Treatment of textile dyeing industry effluent using hydrodynamic cavitation in combination with advanced oxidation reagents

Rajoriya, Sunil; Bargole, Swapnil; George, Suja; Saharan, Virendra Kumar

doi:10.1016/j.jhazmat.2017.12.005

Cited by 152 publications

(62 citation statements)

References 34 publications

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“…Wastewater from the textile industry typically contains dyes and has a high content of organic toxicants, high color, and strong resistance to biodegradation, photolysis and oxidation, and is potentially carcinogenic. If improperly treated or directly discharged into the environment, wastewater containing dyes can destroy the quality of water bodies and pollute the ecological environment [1]. Methylene blue (MB) is an important synthetic dye and was widely used in the field of chemical indicators, dyes, biological dyes and drugs.…”

Section: Introductionmentioning

confidence: 99%

Preparation of KOH and H3PO4 Modified Biochar and Its Application in Methylene Blue Removal from Aqueous Solution

2019

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Improperly treated or directly discharged into the environment, wastewater containing dyes can destroy the quality of water bodies and pollute the ecological environment. The removal of dye wastewater is urgent and essential. In this study, corn stalk was pyrolyzed to pristine biochar (CSBC) in a limited oxygen atmosphere and modified using KOH and H 3 PO 4 (KOH-CSBC, H 3 PO 4 -CSBC, respectively). The biochars were characterized by surface area and pore size, X-ray diffraction (XRD), Fourier transform infrared (FTIR) spectroscopy, X-ray photoelectron spectroscopy (XPS), as well as their behavior in adsorbing methylene blue (MB). Results indicated that the pore structure of CSBC became more developed after modification by KOH. Meanwhile, H 3 PO 4 -CSBC contained more functional groups after activation treatment. The pseudo-second-order kinetic and the Langmuir adsorption isotherm represented the adsorption process well. The maximum MB adsorption capacity of CSBC, KOH-CSBC, and H 3 PO 4 -CSBC was 43.14 mg g −1 , 406.43 mg g −1 and 230.39 mg g −1 , respectively. Chemical modification significantly enhanced the adsorption of MB onto biochar, especially for KOH-CSBC. The adsorption mechanism between MB and biochar involved physical interaction, electrostatic interaction, hydrogen bonding and π-π interaction. Hence, modified CSBC (especially KOH-CSBC) has the potential for use as an adsorbent to remove dye from textile wastewater.

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Section: Introductionmentioning

confidence: 99%

Preparation of KOH and H3PO4 Modified Biochar and Its Application in Methylene Blue Removal from Aqueous Solution

2019

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“…Primeiramente, foram realizados ensaios para uma concentração fixa de catalisador de 0,5 g.L⁻¹, com diferentes concentrações de corante (20,35,50, 75 e 100 mg.L⁻¹), assim como realizado por muitos estudos, que utilizam uma faixa de baixas concentrações para análise, normalmente entre 50 e 100 mg.L⁻¹ (Rajoriya et al, 2018). Posteriormente, o efeito do pH foi avaliado para pH de 3, 5, 7, 9 e 11, com concentração fixa de catalisador de 0,5 g.L⁻¹ e de corante de 20 mg.L⁻¹.…”

Section: Procedimento Experimentalunclassified

FOTOCATÁLISE SOLAR COM TiO2 PARA DEGRADAÇÃO DO CORANTE ALARANJADO G

Oliveira¹,

Andersen²

2018

Blucher Chemical Engineering Proceedings

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RESUMO -Os corantes estão entre os principais resíduos tóxicos gerados pelos processos industriais. A oxidação fotocatalítica se apresenta promissora na degradação desses contaminantes e pode utilizar a luz solar como a fonte de energia. O Alaranjado G (AG) é um corante azo utilizado pela indústria têxtil, cuja degradação por métodos convencionais, como coagulação, separação por membrana e adsorção, é frequentemente ineficiente. O objetivo deste trabalho foi avaliar a degradação do corante AG, utilizando o TiO₂ e a luz solar. Foram avaliados o efeito da concentração de corante, de concentração de catalisador e pH. O estudo revelou que a fotocatálise apresenta alta eficiência em ampla faixa de pH; assim como em concentrações de corante de até 50 mg.L⁻¹; e para concentrações de TiO₂ menores que 0,5 g.L⁻¹.

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“…In the last few years, wastewater from the textile industry has become a big problem which causes an increase in the concentration of environmental pollution in industrial cities, which in turn represents environmental risks [1]. Released wastewater in the textile industry and the chemical dyes can be considered as an important environmental concern, as about 200 L of water is used for every 1 kg of textile production [2].…”

Section: Introductionmentioning

confidence: 99%

Degradation Pattern of Textile Effluent by Using Bio and Sono Chemical Reactor

Al-Sakkaf

Nasreen

Ejaz

2020

Journal of Chemistry

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The research study was conducted to design the ultrasonic-assisted electrochemical reactor and the bioreactor/filter to evaluate the potential applicability of biological trickling filter system and to compare the efficiency of two reactors such as SER and TF for the treatment of textile industry effluents. Also the study to design Sonoelectrolytic process for wastewater treatment of textile industry containing strong color, high temperature, suspended particles and dissolved solid particles has been conducted. Effect to environment and health is caused by oxygen demand (BOD), high chemical oxygen demand (COD). The percentage removal efficiency for wastewater treatment of textile industry by using sonoelectrolytic reactor (SER) was found to be higher than 95% at temperature of 25°C and a pH value of 8.9, while for trickling filter (TF), having adsorbent as a filter medium, efficiency was found to be 95%, and optimum conditions obtained were applied for the treatment of different dye samples. Based on experimental outcomes, it is determined that treatment through SER is done faster than trickling filter because in TF the adsorbent capacity decreases with time and is a time-consuming process, but the chance of deposition on electrodes also increases in SER, so both these processes can yield better results if these problems are eliminated.

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Treatment of textile dyeing industry effluent using hydrodynamic cavitation in combination with advanced oxidation reagents

Cited by 152 publications

References 34 publications

Preparation of KOH and H3PO4 Modified Biochar and Its Application in Methylene Blue Removal from Aqueous Solution

Preparation of KOH and H3PO4 Modified Biochar and Its Application in Methylene Blue Removal from Aqueous Solution

FOTOCATÁLISE SOLAR COM TiO2 PARA DEGRADAÇÃO DO CORANTE ALARANJADO G

Degradation Pattern of Textile Effluent by Using Bio and Sono Chemical Reactor

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