| Name: | Description: | Size: | Format: | |
|---|---|---|---|---|
| 6.84 MB | Adobe PDF |
Abstract(s)
O presente relatório realizou-se no âmbito do estágio curricular do curso de Mestrado de
Tecnologias Ambientais da Escola Superior de Tecnologia e Gestão de Viseu, que decorreu
na unidade industrial de montagem terminal de veículos automóveis da PSA Peugeot
Citroën Automóveis de Portugal S.A, em Mangualde.
Com o presente trabalho, ao nível da gestão da água, pretendeu-se a reutilização de águas
residuais – efluentes de diferentes fases do processo produtivo e do sistema de tratamento
– na rega dos espaços verdes da unidade industrial; perspetivando a melhoria da Pegada
Ecológica da PSA e a redução de custos do sistema de rega.
Foi caracterizada, qualitativa e quantitativamente, a gestão da água do processo produtivo,
verificando-se uma acuidade particular nas fases do processo com maior consumo de água,
produção de água residual e/ou maior potencial para a respetiva reutilização, sendo
investigada a viabilidade da sua aplicação para rega, analisando-se eventuais opções de
diluição ou tratamento.
Foram aferidas as imposições legais de qualidade de água para rega e, para verificar o
efeito tóxico das águas residuais em espécies vivas, foram realizados testes
ecotoxicológicos a efluentes selecionados e respetivas diluições (0%; 25%, 50% e 75%).
Para testar o efeito imediato da aplicação do efluente, realizaram-se testes de germinação e
de crescimento. Verificou-se que o efluente dos condicionadores de ar gera impacte na
germinação de sementes mas não no crescimento da espécie.
Para avaliar o efeito da acumulação derivada da aplicação continuada do efluente na rega,
aplicou-se um teste de crescimento ao efluente com 75% de diluição; observando-se não
existirem efeitos significativos na espécie.
Para verificar os efeitos da aplicação do efluente dos condicionadores de ar com uma
diluição de 75% num espaço real, fez-se um teste piloto na PSA Mangualde, ao nível da
relva, Hera e de um arbusto. Determinou-se a concentração de clorofila antes e depois da
operação de rega piloto, demonstrou-se impacte na concentração de clorofila b na relva e na
clorofila a e b da Hera.
Assim, nas condições estudadas, não se considera viável a utilização de efluentes
industriais nos espaços verdes da PSA Mangualde.
ABSTRACT: The current curricular internship report of the Masters in Environmental Technology of The School of Technology and Management of Viseu occurred inside the PSA Automobile manufacturing industry, in Mangualde. The goal of this work, related to the water management, was to assess the reuse of waste waters, which came from the production process and the treatment system, in the irrigation of green spaces of the factory in order to improve PSA ecologic philosophy and at the same time reduce costs associated to the irrigation process. It was categorized a qualitative and quantitative of the water management of the production process. It was verified a particular acuity in the phases of the process with a higher water consumption, in the production of waste water and/or its higher potential for reuse. Thus it was considered its feasibility for irrigation by evaluating possibilities of dilution or treatment. It was assessed legal impositions to the water quality for irrigation in order to verify the toxic effect in living species. As a result it was conducted ecotoxicity tests to selected effluents in the corresponding dilutions (0%, 25%, 50% and 75%). In order to test the immediate effect of the application of the effluent, it was conducted germination and growth tests. It was verified that the effluent from air conditionings influences seeds germination but not in the growth of the species. With the aim of evaluating the derived continued accumulation of the effluent in irrigation, it was prepared a growth test to the effluent with 75% of dilution. It was demonstrated that there weren’t significant effects in the species. To verify the effects of the effluent application in air conditionings with a 75% of dilution in a real space, it was conducted a pilot test at PSA Mangualde in some species such as grass, ivy and a bush. It was determined the chlorophyll concentration before and after the pilot irrigation process. It was demonstrated the impact of chlorophyll concentration b in the grass and chlorophyll a and b in the ivy. Thus, in the studied conditions, it is not feasible the use of industrial effluents in the green spaces of PSA Mangualde.
ABSTRACT: The current curricular internship report of the Masters in Environmental Technology of The School of Technology and Management of Viseu occurred inside the PSA Automobile manufacturing industry, in Mangualde. The goal of this work, related to the water management, was to assess the reuse of waste waters, which came from the production process and the treatment system, in the irrigation of green spaces of the factory in order to improve PSA ecologic philosophy and at the same time reduce costs associated to the irrigation process. It was categorized a qualitative and quantitative of the water management of the production process. It was verified a particular acuity in the phases of the process with a higher water consumption, in the production of waste water and/or its higher potential for reuse. Thus it was considered its feasibility for irrigation by evaluating possibilities of dilution or treatment. It was assessed legal impositions to the water quality for irrigation in order to verify the toxic effect in living species. As a result it was conducted ecotoxicity tests to selected effluents in the corresponding dilutions (0%, 25%, 50% and 75%). In order to test the immediate effect of the application of the effluent, it was conducted germination and growth tests. It was verified that the effluent from air conditionings influences seeds germination but not in the growth of the species. With the aim of evaluating the derived continued accumulation of the effluent in irrigation, it was prepared a growth test to the effluent with 75% of dilution. It was demonstrated that there weren’t significant effects in the species. To verify the effects of the effluent application in air conditionings with a 75% of dilution in a real space, it was conducted a pilot test at PSA Mangualde in some species such as grass, ivy and a bush. It was determined the chlorophyll concentration before and after the pilot irrigation process. It was demonstrated the impact of chlorophyll concentration b in the grass and chlorophyll a and b in the ivy. Thus, in the studied conditions, it is not feasible the use of industrial effluents in the green spaces of PSA Mangualde.
Description
Curso de Mestrado Tecnologias Ambientais
Keywords
Gestão da água Setor de montagem automóvel ETARI Reutilização de águas residuais para rega Testes Ecotoxicológicos
Citation
Publisher
Instituto Politécnico de Viseu. Escola Superior de Tecnologia e Gestão de Viseu