2024 - Sustainable Industrial Processing Summit
SIPS 2024 Volume 5. Leite Intl. Symp / Iron and Steel
| Editors: | F. Kongoli, P. Assis, R. Alvarenga Vilela, J.A. de Castro, B. Deo, W. Ferreira Santos Jr., GS. Mahobia, T. Usui |
| Publisher: | Flogen Star OUTREACH |
| Publication Year: | 2024 |
| Pages: | 328 pages |
| ISBN: | 978-1-998384-12-9 (CD) |
| ISSN: | 2291-1227 (Metals and Materials Processing in a Clean Environment Series) |
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ULTRASONIC WAVES FOR THE CONTROL OF LIMNOPERNA FORTUNEI – THE GOLDEN MUSSEL
Gislaine Soares Araujo1; De Braian Araujo2; Ana Cristina de Carvalho1; Afonso Pelli3; Paulo Assis4;1FEDERAL UNIVERSITY OF OURO PRETO, Mariana, Brazil; 2UFOP, Mariana, Brazil; 3FEDERAL UNIVERSITY OF TRIANGULO MINEIRO, Uberaba, Brazil; 4FEDERAL UNIVERSITY OF OURO PRETO, Ouro Preto, Brazil;
Type of Paper: Regular
Id Paper: 261
Topic: 2
Abstract:
In order to verify the effect of ultrasonic waves to control the invasion of the golden mussel, Limnoperna fortunei, three experiments were made with different numbersof individuals and for each experiment the sonicator device was using at 40kHz frequency. In addition, the tests varied in time and days of exposure of the mussels to ultrasonic waves. As a result, several numbers for mortality and decoupling of the analyzedsamples were noted, with significant differences regarding the exposure time per experiment and days in which the sampleswere submitted. Thus, the use of ultrasound to descale and kill the golden musselswas efficient and may be an alternative to control the invasion of L. fortunei.
In 1991, Limnoperna fortunei (Dunker, 1857), also known as the golden mussel, was found at the mouth of the Rio de la Plata and, since then, it has expanded rapidly, mainly along the Paraguay and Paraná rivers. Vessel traffic between Argentina and Brazil has become one of the main causes of golden mussel dispersal (DINIZ, 2010). This invasive species originates from Southeast Asia and has spread to South America through the ballast water of ships coming from China (RIBOLLI et al., 2021).
This bivalve mollusk has a great capacity for proliferation, which is due to its morphological characteristics, such as its shells and its sessile characteristic, in addition to its evolution shaped by the environment (PAULA et al. 2021). Thus, it is expected that invasive alien species without control of their proliferation become an environmental, social and economic problem in environments that are not originally their natural habitat (IBAMA, 2020).
The invasion of golden mussels, for example, generates numerous environmental consequences, compromising biomes, lakes, vegetation cover, water quality, among others. The release of organic material (pseudofeces) by these organisms affects the phytoplanktonic
and zooplanktonic community, causing loss of habitat for some species of fish and other organisms (IBAMA, 2020).
With regard to technologies developed by man, hydroelectric plants are one of the main structures that suffer from the invasion of the golden mussel (PAULA et al., 2021). In addition, net cages are also significantly affected by golden mussel fouling (COSTA et al. 2012). When detecting the presence of larvae in ballast water from contaminated vessels, control strategies must be developed to avoid further contamination and intense propagation of the species, mitigating its impacts (SANTOS; WÜRDIG; MANSUR; 2005).
The first National Strategy on Invasive Exotic Species defined criteria for analysis and classification of species and, according to CONABIO Resolution nº 5, of October 21, 2009, the golden mussel can be categorized as an exotic and invasive species, since its Dispersion translates into social, economic and environmental risks. Therefore, it is important to develop strategies to mitigate and contain its dispersion and/or impact (MINISTÉRIO DO MEIO AMBIENTE, 2009).
Control methods with ultrasonic waves for golden mussels in hydroelectric power plants are still the subject and there is not a significant amount of related studies, however, their application has been shown to be significant (PEREIRA, 2012). The elaboration of analysis around this exotic species, exploring the ultrasonic techniques, shows promise in fulfilling the objectives of containment and control of the proliferation of L. fortunei, as well as, consequently, mitigating its implications in the environment, society and economy.
OBJECTIVES
General objectives
To verify the effect of ultrasonic waves on the control of golden mussels.
Specific objectives
Carry out and publicize the ultrasonic technique for controlling the golden mussel;
Understand, in the literature, how the invasions of Limnoperna fortunei affect industries and environments, and the possibilities of control;
Evaluate the influence of ultrasonic waves on the control of golden mussels under different time intervals.
According to Almeida
Despite bringing several consequences to industries with systems already infested by L. fortunei, given the research carried out in recent years, this problem can be solved, since many methods have become efficient in combating mussels, such as the use of sonicator devices.
This study was able to prove the effectiveness of ultrasound for the decoupling and death of golden mussels, which enables their control based on this physical treatment. Therefore, this study becomes extremely relevant, above all, given the need to reduce the economic and environmental impacts caused by the golden mussel which, as mentioned in this research, can range from the obstruction of pumps in hydroelectric plants to impacts on the quality of water and biomes, among other problems.
Finally, it is possible to carry out future research that explores other parameters for the experiments, such as the use of other ultrasound bath devices, as well as different exposure times. Other delimitations that may also contribute to this line of research can address how ultrasonic waves can be used in loco, in order to establish a control method in the place where incrustations cause damage to companies and other environments that need control, thus being able to bring advances to the solutions for controlling the golden mussel through ultrasonic waves.