id	author	title	date	pages	extension	mime	words	sentence	flesch	summary	cache	txt
ap-1632	Drnek, Kryštof	Hygiena 3, a Forgotten Project for Electrolytic Water Treatment	2012	5	.pdf	application/pdf	2687	158	71	Last but not least, there was the problem of electrolytic water treatment. The sludge taken in treatment process must not decompose, sand from the sand pool must contain not more than 10% of dry residue, and the sludge from the sedi- mentation tank must contain not more than 91% of water.	cache/ap-1632.pdf	txt/ap-1632.txt