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Ron Valenzuela, Pablo
Design of an Equipment for the Treatment of Domestic Greywater
Design of an Automatic System for the Heat Shrink Blow Molding Process as a Measure to Reduce Ergonomic Risks
2022
,
Ron Valenzuela, Pablo
,
Fuentes Pérez, Esteban Mauricio
Water is an indispensable resource for human life, its availability is decreasing every time due to pollution, excessive consumption and deforestation, so it must be cared, by saving it and reusing it when possible. The objective of this research is to design an equipment for biological filtration based in the use of sand, which reduces the levels of contamination and allows the reuse of gray water produced in homes; such as: showers, bathrooms, sinks, utensil sinks, among others. Method: For the design of the equipment, it was considered as a specification to comply with the permissible limits for water, permissible parameters of water quality, conceptual design, detail design, materialization design. Results: As a result, the gray water treatment equipment allowed the reduction of contamination, maintaining values below what is requested by the water quality parameters, being able to be reused in toilets and home gardens irrigation. The equipment developed allowed saving of 30 to 40% of the water used inside the house and made possible to reuse between 60 to 70% of the treated gray water. © 2022, The Author(s), under exclusive license to Springer Nature Switzerland AG.
2023
,
Topon Visarrea, Blanca
,
Shuguli R.
,
Ron Valenzuela, Pablo
,
Castillo J.
In many countries, manual lifting of loads, forced postures and repetitive movements are a source of musculoskeletal injuries in the operators of various machines. On a regular basis, repetitive manual operations, when performed continuously, for a long time and without due precaution, cause physical problems in the operators, affecting the production process. In this work, we present the ergonomic intervention in the manual workstation called heat shrink blowing. For this purpose, we included the analysis of the risk level of the workstation, dimensioning of the vertical linear system, the requirements and a comparison of the times and units produced with the manual method. The workstation was analyzed with the JSI method, and the sizing of the linear system based on the weight of the 3 kg heat gun. The result of this design allows to decrease the risk level of the workstation from JSI=13.5 to 1, due to the replacement of the operator by the system, thus protecting his safety, as well as the operation time varies from 2.8 to 3.1 seconds and the quantity of units produced varies between 9412 to 9600 units. These results are possible because this proposal has been received as an investment to optimize production, as well as a strategy to improve the working conditions and health of its employees. © 2023 IEEE.