Effects of Different Parameters on Photocatalytic
Oxidation of Slaughterhouse Wastewater
Using TiO2 and Silver-Doped TiO2
Nanoparticles

Bukhari, Kiran Tauseef; Ahmad, Nasir; Sheikh, Irfan Ahmed; Akram, Tayyaba

doi:10.15244/pjoes/90635

Cited by 11 publications

(6 citation statements)

References 41 publications

(48 reference statements)

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“…Additionally, it is also suggested that MO molecules decomposed much easier and faster under both alkali and acidic conditions rather than in neutral condition (pH 7), inclining more towards the acidic condition. This analysis agrees with reports made by [22] and [23]. The catalyst surface was negatively charged in alkaline solutions while positively charged in acidic conditions.…”

Section: ) Effect Of Phsupporting

confidence: 92%

P hotocatalytic A ctivity of Modified TiO 2 for M ethyl O range R emoval

Lim¹,

Tan²,

Lim³

2019

IJEAT

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In this study, the researcher review on the modified TiO2 preparation via wet impregnation method for dye removal application. The bare TiO2 and Ag-TiO2 that have been synthesized undergo characterizations using XRD, FESEM-EDX and UV-Vis spectroscopy. The XRD pattern showed that the synthesized TiO2 was of pure anatase phase. The crystal structure of anatase TiO2 was not disturbed upon doping with Ag. FESEM images revealed that the TiO2 constitutes of various sizes of spherical and square-like shapes. EDX mapping illustrates that dopant metals are dispersed in a uniformed manner onto the TiO2 support and appeared as metal oxide. The bare TiO2 that has been modified acts as a photocatalyst to remove MO through the batch method. The effects of initial dye concentrations (5-25 ppm), pH solutions (2–9), catalyst loadings (0.5–4) g/L,) and light sources (visible, solar, UV) were analyzed. It was discovered that photocatalytic experiment performed using Ag-TiO2 has greater efficiency of MO removal that ranges from 32% to 100% in contrast to bare TiO2 with MO removal of 12%-67% for comparable dosages of photocatalyst at initial MO concentration of 5 ppm in both alkaline and acidic conditions under UV irradiation. It was postulated that Ag-TiO2 photocatalyst is the better candidate for effective dye removal.

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Section: ) Effect Of Phsupporting

confidence: 92%

P hotocatalytic A ctivity of Modified TiO 2 for M ethyl O range R emoval

Lim¹,

Tan²,

Lim³

2019

IJEAT

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“…In addition, the decreases in COD and TOC were 88% and 78%, respectively. Bukhari et al (2019) investigated the photocatalytic oxidation method for treating effluent from slaughterhouses. According to the scientists, process efficiency rose with an increase in catalyst dosage and reaction duration but declined with a rise in pH.…”

Section: Photochemical/photocatalytic Methodsmentioning

confidence: 99%

Advanced oxidation processes: a supplementary treatment option for recalcitrant organic pollutants in Abattoir wastewater

Ibigbami,

Adewuyi,

Akinsorotan

et al. 2023

JART

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Animal production and meat processing generate large amounts of waste. Large amount of water containing substantial quantities of biodegradable organic matter are produced as a result of the slaughtering of animals and the routine washing of leftover particles in the abattoir. Blood, fats, oil, and grease, undigested food, suspended materials, etc. are a few examples of the materials that typically contributed organic load to these effluents. Thus, regulatory agencies prohibit the direct discharge of the effluents and solid abattoir wastes into the environment. This is because these wastes are potential pollutants and can increase harmful ecological hazards, therefore, treatment is required before discharge into environment. The advanced oxidation processes (AOPs), a tertiary water treatment method is based on the production of hydroxyl radicals, which brings about its non-selective reaction with water contaminants, allowing mineralization of contaminants and converting them into CO2 and water. AOPs could be applied to oxidize pollutants in abattoir wastewater (AWW), and may be used as a supplementary treatment system. A combined process involving the physical and biological treatments, and AOPs may be used as an alternate form of treatment with the potential for greater effectiveness and dependability. However, the properties of the wastewater, treatment time, influent concentration, type of treatment, and the best treatment technique currently available to comply with the standards will all have a significant impact on treatment efficiencies of AWW.

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“…This process can be enhanced by silver-doped TiO 2 nanoparticles as photocatalyst [42]. Electrons captured by silver react with oxygen more efficiently than those combined with electron hole in TiO 2 .…”

Section: Meat Processing Industrymentioning

confidence: 99%

Application of Advanced Oxidation Process in the Food Industry

Xin¹,

Rehmann²

2020

Advanced Oxidation Processes - Applications, Trends, and Prospects

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Wastewater in the food industry contains recalcitrant organic compounds and a certain degree of toxicity. Present wastewater treatment plants are insufficient in dealing with the increasing complexity of effluents from modern food industries. Improperly treaded wastewaters can lead to spoil soil and are threads to aquatic life. The reaction of these recalcitrant chemicals with reactive radicals is an efficient treatment strategy. Researchers have proposed advanced oxidation processes (AOPs) that generate reactive radicals including ozonation, UV irradiation, (photo-) Fenton process, etc. This chapter reviews laboratory-scale and pilot-scale AOPs to incorporate with conventional pre-treatment methods and to evaluate their effectiveness and factors including operation condition and catalysts to optimize the process. Further research related to novel catalyst synthesis and cost evaluation of pilot-scale study is suggested.

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Effects of Different Parameters on Photocatalytic Oxidation of Slaughterhouse Wastewater Using TiO2 and Silver-Doped TiO2 Nanoparticles

Cited by 11 publications

References 41 publications

P hotocatalytic A ctivity of Modified TiO 2 for M ethyl O range R emoval

P hotocatalytic A ctivity of Modified TiO 2 for M ethyl O range R emoval

Advanced oxidation processes: a supplementary treatment option for recalcitrant organic pollutants in Abattoir wastewater

Application of Advanced Oxidation Process in the Food Industry

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