Zobrazeno 1 - 8
of 8
pro vyhledávání: '"Marcelo Portuguez-Maurtua"'
Autor:
Víctor Sánchez-Araujo, Marcelo Portuguez-Maurtua, Pedro Palomino-Pastrana, Mabel Escobar-Soldevilla, Wilfredo Saez Huaman, Elmer Chávez-Araujo, Jose Antonio Llahuilla-Quea, Rommel Luis López-Alvarado, Yuli Anabel Chávez-Juanito, Eliana Contreras López
Publikováno v:
Ecological Engineering & Environmental Technology, Vol 25, Iss 6, Pp 301-315 (2024)
Water quality in rivers is affected as it passes through urban areas; this situation can be improved with good management of water resources. High Andean rivers require further studies to indicate their quality status. In addition, it is important to
Externí odkaz:
https://doaj.org/article/7b8631a076044ca494a3e1fa7a675a51
Autor:
Demetrio Soto-Carbajal, Marcelo Portuguez-Maurtua, Eliana Contreras-López, Mariam- De ia Cruz-Quevedo, Héctor Orlando Chávez-Angulo, José Antonio Llahuilla-Quea
Publikováno v:
Ecological Engineering & Environmental Technology, Vol 25, Iss 2, Pp 157-167 (2024)
Inadequate solid waste management causes risks to the environment. This is exacerbated when local governments fail to conduct a relevant environmental risk assessment. The objective of this research is to evaluate the environmental risks of clandesti
Externí odkaz:
https://doaj.org/article/2f76ee9041af4e4e8b21b2c0e2d0a0e0
Autor:
Wilfredo Saez Huaman, Eliana Contreras-López, Marcelo Portuguez-Maurtua, Víctor Sánchez-Araujo, Pedro Palomino-Pastrana, Mabel Escobar-Soldevilla, Luis Alberto Inostroza-Ruiz, Jose Antonio Llahuilla Quea
Publikováno v:
Ecological Engineering & Environmental Technology, Vol 24, Iss 9, Pp 249-258 (2023)
In developing countries, river monitoring is very limited. Despite environmental and health problems, there is a paucity of information regarding the contaminants phosphates and nitrates. Thus, concentration and health risks, of phosphates and nitrat
Externí odkaz:
https://doaj.org/article/779fa98f925d4c0383e8c47f39f364dc
Autor:
Eliana Contreras-López, Eida Quispe-Mitma, Ana María Muñoz, Ricardo Yuli-Posadas, Marcelo Portuguez-Maurtua, Félix Hugo Milla Flores
Publikováno v:
Scientia Agropecuaria, Vol 14, Iss 2 (2023)
There are several investigations on the use of food waste to remove contaminants by adsorption. However, a simple route, without chemical activation reagents, is needed for the development of adsorbents. The aim of this study was to develop an adsorb
Externí odkaz:
https://doaj.org/article/06e35c85876549c7a70827361e30e7f7
Autor:
Marcelo Portuguez-Maurtua, Jose Luis Arumi, Alejandra Stehr, Octavio Lagos, Eduardo Chávarri-Velarde, Daniela Rivera-Ruiz
Publikováno v:
Water, Vol 15, Iss 6, p 1053 (2023)
Flash floods, produced by heavy seasonal rainfall and characterized by high speeds and destructive power, are among the most devastating natural phenomena and are capable of causing great destruction in very little time. In the absence of hydrologica
Externí odkaz:
https://doaj.org/article/f295a4f76d0747bfb991824bd49001d3
Autor:
Marcelo Portuguez-Maurtua, José Luis Arumi, Octavio Lagos, Alejandra Stehr, Nestor Montalvo Arquiñigo
Publikováno v:
Water, Vol 14, Iss 11, p 1799 (2022)
As precipitation is a fundamental component of the global hydrological cycle that governs water resource distribution, the understanding of its temporal and spatial behavior is of great interest, and exact estimates of it are crucial in multiple line
Externí odkaz:
https://doaj.org/article/ff7b677003174277ab4a3bcf5046ab57
Autor:
Ricardo Ángel Yuli-Posadas, Ana María Muñoz, Marcelo Portuguez-Maurtua, Fernando Ramos-Escudero, Eliana Contreras-López, Víctor Raúl Miyashiro Kiyan, Humberto Garayar-Tasayco, Jaime Carlos Porras Cerron
Publikováno v:
Sustainability
Volume 13
Issue 16
Sustainability, Vol 13, Iss 8994, p 8994 (2021)
Volume 13
Issue 16
Sustainability, Vol 13, Iss 8994, p 8994 (2021)
This study aimed to evaluate the adsorption capacity of an adsorbent obtained using sanky peel for the removal of phosphate from aqueous solutions. The study was conducted in two stages: (1) adsorbent preparation considering yield, phosphate removal,
Publikováno v:
Naturaleza y Sociedad.
The objective of this study is the generation of thematic map of Number of Curves for the territory of Peru, a hydrological parameter used by the US Soil Conservation Service (SCS) for the calculation of runoff. The methodology is based on the use of