Dehydration of the residues of the return water of zaporozhe refractory plant

Refractories ◽  
1984 ◽  
Vol 25 (7-8) ◽  
pp. 425-427
Author(s):  
V. N. Ponomareva ◽  
T. M. Kuzina ◽  
A. M. Levin ◽  
V. S. Yakovleva ◽  
I. S. Lavrov
Refractories ◽  
1988 ◽  
Vol 29 (1-2) ◽  
pp. 106-108
Author(s):  
B. M. Guba ◽  
V. I. Petrosyan ◽  
A. Ya. Varenya ◽  
V. N. Petkov ◽  
N. F. Reznikov

2021 ◽  
Vol 160 ◽  
pp. 106153
Author(s):  
Sarah A. White ◽  
William H.J. Strosnider ◽  
Megan E.M. Chase ◽  
Mark A. Schlautman

2020 ◽  
Vol 120 ◽  
pp. 219-225
Author(s):  
E. V. Birukova ◽  
V. V. Varganov ◽  
N. N. Konchinko

Control of the work quality of chemical and analytical departments of the refractory industry enterprises of Ukraine is one of the activity areas of JSC "The URIR named after A. S. Berezhnoy" and helps to increase the competitiveness of products manufactured by enterprises.The comparison of work quality of chemical-analytical units of refractory enterprises (JSC "KDZ", PJSC "Chasovoyarsk Refractory Plant", JSC "Velikoanadol Refractory Plant") and JSC "The URIR named after A. S. Berezhnoy" was carried out. The discrepancy between the average results of chemical analysis in the chemical-analytical unit of refractory enterprises and in the laboratory of chemical-analytical and structural-phase research of JSC "The URIR named after A. S. Berezhnoy" does not exceed the permissible value of γ in terms of SОU-N МPP 77.080-012:2004. The work quality of chemical-analytical units of central refractory laboratories of all the above mentioned refractory enterprises is satisfactory. Recommendations for improving the accuracy of the chemical analysis results in the refractory enterprises laboratories that participated in the tests are not required.


1930 ◽  
Vol 94 (1) ◽  
pp. 338-344
Author(s):  
R. I. Meeker ◽  
Fred H. Tibbetts
Keyword(s):  

Water ◽  
2019 ◽  
Vol 11 (12) ◽  
pp. 2558 ◽  
Author(s):  
Andrew Ristvey ◽  
Bruk Belayneh ◽  
John Lea-Cox

Water security in ornamental plant production systems is vital for maintaining profitability. Expensive, complicated, or potentially dangerous treatment systems, together with skilled labor, is often necessary to ensure water quality and plant health. Two contrasting commercial ornamental crop production systems in a mesic region are compared, providing insight into the various strategies employed using irrigation-water containment and treatment systems. The first is a greenhouse/outdoor container operation which grows annual ornamental plants throughout the year using irrigation booms, drip emitters, and/or ebb and flow systems depending on the crop, container size, and/or stage of growth. The operation contains and recycles 50–75% of applied water through a system of underground cisterns, using a recycling reservoir and a newly constructed 0.25 ha slow-sand filtration (SSF) unit. Groundwater provides additional water when needed. Water quantity is not a problem in this operation, but disease and water quality issues, including agrochemicals, are of potential concern. The second is a perennial-plant nursery which propagates cuttings and produces field-grown trees and containerized plants. It has a series of containment/recycling reservoirs that capture rainwater and irrigation return water, together with wells of limited output. Water quantity is a more important issue for this nursery, but poor water quality has had some negative economic effects. Irrigation return water is filtered and sanitized with chlorine gas before being applied to plants via overhead and micro-irrigation systems. The agrochemical paclobutrazol was monitored for one year in the first operation and plant pathogens were qualified and quantified over two seasons for both production systems. The two operations employ very different water treatment systems based on their access to water, growing methods, land topography, and capital investment. Each operation has experienced different water quantity and quality vulnerabilities, and has addressed these threats using a variety of technologies and management techniques to reduce their impacts.


2015 ◽  
Vol 65 (4) ◽  
pp. 539-554 ◽  
Author(s):  
Arne Arns ◽  
Thomas Wahl ◽  
Ivan D. Haigh ◽  
Jürgen Jensen

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