Ozone Technology for Pathogenic Bacteria of Shrimp (<i>Vibrio sp.</i>) Disinfection

Wulansarie, Ria; Rengga, Wara Dyah Pita; Rustamadji,

doi:10.1088/1757-899x/316/1/012068

Cited by 2 publications

(3 citation statements)

References 5 publications

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“…Ozone for example showed the best results in reducing the number of Vibrio spp. in water for shrimp at a pH of 6.7, whereas at higher or lower pH levels the effect was reduced (Wulansarie, Rengga, & Rustamadji, 2018). In the present study, the pH value was 7.8 and it can be assumed that this was above the optimal range for disinfection of Vibrio spp.…”

Section: Discussionmentioning

confidence: 99%

Water disinfection by ozonation has advantages over UV irradiation in a brackish water recirculation aquaculture system for Pacific white shrimp (Litopenaeus vannamei)

Teitge

Peppler²,

Steinhagen

et al. 2020

Journal of Fish Diseases

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By keeping Pacific white shrimp (Litopenaeus vannamei) independent from natural sea water on inland farms in recirculating aquaculture systems (RAS), the production of these animals has become possible in northern European countries. A reduced consumption of water, a low environmental impact and the possibility of high stocking densities and therefore high productivity are the primary advantages of keeping shrimp in RAS. Challenging are the maintenance of high water temperatures and appropriate salinities. Nevertheless, the costs for artificial sea salt can be reduced, as Pacific white shrimp are very tolerant against low and moderate salinity levels and RAS can be operated under brackish water conditions at 10-13‰ salin

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Section: Discussionmentioning

confidence: 99%

Water disinfection by ozonation has advantages over UV irradiation in a brackish water recirculation aquaculture system for Pacific white shrimp (Litopenaeus vannamei)

Teitge

Peppler²,

Steinhagen

et al. 2020

Journal of Fish Diseases

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show abstract

“…Ozonation can take place in three conditions. First is direct ozonation which takes place under acidic conditions with ozone as oxidizer, secondly is ozonation with oxidizing ozone and OH radical which occurs under neutral conditions, and the third is ozonation with OH radical as oxidizer which takes place under alkaline pH conditions [5]. Ozone and OH radicals can reduce organic components in waste because they react with organic pollutants, degrade pollutants by breaking down molecules [6].…”

Section: Introductionmentioning

confidence: 99%

“…In addition to being used for waste treatment, ozone has also been used for various purposes, including disinfection of Vibrio Vulnificus [5], and for the removal of Escherichia Coli bacteria by combining ozone and ultraviolet radiation as disinfectant in drinking water [11]. With the indication that there is a more effective treatment method in tofu waste treatment, the purpose of this study is to determine the optimum pH conditions of ozonation to reduce pollution levels in tofu waste including BOD, COD, and TSS to comply with the maximum level set by the Indonesian government law.…”

Section: Introductionmentioning

confidence: 99%

Effectiveness of Ozonation Process on Treating Tofu Industrial Liquid Waste: Effect of pH Conditions

Wulansarie

Chafidz

Hidayat

et al. 2020

MSF

Self Cite

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The tofu industries in Indonesia produce a considerable amount of liquid waste. Most of these tofu industries do not treat waste properly. Liquid waste is channeled directly to the nearest water stream, and thus the values of COD, BOD and TSS are considerably high, which can damage the aquatic ecosystems. According to the Indonesian government rule (Permen LH no.5/2014), the maximum levels of COD, BOD and TSS are 300 mg/L, 150 mg/L, and 200 mg/L. One of alternative methods to reduce these three parameters is the ozonation method. Ozone is able to break down organic components well because of its strong oxidative properties (2.07 mV) and it can decompose into OH radicals which have stronger oxidative properties (2.80 mV). The objectives of this study are to reduce the levels of COD, BOD and TSS of tofu liquid waste into below of the maximum level set by the Indonesian government rule and to study the effect of pH conditions on the effectiveness of ozonation process. Ozonation is carried out under conditions at acidic pH, alkaline pH, and neutral pH, and with a waste concentration of 10%. Ozonation is done by flowing ozone directly into the waste for 120 minutes with an interval of 30 minutes. The levels of BOD, COD, and TSS before ozonation were 1,200 mg/L, 880 mg/L and 600 mg/L. After ozonation, it was found that the levels of COD, BOD and TSS of the waste without any pre-treatment (or acidic condition) was able to be reduced by 46.6%, 44.5% and 41.6%, respectively. Whereas, in neutral conditions the decreases of COD, BOD, and TSS were about 64.3%, 67.0%, and 62.4%, respectively. Optimum ozonation was found in alkaline conditions with the decreases in COD, BOD, and TSS values were about 85.4%, 84%, and 100%, respectively.

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Ozone Technology for Pathogenic Bacteria of Shrimp (Vibrio sp.) Disinfection

Cited by 2 publications

References 5 publications

Water disinfection by ozonation has advantages over UV irradiation in a brackish water recirculation aquaculture system for Pacific white shrimp (Litopenaeus vannamei)

Water disinfection by ozonation has advantages over UV irradiation in a brackish water recirculation aquaculture system for Pacific white shrimp (Litopenaeus vannamei)

Effectiveness of Ozonation Process on Treating Tofu Industrial Liquid Waste: Effect of pH Conditions

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