Table of contentsProcessing technologyBiosorption treatmentSolidificationIndustries produce different types of waste which include biodegradable, non-biodegradable, toxic and radioactive waste, of which 10-15% are non-biodegradable and hazardous waste. Examples are plastic, glass objects, silver foil, gypsum, etc. The increase Industrial waste is classified into two types: Say no to plagiarism. Get a tailor-made essay on “Why Violent Video Games Should Not Be Banned”? Get the original essay Process waste is waste generated during the processing of raw materials. Inorganic waste from the process can come from chemical industries such as the caustic soda (mercury) industry and the pesticide industry. It includes solid waste such as fly ash which is a by-product of coal combustion. It contains traces of heavy metals and elements like arsenic, beryllium, mercury, chromium, etc., which cause pollution of air as well as ground water. Metal industries also produce solid metal waste and slag. Chemical waste is the byproduct of harmful chemicals. It includes heavy metals, detergents, acids and other toxic substances. They are generally produced by industries such as fertilizer industries (ammonia, cyanide), paper and pulp industries, etc. The waste is released into water bodies or land. It modifies the pH, COD and BOD of these bodies. Aquatic animals and plants absorb, accumulate and bioconcentrate chemical wastes, leading to biomagnifications and ultimately destroying the tropical levels and food chains of the ecosystem. Wastewater containing nitrates and phosphates causes eutrophication (over-enrichment of water bodies with minerals and nutrients). E-waste refers to waste produced from electrical/electronic devices. This waste is increasing largely due to the rapid expansion of technology: as new technologies emerge, old technologies become e-waste. It is estimated that 50 million tons of electronic waste are thrown away every year. And only 15 to 20% of this waste is recycled. Electronic waste includes: cathode ray tubes, circuit boards, computer wires, plastics from device bodies, etc. E-waste is non-biodegradable and toxic. E-waste contains hazardous components such as: Epoxy resins are used as electrical insulators inside electrical components. They contain carcinogenic and mutagenic amines. Lead used to solder electrical components, found in lead batteries, CRT monitor glass is a highly toxic heavy metal. Mercury is found in fluorescent tubes, thermometers, batteries and is extremely toxic. Beryllium oxides used in high-performance semiconductor parts and fillers in thermal paste cause lung cancer and other adverse health effects. Polyvinyl chloride is used for insulation of electrical cables. It causes bioaccumulation of chlorine in bodies of water. As they contain many heavy metals and carcinogenic compounds, we must treat e-waste carefully and hand it over to dealers for recycling. One of the major challenges faced in the recycling of electronic waste is the recycling of PCBs. They contain precious metals like gold,.