Introduction:
Lead is one the most successfully recycled material in the world. Over the years lead recycling has greatly matured as a result over half of the lead produced and used each year throughout the world has been used before in other products. Today over 80% of the lead is used in the making of lead-acid batteries which are theoretically speaking 100% recyclable.
Lead recycling however has one critical problem, lead and the many of the by-products produced during the recycling are poisonous. So lead recycling can be broadly divided into to two categories * Removal of lead * Pollution control
Major pollutants in lead recycling: * Lead * Sulfur dioxide and sulfur trioxides * Carbon monoxide * Nitrogen oxides * Arsenic
Impact of lead exposure:
Lead poisoning is the most serious environmental health threat to children and one of the most significant contributors to occupational disease. Lead causes symptoms ranging from the loss of neurological function to death depending upon the extent and duration of exposure. In children, moderate lead exposure is responsible for a significant decrease in school performance, lowering IQ scores, and is linked with hyperactive and violent behavior. Both children and adults can suffer from a range of illnesses including effects on the central nervous system, kidneys, gastrointestinal tract, and blood forming system.
Impact of sulfur dioxide poisoning:
Exposure to very high levels of sulfur dioxide can be life threatening. Exposure to 100 parts of sulfur dioxide per million parts of air (100 ppm) is considered immediately dangerous to life and health.
Long-term exposure to persistent levels of sulfur dioxide can affect your health. Lung function changes were seen in some workers exposed to low levels of sulfur dioxide for 20 years or more. Asthmatics have also been shown to be sensitive to the respiratory effects of low concentrations of
References: http://www.epa.gov/apti/course422/index.html http://www.gravitaexim.com/index.html Wikipedia http://emedicine.medscape.com/article/820431-overview http://www.health24.com/medical/Condition_centres/777-792-1461-1673,18045.asp http://www.emedicinehealth.com/carbon_monoxide_poisoning/article_em.htm#Carbon Monoxide Poisoning Overview http://www.ldaint.org/lead-information/lead-recycling g_legislation-NEQS