scholarly journals DEVELOPMENT OF TECHNOLOGY FOR HIGH EFFECTIVE CONTINUOUS TREATMENT OF SEWAGE FROM PROCESSING ENTERPRISES

Author(s):  
Ivan Sevostyanov ◽  
Oleksii Tokarchuk ◽  
Anatoly Horbachenko

The paper considers and proposes a concept of a technology scheme for highly effective mechanical wastewater treatment at processing enterprises of the agro-industrial complex, in order to ensure highly efficient continuous mechanical cleaning, with low energy consumption and equipment ergonomics. Various points of view on existing treatment technologies, segment problems, government regulations and requirements are considered. On the basis of them, conceptual schemes for the development of equipment are proposed and a technological scheme of the installation is proposed. The presented equipment layout diagrams provide an opportunity not only to clean the agro-industrial complex waste uninterruptedly and with high quality, but also make it possible to prepare the components to be removed for their further use or sale. The actual problem of the agro-industrial complex processing enterprises is high-quality, efficient and affordable wastewater treatment. The existing equipment is unable to meet the needs of small and medium-sized enterprises due to its high cost and impressive dimensions. In addition, this equipment does not provide high-quality wastewater treatment even to the level necessary for their further discharge into the sewer system. First of all, this is due to the obsolescence of existing methods and approaches, in particular in the technological aspect. The schematic diagrams described in the article, and the proposed technological scheme for waste management, have not yet been used at enterprises, since they require in-depth analysis and development of design solutions. On its basis, it will be possible to work out possible technical solutions for the further manufacture of equipment. That is why the question of the development of a modern ergonomic complex of high-tech equipment for highly efficient and continuous wastewater treatment has arisen. The solution to this problem is primarily possible to provide on the basis of an integrated approach to improving the cleaning technology.

2009 ◽  
Vol 4 (1) ◽  
Author(s):  
A.F. van Nieuwenhuijzen ◽  
M. Havekes ◽  
B.A. Reitsma ◽  
P. de Jong

This paper presents the new wastewater treatment plant Amsterdam West: a high-technology and sustainable wastewater treatment plant with a biological capacity of 1.0 million population equivalents. The design is based on the modified UCT process. Due to the limited space, deep activated sludge tanks (8.2 m) and secondary sedimentation tanks (side depth 3.45 m) are applied. The WWTP Amsterdam West was constructed within a period of app. 27 months and started-up in three months. The WWTP Amsterdam West operates well and produces a high-quality effluent, with yearly average concentrations of 6.7 mg Ntotal /l and 0.8 mg Ptotal/l. Biogas and sludge are combusted with high-rate energy retrieval at the nearby Waste and Energy Enterprise Amsterdam.


2020 ◽  
Vol 10 (1) ◽  
pp. 15-20
Author(s):  
Irina Orlova ◽  
Artem Sukharev ◽  
Maria Sukhareva ◽  
Mikhail Deikun

The main objective of the article is to substantiate a systematic approach to the introduction of all types of innovations in the development of the military-industrial complex of the Russian Federation. The relevance of the study is due to the fact that in the modern world it is especially important to ensure the national security of the country and the defense industry plays a crucial role in this. At the same time, one cannot but note the importance of the defense industry in the production of high-tech civilian products and dual-use products, which enhances the country's competitiveness in the world market. In addition, the relevance of the topic is due to the presence of rather serious problems in the Russian defense industry, which require immediate resolution. The article uses the methodology of structurally functional analysis, the institutional approach and the method of comparative assessments. The authors conclude that technological innovation alone will not be able to achieve strategic results for ensuring national security, only in conjunction with organizational, product, social and marketing innovations, the domestic defense industry is able to solve its tasks.


2019 ◽  
Vol 12 (3) ◽  
pp. 125-133
Author(s):  
S. V. Shchurina ◽  
A. S. Danilov

The subject of the research is the introduction of artificial intelligence as a technological innovation into the Russian economic development. The relevance of the problem is due to the fact that the Russian market of artificial intelligence is still in the infancy and the necessity to bridge the current technological gap between Russia and the leading economies of the world is coming to the forefront. The financial sector, the manufacturing industry and the retail trade are the drivers of the artificial intelligence development. However, company managers in Russia are not prepared for the practical application of expensive artificial intelligence technologies. Under these circumstances, the challenge is to develop measures to support high-tech projects of small and medium-sized businesses, given that the technological innovation considered can accelerate the development of the Russian economy in the energy sector fully or partially controlled by the government as well as in the military-industrial complex and the judicial system.The purposes of the research were to examine the current state of technological innovations in the field of artificial intelligence in the leading countries and Russia and develop proposals for improving the AI application in the Russian practices.The paper concludes that the artificial intelligence is a breakthrough technology with a great application potential. Active promotion of the artificial intelligence in companies significantly increases their efficiency, competitiveness, develops industry markets, stimulates introduction of new technologies, improves product quality and scales up manufacturing. In general, the artificial intelligence gives a new impetus to the development of Russia and facilitates its entry into the five largest world’s economies.


Author(s):  
Anatoliy V. Fedotov

Agricultural production in the Russian Federation is several times more energy-and material-intensive than in developed countries. (Research purpose) The research purpose is evaluation of the effectiveness of energy-saving technologies for technical maintenance of equipment using nanostructured aluminum oxyhydroxide and hydrothermal processing of agricultural waste in supercritical conditions. (Materials and methods) Nanostructured aluminum oxyhydroxide (boehmite) was produced by hydrothermal synthesis from aluminum powders. Tribological studies were carried out on a four-ball friction machine, a special device from WAGNER, on friction machines 2070 SMT-1M and MTU. Bench-in run was carried out on the D-240 engine and gearbox of a mobile drilling rig. The crushed solid waste of the agro-industrial complex was used as adsorbents for organic wastewater pollution. Their joint processing was carried out under hydrothermal supercritical conditions. (Results and discussion) It has been shown that nanostructure boehmite has antifriction, antiwear and extreme pressure properties. The possibility of its use as a product for running of a diesel engine has been found. The application of the boehmite in oils accelerates the running-in of a diesel engine, provides savings in material, labor and energy resources. For running-in of power transmission units, an additive containing bemite, surfactant, talc and kaolin reduced the running-in time of the drilling rig gearbox by 2.5 times. The article shows that the crushed plant waste of the agro-industrial complex, such as buckwheat husk, rice, and sunflower can be effectively used as adsorbents for the localization of pollution and wastewater treatment of agricultural enterprises. Subsequent processing of the adsorbent saturated with organic matter under hydrothermal supercritical conditions ensures the complete processing of organic substances to produce purified water and a high-enthalpy vapor-gas mixture or combustible gases, depending on the processing conditions. (Conclusions) Energy-saving technologies for the technical service of a diesel engine and transmission units can be based on the use of tribotechnical materials containing nanostructure boehmite. Technological solutions for energy-saving technologies for processing solid and liquid organic waste can consist in adsorption wastewater treatment followed by hydrothermal treatment in supercritical conditions.


Author(s):  
J.M. Bergthorson ◽  
L. Kunst ◽  
D.B. Levin ◽  
P.B.E. McVetty ◽  
D.L. Smith ◽  
...  

Energies ◽  
2021 ◽  
Vol 14 (8) ◽  
pp. 2282
Author(s):  
Sanjeet Mehariya ◽  
Rahul Kumar Goswami ◽  
Pradeep Verma ◽  
Roberto Lavecchia ◽  
Antonio Zuorro

The increasing world population generates huge amounts of wastewater as well as large energy demand. Additionally, fossil fuel’s combustion for energy production causes the emission of greenhouse gases (GHG) and other pollutants. Therefore, there is a strong need to find alternative green approaches for wastewater treatment and energy production. Microalgae biorefineries could represent an effective strategy to mitigate the above problems. Microalgae biorefineries are a sustainable alternative to conventional wastewater treatment processes, as they potentially allow wastewater to be treated at lower costs and with lower energy consumption. Furthermore, they provide an effective means to recover valuable compounds for biofuel production or other applications. This review focuses on the current scenario and future prospects of microalgae biorefineries aimed at combining wastewater treatment with biofuel production. First, the different microalgal cultivation systems are examined, and their main characteristics and limitations are discussed. Then, the technologies available for converting the biomass produced during wastewater treatment into biofuel are critically analyzed. Finally, current challenges and research directions for biofuel production and wastewater treatment through this approach are outlined.


Author(s):  
Martin Ehrhardt ◽  
Pierre Lorenz ◽  
Jens Bauer ◽  
Robert Heinke ◽  
Mohammad Afaque Hossain ◽  
...  

AbstractHigh-quality, ultra-precise processing of surfaces is of high importance for high-tech industry and requires a good depth control of processing, a low roughness of the machined surface and as little as possible surface and subsurface damage but cannot be realized by laser ablation processes. Contrary, electron/ion beam, plasma processes and dry etching are utilized in microelectronics, optics and photonics. Here, we have demonstrated a laser-induced plasma (LIP) etching of single crystalline germanium by an optically pumped reactive plasma, resulting in high quality etching. A Ti:Sapphire laser (λ = 775 nm, EPulse/max. = 1 mJ, t = 150 fs, frep. = 1 kHz) has been used, after focusing with a 60 mm lens, for igniting a temporary plasma in a CF4/O2 gas at near atmospheric pressure. Typical etching rate of approximately ~ 100 nm / min and a surface roughness of less than 11 nm rms were found. The etching results were studied in dependence on laser pulse energy, etching time, and plasma – surface distance. The mechanism of the etching process is expected to be of chemical nature by the formation of volatile products from the chemical reaction of laser plasma activated species with the germanium surface. This proposed laser etching process can provide new processing capabilities of materials for ultra—high precision laser machining of semiconducting materials as can applied for infrared optics machining.


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