Advanced treatment of dairy industrial wastewater using vertical flow constructed wetlands

Yazdani, Vahid; Golestani, Hossein Alizadeh

doi:10.5004/dwt.2019.24335

Cited by 21 publications

(9 citation statements)

References 8 publications

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“…This indicates that COD removal most likely occurred due to microbiological degradation. Normally, those microorganisms are naturally available in the plant's roots and the supporting media 1 . This justification is in good agreement with the suggestion reported by Vergeles et al 40 .…”

Section: Resultssupporting

confidence: 89%

“…Among the food industries, the dairy industry is considered one of the most important and common. Today, the dairy industries are growing to the local community's need for milk and its products 1 . The dairy industry is characterized by various products as a result of a multitude of production lines 2 .…”

Section: Introductionmentioning

confidence: 99%

“…In addition, subsurface flow constructed wetland provides the additional advantage of minimization of odor problems 23 . Recently, many studies have demonstrated the efficiency of constructed wetlands for food processing wastewater treatment such as catfish processing wastewater, 24 slaughterhouse wastewater, 23 bulk milk cooling tank, 19 olive mill wastewater, 20,25 fish processing plant, 26 abattoir effluents, 27 palm oil extraction process, 21 dairy wastewater, 1,8,10,28,29 coffee processing, 30,31 and fruit and vegetation processing plant 32 . However, at the best of our knowledge, the treatment of real industrial dairy wastewater via horizontal subsurface flow‐constructed wetlands without any pretreatment has not been widely reported.…”

Section: Introductionmentioning

confidence: 99%

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Green sustainable technology for biotreatment of actual dairy wastewater in constructed wetland

Mohammed

Ismail

2020

J of Chemical Tech & Biotech

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BACKGROUND Due to the environmental problems caused by food processing wastewaters and their complex and expensive treatment methods, it becomes mandatory to seek a sound, sustainable and environmentally friendly solution such as constructed wetland (CW). This study aimed to investigate the potential of treating real dairy wastewater in CW. Six horizontal subsurface flow CW microcosms were set up using different conventional and cost‐effective supporting media, which were gravel, soil and sand. All the CWs were fueled continuously with real fresh dairy wastewater. Five of the six CW microcosms were planted with Canna indica. The remaining CW microcosm was kept unplanted and was considered as a control microcosm. RESULTS The results revealed significant removal efficiencies of organic matter (as chemical oxygen demand) up to 89.92%, 97.6%, 95.8%, 97.2%, 97.3% and 98.2%, for CW1, CW2, CW3, CW4, CW5 and CW6, respectively. Also, high removal efficiencies of ammonium were observed in the range of 98.4–82.0%, whereas removal efficiencies of total suspended solids were in the range of 99.2–93.4%. CONCLUSION The results demonstrated that the dominant mechanisms for organics and ammonium removal were biodegradation processes. These promising results confirmed the validity of using constructed wetland as a sustainable cost‐effective approach for dairy wastewater treatment. © 2020 Society of Chemical Industry

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Section: Resultssupporting

confidence: 89%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Green sustainable technology for biotreatment of actual dairy wastewater in constructed wetland

Mohammed

Ismail

2020

J of Chemical Tech & Biotech

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“…In another research, dairy effluent was supplied to three beds of a CW having a vertical down‐flow pattern, planted with reeds and rushes in bed 2 and 3 while bed 1 was used as control having soil without any plants. The system provided reduction of COD to 67.62 % for bed 1, 93.62 % for bed 2, and 92.33 % for bed 3, and similarly, total suspended solids (TSS) reduction of 78.50 %, 86.04 %, and 84.18 % in the beds 1–3, respectively 97. Similar research was conducted by Minakshi et al.…”

Section: Wetlands and Hydroponicssupporting

confidence: 72%

Phytoremediation: A Shift Towards Sustainability for Dairy Wastewater Treatment

Agrahari,

Kumar

2023

ChemBioEng Reviews

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Dairy processing industries have emerged as the most swiftly evolving sectors with excessive wastewater generation containing proteins, fat, oils, greases (FOGs), etc. As there is rising strain on energy usage and dependence on water resources, sustainable research focuses on reduction in wastewater generation and developing value‐added goods. An effective and widely explored sustainable technique for treating wastewater is phytoremediation, a plant‐based process. This review aims to analyze phytoremediation as a sustainable alternative for dairy wastewater treatment. It initially briefs about dairy wastewater characteristics and treatment alternatives and discusses constructed wetlands and hydroponic system in detail with mechanism insights and influenced process parameters. Interconnected technologies with phytoremediation and their impact on contaminant transformations, nutrient reuse, and detoxification of pollutants are encompassed. Also, resource recovery and biomass utilization, feedstock enrichment along with the future prospects of integrated hydroponic systems for achieving sustainability with efficient resource recovery are featured.

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“…Such these natural systems have been used to attain goals of wastewater treatment by using natural components and processes, which in turn significantly reduce the use of energy intensive mechanical devices and technical complexity (Piñeyro et al 2019). On the field of scientific research, CWs were made a wonderful contribution in the treatment of food processing wastewater, such as olive mill wastewater (Achak et al 2019;Ait-hmane et al 2018), coffee processing (Said et al 2020;Rahmadyanti et al 2020), dairy wastewater (Tatoulis et al 2017;Sharma et al 2018;Dąbrowski et al 2019;Yazdani and Golestani 2019;Queiroz et al 2020;Schierano et al 2020). Cheese whey is one of the major constituents of dairy industrial wastewater (Sultana et al 2016).…”

Section: Introductionmentioning

confidence: 99%

Prediction of pollutants removal from cheese industry wastewater in constructed wetland by artificial neural network

Mohammed

Ismail

2021

Int. J. Environ. Sci. Technol.

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Due to its flexibility in operation and maintenance, besides its efficiencies in wastewater decontamination, constructed wetland is considered as one of most sustainable significant solutions for pollutants elimination from different industrial effluents. In this study, real food industry wastewater was freshly collected from a cheese manufacturing factory and treated in a constructed wetland of type horizontal flow. A multi-layer artificial neural network model was applied in order to predict the efficiency of the constructed wetlands in regard to pollutants removal. Excellent fitting between the prophesy and experimental outcomes and results was observed with high correlation determination up to 0.9929 as well as small mean square error of 0.0028. The promising results from this study approved the validity of horizontal subsurface flow constructed wetlands in organic loading removal from real industrial cheese whey wastewater as a sustainable and cost-effective treatment technology.

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Advanced treatment of dairy industrial wastewater using vertical flow constructed wetlands

Cited by 21 publications

References 8 publications

Green sustainable technology for biotreatment of actual dairy wastewater in constructed wetland

Green sustainable technology for biotreatment of actual dairy wastewater in constructed wetland

Phytoremediation: A Shift Towards Sustainability for Dairy Wastewater Treatment

Prediction of pollutants removal from cheese industry wastewater in constructed wetland by artificial neural network

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