ORIGINAL RESEARCH
		
		 
	
	
	
		Investigating Activated Sludge Microbial
Population Efficiency in Heavy Metals Removal
from Compost Leachate
	
	
		Mehrdad Farrokhi1, 2, Mohammad Naimi-Joubani2, Abdollah Dargahi3, Mohsen Poursadeghiyan1, Hamzeh Ali Jamali4
		
			
			Pol. J. Environ. Stud. 2018;27(2):623-627