id	author	title	date	pages	extension	mime	words	sentences	flesch	summary	cache	txt
cord-267680-n1t7by3r	Maurya, Anurag	Biofiltration technique for removal of waterborne pathogens	2020-02-14		.txt	text/plain	6064	356	38	Slow sand filter (SSF) characterized by slow flow rate (0.1–0.2 m(3)/h) and a biological layer over filter bed called schmutzdecke is fairly efficient in removal of coliform microorganisms such as Giardia, Cryptosporidium, Salmonella, Escherichia coli, total coliform and fecal coliform, fecal streptococci, bacteriophage, and MS2 virus from wastewater. However, some studies referred filter media as biofilter without confirming role of indigenous microorganisms or biofilm in removal of pollutants and pathogens. Other factors that were not included in the model such as net surface charge on the filter media and microbial surfaces; media properties (type, size, and depth); hydraulic loading rates; upstream chemical use (oxidants and/or coagulants); water quality variables; flow control; and backwashing and postbackwashing practices may also significantly influence pathogen removal efficiency of filter media.	./cache/cord-267680-n1t7by3r.txt	./txt/cord-267680-n1t7by3r.txt