VPE 511: Environment and Environmental Hygiene (2+1)

CONTROL OF SOIL POLLUTION

• Control of soil pollution includes the following steps.
  • Collection of Waste
  • Disposal of waste
  • Recovery of resources
• Collection of Waste
• The waste products are to be collected in a common place to aid the common treatment processes as a whole . In industries it is done through pipeline to avoid the exposure to greater environment during transport. In municipality it is done in periodical collection in closed containers or plastic bags.
• Disposal of Waste
• Usually land fill method is adopted to dispose solid waste. In this method the waste is put into a deep pit and then covered with soil.
• Recovery of Resources
• This method is adopted to decrease the amount of waste and also to achieve maximum utilization of given resource. Some of the methods include production of biogas, vermicompost, electricity from waste etc.
• Sewage Treatment
• All sewage coming out should be treated in treatment plants before discharging, or using it for irrigation purposes.
• Sludge Treatment
• Sludge is the solid waste after the sewage treatment is known as sludge. Sludge should be properly disposed usually by incineration or by converting it to a useful product.