Preparation and application of a phosphorous free and non-nitrogen scale inhibitor in industrial cooling water systems Guangqing LIU 1, 2 ;Mengwei XUE 1, 2 ;Jingyi HUANG 1 ;Huchuan WANG 1 ;Yuming ZHOU 1, 3 ;Qingzhao YAO 1, 3 ;Lei LING 1 ;Ke CAO 1 ;Yahui LIU 1 ;Yunyun BU 1 ;Yiyi CHEN 1 ;Wendao WU 4 ;Wei SUN 4 ; 1. School of Chemistry and Chemical Engineering, Southeast University, Nanjing 211189, China ; 2. School of Biochemical and Environmental Engineering, Nanjing Xiaozhuang University, Nanjing 211171, China ; 3. Jiangsu Optoelectronic Functional Materials and Engineering Laboratory, Nanjing 211189, China ; 4. Jianghai Environmental Protection CO., Ltd., Changzhou 213116, China ; Fig.3 FT-IR spectra of APEG, APEL and AA-APEL Frontiers of Environmental Science & Engineering,2015,9(3),545-553. Doi:10.1007/s11783-014-0657-x