scholarly journals Реагентная очистка различных видов сточных вод трехкомпонентной композицией

2021 ◽  
Vol 46 (1) ◽  
Author(s):  
Keyword(s):  
Food Production ◽  
Experimental Studies ◽  
Component Composition ◽  
Conflicts Of Interests ◽  
Reagent Treatment ◽  
Suspended Substances ◽  
Project Engineer ◽  
Far Eastern ◽  
Separate Injection ◽  
Soda Ash

Представлены результаты экспериментальных исследований реагентной очистки сточных вод трехкомпонентной композицией (коагулянт, флокулянт, щелочной реагент), которые проводились в ООО «ДальВОДГЕО». Экспериментально подобрано соотношение реагентов в композиции, причем флокулянт растворяется в кальцинированной соде и вводится после коагулянта. Испытания на стоках от пищевых производств (с высоким содержанием органических и минеральных взвешенных веществ) при недостаточном щелочном резерве подтверждают большую эффективность очистки и меньший объем осадка в случае применения композиции по сравнению с раздельным вводом реагентов. Ключевые слова: сточные воды, интенсификация реагентной очистки, коагулят, флокулянт, подщелачивающий реагент, коагулирующая-флоккулирующая щелочная композиция The results of experimental studies of reagent wastewater treatment with a three-component composition (coagulant, flocculant, alkaline reagent), which were carried out at DalVODGEO LLC (from 2015 to 2018, when one of the authors, S.B. Kundenok, worked as a chief project engineer in this organizations), then jointly with the Far Eastern Federal University (2017–2020). The ratio of reagents in the composition was experimentally selected, and the flocculant is dissolved in soda ash and introduced after the coagulant. Tests on effluents from food production (with a high content of organic and mineral suspended substances), with an insufficient alkaline reserve, confirm the greater efficiency of purification and a smaller volume of sediment in the case of using the composition in comparison, with the separate injection of reagents. Keywords: waste water, intensification of reagent treatment, coagulum, flocculant, alkalizing reagent, coagulating-flocculating alkaline composition Contribution of the authors: the authors contributed equally to this article. The authors declare no conflicts of interests.

scholarly journals AI-Enabled Efficient and Safe Food Supply Chain

Electronics ◽  
2021 ◽  
Vol 10 (11) ◽  
pp. 1223
Author(s):  
Ilianna Kollia ◽  
Jack Stevenson ◽  
Stefanos Kollias
Keyword(s):  
Supply Chain ◽  
Food Supply ◽  
Latent Variable ◽  
Food Production ◽  
Domain Adaptation ◽  
Experimental Studies ◽  
Food Supply Chain ◽  
Food Retail ◽  
Expiry Date ◽  
Safe Food

This paper provides a review of an emerging field in the food processing sector, referring to efficient and safe food supply chains, ’from farm to fork’, as enabled by Artificial Intelligence (AI). The field is of great significance from economic, food safety and public health points of views. The paper focuses on effective food production, food maintenance energy management and food retail packaging labeling control, using recent advances in machine learning. Appropriate deep neural architectures are adopted and used for this purpose, including Fully Convolutional Networks, Long Short-Term Memories and Recurrent Neural Networks, Auto-Encoders and Attention mechanisms, Latent Variable extraction and clustering, as well as Domain Adaptation. Three experimental studies are presented, illustrating the ability of these AI methodologies to produce state-of-the-art performance in the whole food supply chain. In particular, these concern: (i) predicting plant growth and tomato yield in greenhouses, thus matching food production to market needs and reducing food waste or food unavailability; (ii) optimizing energy consumption across large networks of food retail refrigeration systems, through optimal selection of systems that can be shut-down and through prediction of the respective food de-freezing times, during peaks of power demand load; (iii) optical recognition and verification of food consumption expiry date in automatic inspection of retail packaged food, thus ensuring safety of food and people’s health.

scholarly journals Phylogenetic relationships among different morphotypes of StY-genomic species Elymus ciliaris and E. amurensis (Poaceae) as a unified macroevolutional complex

2021 ◽  
Author(s):  
Alexander V. Agafonov ◽  
◽  
Elena V. Shabanova ◽  
Maria V. Emtseva ◽  
Sergei V. Asbaganov ◽  
...  
Keyword(s):  
Early Treatment ◽  
Morphological Traits ◽  
Nuclear Gene ◽  
Experimental Methods ◽  
Component Composition ◽  
Issr Markers ◽  
Neighbor Joining ◽  
Genomic Species ◽  
Protein Spectra ◽  
Far Eastern

Microevolutionary relationships between the Far Eastern StY-genomic species Elymus ciliaris and E. amurensis were studied using a set of experimental methods. No relationship was found between the formal species affiliation of a particular accession and the component composition of protein spectra. The consensus neighbor-joining (NJ) dendrogram based on the variability of ISSR markers showed the features of differentiation among different morphotypes of the two species. Pubescence of leaf blades is not a marker of differences between the studied species. A level of crossability in E. ciliaris s. l. did not allow to study the inheritance of morphological traits. According to the results of sequencing of the nuclear gene GBSS1, the sequences of the St subgenome are the most informative in terms of microevolutionary differentiation. It is proposed to return to the early treatment by N.N. Tsvelev, where E. ciliaris and E. amurensis were considered as subspecies of E. ciliaris s. l.

scholarly journals Major Patterns in the Neolithic Chronology of East Asia: Issues of the Origin of Pottery, Agriculture, and Civilization

Radiocarbon ◽  
2009 ◽  
Vol 51 (3) ◽  
pp. 891-903 ◽  
Author(s):  
Yaroslav V Kuzmin ◽  
J A Timothy Jull ◽  
G S Burr
Keyword(s):  
East Asia ◽  
Food Production ◽  
North China ◽  
State Level ◽  
Written Language ◽  
Far Eastern Russia ◽  
Neolithic Agriculture ◽  
Terminal Pleistocene ◽  
Far Eastern ◽  
Different Parts

General chronological frameworks created recently for the Neolithic complexes of China, Japan, Korea, and far eastern Russia allow us to reveal temporal patterns of Neolithization, origin of food production, and the emergence of civilizations. Pottery originated in East Asia, most probably independently in different parts of it, in the terminal Pleistocene, about 14,800–13,300 BP (uncalibrated), and this marks the beginning of the Neolithic. Agriculture in the eastern part of Asia emerged only in the Holocene. The earliest trace of millet cultivation in north China can now be placed at ∼9200 BP, and rice domestication in south China is dated to ∼8000 BP. Pottery in East Asia definitely preceded agriculture. The term “civilization,” which implies the presence of a state level of social organization and written language, has been misused by scholars who assert the existence of a very early “Yangtze River civilization” at about 6400–4200 cal BP. The earliest reliable evidence of writing in China is dated only to about 3900–3000 cal BP, and no “civilization” existed in East Asia prior to this time.

scholarly journals Research into special technological effects for formation of wear resistant coatings using mineral raw materials of the far eastern region

2018 ◽  
Vol 56 ◽  
pp. 03027
Author(s):  
Viktor Makienko ◽  
Igor Romanov ◽  
Pavel Sokolov ◽  
Alexander Atenyaev ◽  
Dmitry Pervakov
Keyword(s):  
Mechanical Properties ◽  
Raw Materials ◽  
Experimental Studies ◽  
Eastern Region ◽  
Mineral Raw Materials ◽  
Wear Resistant Coatings ◽  
Thermal Fields ◽  
Additional Influence ◽  
Far Eastern

The results of the study of the possibility of using additional technological influence in the formation of doped coatings are presented. The distribution of thermal fields has been calculated, which makes it possible to estimate and predict the influence of additional influence on the formation of the coating in a simplified manner. Experimental studies have shown that additional technological influence promotes mixing of the melt, leading to an increase in the transition of alloying elements, as well as an increase in the mechanical properties and quality of the weld metal.

scholarly journals The production technology of functional yoghurt, enriched with a mixture of dry wheat germ powder and bilberries and blueberries puree

2019 ◽  
Vol 80 (4) ◽  
pp. 283-287
Author(s):  
R. V. Ginoyan ◽  
N. E. Nazarova ◽  
Yu. N. Bondareva
Keyword(s):  
Dairy Products ◽  
Technology Development ◽  
Raw Materials ◽  
Effective Means ◽  
Experimental Studies ◽  
Chemical Properties ◽  
Component Composition ◽  
Starter Cultures ◽  
Organoleptic Characteristics ◽  
Different Doses

The use of dairy products and beverages containing substances useful for health is an effective means of strengthening the protective functions of the human body. The development of new products should be based on a reasonable selection of ingredients that form their composition and properties. One of the most relevant areas in the technology development of functional dairy products, including yogurt, is the identification and use of promising types of traditional plant crops and wild fruit and berry raw materials. The purpose of this work is to study the effect of different doses of a mixture of dry powder suspension of sprouted wheat, and mashed bilberries and blueberries on organoleptic characteristics, individual physical and chemical properties and safety of yogurt. The work is done in of the "Nizhny Novgorod State Agricultural Academy". While the research, a set of generally accepted standard research methods was used. Objects of research are samples of yogurt thermostatic with different doses of the components: 1.0; 1.5; 2.0; 2.5% of suspension of powder of sprouted wheat and 5.0; 7.0; 9.0; 11.0; 13.0% mashed bilberries and blueberries (1.5: 1.0). The fermentation was performed using dry starter cultures YO-MIX 495 LYO 100 DCU, Danisco Cultures. According to the results of a study designed and optimized component composition of yoghurt, selected dose, the stage and method of making milk of a mixture of additives, experimental studies on adjustment and sequence of technological modes of production of a particular group of samples of yoghurt. Optimal application dose of suspension of sprouted wheat powder in milk mixture amounted to 1.5%, puree of bilberries and blueberries(1.5:1.0) of 7.0%. In the obtained enriched sample the content of carbohydrates increases to 5.40–5.45%, the content of vitamin C-to 3.65-3.75 mg/%. Yogurt meets the requirements established CU TR 021/2011, CU TR 033/2013 and GOST 31981.

Substantiation оf Parameters оf Biosorption Extraction оf Indium from Electronic Waste

2021 ◽  
Vol 25 (9) ◽  
pp. 24-29
Author(s):  
A.A. Chugainova ◽  
L.V. Rudakova
Keyword(s):  
Mobile Phone ◽  
Mobile Phones ◽  
Electronic Waste ◽  
Experimental Studies ◽  
Component Composition ◽  
Waste Generation ◽  
Limited Distribution ◽  
Research Results ◽  
Laboratory Conditions ◽  
Modern Methods

The data on the dynamics of e-waste generation in different countries are presented and modern methods of handling this type of waste are analyzed. The characteristics of the component composition of electronic waste are given. The problem of neutralization and disposal of mobile phone screens has been studied. An analysis of possible methods for extracting metals from electronic waste has been carried out, which has shown the promise of a biotechnological method based on the ability of the biomass of microscopic algae to selectively, under certain conditions, sorbs metals. Based on the analysis of the research results of domestic and foreign scientists presented in the literature the process of extracting indium from the screens of mobile phones using microscopic algae was simulated under laboratory conditions. When justifying the choice of indium as an extractable metal, two criteria were used: limited distribution in the earth's crust and the difficulty of obtaining from natural ores, as well as demand in various industries. In experimental studies, the parameters of the effective extraction of indium by the biosorption method have been determined.

Improvement of Efficiency of Waste Water Treatment from Metals Using Flotation Combines

2020 ◽  
Vol 24 (10) ◽  
pp. 4-7
Author(s):  
B.S. Ksenofontov ◽  
A.S. Kozodayev ◽  
R.A. Taranov ◽  
M.S. Vinogradov
Keyword(s):  
Waste Water ◽  
Heavy Metals ◽  
Water Treatment ◽  
Waste Water Treatment ◽  
Local Treatment ◽  
Experimental Studies ◽  
Treatment Unit ◽  
Reagent Treatment ◽  
Treatment Facilities ◽  
Technical Solutions

The work deals with the use of flotation combines for the treatment of waste water from heavy metals. The analysis of various methods of treatment of waste water from heavy metals was carried out, which revealed the most promising technical solutions with their possible implementation for modernization of existing treatment facilities of the enterprise. Experimental studies of several versions of technological schemes were carried out on the basis of which a technological scheme of waste water treatment was selected, including all positions of equipment existing at local treatment facilities, and supplemented with a reagent treatment unit, treatment in a flotation complex using reagents, application of filters and pH correction.

Use as an Iron (III) Sulfate Coagulant in Water Treatment in the Pulp and Paper Industry

2019 ◽  
Vol 23 (2) ◽  
pp. 30-35
Author(s):  
T.E. Boykova ◽  
N.I. Bogdanovich ◽  
K.B. Vorontsov ◽  
T.S. Mauricheva ◽  
S.N. Dolgoborodova ◽  
...  
Keyword(s):  
Water Treatment ◽  
Natural Water ◽  
Ferric Iron ◽  
Paper Industry ◽  
Experimental Studies ◽  
Pulp And Paper Industry ◽  
Pulp And Paper ◽  
Treated Water ◽  
Duration Time ◽  
Suspended Substances

The study of the effectiveness of the use of iron (III) sulfate (Ferix-3) in the treatment of natural water. Experimental studies of the effectiveness of this reagent in various conditions: the dosage of coagulant, alkalization of water, the dose and grade of flocculant, the temperature of the treated water. Optimal results were obtained with a dosage of coagulant of 30–70 mg/l, the parameters of water meet the requirements. The content of suspended substances in the supernatant layer does not exceed 30 mg/l with a duration time of clarification of 30 minutes or more. The practicality of coagulation treatment with the use of modern reagent based on ferix-3 ferric iron has been substantiated.

scholarly journals AI-enabled Efficient and Safe Food Supply Chain

2021 ◽  
Author(s):  
Ilianna Kollia ◽  
Jack Stevenson ◽  
Stefanos Kollias
Keyword(s):  
Supply Chain ◽  
Food Supply ◽  
Latent Variable ◽  
Food Production ◽  
Domain Adaptation ◽  
Experimental Studies ◽  
Food Supply Chain ◽  
Expiry Date ◽  
Tomato Yield ◽  
Safe Food

This paper provides a review of an emerging field in the food processing sector, referring to efficient and safe food supply chains, ’from farm to fork’, as enabled by Artificial Intelligence (AI). Recent advances in machine and deep learning are used for effective food production, energy management and food labeling. Appropriate deep neural architectures are adopted and used for this purpose, including Fully Convolutional Networks, Long Short-Term Memories and Recurrent Neural Networks, Auto-Encoders and Attention mechanisms, Latent Variable extraction and clustering, as well as Domain Adaptation. Three experimental studies are presented, illustrating the ability of these AI methodologies to produce state-of-the-art performance in the whole food supply chain. In particular, these concern: (i) predicting plant growth and tomato yield in greenhouses, thus matching food production to market needs and reducing food waste or food unavailability; (ii) optimizing energy consumption across large networks of food retail refrigeration systems, through optimal selection of systems that can get shut-down and through prediction of the respective food de-freezing times, during peaks of power demand load; (iii) optical recognition and verification of food consumption expiry date in automatic inspection of retail packaged food, thus ensuring safety of food and people’s health.

scholarly journals Collisions of Liquid Droplets in a Gaseous Medium under Conditions of Intense Phase Transformations: Review

Energies ◽  
2021 ◽  
Vol 14 (19) ◽  
pp. 6150
Author(s):  
Svetlana Kropotova ◽  
Pavel Strizhak
Keyword(s):  
Gaseous Medium ◽  
Experimental Studies ◽  
Fold Increase ◽  
Component Composition ◽  
Variable Component ◽  
Liquid Droplets ◽  
Multicomponent Gas ◽  
Gaseous Media ◽  
Research Findings ◽  
Density Surface

The article presents the results of theoretical and experimental studies of coalescence, disruption, and fragmentation of liquid droplets in multiphase and multicomponent gas-vapor-droplet media. Highly promising approaches are considered to studying the interaction of liquid droplets in gaseous media with different compositions and parameters. A comparative analysis of promising technologies is carried out for the primary and secondary atomization of liquid droplets using schemes of their collision with each other. The influence of a range of factors and parameters on the collision processes of drops is analyzed, in particular, viscosity, density, surface, and interfacial tension of a liquid, trajectories of droplets in a gaseous medium, droplet velocities and sizes. The processes involved in the interaction of dissimilar droplets with a variable component composition and temperature are described. Fundamental differences are shown in the number and size of droplets formed due to binary collisions and collisions between droplets and particles at different Weber numbers. The conditions are analyzed for the several-fold increase in the number of droplets in the air flow due to their collisions in the disruption mode. A technique is described for generalizing and presenting the research findings on the interaction of drops in the form of theoretical collision regime maps using various approaches.

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