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Treatment of fish processing industry wastewater using hydrodynamic cavitational reactor with biodegradability improvement

Water science and technology, 2019-12, Vol.80 (12), p.2310-2319 [Peer Reviewed Journal]

Copyright IWA Publishing Dec 2019 ;ISSN: 0273-1223 ;EISSN: 1996-9732 ;DOI: 10.2166/wst.2020.049 ;PMID: 32245922

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Title:
Treatment of fish processing industry wastewater using hydrodynamic cavitational reactor with biodegradability improvement
Author: Dhanke, Prashant ; Wagh, Sameer ; Patil, Abhijeet
Subjects: Access ; Bacteria ; Biochemical oxygen demand ; Biodegradability ; Biodegradation ; Biological Oxygen Demand Analysis ; Cavitation ; Chemical oxygen demand ; Cod ; Fish ; Hydrodynamics ; Hydrogen Peroxide ; Inlet pressure ; Inlets (waterways) ; Microorganisms ; New technology ; Operating temperature ; Optimization ; Organic matter ; Orifice meters ; Orifices ; Pathogens ; pH effects ; Pollutants ; Pressure ; Processing fishery products ; Processing industry ; Reactors ; Reduction ; Temperature ; Titanium dioxide ; Total oxygen demand ; Waste Water ; Wastewater ; Wastewater treatment
Is Part Of: Water science and technology, 2019-12, Vol.80 (12), p.2310-2319
Description: Water generated from the fish processing industry is contaminated with organic matter. This organic matter present in wastewater increases the biochemical oxygen demand (BOD) and chemical oxygen demand (COD). A new technology, hydrodynamic cavitation (HC) is used to deal with this wastewater produced in fish processing plants. The orifice plate is used in the HC reactor to generate a cavitation effect. The intensification of this technique was carried out with the help of hydrogen peroxide (H O ) and TiO . The treatment of this wastewater is reported in terms of percent degradation in BOD and COD and in biodegradability index (BI). Operating parameters like inlet pressure, pH, operating temperature and H O doses were used to find the optimum condition. 15 g/L of H O gave 69.5% reduction of COD in the 120 min of treatment that also increases BI value to 0.93 at inlet pressure 8 bar, Plate-5, temperature (30 °C), and pH 4. In the ultrasonic cavitation (UC) reactor, COD reduction is 68.7% without TiO and with TiO it is 71.2%. Also, this HC and UC reactor reduced CFU count to a great extent at the same operating conditions.
Publisher: England: IWA Publishing
Language: English
Identifier: ISSN: 0273-1223
EISSN: 1996-9732
DOI: 10.2166/wst.2020.049
PMID: 32245922
Source: MEDLINE
ProQuest Central

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Treatment of fish processing industry wastewater using hydrodynamic cavitational reactor with biodegradability improvement

Copyright IWA Publishing Dec 2019 ;ISSN: 0273-1223 ;EISSN: 1996-9732 ;DOI: 10.2166/wst.2020.049 ;PMID: 32245922

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