scholarly journals AUTOMATED WASTE COLLECTION CONTAINER LID OPENER PROTOTYPE WITH DISINFECTANT SPRAYER AS PART OF NOSOCOMIAL INFECTION PREVENTION

2021 ◽  
Vol 12 (1) ◽  
pp. 1-14
Author(s):  
Fatahah Dwi Ridhani

Nosocomial infection is a health issues related to the in-hospital activities. One of the indirect cause was the contamination related to the waste disposal activity. All hospital waste was deemed hazardous that it needs extra care during collection. Cross contamination may arises when the waste containers was not treated. To alleviate the problem and to promote healthy habits, this article describe a smart disinfectant sprayed waste collection container and its status reports. By automating the lid opening and closing that was triggered by human proximities using passive infrared detector and ultrasound sensor, it provide convenience in waste disposal. This also prevent cross contamination related with physical contact with the waste container which may induce the nosocomial infection. The container also tracking its remained waste capacity and will report when it was almost full to prevent overflowed and to alarmed for immediate waste pickup. In case of delayed container collection, the lids will remain closed and the light indicator turn to red. The indicator will turn green in normal conditions and turn yellow if the container was almost full. ESP32 was used to interface with ultrasound sensors to approximate the container remaining capacity. Passive infrared sensor and a servo motor was linked to actuates the lid opening and closing. Some disinfectant was sprayed for every detected increase in waste level. The disinfectant aerosol canister was pushed by a DC motor. For reporting, the systems was equipped with LoRa for status report. This systems was tested inside Poltekkes Kemenkes Jakarta II building and could reach at least 80m distance from the report center for reporting.


2021 ◽  
Vol 13 (22) ◽  
pp. 12422
Author(s):  
Piotr Nowakowski ◽  
Sandra Kuśnierz ◽  
Julia Płoszaj ◽  
Patrycja Sosna

The effectiveness of e-waste collection depends on organizational and social factors. Individuals should have easy access to collection points and be aware of proper methods of e-waste disposal. This article investigates the availability, usability, and occurring irregularities of the container collection of small-waste electrical and electronic equipment. The study explores the attitude and behavior of individuals when disposing of small-waste equipment in the South of Poland. The results show that ninety-five percent of supermarkets’ managers responsible for waste management find a growing interest in the disposal of small e-waste by individuals. An increasing number of collection containers encourages residents to dispose of small-waste appliances. More than eighty-three percent of respondents are aware of proper methods of e-waste disposal. Additional information campaigns addressed to residents are required to prevent mixing electrical and electronic waste with other waste and to encourage the disposal of small e-waste. The intention to dispose of small e-waste was declared by only thirty-two percent of respondents. Containers with discarded easy breakable items, such as lamps, should be removed more frequently. The collection containers’ noticeability is evaluated by individuals as of average difficulty. The containers in supermarkets have simple designs and labels indicating the category of waste for disposal. The containers installed in residential areas have attractive designs and advertising slogans. The individuals expect the containers should be available in more locations that are easily accessible from households. The results of this study should be helpful for local authorities, waste collection companies, and waste electrical and electronic organizations, to support design, location selection, and information campaigns for small e-waste container collections.



Author(s):  
Daisy Ganados ◽  
Jessebel Gencianos ◽  
Ruth Ann Faith Mata ◽  
Christopher Sam Pates ◽  
Christine Mariesalvatiera ◽  
...  

Solid waste management is the process of collecting and treating solid wastes. It also offers solutions for recycling items that do not belong to garbage or trash. Reducing and eliminating the adverse impact of waste materials on human health and the environment supports economic development. Quality of life is the primary goal of solid waste management. To ensure environmental best practices, content or hazard potential and solid waste must be managed systematically, and it is needed to be incorporated into ecological planning. This study aimed to assess Bonbon, Clarin, Bohol residents towards the proper implementation of solid waste management. The quantitative-descriptive method of research was used with the aid of a modified standardized survey questionnaire. The data showed that mothers or married respondents aged 21-30 got the highest percentage. Therefore, it shows that they are the ones primarily in charge of household waste management. The Assessment of the implementation of Solid Waste Management was conducted per dimension: Planning and Control, Zero Waste Collection Service, and Waste Disposal System. According to the results, the dimension of Planning and Control was labeled as Strongly Implemented, Zero Waste Collection Service was marked as Moderately Implemented, and Waste Disposal System was categorized as Moderately Not Implemented. Therefore, it shows that the Solid Waste Management in Bonbon, Clarin, Bohol was moderately implemented. Thus, the study's outcome served as a guide to enhance their best practices for the full implementation and sustainability of solid waste management in their locality.



2020 ◽  
Vol 10 (7) ◽  
pp. 2403
Author(s):  
Yanjun Shi ◽  
Lingling Lv ◽  
Fanyi Hu ◽  
Qiaomei Han

This paper addresses waste collection problems in which urban household and solid waste are brought from waste collection points to waste disposal plants. The collection of waste from the collection points herein is modeled as a multi-depot vehicle routing problem (MDVRP), aiming at minimizing the total transportation distance. In this study, we propose a heuristic solution method to address this problem. In this method, we firstly assign waste collection points to waste disposal plants according to the nearest distance, then each plant solves the single-vehicle routing problem (VRP) respectively, assigning customers to vehicles and planning the order in which customers are visited by vehicles. In the latter step, we propose the sector combination optimization (SCO) algorithm to generate multiple initial solutions, and then these initial solutions are improved using the merge-head and drop-tail (MHDT) strategy. After a certain number of iterations, the optimal solution in the last generation is reported. Computational experiments on benchmark instances showed that the initial solutions obtained by the sector combination optimization algorithm were more abundant and better than other iterative algorithms using only one solution for initialization, and the solutions with distance gap were obtained using the merge-head and drop-tail strategy in a lower CPU time compared to the Tabu search algorithm.



2013 ◽  
Vol 2013 ◽  
pp. 1-6
Author(s):  
Wenzhen Chen ◽  
Jianli Hao ◽  
Zhiyun Chen

Aiming at the problem of radioactive waste disposal, the concept and mechanism of self-burial by deep rock melting are presented. The rationality and feasibility of self-burial by deep rock melting are analyzed by comparing with deep geological burial. The heat threshold during the process of contact melting around a spherical heat source is defined. The descent velocities and burial depths of spherical waste containers with varying radius are calculated. The calculated depth is much smaller than that obtained in the related literature. The scheme is compared with the deep geological burial that is currently carried out by the main nuclear countries. It is found that, at the end of melting, a radioactive waste container can reach deep strata that are isolated from groundwater.



2011 ◽  
Vol 2 (1) ◽  
pp. 31-35
Author(s):  
Kian-ghee Tiew ◽  
Kohei Watanabe ◽  
NoorEzlin Ahmad Basri ◽  
Shahrom Md. Zain ◽  
Hassan Basri

This is a study on the 2- bins recycling system at Universiti Kebangsaan Malaysia (UKM) year 2010 to reduce waste disposal at landfills. Fifty sets of 2-bins recycling system were allocated in the Faculty of Engineering and Built Environment, Universiti Kebangsaan Malaysia (UKM). The number of recyclable items found in the recycling and mixed waste bins served as dependent measurements. Results indicated that the recycling containers successfully recovered recyclable items by 49.5%, but still a high proportion of recyclable items thrown into the mixed waste container which is 50.5% which indicates wrong bins usage. Awareness programs are required to increase rate of participation among students.



Author(s):  
Rehan Shaikh

Rapidly growing urbanization and increasing population in all over the world, causing dynamic increase in the amount of waste disposal. Dumping of waste has become a matter of concern all over the world because of the threat to the environment. There comes the pivotal role of the automatic waste segregation system which avoid this unfortunate situation and it also reduces the difficulty of recycling. Currently there is no such system for segregation of metal, dry, and wet waste. This work proposes a On spot automatic waste segregation system that gives the solution to this problem. The benefits of this work are, high potential for waste recovery and the occupational hazards of waste separating workers also reduces.



1958 ◽  
Author(s):  
F. L. Parker ◽  
L. Hemphill ◽  
J. Crowell
Keyword(s):  


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