Austrian Journal of Technical and

reagent hydrosilicate of calcium and aluminum sulfate 
 
№ 
Dose hydrosilicate of calcium, 
mg/l 
dose sulfate aluminum 
mg/l 
 
reduction efficiency 
of the color intensity, 
% 
1 
20 
300 
150 
2 
100 
400 
300 
3 
200 
500 
400 
4 
250 
400 
500 
5 
300 
500 
600 
 
Conclusion 
It is shown that the basis of the proposed 
method of fixing salted sand complex 
additions is the process of translation their 
surface layers (up to 5cm) from the 
freedispersed state to the connected-dispersed 
by forming a structure (crust), consisting of a 
water-macroaggregates — particles> 1.0 mm, 
having mechanical strength (to 3.0 MPa). 
Optimal conditions for the composition of 
additives, hardeners exhibit the maximum 
effects of action, as well as the procedure for 
their introduction into the sand. It is found that 
a composition consisting of 0,26kg/m
2
sawdust and 0,008kg/m
2
GSK (calculated on a 
dry product that provided using a 0.8% 
solution of GSK) is considered optimum and 
promotes crust having a sufficiently high 
strength about 2.4 MPa, and the amount of 
water-resistant aggregates (> 0.25 mm) in the 
structure with equal 69.91% vs. 6.28% in the 
original. Kokand chemical Plant HSC fixer 
composition with sawdust. HSC having a high 
value of specific surface area andrespectively 
the adsorption better than anather sodium.  
Using HSC obtained based on a dilute solution 
(0.05%) waste Kokand chemical Plant — 10% 
solution of calcium chloride in combination 
with a dilute (0.05%) with a solution of 17% 
solution of sodium silicate allows to clean 
wastewater plants the textile industry of dyes, 
capacitance for waste water treatment is not 
used as a finished product,ie to besiege flaked 
various 
colorants 
present 
in 
the 
the 
composition of wastewater. Thus, for example, 
wastewater treatment Fergana cotton mill 
found that the use of the reagent — HSC under 
optimal relationships of its constituent 
component parts (3 parts of a 0.05% solution 
of Kokand chemical Plant calcium chloride 
and 2 parts of a 0.05% solution of sodium 
silicate) in the number 200–600 mg/l in 
combination with aluminum sulfate (200–400 
mg/liter) degree of industrial wastewater 
reaches 94–98%, and thus the proposed 
method well as the first case, distinguishing the 
product is a colloidal dispersion degree at the 
reagent wastewater treatment sodium silicate 
and aluminum helps to improve environment 
ecology. 

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11-12, 2019 
41