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

Dhanke, Prashant; Wagh, Sameer; Patil, Abhijeet D.

doi:10.2166/wst.2020.049

Cited by 29 publications

(7 citation statements)

References 24 publications

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“…This is because the positions NT1 and NT2 are from industrial seafood processing areas. The wastewater from seafood processing area contains high levels of organic matters, nutrients and grease [23]. High levels of TP in wastewater effluent would cause overgrowth of plants and algae in the surrounding water bodies.…”

Section: A Characteristics Of Wastewater Effluentmentioning

confidence: 99%

Characteristics of Industrial Effluents in a Coastal Province of Vietnamese Mekong Delta

Giao¹,

Ly²

2023

IJESD

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The study aims to assess the quality of industrial effluent in Bac Lieu province using multivariate statistical analysis. The effluent from wastewater treatments plants were collected at 12 locations with nine parameters including pH, biochemical oxygen demand (BOD), chemical oxygen demand (COD), total suspended solids (TSS), ammonium (N-NH4 +), chloride (Cl−), total nitrogen (TN), total phosphorus (TP) and total coliforms. Effluent quality is compared with national technical regulations on industrial wastewater and seafood processing wastewater column B (QCVN 40:2011/BTNMT and QCVN 11-MT:2015/BTNMT, respectively). Principal component analysis (PCA) was performed to determine the important parameters affecting the quality of industrial wastewater effluent in the study area. The results showed that industrial wastewater effluent was high in organic matters, nutrients, microorganisms which exceeded the allowable limits of QCVN 40:2011/BTNMT and QCVN 11-MT:2015/ BTNMT. Correlation analysis showed that most industrial wastewater effluent parameters were closely correlated proving the treatment systems having problems in its operations. The results of PCA presented that pH, COD, BOD, TSS, TN, TP, N-NH4+ and total coliforms mainly affected industrial wastewater effluent. These parameters would negatively change surface water quality at the receiving water bodies. Improvement of wastewater treatment system efficiency is urgently needed to comply with discharge regulations and to protect precious surface water quality. The study’ results provide useful information for local environmental managers to enhance management strategies to reach the environment sustainable goals in the locality development.

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Section: A Characteristics Of Wastewater Effluentmentioning

confidence: 99%

Characteristics of Industrial Effluents in a Coastal Province of Vietnamese Mekong Delta

Giao¹,

Ly²

2023

IJESD

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“…research trend of industrial wastewater treatment. In addition, due to the complex composition of industrial wastewater, universal variables for sewage assessment are often used for quantitative research in experimental studies, such as COD (the demand of chemical oxygen), VSS (volatile suspended solids), TOC (total organic carbon), SVI (sludge volume index), kinetic rate coefficient, etc (Gagol et al 2018;Dhanke et al 2019).…”

Section: Other Industrial Wastewatermentioning

confidence: 99%

Hydrodynamic cavitation as an efficient water treatment method for various sewage:- A review

Song

Hou

Zhang

et al. 2022

Water Science and Technology

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With the development of industry and the rapid growth of population, the current water treatment technologies face much challenges. Hydrodynamic cavitation as a green and efficient means of water treatment method has attracted much attention. During the hydrodynamic cavitation, enormous energy could be released into the surrounding liquid which causes thermal effects (local hotspots with 4,600 K), mechanical effects (pressures of 1,500 bar) and chemical effects (hydroxyl radicals). These conditions can degrade bacteria and organic substance in sewage. Moreover, the combination of hydrodynamic cavitation and other water treatment methods can produce coupling effect. In this review, we summary the methods of hydrodynamic cavitation and the performance of water treatment for different types of sewage. The application of hydrodynamic cavitation reactors with different structures in water treatment have also been evaluated and discussed. The design and optimization of high-performance hydrodynamic cavitation reactor is the most crucial issues for the application of hydrodynamic cavitation in water treatment. Finally, recommendations are provided for the future progress of hydrodynamic cavitation for water treatment.

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“…With this tremendous increase in production, equal amounts of wastewaters are also generated from this sector. Concern over the wastewaters generated is due to its characteristics of having high organic content, oil, and grease, and salts that make their treatment challenging (Dhanke et al 2019). These characteristics call for the mandatory treatment of these wastewaters toward maintaining quality and acceptability.…”

Section: Introductionmentioning

confidence: 99%

Blend of natural coagulants as a sustainable solution for challenges of pollution from aquaculture wastewater

et al. 2022

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Dependency on sea food has increased owing to its nutrition as well as being complete food. As the production of seafood is enhanced through aquaculture, wastewater release has also improved. The composition of wastewater from aquaculture production has been a concern as it has oil and grease, organic content, etc., which makes its treatment challenging. The present study aims at treating aquaculture wastewater using two natural coagulants—chitin and seeds of Moringa oleifera. The efficiency of the natural coagulants was compared against inorganic chemical coagulant ferric chloride. A blended coagulant with two natural coagulants seeds of Moringa oleifera and chitin was also tested. Jar test apparatus was used in the current experiments, and four coagulant doses were tested against 3 pH ranges, from 6 to 8. The study results showed that the coagulants showed a 30–50% reduction in various physicochemical parameters. Further, the most promising result was obtained with the blended coagulants (di-blend) with 70–81% removal of total nitrogen and total phosphorus and the highest reduction of chloride with 95%. The Fourier-transform infrared spectroscopy showed functionalized groups responsible for coagulation, and X-ray powder diffraction analysis of the blended coagulant indicated the crystallinity and amorphous nature of the compounds. Scanning electron microscope analysis presented a firm and dense structure indicating adsorption of impurities onto the coagulant. Thus, it is evident that natural coagulants can be the solution for the challenges of aquaculture wastewater and specifically the di-blend used in the present is ascertained to be a promising solution.

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

Cited by 29 publications

References 24 publications

Characteristics of Industrial Effluents in a Coastal Province of Vietnamese Mekong Delta

Characteristics of Industrial Effluents in a Coastal Province of Vietnamese Mekong Delta

Hydrodynamic cavitation as an efficient water treatment method for various sewage:- A review

Blend of natural coagulants as a sustainable solution for challenges of pollution from aquaculture wastewater

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