{"title":"The Effect of Ozone on Rhyzopertha dominica, Tribolium Castaneum, and Technological Properties of Wheat Flour","authors":"Nilly A. H. Abdelfattah, Asmaa M. Marie, S. Fawki","doi":"10.1080/01919512.2023.2171363","DOIUrl":"https://doi.org/10.1080/01919512.2023.2171363","url":null,"abstract":"ABSTRACT As an alternative to synthetic pesticides, ozone has been used to combat insects in stored grain. This study aimed to examine the lethal effect of a minimum dose and time combination on insects, the potential effect on insect spiracles and cuticles, as well as technological properties of wheat flour. At various exposure durations, ozone concentrations of 0.428 g/m3 (200 ppm) were used for 2, 4, and 6 h. Ozone gas was administered to the eggs, larvae, and adults of Rhyzopertha dominica (F.) (Coleoptera: Bostrichidae) and Tribolium castaneum (Herbst) (Coleoptera: Tenebrionidae). For R. dominica, adults were significantly more resistant to ozone gas than the larval and egg stages. For T. castaneum, adults and larvae seem to have a similar ozone susceptibility, and both were more resistant than eggs. This resistance was largely dependent on the insect species and exposure duration. The scanning electron microscope (SEM) showed multi-action on the cuticle, spiracles, and antennae of the insects treated by ozone. Wheat flour exracted from grains exposed to 0.428 g/m3 ozone for 6 h was subjected to further physiochemical analysis. Germination of ozone-treated wheat grains was 77%, compared to 83% of the untreated ones. The chlorophyll content of treated and untreated grains was 1.65 and 1.07 mg/g, respectively. The protein, fat, fiber, ash, and total carbohydrate contents of the ozone-treated samples (wholemeal and flour) did not differ significantly compared to the control. The rheological properties of wheat flour showed that ozone significantly decreased its water absorption (WA) from 56.21 to 55.81% while increasing dough development time (DDT) and dough stability time (DST). All sensorial parameters did not differ significantly between ozone-treated and untreated samples. Pan bread made from the flour of ozone-treated grains was fresher than the control bread.","PeriodicalId":19580,"journal":{"name":"Ozone: Science & Engineering","volume":"17 1","pages":"488 - 502"},"PeriodicalIF":2.7,"publicationDate":"2023-02-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81887416","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Impacts of Elevated Ozone and Ozone Protectants on Plant Growth, Nutrients, Biochemical and Yield Properties of Turnip (<i>Brassica Rapa</i> L.)","authors":"Boomiraj Kovilpillai, Sethupathi Nedumaran, Sudhkaran Mani, Jayabalakrishnan Raja Mani, Sritharan Natarajan, Jagadeeswaran Ramasamy","doi":"10.1080/01919512.2023.2165475","DOIUrl":"https://doi.org/10.1080/01919512.2023.2165475","url":null,"abstract":"An experiment was conducted at Woodhouse farm, Horticultural Research Station, Ooty, during October 2017 to March 2018 to quantify the impact of elevated ozone and ozone protectant spray on plant growth, nutrients, biochemical and yield properties of turnip crop. The experiment was laid out in a factorial completely randomized block design and was replicated thrice. Elevated ozone exposure on turnip significantly reduced the plant height, tuber size, tuber weight, chlorophyll ‘a,’ chlorophyll ‘b’ and total chlorophyll content as well as the nutrient content of plant, viz., total nitrogen, total potassium, total manganese, iron, zinc and copper, also affected. Elevated ozone exposure significantly increased the antioxidant enzyme activity like catalase and peroxidase activity in addition to increment in total phosphorus content in leaf tissues. However, ozone protectants played a major role in nullifying the tropospheric ozone effect on growth and development, physiological traits and yield of turnip while tested with panchagavya performed better followed by neem oil and ascorbic acid.","PeriodicalId":19580,"journal":{"name":"Ozone: Science & Engineering","volume":"27 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135545367","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Explicating the effect of the ozonation on quality parameters of onion (Allium cepa L.) in terms of pungency, phenolics, antioxidant activity, colour, and microstructure","authors":"P. Shelake, D. Mohapatra, M. Tripathi, S. Giri","doi":"10.1080/01919512.2022.2037404","DOIUrl":"https://doi.org/10.1080/01919512.2022.2037404","url":null,"abstract":"ABSTRACT Ozone is a powerful oxidizing agent, so its effect on quality parameters must be considered prior to any potential food application. The effect of gaseous ozone on the quality-related attributes of onion bulbs was examined. Onions were exposed to different ozone concentrations (100, 200, 300 ppm) at pulse mode (i.e., frequency of exposures 1, 2, 3). The pungency imparting pyruvic acid and ascorbic acid contents decreased with an increase in the concentration of ozone and the number of exposures, while total phenol and flavonoid content increased to an effective concentration of 400 ppm of ozone. Higher concentrations inadvertently decreased the antioxidant properties. Ozone treatment resulted in a non-significant decrease in firmness, anthocyanin content, and color of onion. Scanning electron microscopic analysis exhibited structural breakdown in the tunic (outer surface) of ozone-treated onion. At higher concentrations, structural changes were observed up to the first bulb scale.","PeriodicalId":19580,"journal":{"name":"Ozone: Science & Engineering","volume":"1 1","pages":"75 - 88"},"PeriodicalIF":2.7,"publicationDate":"2023-01-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82930417","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Maycon Crispim de Oliveira Carvalho, A. B. Fernandes, H. C. Carvalho, R. Zângaro, Carlos José de Lima
{"title":"Preliminary Study: Disinfection of Colonoscope Using a Reprocessing System Based on a Hydrodynamic Model with Ozonated Water","authors":"Maycon Crispim de Oliveira Carvalho, A. B. Fernandes, H. C. Carvalho, R. Zângaro, Carlos José de Lima","doi":"10.1080/01919512.2022.2164251","DOIUrl":"https://doi.org/10.1080/01919512.2022.2164251","url":null,"abstract":"ABSTRACT Endoscopes are flexible medical instruments that require a high-level disinfection protocol. This study aimed to develop a fluid-dynamic system with ozonated water to obtain high-level disinfection. A colonoscope replica with an internal flexible polytetrafluoroethylene (PTFE) tube was made. The set was then contaminated, washed, and disinfected with ozonated water. The replica was placed in a tank with a fluid-dynamic circuit. The endoscope was submerged into the tank and ozonated water was pumped through the working channel. Quantitative microbiological tests were carried out between the washing stage and disinfection in the fluid-dynamic system with ozonated water. The results indicated that the ozone concentration curve in the water from the 27- liter main tank reached the value of 0.95 mg/L after 20 minutes. No bacterial growth was detected after the replica remained in the hydrodynamic system with ozonated water for 15 minutes. The results showed that the fluid-dynamic system using ozonated water is promising as it enables high-level disinfection of the colonoscope.","PeriodicalId":19580,"journal":{"name":"Ozone: Science & Engineering","volume":"121 1","pages":"419 - 430"},"PeriodicalIF":2.7,"publicationDate":"2023-01-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79590744","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Enhanced photocatalytic and photoelectrochemical investigation of Ce and Eu modified titanium nanotube arrays towards dye removal","authors":"Lobna Mansouri, Dalanda Hamdi, L. Bousselmi","doi":"10.1080/01919512.2022.2163224","DOIUrl":"https://doi.org/10.1080/01919512.2022.2163224","url":null,"abstract":"ABSTRACT Cerium and europium-doped titanium nanotube (Ce and Eu-TNTs) were obtained by one-step electrochemical anodization. SEM micrographs show highly ordered nanotubes for pure- TNTs but less organized and more spaced nanotubes for Ce and Eu-TNTs. The XRD results show that anatase is the dominant phase, and the doping does not change the crystalline phase. EIS plots indicated that Ce/Eu doped TNTs photocatalysts possesses a lower electron transfer resistance than pure TNTs, which is related to an effective separation of photogenerated electron/hole pairs. The photodegradation results showed that Ce-TNTs (0.5 mM) and Eu-TNTs (2 mM) photocatalysts exhibit the best enhancement of AB removal reaching a reaction rate of (kapp = 0.026 min−1, t1/2 = 19 min) and (kapp = 0.020 min−1, t1/2 = 20 min), respectively, under initial pH = 3 and CAB = 10 mg.L−1, compared to (kapp = 0.014 min−1, t1/2 = 35 min) for pure TNTs. The adsorption efficiency carried out in the dark after 30 min is enhanced by Ce and Eu-doping and reaches its maximum to 52.08% for Eu-TNTs (2 mM) compared to only (31.11% and 32.96%), respectively, for Ce-TNTs (0.5 mM) and pure TNTs catalyst. Graphical Abstract","PeriodicalId":19580,"journal":{"name":"Ozone: Science & Engineering","volume":"4 1","pages":"455 - 474"},"PeriodicalIF":2.7,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74422227","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Nicholas Babcock, Nathanael La Breche, Keel Robinson, A. Pisarenko
{"title":"Empirical Modeling of Bromate Formation and Chemical Control Strategies at Multiple Water Reuse Facilities Using Ozone","authors":"Nicholas Babcock, Nathanael La Breche, Keel Robinson, A. Pisarenko","doi":"10.1080/01919512.2022.2161469","DOIUrl":"https://doi.org/10.1080/01919512.2022.2161469","url":null,"abstract":"ABSTRACT As an increasing number of potable water reuse projects consider feasibility of implementing ozonation for achieving disinfection goals and removal of trace organic compounds, bromate formation presents a practical barrier. In this study, data received from five potable water reuse facilities showed that ozone dissolution method such as fine bubble diffusion resulted in lower concentrations of bromate compared to side-stream addition. When using multipoint ozone dissolution some reduction in bromate formation was also observed. Data from these facilities displayed a positive correlation between ozone (as a function of O3:TOC ratio) and bromate formation (as molar ratio of bromide converted to bromate) with lower formation as monochloramine or hydrogen peroxide concentrations increase. This study provides an empirical model with four equations which can be used to estimate the bromate formation and the required monochloramine or hydrogen peroxide dose to achieve adequate bromate control, i.e. below MCL of 10 µg/L, if a desired O3:TOC ratio and initial bromide concentration are known. The empirical model estimates for monochloramine and hydrogen peroxide were found to be in good agreement with experimental data (R2 = 0.96 and R2 = 0.87, respectively) while within a set of boundary conditions expressed by range of concentrations of typical water quality parameters.","PeriodicalId":19580,"journal":{"name":"Ozone: Science & Engineering","volume":"15 1","pages":"446 - 454"},"PeriodicalIF":2.7,"publicationDate":"2022-12-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85282716","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Seyda Herguner Siso, Esin Murrja, Merve Aydemir, Ayse Sueda Al
{"title":"Effect of Different Decontamination Protocols Applied to Blood-Saliva Contaminated Dentin Surfaces of Universal Adhesive Resin Post-Etch on Shear Bond Strength","authors":"Seyda Herguner Siso, Esin Murrja, Merve Aydemir, Ayse Sueda Al","doi":"10.1080/01919512.2022.2159320","DOIUrl":"https://doi.org/10.1080/01919512.2022.2159320","url":null,"abstract":"ABSTRACT This study was performed to evaluate the effect of different decontamination protocols applied to contaminated surfaces on the recovery of adhesion. Different decontamination protocols were applied to molar teeth contaminated with blood and saliva except the control group. 40 third molar teeth were divided into groups according to the applied decontamination protocols: Group 1(control), Group 2 (water rinse), Group 3 (15-sec re-etch), Group 4 (10-sec re-etch), Group 5 (5-sec re-etch), Group 6 (5% NaOCl), Group 7 (2% chlorhexidine gluconate), Group 8 (ozonated water). Universal adhesive resin (Gluma Universal, Heraus Kulzer) was used in the etch and rinse mode according to the manufacturer’s instructions. Nanohybrid composite material was placed in all groups. Then the Shear Bond strengths of all groups were evaluated after applying 5000 thermal cycles (5–55 °C) to each sample. In the limitation of this in vitro study, it has been shown that rinsing with ozonated water of contaminated surfaces with blood and saliva after etching, has increased the micro-shear bond strength (μSBS) values more than that of in control group values. Also, the application of NaOCl, re-etching with 37% phosphoric acid for 15 seconds, and cleaning with CHX, significantly increase the bonding potential.","PeriodicalId":19580,"journal":{"name":"Ozone: Science & Engineering","volume":"10 1","pages":"516 - 525"},"PeriodicalIF":2.7,"publicationDate":"2022-12-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75173423","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Ebru Reyyan Toroz, Yasemin Akdag, Malhun Fakioglu, Sevde Korkut, Ece Sagir Kurt, Ezgi Atli, H. Guven, H. Ozgun, I. Ozturk, M. Ersahin
{"title":"Effects of Ozone Dose and Contact Time on Ozonation Process Performance for Treatment of High Rate Activated Sludge Process Effluent","authors":"Ebru Reyyan Toroz, Yasemin Akdag, Malhun Fakioglu, Sevde Korkut, Ece Sagir Kurt, Ezgi Atli, H. Guven, H. Ozgun, I. Ozturk, M. Ersahin","doi":"10.1080/01919512.2022.2157243","DOIUrl":"https://doi.org/10.1080/01919512.2022.2157243","url":null,"abstract":"ABSTRACT In recent years, there has been an increase in the interest on organic compounds originating from anthropogenic activities. The presence of these micropollutants in waterbodies can be detrimental for the aquatic organisms even at their trace concentrations. Removal of micropollutants from wastewater by conventional treatment methods is quite limited, thereby existing wastewater treatment plants are not capable of removing these micropollutants. This study investigated the removal of 27 micropollutants and conventional pollution parameters by ozonation of the effluent from a pilot-scale high-rate activated sludge system treating municipal wastewater. Different ozone dosages and contact times were tested during the study. Results revealed that 7 out of 27 micropollutants were detected in the effluent. Over 45% chemical oxygen demand (COD) removal and over 65% total suspended solids (TSS) removal were achieved by the ozonation process. Among the various ozone dosage and contact time combinations investigated in the study; 6 mg/L ozone dosage-20 min contact time, and 9 mg/L ozone dosage-10 min contact time alternatives resulted with the best treatment performance in terms of the removal of micropollutants, COD, TSS, and turbidity. A feasibility analysis was conducted to evaluate the best operational conditions from a techno-economic perspective and the results revealed that the unit cost for ozonation process ranged between 0.033 $/m3 and 0.043 $/m3. Additionally, considering the feasibility, 6 mg/L ozone dose – 20 min contact time combination was found as the optimum alternative. Based on the promising results obtained in this study, ozonation can be offered as a polishing step for the effluents of high-rate activated sludge systems for the improving of the effluent quality.","PeriodicalId":19580,"journal":{"name":"Ozone: Science & Engineering","volume":"12 1","pages":"431 - 445"},"PeriodicalIF":2.7,"publicationDate":"2022-12-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79547070","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}