Photocatalytic pretreatment of dairy wastewater and benefits of the photocatalyst as an enhancer of anaerobic digestion

Sasidharan, Roshini; Kumar, Arvind; Paramasivan, B.; Sahoo, Abanti

doi:10.1016/j.jwpe.2023.103511

Cited by 5 publications

(3 citation statements)

References 50 publications

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“…Then, organic molecules can experience both oxidative deterioration through interactions with valence band holes, hydroxyl, and peroxide radicals and reductive cleavage through reactions with electrons, resulting in a variety of byproducts and finally mineral end products. Several research have employed the photocatalytic technique to remediate wastewater from wineries and distilleries, dairy industries, molasses industries, candy and sugar industries (Castro et al, 2019;Davididou et al, 2023;Sasidharan et al, 2023), etc. A schematic diagram for photocatalytic water splitting using a Z-scheme with an aqueous redox mediator is presented in Figure 3.…”

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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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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show abstract

“…Note that, since the current research is based on a numerical analysis (and is not experimental in nature) and the evaluation is based on a simulation developed under a mathematical analysis, therefore, data reported in similar literature have been used to collect data. Indeed, the values presented in Table 1 are the average data of dairy wastewater characteristics reported in the literature 50,[52][53][54][55][56][57][58][59][60] . However, the developed simulation and analysis has been done in a way that can be easily generalized for other similar cases.…”

Section: System Descriptionmentioning

confidence: 99%

“…The characteristics of dairy effluent considered for the present research, the values are average data reported in the literature50,[52][53][54][55][56][57][58][59][60] .…”

mentioning

confidence: 99%

Technical and financial feasibility of a chemicals recovery and energy and water production from a dairy wastewater treatment plant

Basem,

Jasim,

Ghodratallah

et al. 2024

Sci Rep

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Due to the high volume of wastewater produced from dairy factories, it is necessary to integrate a water recovery process with the treatment plant. Today, bipolar membrane electrodialysis units (BMEUs) are increasingly developed for wastewater treatment and reutilizing. This article aims to develop and evaluate (technical and cost analyses) a combined BMEU/batch reverse osmosis unit (BROU) process for the recovery of chemicals and water from the dairy wastewater plant. The combined BROU/BMEU process is able to simultaneously produce water and strong base-acid, and reduce power consumption due to the injection of concentrated feed flow into the BMEU. A comprehensive comparative analysis on the performances of two combined and stand-alone BMEU configurations are developed. The proposed combined technology for dairy factory wastewater treatment is designed on a new structure and configuration that can address superior cost analysis compared to similar technologies. Further, the optimal values of permeate flux and current density as two vital and influencing parameters on the performance of the studied dairy wastewater treatment process were calculated and discussed. From the outcomes, the total cost of production in the combined configuration has been reduced by approximately 26% compared to the stand-alone configuration. Increasing the feed concentration rate using the batch reverse osmosis process for the dairy wastewater treatment process can be an ideal solution from an economic point of view. Moreover, point (current density, feed concentration rate, total unit cost) = $$\left(328.9, 7, 14.37\right)$$ 328.9 , 7 , 14.37 can be considered as an optimal point for the economic performance of the studied wastewater treatment process.

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Bio-based functionalized adsorptive polymers for sustainable water decontamination: A systematic review of challenges and real-world implementation

Kasbaji

Mennani

Oubenali

et al. 2023

Environmental Pollution

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Photocatalytic pretreatment of dairy wastewater and benefits of the photocatalyst as an enhancer of anaerobic digestion

Cited by 5 publications

References 50 publications

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

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

Technical and financial feasibility of a chemicals recovery and energy and water production from a dairy wastewater treatment plant

Bio-based functionalized adsorptive polymers for sustainable water decontamination: A systematic review of challenges and real-world implementation

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