Electronic Waste Metal Extrication by Encrusting Process (EWMEEP)

Abstract

Nowadays in the changing environment the pollution grows in an increasing rate due to certain physical, chemical & biological aspects, especially by the inorganic wastages let off from the industries, households and garbage dumping. This may cause harm to all living things especially the electronic waste let off from it. Electronic waste connected health risks may result from direct contact with harmful materials such as lead, cadmium, chromium and brominates flame retardants from inhalation of toxic fumes, as well as from accumulation of chemicals in soil, water and food. E-Waste contains other precious metals that are valuable to the society. In order to recycle the precious metals, a system must include crushing and separating units. The introduction of this system will crush and paves the way for further process of recycling the metals within a certain time period. The system crushes all the components connected in PCBs. The metals such as copper (Cu) and silver (Ag) are characterized differently from the PCBs. These systems are integrated with mechanical crusher, chemical substrate to separate the metals from the wastages. The Encrusting method is employed for separation of Electronic waste. Index Terms-Physical, chemical, biological, electronic, harmful, precious metals, recycling, chemical, extrication and encrusting. I. INTRODUCTION Solid waste is generated from industrial, residential and commercial activities in a given area, and may be handled in a variety of ways. As such, landfills are typically classified as sanitary, municipal, construction and demolition or industrial waste sites. Waste can be categorized based on materials such as plastic, paper, glass, metal, organic waste and especially E-wastes. Categorization may also be based on hazard potential including radioactive, flammable, infectious, toxic and non-toxic. Categories may also pertain to the origin of waste such as electronic gadgets from industrial, domestic, commercial, institutional or construction. Regardless of the origin, content or hazard potential, solid waste must be managed systematically to ensure environmental best practices. As solid waste management is a critical aspect of environmental hygiene, it needs to be incorporated into environmental planning. Inorganic waste particularly electronic waste is the waste consisting of materials that are difficult to biodegradable so that destruction takes a very long time. Some of the materials found in E-waste such as plastic, copper, lead and tin. Some inorganic substances as a whole cannot be explained by nature, while others can only be described in a very long time. Electronics are full of valuable materials including copper, tin, iron, aluminum, fossil fuels, titanium, gold, and silver. Many of the materials used in making these electronic devices can be recovered, reused and recycled, including plastics, metals, and glass. But if diligently working on waste from metal can be re-melted for useful items. Inorganic waste cannot be degraded naturally. With creativity, this waste can...