Characterization and application of a novel inorganic polymer coagulant: polytianium-silicate-chloride

RSC Advances ◽  
2016 ◽  
Vol 6 (30) ◽  
pp. 24898-24905 ◽  
Author(s):  
Xin Huang ◽  
Baoyu Gao ◽  
Qinyan Yue ◽  
Yan Wang ◽  
Qian Li

A novel inorganic polymer coagulant, polytitanium-silicate-chloride, was synthesized by two approaches: (1) hydroxylation of a mixture of TiCl4 and fresh polysilicic acid; (2) hydroxylated polytitanium chloride combined with polysilicic acid was aged for 2 h.

1991 ◽  
Vol 23 (7-9) ◽  
pp. 1713-1722 ◽  
Author(s):  
T. Hasegawa ◽  
K. Hashimoto ◽  
T. Onitsuka ◽  
K. Goto ◽  
N. Tambo

The authors propose metal-polysilicate complexes as new inorganic polymer coagulants for the removal of colloidal suspensions. In the first part of this paper, procedures of silicic acid polymerization to attain very higher molecular weight polysilicates in a much more stable state than conventional methods are discussed. Then, a procedure for introducing metal ions such as aluminum and iron into the polymerized silicic acid is presented to give coagulation capability, i.e. charge-neutralizing capacity, to the polysilicic acid. Several new inorganic polymers are thus prepared as cationic coagulants. In the final part, the effectiveness of the proposed aluminum- or ferric-polysilicate coagulants for coagulation and flocculation is evaluated by means of conventional jar tests and pilot plant experiments. These studies show that both the resulting water quality and the rate of removal after sedimentation are greatly improved in comparison with conventional inorganic coagulants. Unlike conventional organic coagulants, these inorganic polymer coagulants are considered to be safe for human health because the safety of silicates and metal coagulants has been demonstrated by many years of utilization.


2017 ◽  
Vol 3 (3) ◽  
pp. 33-38 ◽  
Author(s):  
А.V. Аntuseva ◽  
Е.F. Kudina ◽  
G.G. Pechersky ◽  
Y.R. Kuskildina ◽  
А.V., Melgui ◽  
...  

1962 ◽  
Author(s):  
R. J. Brotherton ◽  
A. L. McCloskey ◽  
H. Steinberg ◽  
J. L. Boone ◽  
J. G. Bower ◽  
...  

Sugar Tech ◽  
2021 ◽  
Author(s):  
Arkadiusz Artyszak ◽  
Małgorzata Kondracka ◽  
Dariusz Gozdowski ◽  
Alicja Siuda ◽  
Magda Litwińczuk-Bis

AbstractThe effect of marine calcite, a mixture of ortho- and polysilicic acid as well as orthosilicic acid applied as a foliar spray on the chemical composition of sugar beet leaves in the critical phase of nutrient supply (beginning of July) but also leaves and roots during harvest time in 2015–2016, was studied. The content of silicon in the leaves ranged from 1.24 to 2.36 g kg−1 d.m. at the beginning of July, 3.85–5.34 g kg−1 d.m. during harvest and 2.91–4.20 g kg−1 d.m. in the roots. The foliar application of silicon caused a significant increase in the content of magnesium and calcium in leaves (in July) as compared to the control. The sugar beet consumes approx. 75 kg Si ha−1, which is almost 3.5 times more than P and 20% more than Mg thus proving its importance for its species. About 70% of the silicon taken up by sugar beet is stored in roots and 30% in leaves. The pure sugar yield is most favorably influenced by two- and threefold foliar application of the product containing silicon in the form of orthosilicic acid stabilized with choline, and a threefold mixture of ortho- and polysilicic acid. The increase in the pure sugar yield is not the result of a change in the chemical composition of sugar beet plants, but their more efficient functioning after foliar application of silicon under stress conditions caused by water shortage.


2019 ◽  
Vol 48 (23) ◽  
pp. 8186-8192 ◽  
Author(s):  
Anna M. Kaczmarek ◽  
Rik Van Deun ◽  
Kristof Van Hecke

A purely inorganic polymer built from [Mo8O28]8− units alternately linked by lanthanide ions (Ho3+, Tm3+ and Lu3+) is reported.


2013 ◽  
Vol 357-360 ◽  
pp. 1142-1147 ◽  
Author(s):  
Li Ming Yu ◽  
Zhe An Lu ◽  
Xiao Hui Yuan ◽  
Hui Guo Chen

norganic polymer concrete of a new environment-friendly material has been the hot issue in engineering research so far. For this new material, the main job of the paper includes: we design mixture ratios of inorganic polymer concrete by ourselves, testing the concrete in the age periods of 3, 7, 28 d. The results indicate that this kind of material strength develops mainly in the first 3 d, the strength grows slowly in the later stage; the dry shrinkage of the configured concrete properties are measured, the curve of dry shrinkage shows that the dry shrinkage occurs mainly in the first 14 d and develops slowly in the late; And measure the expansion performance of the concrete member mixed the different categories expansive agent, the results show that the volume growth of mortar specimens to join HCSA expansion agent are obvious; Test results provide a certain basis for the inorganic polymer concrete of micro expansion.


2005 ◽  
Vol 55 (5) ◽  
pp. 309-315 ◽  
Author(s):  
Kaoru Adachi ◽  
Takeru Iwamura ◽  
Yoshiki Chujo

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