id	author	title	date	pages	extension	mime	words	sentence	flesch	summary	cache	txt
cet-373	Cheng, H.; Gao, G.; Zheng, S.	Waste Water Treatment of Resorcinol Production 	2017	6	.pdf	application/pdf	3521	227	48	The nitrogen content of ammonium sulphate was determined by formaldehyde method and impurity content of ammonium sulphate was analysed by HPLC. The condensed mole ratio of formaldehyde and organics, neutralized pH value, and the activated carbon adsorption conditions were investigated to achieve the minimum impurities, the qualified nitrogen content, and the best color of ammonium sulphate.	cache/cet-373.pdf	txt/cet-373.txt