Degradation of batik dye wastewater in basic condition by ozonation technique in bubble column reactor

Annisa, Nur; Nadisti, Meidina Sekar; Karamah, Eva Fathul; Bismo, Setijo

doi:10.1051/e3sconf/20186704019

Cited by 5 publications

(3 citation statements)

References 7 publications

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“…At the 60th minute, the end of the experiment, the highest 2,4-DCP degradation, 495 mL/min, was achieved, followed by 405 mL/min, and 255 mL/min. Wastewater or circulation rate contributed to the residence time of liquid in the reactor, which affected the contact time between 2,4-DCP in the liquid and ozone [24] [25]. The residence time was longest at 255 mL/min, but since the system was semi-continuous and a portion of the liquid stayed in the reservoir, this had the least frequent circulation of liquid.…”

Section: Effect Of Wastewater Flow Rate On 24-dcp Degradationmentioning

confidence: 99%

Degradation of 2,4-Dichlorophenol in Aqueous Solution by Ozonation in the Presence of Iron Oxide Compound in Bubble Column Reactor

Wahyudi

Ghaisani

Bismo³

2020

EngJ

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Chlorophenols are a group of chemical substances given special attention by experts and researchers of industrial wastewater due to their high toxicity and low biodegradability. The degradation of these compounds, often used in studies is 2,4-Dichlorophenol (2,4-DCP), either use conventional processing methods or contemporary approaches such as catalytic ozonation and AOPs (Advanced Oxidation Processes). The laboratory-scale 2,4-DCP degradation technique in this study was carried out in a multiinjection bubble column, with very satisfactory processing results. This is mainly due to the ability of hydroxyl radicals to decompose almost all 2,4-DCP in wastewater as well as not giving out a dangerous product. Specifically, the chlorophenol waste used here is a synthetic wastewater or dilute 2,4-DCP solution focused on investigating the effect of air flow rate, wastewater flow rate, and the amount of iron oxide (FeO and / or Fe2O3) involved. This bench scale processing of 2,4-DCP degradation is a semi-continuous, with an initial concentration of 2,4-DCP of 50 ppm and 60 minutes of ozonation time. In this study, the use of FeO and/or Fe2O3 catalysts does not significantly affect the degradation efficiency of 2,4-DCP. With the non-catalytic ozonation technique, the highest percentage of phenolic and COD degradation obtained was 99.83% and 84.31% at an air flow rate of 12 L / min and a wastewater flow rate of 495 mL / min. For catalytic ozonation, the highest phenolic and COD degradation under the same operating conditions was 99.64% and 86.44%.

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Section: Effect Of Wastewater Flow Rate On 24-dcp Degradationmentioning

confidence: 99%

Degradation of 2,4-Dichlorophenol in Aqueous Solution by Ozonation in the Presence of Iron Oxide Compound in Bubble Column Reactor

Wahyudi

Ghaisani

Bismo³

2020

EngJ

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“…The authors noted that with a lower concentration of activated carbon and shorter contact times, about 96% phenol removal was achieved. Annisa et al [35] evaluated the efficiency of ozonation procedures in the removal of phenolic compounds in a bubble column reactor. They found that at 60 min, the removal efficiency for 4-chlorophenol using ozonation was 62.79%, but for RB-19 dye, it was 99.70%.…”

Section: ■ Introductionmentioning

confidence: 99%

Enhancement of Ozonation Reaction for Efficient Removal of Phenol from Wastewater Using a Packed Bubble Column Reactor

2023

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In the ozonation process, the phenol degradation in wastewater undergoes a low mass transfer mechanism. In this study, ozonized packed bubble column reactor was designed and constructed to remove phenol. The reactor’s inner diameter and height were 150 and 8 cm, respectively. The packing height was kept constant at 1 m in accordance with the reactor hydrodynamics. The gas distributor was designed with 55 holes of 0.5 mm. The phenol removal efficiency was evaluated at ozone concentrations of 10, 15, and 20 mg/L, contact times of 15, 30, 45, 60, 75, 90, 105, and 120 min, and phenol concentrations of 3, 6, 9, 12, and 15 mg/L. The results indicated that the highest phenol removal efficiency of 100% was achieved at 30 min in presence of packing. Moreover, the use of packing improved the contact between the gas and liquid, which significantly enhanced the phenol degradation. Actually, a thin film over a packing surface enhances the mass transfer. Also, it was found that the phenol is degraded into CO2 and H2O through a series of reaction steps. Additionally, a kinetic study of a first-order reaction provided an efficient estimation of reaction parameters with a correlation factor of 0.997.

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“…Many studies have been carried out to overcome batik waste, including ozonation [20], electrochemical coagulation [21] and microbial degradation [22]. The disadvantage of this method is that requires complicated and expensive equipment and methods for the home industry scale.…”

Section: Introductionmentioning

confidence: 99%

Preparation and Characterization of Adsorbent from Natural Zeolite Mixed Chicken Feather in Degradation of Batik Waste Dyes Based Green Chemistry

Latifah

2021

JKPK

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<p class="Standard">This research is the adsorption of dyestuffs from batik industry waste. The adsorption method was used chicken feather adsorbent with natural zeolite. Zeolite was activated by HF. Feather flour was activated with 0.2 M KOH. The main focus of this research is determine the potential for dye degradation with the batch method.Samples were analyzed by Atomic Absorption Spectroscopy (AAS), Fourier Transform Infra Red Spectrophotometer (FTIR), and Surface Area Analyzer (SAA). Measurement of dye degradation includes the effect of adsorbent concentration, pH, contact time and particle size of adsorbent. The results showed that the optimum pH in the degradation of dyestuffs from the batik industry waste was pH 8.5. The optimum contact times by activated and unactivated adsorbents were 65 minutes and 120 minutes, respectively. The reaction kinetics analysis showed the Freundlich adsorption model based on the experimental data. This indicates that the surface pores of the adsorbent are very influential in the degradation of the dye. Adsorption capacity of degradation dyestuffs with adsorbents has an efficiency of 94%. In the laboratory, it has been proven that adsorbents are able to degrade dyes in batik waste before being discharged into the water disposal system.</p>

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Degradation of batik dye wastewater in basic condition by ozonation technique in bubble column reactor

Cited by 5 publications

References 7 publications

Degradation of 2,4-Dichlorophenol in Aqueous Solution by Ozonation in the Presence of Iron Oxide Compound in Bubble Column Reactor

Degradation of 2,4-Dichlorophenol in Aqueous Solution by Ozonation in the Presence of Iron Oxide Compound in Bubble Column Reactor

Enhancement of Ozonation Reaction for Efficient Removal of Phenol from Wastewater Using a Packed Bubble Column Reactor

Preparation and Characterization of Adsorbent from Natural Zeolite Mixed Chicken Feather in Degradation of Batik Waste Dyes Based Green Chemistry

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