Abstract
Based on the research of Marine plastic garbage recovery method, the discussion of the recovery device and the understanding of the types of ships, this paper designs a multi-stage recovery device for Marine plastic garbage. This device according to the types of the existing Marine plastic garbage and recycling requirements, effective implementation for big (more than 50 cm diameter or width), medium (diameter and width are between 5 mm ~ 50 cm) and micro (diameter or width under 5 mm) type size grade plastic debris automatic classification recycling, determined the primary barb type crawler collection device, second level network intercept type garbage collection device and the third level based on the sponge and activated carbon micro plastic collection device. Recycling and storage of Marine plastic waste to effectively address Marine plastic pollution is consistent with the MARPOL convention on the protection of the Marine environment.
Highlights
There is a certain research foundation for the salvage of surface garbage, it is not able to do the classification of garbage recovery and removal of microplastics in the ocean; it can clear away the small micro garbage
The multi-stage recovery device for Marine plastic waste consists of three stages: the first stage of barb crawler collection device, the second stage of net interception garbage collection device and the third stage of microplastic collection device based on sponge and activated carbon.Its overall structure diagram is shown in figure 1
Operating principle of the system. This design can collect more plastic floating garbage, and in the collection of large and medium-sized Marine garbage, and for the small, micro plastic particles recycling this problem proposed a solution.Firstly, the small and medium-sized plastic garbage is collected and sent to the deck by conveyor belt through the barb-type crawler collection device distributed in front of the ship, and the plastic particles adsorbed on the larger garbage and Marine life are removed by the water flow.For the large garbage and plastic particles that cannot be collected in the first stage, they are collected by the second stage net interception collection device.it provides an excellent environment for the third stage micro-plastic collection device[3]
Summary
PM2.5 in the ocean is "tiny" but changing the world! According to the study, 4.8 million to 12.7 million tons of plastic waste entered the ocean in 2010 alone due to poor management, and on current trends, if the waste management infrastructure is not improved, the cumulative amount of plastic waste entering the ocean is expected to increase by an order of magnitude by 2025.In 2014, 2016 and 2017, the United Nations environment programme (unep) paid special attention to the pollution of floating plastic wastes in the ocean at the UN environment conference.So how to recycle and dispose of Marine plastic waste efficiently has become an urgent problem.The society urgently needs an effective Marine garbage sorting and recycling platform and Marine garbage recycling devices including microplastics to solve the serious problem of Marine garbage pollution[1]. There is a certain research foundation for the salvage of surface garbage, it is not able to do the classification of garbage recovery and removal of microplastics in the ocean; it can clear away the small micro garbage. The multi-stage recycling device we designedf or Marine plastic waste has the following advantages :. (1) A three-stage garbage recycling device is designed, which can effectively realize the classification and recycling of large, medium and micro plastic waste step by step. (3) The device is small in size and easy to install. It can collect micro-plastic particles to reduce pollution to Marine ecology. (4) The third-level microplastic collection part of the device is mainly realized by the multi-functional board, in which the natural fiber net is mainly responsible for the collection of microplastic, to avoid the fish swallowed and into the biological chain to endanger human safety
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