Tofu Industrial Wastewater Treatment with Ozonation and the Adsorption Method using Natural Zeolite&#x0D;

Karamah, Eva Fathul; Anindita, Linggar; Amelia, Devita; Kusrini, Eny; Bismo, Setijo

doi:10.14716/ijtech.v10i8.3471

Cited by 9 publications

(10 citation statements)

References 14 publications

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“…Ozone exposure has excellent potential to inhibit the growth of mycelia growth and conidia germination. Ozonation has been proven to be a method to degrade and reduce the toxicity level of organic and inorganic compounds (Karamah et al, 2019). Moreover, ozone has fungitoxic and fungistatic activity, which is suitable for controlling anthracnose in papaya (Ong et al, 2013) and has also been observed in this study to have the same potential in chili.…”

Section: Quality Analysis 321 Quality Deteriorationsupporting

confidence: 59%

Quality Analysis of Chili Treated with Aqueous Ozone Treatment and Improved Transportation and Handling Technology

Munarso¹,

Kailaku²,

Arif³

et al. 2020

IJTech

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The objective of this research is to study the reduction of chili postharvest losses (PHL) after implementation of aqueous ozone treatment, perforated packaging and refrigerated transportation in inter-city distribution. The completely randomized design method was used in the research, with five levels of combination treatments of chili: (i) aqueous ozone treatment; refrigerated transportation; (ii) no ozone treatment; refrigerated transportation; (iii) aqueous ozone treatment; non-refrigerated transportation; (iv) no ozone treatment; non-refrigerated transportation; and (v) existing handling practice as a control treatment. The study was conducted on a large scale in order to imitate the practice of local traders when distributing chili to other cities, with three repetitions. Each repetition used 850 kg of chili, which was transported from Magelang District, Central Java to Bogor, West Java (541.5 km), a journey of approximately 15-17 hours. Temperature and relative humidity in the vehicles were monitored and recorded. Quality analysis included decayed/damaged chili and chili with inappropriate harvest age, grouped into four types, namely physical/mechanical, physiological, microbiological, and green chili; color and texture. The quantity parameter was determined by measuring weight loss. It was concluded that the implementation of aqueous ozone treatment and improved transportation handling technology using refrigerated vehicles could reduce the postharvest losses of chili by 60.61%. Quantity loss was reduced from 2.16% to 1.82% and quality loss from 6.70% to 1.68%. Moreover, the color and texture (hardness) of the chili was maintained, showing a preserved freshness, which is an important parameter in chili marketing.

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Section: Quality Analysis 321 Quality Deteriorationsupporting

confidence: 59%

Quality Analysis of Chili Treated with Aqueous Ozone Treatment and Improved Transportation and Handling Technology

Munarso¹,

Kailaku²,

Arif³

et al. 2020

IJTech

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“…The maximum increase in BOD/COD of 0.48 (Figure 3c) was attained after ozone pretreatment at a dose of 4 mg/min. Preliminary treatment with ozone provides some advantages for the removal of toxicity in dyes, destruction of aromatic and aliphatic acids , organic material, and enhancing biodegradability (Karamah et al, 2019;Suryawan et al, 2020a). A detention time of 120 minutes and an ozone dose of 4 mg/min yielded 91.6±0.8%…”

Section: Mbbr With Ozone Pre-treatmentmentioning

confidence: 99%

Comparison of Ozone Pre-Treatment and Post-Treatment Hybrid with Moving Bed Biofilm Reactor in Removal of Remazol Black 5

Suryawan¹,

Septiariva²,

Helmy³

et al. 2021

IJTech

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The purpose of this research is to investigate wastewater treatment with ozone pretreatment and post-treatment integrated with Moving Bed Biofilm Reactor (MBBR). Ozonation as a pre-treatment served to increase the Biochemical Oxygen Demand (BOD)/Chemical Oxygen Demand (COD) ratio while as a post-treatment to remove the remaining organic residues. Ozone doses were 1 mg/min, 4 mg/min, 20 mg/min, and 40 mg/min. In the pre-treatment, ozone produced a BOD/COD value of 0.68. The MBBR process had a COD and color removal efficiency of 68.89% and 67%, respectively. In the MBBR process without ozone pre-treatment, the efficiency of COD and color removal were 79.31% and 64.7%, respectively. The effluent treatment results from MBBR were then processed with ozone and showed the highest COD and color removal results of 76.8% and 99%, respectively. In this study, the processing with ozone as post-treatment was better than the pre-treatment.

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“…Tofu-processing wastewater treatment has also carried out by using combination of two-stage biological treatment with filtration system using river stone [11] and bioball [12] as media. Additionally, there are several methods applied for tofu industrial wastewater treatment, such as ozonation and adsorption method using natural zeolite [13], combination of coagulation and filtration methods [14], combination of Coagulation-Flocculation and Membrane [15], and also combination coagulationflocculation and ultrafiltration processes [16]. The use of sequencing batch reactor, and anaerobic baffled reactor using activated sludge were also applied to treatment of tofu wastewater [17,18].The purpose of this community service activity is the application of appropriate technology for treatment of wastewater in the tofu industry in Pekanbaru City with the combination of equalization processes (initial disposal and deposition processes), filtration and phytoremediation.…”

Section: Introductionmentioning

confidence: 99%

Application Of Wastewater Treatment Technology In Tofu Industry, Pekanbaru City

Zahrina

Yenie²,

Eriyati³

2022

IJCS

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Tofu industry produce wastewater with low pH and high pollutant parameters, such as BOD, COD, TSS. Therefore, it is necessary to have a wastewater treatment plant so as not to pollute the environment and cause health problems. The purpose of this community service activity is the application of appropriate technology for processing liquid waste in the tofu industry in Pekanbaru City with a combination of equalization, filtration and phytoremediation processes. This service activity includes several stages, namely counseling to provide understanding to partners about the importance of treating waste, followed by building a liquid waste treatment plant and the application of liquid waste treatment technology. The sewage treatment plant consists of 3 concrete tanks that consisting of equalization, filtration (using coral, porous plastic, jute, gravel, and sand as filter media) and phytoremediation (using water hyacinth plants). This activity has a very positive effect for the owners of tofu industry. The levels of BOD, COD and TSS decreased significantly after the application of this wastewater treatment technology.

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Tofu Industrial Wastewater Treatment with Ozonation and the Adsorption Method using Natural Zeolite

Cited by 9 publications

References 14 publications

Quality Analysis of Chili Treated with Aqueous Ozone Treatment and Improved Transportation and Handling Technology

Quality Analysis of Chili Treated with Aqueous Ozone Treatment and Improved Transportation and Handling Technology

Comparison of Ozone Pre-Treatment and Post-Treatment Hybrid with Moving Bed Biofilm Reactor in Removal of Remazol Black 5

Application Of Wastewater Treatment Technology In Tofu Industry, Pekanbaru City

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