Environmental Attributes of EDM Process

2013 ◽  
Vol 371 ◽  
pp. 235-239
Author(s):  
Dumitru Soaita
Keyword(s):  
Environmental Impact ◽  
Experimental Research ◽  
Clean Technology ◽  
Machine Construction ◽  
Environmental Attributes ◽  
Best Available Technology ◽  
Available Technology ◽  
Best Available Technology Bat ◽  
Edm Process

EDM is presently known as the best available technology (BAT) to solve various problems in machine construction. This paper attempts to provide some answers to the question - is EDM a clean technology? Working methodology consisted in processing literature data and data obtained from authors experimental research on the environmental impact of EDM. In conclusion, there are several issues to be solved before EDM can be considered a clean technology. The article also suggests solutions for these problems.

On the Necessity for Minimizing Risk Based Technology Qualification Variability: An Application to Offshore Floating Wind Turbines

2020 ◽  
Author(s):  
S. M. Samindi M. K. Samarakoon ◽  
R. M. Chandima Ratnayake
Keyword(s):  
Wind Turbines ◽  
Fuzzy Inference System ◽  
Fuzzy Inference ◽  
New Technology ◽  
Risk Matrix ◽  
Inference System ◽  
Mode Identification ◽  
Best Available Technology ◽  
Available Technology ◽  
Best Available Technology Bat

Abstract Technology qualification (TQ) has been employed to perform assessments to verify whether a new technology performs within pre-specified functional limits after an application. If a best available technology (BAT) is used in a new environment, it is considered as a new technology. The TQ is vital in the implementation of best available technology (BAT) in a new environment. Risk based technology qualification provides an optimal approach for performing TQ of a BAT when it is necessary to implement in a new environment. This manuscript first demonstrates the standard TQ process. Secondly, it presents development of a risk matrix for failure mode identification and consequence risk ranking (FMI&CRR). Thirdly, it demonstrates the use of FMI&CRR in a risk-based technology qualification process. Finally, it presents use of the risk matrix to perform TQ on moorings solutions that have been selected as a BAT for a floating wind turbine sub-system. Fuzzy inference system has been used to assess the risk rank to minimize the variability that causes due to experts’ performance variability. Illustrative risk based TQ assessment has been performed and presented. The developed risk based TQ process (TQP), fuzzy inference system supported risk rank estimation, and illustrative risk based TQ recommendation are significantly important for practitioners while performing FMI&CRR in larger scale offshore floating wind turbines’ TQ projects.

scholarly journals The energy required to produce materials: constraints on energy-intensity improvements, parameters of demand

2013 ◽  
Vol 371 (1986) ◽  
pp. 20120003 ◽  
Author(s):  
Timothy G. Gutowski ◽  
Sahil Sahni ◽  
Julian M. Allwood ◽  
Michael F. Ashby ◽  
Ernst Worrell
Keyword(s):  
Energy Intensity ◽  
Construction Materials ◽  
Global Scale ◽  
Widespread Application ◽  
Material Production ◽  
Material Efficiency ◽  
Best Available Technology ◽  
Available Technology ◽  
Best Available Technology Bat ◽  
Practical Constraints

In this paper, we review the energy requirements to make materials on a global scale by focusing on the five construction materials that dominate energy used in material production: steel, cement, paper, plastics and aluminium. We then estimate the possibility of reducing absolute material production energy by half, while doubling production from the present to 2050. The goal therefore is a 75 per cent reduction in energy intensity. Four technology-based strategies are investigated, regardless of cost: (i) widespread application of best available technology (BAT), (ii) BAT to cutting-edge technologies, (iii) aggressive recycling and finally, and (iv) significant improvements in recycling technologies. Taken together, these aggressive strategies could produce impressive gains, of the order of a 50–56 per cent reduction in energy intensity, but this is still short of our goal of a 75 per cent reduction. Ultimately, we face fundamental thermodynamic as well as practical constraints on our ability to improve the energy intensity of material production. A strategy to reduce demand by providing material services with less material (called ‘material efficiency’) is outlined as an approach to solving this dilemma.

scholarly journals Nuovi approcci per lo studio delle migliori tecnologie disponibili a supporto dell'autorizzazione integrata ambientale per impianti di produzione di biometano 

2021 ◽  
Author(s):  
Noemi Cennamo
Keyword(s):  
Prevention And Control ◽  
Pollution Prevention ◽  
Pollution Prevention And Control ◽  
Best Available Technology ◽  
Available Technology ◽  
Best Available Technology Bat ◽  
And Control

L’Autorizzazione Integrata Ambientale (AIA) è il provvedimento che autorizza l’esercizio di un impianto o parte di esso, in cui si svolgono attività che potrebbero causare significativi impatti ambientali. Con l’AIA le imprese possono uniformarsi ai principi di IPPC che sta per Integrated Pollution Prevention and Control, individuando soluzioni tecniche, impiantistiche ed economiche, per una corretta gestione delle possibili forme di inquinamento. Per raggiungere elevati livelli di protezione dell’ambiente bisogna adottare le Migliori Tecniche Disponibili, in inglese Best Available Technology (BAT). Ad oggi in Italia non è ancora presente un metodo di studio delle migliori tecnologie disponibili, ma una diversa situazione si ha nel Regno Unito dove viene il software H1. Lo scopo del presente lavoro è individuare una metodologia di studio delle BAT per un impianto di trattamento della Frazione Organica dei Rifiuti Solidi Urbani (FORSU) e scarti ligneo-cellulosici per la produzione di biometano situato in Italia, applicando per lo stesso il software inglese.

scholarly journals Problems of implementation of best available technologiesat industrial plants

2019 ◽  
Vol 75 (3) ◽  
pp. 373-378
Author(s):  
N. S. Tsarev ◽  
V. I. Aksenov
Keyword(s):  
Steel Industry ◽  
Negative Impact ◽  
Environment Protection ◽  
Federal Law ◽  
Industrial Plants ◽  
Best Available Technologies ◽  
Best Available Technology ◽  
Available Technology ◽  
Technological Indices ◽  
Best Available Technology Bat

After the changes to the Federal law “On environment protection” came into force, the plants having considerable negative impact on environment, including plants of steel industry and non-ferrous metallurgy, from January 1, 2019 have to proceed to implementation of best available technologies. Among the problems, the information and analytical provision of such technologies implementation noticed. Formulation of “complex ecological permission” and “best available technology” (“BAT”) meanings considered. Items of registration considered, including order and terms, specified for BAT receiving, which substitutes the permission for emission of contaminants intoatmosphere, limits for contaminants emission, permission for contaminants discharge into environment, limits for contaminants discharge, norms for wastes formation and limits for their allocation. A list of supporting actions at implementation of measures on environment protection quoted, including state support ofactivity on BAT implementation and other measures decreasing negative impact on environment. Bureau of BAT elaborated information and technical reference books on BATs, which are available at internet-site http://burondt.ru/index/its-ndt.html. For steel industry and related industries list of the reference books on BATs recommended for familiarization. A reference to an electron resource, containing “List of main technological equipment, used at implementation of best available technologies” quoted. The document approved by the RF Government’ decree. Problems considered, related to BAT implementation, including absence of approved technological indices of BAT and incompleteness of list of equipment recommended for implementation.

Treatment of High-Strength, Complex and Toxic Chemical Wastewater: End-of Pipe “Best Available Technology” vs. an In-Plant Control Program

1994 ◽  
Vol 29 (8) ◽  
pp. 221-233
Author(s):  
Shimshon Belkin ◽  
Asher Brenner ◽  
Alon Lebel ◽  
Aharon Abeliovich
Keyword(s):  
Activated Carbon ◽  
Control Program ◽  
High Strength ◽  
Activated Carbon Adsorption ◽  
Acceptable Solution ◽  
Conventional Activated Sludge ◽  
Carbon Adsorption ◽  
Individual Source ◽  
Best Available Technology ◽  
Available Technology

A case study is presented, in which two approaches to the treatment of complex chemical wastewater are experimentally compared: an end-of-pipe “best available technology” option and an in-plant source segregation program. Both options proved to be feasible. Application of the powdered activated carbon treatment (PACT™) process for the combined end-of-pipe stream yielded up to 93% reduction of dissolved organic carbon, with complete toxicity elimination. In order to examine the potential for applying a conventional activated sludge process, a simplified laboratory screening procedure was devised, aimed at establishing baseline data of removability potential, defined either by biodegradation, activated carbon adsorption or volatilization. Using this procedure, the major source of the non-biodegradable fraction in the combined park's wastewater was traced to a single factory, from which twelve individual source streams were screened. The results allowed the division of the tested sources into three groups: degradable, volatile, and problematic. A modified wastewater segregation and treatment program was accordingly proposed, which should allow an efficient and environmentally acceptable solution. This program is presently at its final testing stages, at the conclusion of which a full comparison between the two approaches will be carried out.

Upgrading effluent quality for lagoon-based systems

1995 ◽  
Vol 31 (12) ◽  
pp. 379-387 ◽  
Author(s):  
Henryk Melcer ◽  
Brian Evans ◽  
Stephen G. Nutt ◽  
Anthony Ho
Keyword(s):  
Urban Communities ◽  
Ammonia Concentration ◽  
Sand Filters ◽  
Plant Operation ◽  
Capital Costs ◽  
Effluent Quality ◽  
Waste Sludge ◽  
Best Available Technology ◽  
Available Technology ◽  
Aeration Plant

To establish Best Available Technology Economically Achievable (BATEA) in non-urban communities which presently use conventional lagoon technology, an investigation was undertaken to evaluate alternatives which can be used to improve lagoon effluent and establish costs. Evaluated were the “Sutton” and the intermittent sand filtration or “New Hamburg” processes. The Sutton concept consists of a nitrifying extended-aeration plant followed by polishing lagoons, with waste sludge discharged into the lagoons. The New Hamburg concept consists of aerated or facultative lagoons, with the lagoon effluent sprayed intermittently over sand filters. The Sutton plants produce an improved effluent quality relative to conventional facultative lagoons in terms of BOD5 and TSS concentrations. Increases in ammonia concentration across the polishing pond occur after 5-7 years of plant operation, suggesting a need to implement a regular program of sludge removal from the lagoon. The New Hamburg process results in a significant improvement in effluent quality in terms of BOD5, TSS, TP, TKN, NH3-N and H2S concentrations. Approximate capital costs for upgrading the existing conventional lagoons in Ontario to Sutton and New Hamburg process facilities are estimated at US $221 million and US $93 million, respectively.

Sign in / Sign up

Export Citation Format

Share Document