Acoustic and hydrodynamic cavitation assisted hydrolysis and valorisation of waste human hair for the enrichment of amino acids

Bhat, Akash P.; Holkar, Chandrakant R.; Jadhav, Ananda J.; Pinjari, Dipak V.

doi:10.1016/j.ultsonch.2020.105368

Cited by 10 publications

(2 citation statements)

References 52 publications

(51 reference statements)

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“…It has been demonstrated that hydrodynamic cavitation is an efficient technique in terms of energy consumed and operating cost for disinfecting well water and effluents [17,18], Shivram y col [19]. HC is an emerging technology that has been used for different applications and in industry, for example, for the extraction of soy proteins [20], extraction of lipids form microalgae [21], disruption of yeast cells for extraction of bioactive compounds [22], reduction of coagulating bacilli in milk processing [23], waste processing and human hair recovery [24], among others. With respect to the treatment of water, its application focuses on improving biological treatments, as it increases the biodegradability of organic matter present in water, contributes to improving anaerobic digestion of sludge by disintegration of sludge and improves sludge dewatering, etc.…”

Section: Research Backgroundmentioning

confidence: 99%

Laboratory-scale hydrodynamic cavitation assessment for the disinfection of filtered water in the municipality of Florencia- Caquetá

Aguirre¹,

Valencia²

2021

ing. Solidar

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This article is the result of the research "evaluation of hydrodynamic cavitation at laboratory scale for the disinfection of raw water in the municipality of Florencia-Caquetá", a study carried out at the facilities of the University of Amazonia - Macagual Research Headquarters between 2018 and 2019. This presents the results of hydrodynamic cavitation tests for the disinfection of filtered water in the municipality of Florencia, Caquetá. A removal of 98.62% of fecal coliforms was achieved for the greatest reduction of area in the venturi throat and pH 8.5, in a period of time of 60 minutes, this fact allows to determine that the technique is efficient, but it must be complemented with the use of disinfectant agents that present residual effect, the benefit is in the reduction of the dose of chemical disinfectant agent.

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Section: Research Backgroundmentioning

confidence: 99%

Laboratory-scale hydrodynamic cavitation assessment for the disinfection of filtered water in the municipality of Florencia- Caquetá

Aguirre¹,

Valencia²

2021

ing. Solidar

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“…El t ratamiento y recuperación de estas aguas en plantas de tratamiento requieren a veces una gran infraestructura con métodos tradicionales y en otro consumo de productos químicos, por lo que es necesario buscar otras tecnologías ambientalmente amigables, el tratamiento de estas aguas por cavitación hidrodinámica -ozono es una de estas alternativas. Este proceso es una técnica de oxidación eficiente basado en la formación de cavidades debido a la caída de presión por debajo de la presión de vapor del líquido producido por un dispositivo cavitador (placa de orificio o Venturi) y luego al retoma r y recuperar la presión aguas abajo por aumento del área de flujo ocurre el colapso de la cavidades (burbujas) con la consecuente generación de energía aumento y temperatura, que produce radicales libres con efectos químicos que degradan a los contaminantes [8]. LA presencia de Ozono permite una oxidación rápida en eliminación de sustancias tóxicas y no degradables de microorganismos por su poder oxidativo y formación de radicales hidroxilos (OH) [9].…”

Section: Introductionunclassified

Clean technology for domestic wastewater treatment: dynamic hydrocavitation-ozone

Benites,

Castañeda,

Acosta

et al. 2022

Proceedings of the 20th LACCEI International Multi-Conference for Engineering, Education and Technology: “Education, Research A

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Faced with the global hydrological crisis, the generation of more than 80% of the wastewater discharged into the ecosystem without prior treatment is a serious problem. The research focused on the treatment of wastewater that comes from the domestic activities of an urban housing complex, the same ones that presented organic compounds such as: fats, proteins, blood, urine and feces that imply high values of biological oxygen demand. (BOD) and chemical oxygen demand (COD) and fecal coliforms. There are several methods to treat this wastewater; however, the research accounts for the treatment of domestic wastewater through the hydrocavitation and ozone dynamic (HCD-O3) system. The results indicated that it was 100% efficient for the reduction of fecal coliforms after 80 minutes of treatment, while other physicochemical parameters such as oils and fats, BOD and COD were less efficient. The method turns out to be an alternative with environmental advantages by not using chemical products, as well as being easy to implement.

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Acoustic and hydrodynamic cavitation assisted hydrolysis and valorisation of waste human hair for the enrichment of amino acids

Cited by 10 publications

References 52 publications

Laboratory-scale hydrodynamic cavitation assessment for the disinfection of filtered water in the municipality of Florencia- Caquetá

Laboratory-scale hydrodynamic cavitation assessment for the disinfection of filtered water in the municipality of Florencia- Caquetá

Clean technology for domestic wastewater treatment: dynamic hydrocavitation-ozone

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