The work of the central plant laboratory and experimental plant of the Kirovakan fibre plant

The maintenance of furnaces is one of the most important problems for by-product coke production. Swelling pressure is one of the least studied factors affecting the lining of coke furnace walls. The results of studies of the swelling pressure of PJSC “Koks” feedstock coal are presented in this paper. Research has been carried out to identify the dependence of the swelling pressure on the coal quality indicators, estimated during the incoming control of the central plant laboratory of PJSC “Koks”. The plastic properties of PJSC “Koks” feedstock coals were studied using Gieseler plastometer. The relationship between the swelling pressure and the maximum coal fluidity is revealed.

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Development of the design method for the optimal design of the Neutron Converter experimental plant

CPT2020 The 8th International Scientific Conference on Computing in Physics and Technology Proceedings ◽

10.30987/conferencearticle_5fce2773381190.97192388 ◽

2020 ◽

Author(s):

Timur Smetani ◽

Elizaveta Gureva ◽

Vyacheslav Andreev ◽

Natalya Tarasova ◽

Nikolai Andree

Keyword(s):

Optimal Design ◽

Flux Density ◽

Design Process ◽

Design Method ◽

Fast Neutrons ◽

Experimental Plant ◽

Plant Design ◽

State Technical ◽

Research Organizations ◽

Neutron Converter

The article discusses methods for optimizing the design of the Neutron Converter research plant design with parameters that are most suitable for a particular consumer. 38 similar plant structures with different materials and sources were calculated, on the basis of which the most optimal options were found. As part of the interaction between OKBM Afrikantov JSC and the Nizhny Novgorod State Technical University named after R. E. Alekseev, the Neutron Converter research plant was designed and assembled. The universal neutron converter is a device for converting a stream of fast neutrons emitted by isotopic sources into a "standardized" value of flux density with known parameters in the volume of the central part of the product, which is the working part of the universal neutron converter. To supply neutron converters to other customer organizations (universities, research organizations and collective centers), it is necessary to take into account the experience of operating an existing facility, as well as rationalize the design process of each specific instance in accordance with the requirements of the customer.

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Pre-Industrial Experience in Solar Photocatalytic Mineralization of Real Wastewaters. Application to Pesticide Container Recycling

Water Science & Technology ◽

10.2166/wst.1999.0583 ◽

1999 ◽

Vol 40 (4-5) ◽

pp. 123-130 ◽

Cited By ~ 2

Author(s):

S. Malato ◽

J. Blanco ◽

C. Richter ◽

B. Milow ◽

M. I. Maldonado

Keyword(s):

Organic Contaminants ◽

Toxic Waste ◽

Experimental Plant ◽

Electron Hole ◽

Particulate Suspensions ◽

Photocatalytic System ◽

Commercial Pesticide ◽

Pesticide Container ◽

By Products ◽

Hole Recombination

Particulate suspensions of TiO2 irradiated with natural solar tight in a large experimental plant catalyse the oxidation of organic contaminants. The problem in using TiO2 as a photocatalyst is electron/hole recombination. One strategy for inhibiting e−/h+ recombination is to add other (irreversible) electron acceptors to the reaction. In many highly toxic waste waters where degradation of organic pollutants is the major concern, the addition of an inorganic anion to enhance the organic degradation rate may be justified. For better results, these additives should fulfil the following criteria: dissociate into harmless by-products and lead to the formation of ·OH or other oxidising agents. In this paper, we attempt to demonstrate the optimum conditions for the treatment of commercial pesticide rinsates found in the wastewater produced by a pesticide container recycling plant. The experiments were performed in one of the pilot plants of the largest solar photocatalytic system in Europe, the Detoxification Plants of the Plataforma Solar de Almería (PSA), in Spain. After testing ten different commercial pesticides, results show that peroxydisulphate enhances the photocatalytic miniralization of all of them. This study is part of an extensive project focused on the design of a solar photocatalytic plant for decontamination of agricultural rinsates in Almería (Spain).

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Learning from examples of manual control of a central plant refrigerated cabinet

International Conference on Control '94 ◽

10.1049/cp:19940119 ◽

1994 ◽

Author(s):

T.C. Fogarty

Keyword(s):

Learning From Examples ◽

Manual Control ◽

Central Plant

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Evaluation of Bed Depth Reduction, Media Change, and Partial Saturation as Combined Strategies to Modify in Vertical Treatment Wetlands

International Journal of Environmental Research and Public Health ◽

10.3390/ijerph18094842 ◽

2021 ◽

Vol 18 (9) ◽

pp. 4842

Author(s):

Ismael Vera-Puerto ◽

Hugo Valdés ◽

Christian Correa ◽

Valeria Perez ◽

Roberto Gomez ◽

...

Keyword(s):

Natural Zeolite ◽

Domestic Wastewater ◽

Bottom Layer ◽

Treatment Wetlands ◽

Positive Development ◽

Experimental Plant ◽

Partial Saturation ◽

Treatment Wetland ◽

Media Change ◽

Depth Reduction

The aim of this work was to evaluate the performance of vertical subsurface flow treatment wetlands (VSSF TWs) for treating rural domestic wastewater when strategies such as bed depth reduction and media change are used in combination with bottom saturation. Two treatment wetland systems were implemented: normal (VF-N), with a bed depth of 1.0 m, and modified (VF-M), with a bed depth of 0.5 m and a bottom layer of natural zeolite. Schoenoplectus californicus was used as experimental plant. These two treatment systems were operated at a hydraulic loading rate of 120 mm/d in two phases. Phase I did not use bottom saturation, while Phase II involved a bottom saturation of the zeolite layer of the VF-M system. The results show that bed depth reduction did not have a significant effect (p > 0.05) in terms of organic matter, solids, and ammonium removal. Conversely, it had a significant influence (p < 0.05) on phosphate as well as a negative effect on pathogen removal. This influence could be explained by initial media capacity for phosphorus removal and filtration importance in the case of pathogens. Partial saturation only had a positive influence on total nitrogen removal. The addition of a bottom layer of natural zeolite showed no positive effect on nutrient removal. The plant showed adaptation and positive development in both VF-N and VF-M. The water balance showed that water loss was not influenced by bed depth reduction. Therefore, according to the previous results, a combination of the proposal modifications to VSSF TWs can be introduced for treating rural domestic wastewater.

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