wastewater lagoon sludge: treatment or removal in iran

wastewater lagoon sludge: treatment or removal in iran
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  • How much is municipal wastewater treated in Iran?
  • Total municipal wastewater generated in Iran is 4.61 billion m 3 /y out of which only 42% is treated. The conventional activated sludge process accounted for the largest share (> 60%) in municipal wastewater treatment in Iran. The treatment plants operational costs usually amount up to 0.2 US $/m 3 wastewater.
  • How much wastewater is produced in Iran?
  • Total municipal wastewater generated in Iran is 4.61 billion m3/y out of which only 42% is treated. The conventional activated sludge process accounted for the largest share (>60%) in municipal wastewater treatment in Iran. The treatment plants operational costs usually amount up to 0.2 US $/m3 wastewater.
  • Can sludge be reused in Iran?
  • Most processes used in Iran do not have the ability of biologically removing materials, and most refineries have no plans to reuse effluent. Excess sludge from wastewater treatment is generally released into the environment, while dried sludge can be used as high quality fertilizer for agriculture.
  • What is the history of municipal wastewater collection and treatment in Iran?
  • The main construction and development of municipal wastewater collection and treatment in Iran relates to the Islamic revolution period in 1978. Now, Iran, with 150 municipal WWTPs, covers 23 million inhabitants and the total collected wastewater is more than 3.5 million m 3 /d.