2.2. Industrial Waste

Industrial wastes are identified as harmful wastes due to their hazardous inorganic and organic constituents. These wastes exhibit common features of hazardous wastes such as harming human health or vital activity of plants and animals (acute and chronic toxicity, carcinogenicity, teratogenicity, pathogenicity, etc.), reducing biodiversity of ecosystems, flammability, corrosive activity, ability to explode, and so on. Hazardaous industrial wastes include oil-polluted soil and sludges, hydroxide sludges, acidic and alkaline solutions, sulfur-containing wastes, paint sludges, halogantaed organic solvents, nonhaloganeted organic solvents, galvanic wastes, salt sludges, pesticide-containing wastes, explosives, and waste waters and gas emissions containing harmful substance. Secondary wastes are produced from the collection, treatment, incineration, or disposal of hazardous industrial wastes, such as sludges, sediments, effluents, leachats, and air emissions. These secondary wastes may also cause soil, water, and air pollution.