Coupling of electrocoagulation and microflotation for the removal of textile dyes from aqueous solutions

Abdulrazzaq, Nada N.; Al-Sabbagh, Baseem H.; Shanshool, Haider Abbas

doi:10.1016/j.jwpe.2020.101906

Cited by 40 publications

(14 citation statements)

References 30 publications

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“…Lysinibacillus sp. RGS proved to decolorize and detoxify the Remazol red dye [216][217][218][219]. Nonetheless, natural bioremediation is a time-consuming method, the induced biodegradation is not readily reproduced and elevated concentrations of toxic compounds may prevent the growth of existing or introduced microorganisms [8,102].…”

Section: Biological Treatment Processmentioning

confidence: 99%

Diversity of Synthetic Dyes from Textile Industries, Discharge Impacts and Treatment Methods

Slama¹,

et al. 2021

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Natural dyes have been used from ancient times for multiple purposes, most importantly in the field of textile dying. The increasing demand and excessive costs of natural dye extraction engendered the discovery of synthetic dyes from petrochemical compounds. Nowadays, they are dominating the textile market, with nearly 8 × 105 tons produced per year due to their wide range of color pigments and consistent coloration. Textile industries consume huge amounts of water in the dyeing processes, making it hard to treat the enormous quantities of this hazardous wastewater. Thus, they have harmful impacts when discharged in non-treated or partially treated forms in the environment (air, soil, plants and water), causing several human diseases. In the present work we focused on synthetic dyes. We started by studying their classification which depended on the nature of the manufactured fiber (cellulose, protein and synthetic fiber dyes). Then, we mentioned the characteristics of synthetic dyes, however, we focused more on their negative impacts on the ecosystem (soil, plants, water and air) and on humans. Lastly, we discussed the applied physical, chemical and biological strategies solely or in combination for textile dye wastewater treatments. Additionally, we described the newly established nanotechnology which achieves complete discharge decontamination.

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Section: Biological Treatment Processmentioning

confidence: 99%

Diversity of Synthetic Dyes from Textile Industries, Discharge Impacts and Treatment Methods

Slama¹,

et al. 2021

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“…Dyes are necessary for coloring and finishing the final products' packages of various industries such as textiles, leather, cosmetics, and food (Ribeiro and Veloso 2021;Tang et al 2021). As a consequence of the variety of industrial products, enormous amounts of effluent discharge contaminated with dyes require treatment (Abdulrazzaq et al 2021, Wang et al 2021. The textile industry uses around 30% of synthetic dyes.…”

Section: Introductionmentioning

confidence: 99%

“…Therefore, the dye effluent should be treated carefully before discharge. There are several methods for color removal as coagulation and flocculation (Abdulrazzaq et al 2021), membrane filtration (Mansor et al 2020), foam separation (Soylu et al 2020), and chemical precipitation (Shen et al 2019). A novel approach based on activated carbon is the potential for dye removal.…”

Section: Introductionmentioning

confidence: 99%

Application of response surface methodology for color removing from dyeing effluent using de-oiled activated algal biomass

El-Mekkawi

Abdelghaffar

et al. 2021

Bull Natl Res Cent

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Background Conservation of the ecosystem is a prime concern of human communities. Industrial development should adopt this concern. Unfortunately, various related activities release lots of noxious materials concurrently with significant leakage of renewable resources. This work presents a new biosorbent activated de-oiled microalgae, Chlorella vulgaris, (AC) for biosorption of Acid Red 1 (AR1) from aqueous solution simulated to textile dyeing effluent. The biosorption characteristics of AC were explored as a function of the process parameters, namely pH, time, and initial dye concentration using response surface methodology (RSM). Results Optimization is carried out using the desirability approach of the process parameters for maximum dye removal%. The ANOVA analysis of the predicted quadratic model elucidated significant model terms with a regression coefficient value of 0.97, F value of 109.66, and adequate precision of 34.32 that emphasizes the applicability of the model to navigate the design space. The optimization depends on the priority of minimizing the time of the process to save energy and treating high concentrated effluent resulted in removal % up to 83.5%. The chemical structure and surface morphology of AC, and the dye-loaded biomass (AB) were characterized by Fourier transform infrared spectroscopy (FTIR), scanning electron microscopy (SEM), energy-dispersive X-ray analysis (EDX), and transmission electron microscope (TEM). The activation process transforms the biomass surface into a regular and small homogeneous size that increases the surface area and ultimately enhances its adsorption capacity Conclusion The optimization of the process parameters simultaneously using RSM performs a high-accurate model which describes the relationship between the parameters and the response through minimum number of experiments. This study performed a step towards an integrated sustainable solution applicable for treating industrial effluents through a zero-waste process. Using the overloaded biomass is going into further studies as micronutrients for agricultural soil.

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“…Therefore, the removal of dyes in industrial wastewater is one of the important research contents in the field of environmental protection. , The most commonly used method to treat dye wastewater is adsorption. − However, traditional adsorbents, such as activated carbon − and resins, , have problems such as difficult elution, loss of adsorbents, and high energy consumption when adsorbing dyes, which fail to achieve harmless treatment of dye wastewater. At present, there are many types of dyestuffs in common use, among which the anionic dyestuffs are the most widely used because of their rich variety, complete color, and good dyeing effect. , Therefore, the development of adsorbents to remove anionic dyestuffs in water has a wide range of application value and prospects.…”

Section: Introductionmentioning

confidence: 99%

“…At present, there are many types of dyestuffs in common use, among which the anionic dyestuffs are the most widely used because of their rich variety, complete color, and good dyeing effect. 17,18 Therefore, the development of adsorbents to remove anionic dyestuffs in water has a wide range of application value and prospects.…”

Section: Introductionmentioning

confidence: 99%

Multilayer Structure Ammoniated Collagen Fibers for Fast Adsorption of Anionic Dyes

et al. 2021

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Dye wastewater has become one of the difficult industrial wastewaters due to its significant characteristics such as high chroma and poor biodegradability. Here, we use collagen fibers (CFs) as the matrix, glutaraldehyde as the cross-linking agent, and polyethyleneimine (PEI) as the ammoniating modifier to prepare cationic-modified collagen fibers (CF-PEI). The CF-PEI still maintained the original fibrous structure with a larger adsorption area. The content of primary amino groups on CF-PEI was significantly increased, which not only improved the hydrophilic swelling performance of CFs but also improved the adsorption capacity. The adsorption capacity of CF-PEI for soap yellow and acid red could reach 538.2 and 369.7 mg g–1, respectively. The adsorption rate was fast, and the adsorption equilibrium could be reached in about 60 min. Desorption regeneration studies have shown that 0.1 mol L–1 HCl could achieve a better desorption effect, and the CF-PEI had a good recycling performance. The ammoniated modified CF-PEI was an excellent adsorption treatment material for anionic dye wastewater. It is expected to become an effective way for high-value resource utilization of waste dander in the leather industry.

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Coupling of electrocoagulation and microflotation for the removal of textile dyes from aqueous solutions

Cited by 40 publications

References 30 publications

Diversity of Synthetic Dyes from Textile Industries, Discharge Impacts and Treatment Methods

Diversity of Synthetic Dyes from Textile Industries, Discharge Impacts and Treatment Methods

Application of response surface methodology for color removing from dyeing effluent using de-oiled activated algal biomass

Multilayer Structure Ammoniated Collagen Fibers for Fast Adsorption of Anionic Dyes

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