Printing Ink Wastewater Treatment Using Hydrodynamic Cavitation and Coagulants/Flocculants

Zampeta, Charikleia; Paparouni, Chrysanthi; Tampakopoulos, Andreas; Frontistis, Zacharias; Charalampous, Nikolina; Dailianis, Stefanos; Koutsoukos, Petros G.; Paraskeva, Christakis Α.; Vayenas, D.V.

doi:10.1016/j.jenvman.2022.115975

Cited by 6 publications

(3 citation statements)

References 27 publications

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“…At lower dosages, the insufficiency of coagulant for the suspended materials resulted in poor performance. However, the over dosage causes destabilization of flocs and redispersion of the particles into liquid medium . Henceforth, MgCl 2 ·6H 2 O was used at 1 g/L for the pretreatment of the textile effluent.…”

Section: Resultsmentioning

confidence: 99%

“…However, the over dosage causes destabilization of flocs and redispersion of the particles into liquid medium. 32 Henceforth, MgCl 2 •6H 2 O was used at 1 g/L for the pretreatment of the textile effluent. The formed coagulate has a gelatinous texture, varies in colors depending on feed conditions, and potentially have an unpleasant odor due to organic compounds.…”

Section: Optimization Of Coagulationmentioning

confidence: 99%

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A Strategic Study on the Effect of Coagulation on Hydrodynamic Cavitation Treatment of Real-Time Textile Effluents

Malkapuram,

Sonawane,

Seepana

2024

Ind. Eng. Chem. Res.

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An investigation of textile industry wastewater treatment (WWT) using hydrodynamic cavitation (HC) technology was conducted on a laboratory scale. The parameters such as operation time, upstream pressure, geometry parameters, and initial pH were optimized to enhance the performance of HC. The degradation studies were reported in terms of total organic carbon (TOC) and it was identified that the mineralization effect was 14% under optimized conditions. Further, to improve the mineralization effect, oxidizing agents like hydrogen peroxide (H 2 O 2 ) and Fenton reagent (FR) were externally supplied to the HC reactor. It was observed that the TOC removal was improved with the addition of the oxidants. The maximum TOC removal of 27% was reported when FR was introduced externally at 1:10 of Fe 2+ to H 2 O 2 . Subsequently, the effect of coagulation as a pretreatment step on the performance of HC was inspected. Various parameters such as the type of coagulant (magnesium chloride, potassium aluminum sulfate, and ferric chloride), effluent pH, and coagulant dosage were optimized for the maximum turbidity removal. Among them, magnesium chloride showed a better effect with 92% turbidity removal. At optimum conditions, coagulation as a pretreatment step enhanced the HC performance from 27% to 54% on TOC removal. The experimental outcomes indicate that the sequence of coagulation and HC for real-time textile effluent treatment has a great potential to replace existing treatment plants since the scaling up of HC is much easier than the other advanced oxidation processes.

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Section: Resultsmentioning

confidence: 99%

Section: Optimization Of Coagulationmentioning

confidence: 99%

A Strategic Study on the Effect of Coagulation on Hydrodynamic Cavitation Treatment of Real-Time Textile Effluents

Malkapuram,

Sonawane,

Seepana

2024

Ind. Eng. Chem. Res.

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“…The standard procedure of water purification at surface water intakes includes chemical treatment with coagulant and flocculant [1][2][3][4][5][6]. Thus, calculation and adjustment of the correct dosage of the aforementioned chemicals presents a major issue in water treatment processes and is often carried out manually based on current water sample analysis and running tests.…”

Section: Introductionmentioning

confidence: 99%

Prediction of optimal coagulant and flocculant dosage for water treatment at surface water intake

Yalaletdinova,

Malkova,

Vozhdaeva

et al. 2024

E3S Web Conf.

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Reagent treatment is one of the main methods of source water treatment in water supply plants. Suitable values of coagulant and flocculant doses, as a rule, are selected experimentally, and do not vary depending on seasonal changes in indicators. Therefore, to achieve high efficiency of water treatment, there is a need to determine the doses of coagulant and flocculant for the whole year and for separate seasonal periods in order to compare them. Regression analysis allowed us to quantitatively describe the relationships between turbidity, color, oxidizability and hardness of the source water and reagent doses. At the same time the significance of the influence of the listed indicators on the value of coagulant and flocculant doses was determined. The multifactorial relationship between the water quality indicators at the water source (turbidity, color, oxidizability and general hardness) and the parameters of water treatment processes (dosage of coagulant and flocculant) was studied for both the annual cycle and for specific shorter time periods. Calculation of coagulant and flocculant doses for the entire annual period of the water source in practice, makes it possible to predict suitable doses of reagents before trial coagulation. The equations obtained for individual periods take into account the influence of individual factors, and, therefore, will allow to increase the efficiency of water treatment process control, reduce the consumption of reagents and significantly increase the barrier role of water treatment facilities.

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Treatment of Printing Ink Wastewater Using Natural and Synthetic Coagulants

Eid,

El-Marsafy,

Bassyouni

2024

Earth and Environmental Sciences Library

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Printing Ink Wastewater Treatment Using Hydrodynamic Cavitation and Coagulants/Flocculants

Cited by 6 publications

References 27 publications

A Strategic Study on the Effect of Coagulation on Hydrodynamic Cavitation Treatment of Real-Time Textile Effluents

A Strategic Study on the Effect of Coagulation on Hydrodynamic Cavitation Treatment of Real-Time Textile Effluents

Prediction of optimal coagulant and flocculant dosage for water treatment at surface water intake

Treatment of Printing Ink Wastewater Using Natural and Synthetic Coagulants

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