that chemisorption by the adsorbent might be the major mode of dye removal. Fourier transform infrared results suggested that dye molecules were likely to combine with the O–H and P=OOH groups of AC.

Acid Light Yellow Removal from Wastewater Using Peanut Shell-Based Activated Carbon

2013 ◽  
Vol 864-867 ◽  
pp. 1694-1698 ◽  
Author(s):  
Lin Zhi Zhai ◽  
Gang Li
Keyword(s):  
Wastewater Treatment ◽  
Activated Carbon ◽  
Dye Removal ◽  
Ph Value ◽  
Peanut Shell ◽  
Dye Wastewater ◽  
Optimum Conditions ◽  
Activation Time ◽  
Activation Temperature ◽  
Light Yellow

Peanut shell-based activated carbon was prepared by 60% zinc chloride activation. The activation temperature was 923K and activation time was 90min. The activated carbon was applied on the removal of acid light yellow from wastewater. The effects of the amount of adsorbent, the initial dye concentration and pH value of solution were investigated. The results showed that the optimum conditions for dye removal: activated carbon dosage of 2.5g/L, initial dye concentration of 50mg/L, pH value of 3. The color removal efficiency attained above 95%. It is concluded that activated carbon developed from peanut shell could be effective and practical for utilizing in dye wastewater treatment.

Improved visible light photocatalytic activity of rGO–Fe3O4–NiO hybrid nanocomposites synthesized byin situfacile method for industrial wastewater treatment applications

2018 ◽  
Vol 42 (6) ◽  
pp. 4372-4383 ◽  
Author(s):  
Shanmugam Mahalingam ◽  
Young-Ho Ahn
Keyword(s):  
Wastewater Treatment ◽  
Photocatalytic Activity ◽  
Visible Light ◽  
Industrial Wastewater ◽  
Hybrid Nanocomposites ◽  
Synthetic Dyes ◽  
Dye Wastewater ◽  
Hybrid Nanocomposite ◽  
Visible Light Photocatalytic

In situsurfactant free synthesis of rGO–Fe3O4–NiO hybrid nanocomposite for improving photocatalytic degradation of synthetic dyes (MR and CV) and real industrial dye wastewater.

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