JOURNAL OF SHANDONG UNIVERSITY (ENGINEERING SCIENCE) ›› 2010, Vol. 40 ›› Issue (1): 87-92.

• Articles • Previous Articles     Next Articles

Alkalization experiment and coagulation performance ofpoly-silicic-ferric coagulant

  

  • Received:2009-04-12 Online:2010-02-16 Published:2009-04-12

PDF (PC)

1425

Abstract:

Polysilicicferric (PSF) coagulant with various Si／Fe ratios(PSF 0.5and PSF 3 represent Si／Fe molar ratios of 0.5 and 3, respectively), was prepared by co-polymerization. The alkalization experiments of PSF and coagulation performance of PSF in treating surface water collected from the Songhua River and sewagewater from Nangang district in Harbin  were investigated. The results showed that some informationassisted  the reaction mechanism between Si and Fe and the species transformation could be captured by the  alkalization experiment.The alkalization experiment further improved validation of  the SiFe reaction mechanism: much larger morphology based on Si-O-Fe-O-Fe-O-Si bond was immediately formed and then the unstable Fe-O-Fe bond breaks with increasing of thecopolymerization time in lower ratios of PSF (such as PSF 0.5) at initial copolymerization stage. While for higher ratios of PSF (such as PSF 3), only a small amount of Fe3+ participates in complexation with PS at the initial copolymerization stage, and species based on the SiOFeOSiOSi bond was formed. The optimum doses of PSF 05and PSF 3 are 85mg／L and 105mg／L for surfaces water and are 70mg／L and100mg／L for sewage water according to the removal of turbidity, UV254 an

d COD, respectively. PSF 3 gave a lower restabilization dose for turbidity rem

oval than PSF 05, while the contrary was true for UV254 and COD removal.

Key words: Si, Fe, alkalization, coagulation

[1] HUANG Fang, WANG Xin, GAO Guohai, SHEN Lingzhen, FU Xun, FANG Yu. Mining Top-k frequent patterns for graphs based on subjective and objective metrics [J]. Journal of Shandong University(Engineering Science), 2025, 55(6): 1-12.
[2] TANG Jiefeng, ZHANG Jia, LONG Jinyi. Fast multi-label feature selection method based on global redundancy minimization [J]. Journal of Shandong University(Engineering Science), 2025, 55(6): 21-34.
[3] TIAN Tao, JIANG Kun, CAO Junteng, GUO Chunsheng. Mechanism and properties of slotted metallic nickel foam in flow boiling [J]. Journal of Shandong University(Engineering Science), 2025, 55(6): 58-68.
[4] HE Falong, DU Wangfang, MIAO Jianyin, ZHANG Hongxing, HE Jiang, LIU Sixue, LIU Chang, ZHAO Jianfu. Numerical investigation on the operating instability of neon charged cryogenic loop heat pipes [J]. Journal of Shandong University(Engineering Science), 2025, 55(6): 69-75.
[5] WANG Yuou, YUAN Yingchun, HE Zhenxue, HE Chen. University academic named entity recognition based on the fusion of multi-feature and multi-head self-attention mechanism [J]. Journal of Shandong University(Engineering Science), 2025, 55(6): 35-44.
[6] QIU Liqin, WANG Lei, YU Yue, SUN Yahui. Incremental attribute reduction of interval-valued decision-making information systems from the perspective of knowledge granularity [J]. Journal of Shandong University(Engineering Science), 2025, 55(6): 45-57.
[7] SHAO Mengwei, YUAN Shifei, ZHOU Hongzhi, WANG Naihua. Optimisation of finned tube structure based on BP neural network and genetic algorithm [J]. Journal of Shandong University(Engineering Science), 2025, 55(6): 76-82.
[8] WANG Xiaopeng, ZHANG Zhiqiang, ZHAO Hongxia, BAI Chao, CHENG Yiguang, GAO Chenchen, LI Guangpeng. Modeling on icing process of large direct cooling ice maker [J]. Journal of Shandong University(Engineering Science), 2025, 55(6): 83-89.
[9] SONG Yunfei, ZHANG Hongxing, ZHOU Yupeng, YANG Changpeng, XIE Yongqi. Design and experimental research of centrifugally-enhanced involute heat pipe for spacecraft [J]. Journal of Shandong University(Engineering Science), 2025, 55(6): 100-107.
[10] XU Run, LIU Zhikun, SUN Jianxiu, YU Yang, ZHANG Changyong, LIU Yazhen, YUE Hongya, ZHANG Hongbo. Bearing characteristics of dispersed piles with radial constraints from waste tire grids [J]. Journal of Shandong University(Engineering Science), 2025, 55(6): 142-150.
[11] XUE Gang, ZHANG Yifan, LIU Jiangsen, DONG Wei. Inverse analysis on the softening curve of steel slag fine aggregate concrete [J]. Journal of Shandong University(Engineering Science), 2025, 55(6): 120-128.
[12] CAO Fubo, XIAO Shengxian, WANG Chenxia, GAO Delong, LI Dun, SU Tian, QIN Shijie, WANG Yufei. Comprehensive performance evaluation of recycled brick mixed water stabilized material with multiple indicators based on entropy weight TOPSIS [J]. Journal of Shandong University(Engineering Science), 2025, 55(6): 151-162.
[13] ZHOU Qian, LI Qun, ZHU Dandan, LI Yibo. Coordinated inertia response control for offshore low frequency wind power system based on adaptive virtual inertia of M3C [J]. Journal of Shandong University(Engineering Science), 2025, 55(5): 30-39.
[14] CHEN Haoran, QI Xin, TIAN Zhihao, LI Tong, LIU Gang, LI Changgang. Method for predicting photovoltaic generation and ramp rate considering the impact of solar eclipse transit [J]. Journal of Shandong University(Engineering Science), 2025, 55(5): 70-77.
[15] AN Haiyun, ZHOU Qian, LIU Yufang, HUANG Cheng, CHEN Zhe, WU Qiuwei. A hybrid data-mechanism driven approach to active distribution network line loss calculation [J]. Journal of Shandong University(Engineering Science), 2025, 55(5): 51-61.
Viewed
Full text


Abstract

Cited
  Shared   
  Discussed   
[1] YUE Yuan-Zheng. Relaxation in glasses far from equilibrium[J]. JOURNAL OF SHANDONG UNIVERSITY (ENGINEERING SCIENCE), 2009, 39(5): 1 -20 .
[2] HAO Ranhang,CHEN Shouyu . The theory, model and method of water resources evaluationombining quantity with quality[J]. JOURNAL OF SHANDONG UNIVERSITY (ENGINEERING SCIENCE), 2006, 36(3): 46 -50 .
[3] XIA Bin,ZHANG Lian-jun . Energy comparison-based TOA estimation algorithm for the DS-CDMA UWB system[J]. JOURNAL OF SHANDONG UNIVERSITY (ENGINEERING SCIENCE), 2007, 37(1): 70 -73 .
[4] BO De-Yun, ZHANG Dao-Jiang. Adaptive spectral clustering algorithm[J]. JOURNAL OF SHANDONG UNIVERSITY (ENGINEERING SCIENCE), 2009, 39(5): 22 -26 .
[5] . [J]. JOURNAL OF SHANDONG UNIVERSITY (ENGINEERING SCIENCE), 2009, 39(2): 131 -136 .
[6] LI Shijin, WANG Shengte, HUANG Leping. Change detection with remote sensing images based on forward-backward heterogenicity[J]. JOURNAL OF SHANDONG UNIVERSITY (ENGINEERING SCIENCE), 2018, 48(3): 1 -9 .
[7] PAN Duo-tao,LIU Gui-ping,LIU Chang-feng . Screening of microbe producing flocculant and optimizationon its cultural conditions[J]. JOURNAL OF SHANDONG UNIVERSITY (ENGINEERING SCIENCE), 2008, 38(3): 99 -103 .
[8] CHOU Wu-Sheng, WANG Shuo. Study on the adaptive algorithm of the force reflection robotic master under large stiffness of the environment[J]. JOURNAL OF SHANDONG UNIVERSITY (ENGINEERING SCIENCE), 2010, 40(1): 1 -5 .
[9] ZHANG Qin-song, LI Shu-cai, HAN Hong-wei, GE Yan-hui, LIU Ren-tai, ZHANG Xiao. Study on risk evaluation and water inrush disaster preventingtechnology during construction of karst tunnels[J]. JOURNAL OF SHANDONG UNIVERSITY (ENGINEERING SCIENCE), 2009, 39(3): 106 -110 .
[10] LI Chun-xiao， YUE Qin-yan， LU Lei， GAO Bao-yu， YANG Zhong-lian， SI Xiao-hui， NI Shou-qing， WANG Yuan-fang. Synthesis and application of  hydrophobically  associating  cationic  polyacrylamide    [J]. JOURNAL OF SHANDONG UNIVERSITY (ENGINEERING SCIENCE), 2008, 38(6): 99 -104 .
Copyright 2018 © Editorial office of Journal of Shandong University (Engineering Science)
Supported by Beijing Magtech Co.Ltd