Results 121 to 130 of about 40,723 (174)

Prevención de las enfermedades infecciosas. Actualización PAPPS en vacunas 2018. [PDF]

open access: yesAten Primaria, 2018
Aldaz Herce P   +8 more
europepmc   +1 more source

Potencial de biodigestores para el tratamiento de efluentes orgánicos en el ámbito rural

open access: yesRevista de la Sociedad Científica del Paraguay, 2016
El agua es un elemento esencial para la vida y uno de los recursos naturales más valiosos, es por ello, que hoy día, la utilización racional del agua es una preocupación a nivel mundial; a pesar de ello, este recurso, es cada vez más escaso, ya que tanto
Federico Vargas Lehner
doaj  

Valoración de las aguas residuales mediante procedimientos analíticos y biológicos Wastewater evaluation by analytical and biological procedures

open access: yesRevista de Salud Ambiental, 2002
Ciertos procedimientos, basados en aproximaciones analíticas y biológicas, están demostrando ser útiles en la valoración del riesgo de las aguas residuales urbanas procedentes de las Plantas de Tratamiento.
A. de la Torre   +5 more
doaj  

Estudio de laboratorio sobre algas aisladas a partir de aguas residuales urbanas

open access: yes, 1984
Several strains belonging to the genera Chlorella, Scenedesmus (Chlorophyceae) and Oscillatoria (Cyanophyceae) have been isolated from urban waste waters where they live as resting stages their culture, both in secondary treatment efluent of the same waste waters and in artificial media, has allowed us to know some of their autoecological preferences ...
Velasco Díaz, J.L.   +4 more
openaire   +1 more source

Metodología para el análisis de contaminantes emergentes en aguas residuales urbanas y ganaderas

open access: yes, 2021
Sample preparation for analysis of organic micro-pollutants in wastewater samples is commonly carried out by solid-phase extraction procedures that allow the co-preparation of several samples but involve different laboratory operations; the sample preparation time required is of the order of several hours in addition to the subsequent chromatographic ...
openaire   +1 more source

[Planetary Health from a prevention and health promotion perspective]. [PDF]

open access: yesAten Primaria
Del Campo Giménez M   +4 more
europepmc   +1 more source

[Food insecurity, environment, and habitability in households in urban and rural areas of Brazil]. [PDF]

open access: yesCad Saude Publica
Ribeiro ECSA   +5 more
europepmc   +1 more source

Depuración de aguas residuales urbanas mediante humedales artificiales en poblaciones pequeñas

open access: yes, 2019
Abstract It hasbeen analysed different types of alternatives that could be introducedin a small village with 1,200 e.i. and 451.44 m3/day of wastewater.It has been decided the system which best fits is the artificial wetlandwith floating macrophytes.Wetland will occupy around 3,700 m2, by this, the removal of pollutant elements will be enough to ...
openaire   +1 more source

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