Research on Dedusting Technology in the Concrete Mixing Station Powder Silo

2014 ◽  
Vol 1055 ◽  
pp. 59-62
Author(s):  
Peng Zhang ◽  
Xing Yu Guo ◽  
Zhi Guang Guan
Keyword(s):  
Environmental Cost ◽  
Environmental Standards ◽  
Dust Emissions ◽  
Environmental Requirements ◽  
National Environmental ◽  
Concrete Mixing Station

The dust emissions from the concrete mixing station has seriously affected the lives of the residents and the workers' health, and it is difficult to achieve national environmental standards. Dedusting and its high environmental cost are currently facing important problem for the concrete mixing station. A spray and whirlwind composite dedusting technology and equipment are put forward by this paper, and applied to the actual concrete mixing station. After application, it can be seen that the spray and whirlwind composite dedusting technology play the effect of dust and match the environmental requirements.

Global E-Waste Management and Second-Hand Consumption in the Third World: Substandard Context and Tokunbo Phenomenon in Nigeria

2012 ◽  
Vol 10 (1) ◽  
Author(s):  
Ayokunle Olumuyiwa Omobowale
Keyword(s):  
Third World ◽  
New Products ◽  
Developed Countries ◽  
Environmental Standards ◽  
The West ◽  
Environmental Threats ◽  
The Public ◽  
Standards And Regulations ◽  
The Third World ◽  
National Environmental

The world is technologically advancing, but the management of resultant waste, commonly known as e-waste, is also becoming very challenging. Of major concern is the incessant flow of this waste into the developing world where they assume secondhand value in spite of the associated environmental threats. This study adopts the qualitative approach to examine this phenomenon in Nigeria. The study reveals that aside from being cheaper than the new products, second-hand goods are usually preferred to the new products due to the substandard nature of most new electronics largely imported from Asia (especially China). The tag of Tokunbo or ‘imported from the West’ associated with second-hand goods imported from developed countries makes them more preferable to the public relative to new electronics imported from China, disparagingly termed Chinco. Yet both the second-hand electronics that are socially appreciated as Tokunbo and the substandard new electronics imported into Nigeria together render the country a huge recipient of goods that soon collapse and swell the e-waste heap in the country. This situation may be mitigated through strengthening the Standards Organisation of Nigeria and the National Environmental Standards and Regulations Enforcement Agency, and also by sensitizing Nigerians on the dangers inherent in e-wastes.

CETREL's environmental management system (BS-7750): an advanced and innovative project

1996 ◽  
Vol 33 (3) ◽  
pp. 223-237
Author(s):  
F. A. Pereira ◽  
A. B. Kauss
Keyword(s):  
Environmental Management ◽  
Environmental Effects ◽  
Management System ◽  
Industrial Effluents ◽  
Education Programme ◽  
Environmental Management System ◽  
Environmental Standards ◽  
Environmental Legislation ◽  
Environmental Requirements ◽  
The Government

This paper analyses all of the activities carried out by CETREL to establish its Environmental Management System - EMS. This system encompasses all of CETREL's environmental protection efforts: treatment of industrial effluents and residues; environmental monitoring (soil, air, groundwater, rivers and the sea); wildlife preservation programme, environmental education programme, among other activities. CETREL's EMS is a mid-sized system consisting of nearly 425 Instruments (244 Procedures and 181 Work Instructions). The size of the system was selected based on British Standard BS-7750, which provides the principal tools that will allow the organisation to continually maximise beneficial environmental effects while minimising adverse environmental effects. Since the EMS in question is a voluntary one, the result of initiatives taken by CETREL itself, the system's design and architecture were chosen so that the Company's environmental standards would be more stringent than those in the environmental legislation, that is, stricter than the government-mandated environmental requirements.

scholarly journals Daytime perimeter environmental noise in the vicinity of four hospitals in the city of Lima, Peru

Noise Mapping ◽  
2020 ◽  
Vol 7 (1) ◽  
pp. 239-247
Author(s):  
Alberto E. García-Rivero ◽  
Ricardo Ángel Yuli-Posadas ◽  
Warren Reátegui Romero ◽  
Odón Sánchez-Ccoyllo ◽  
Wilfredo Bulege-Gutierrez ◽  
...  
Keyword(s):  
Working Hours ◽  
Environmental Noise ◽  
Integration Time ◽  
Environmental Standards ◽  
Mean Values ◽  
The Hours ◽  
Measurement Mode ◽  
Special Protection Areas ◽  
The City ◽  
National Environmental

AbstractThe present study is intended to get to know the levels of perimeter diurnal environmental noise of four hospitals in the city of Lima. The measurement mode used at each hospital was A-weighting, with an integration time of five minutes per recording. It was measured in the FAST mode with calibrations made at the beginning and end of the measurement day. Statistical analysis consisted of the mean comparison T test which was applied at all the hospitals considered in the study. At the four hospitals, at all the hours of measurement and both on working days and non-working days (Sunday), LAeq mean values are higher than 83 dBA. On working days, two periods of maximum noise from 08:00 to 10:00 in the morning and from 17:00 to 19:00 in the afternoon coincide with the start and end of working hours. The perimeter diurnal environmental noise levels determined at the vicinity of four hospitals show higher values in all cases to those established by the Peruvian National Environmental Standards for Noise for special protection areas both for working days and for non-working days. Noise that comes from the dense and disorganized traffic of Lima plays a fundamental role in this behaviour.

scholarly journals Conflict of Interest Between Regulatory Agencies on Telecommunication Sector And Consequences of Improper Telecommunication Mast Installation in Nigeria

Law and World ◽  
2021 ◽  
Vol 7 (5) ◽  
pp. 47-59
Keyword(s):  
Conflict Of Interest ◽  
Effective Means ◽  
Environmental Hazards ◽  
Regulatory Agencies ◽  
Environmental Standards ◽  
Telecommunication Sector ◽  
Public Places ◽  
Regulatory Bodies ◽  
Materials Used ◽  
National Environmental

This paper examines various laws governing telecommunication installations in Nigeria with a view to addressing the perceived shortcomings in the laws. While the National Environmental Standards Regulatory and Enforcement Agency Act (NESREA Act) and the National Communications Commission (NCC Act) have been enacted to solve the problems associated with the effects of telecommunication mast installation in public places, the outcome of these laws seem inadequate for failure to provide effective means of enforcing same. The study considered the provisions of NESREA Act which is the principal Law enacted for ensuring that environ- mental standards are maintained and protected in Nigeria and the provisions of NCC Act which is the law that establishes the principal body which regulates telecommunication installations in Nigeria as well as other legislations. While NESREA in its Regulation provided for a setback of 10 metres, the NCC Act provided for a setback of 5 metres, which often conflicts and put victims at disadvantage and also conflict between the two regulatory bodies. It was observed that serious environmental hazards are linked to installation of tele- communication masts within/close to residential premises. Among these are leukemia, cancer, cracks on the buildings, pollution, such as water, land and air. The problems also include telecommunication masts falling on buildings and sometimes death due to sub- standard materials used in the installation as against the stated standard by the controlling regulatory bodies.

CRITERIA ANALYSIS OF INTERNATIONAL ENVIRONMENTAL STANDARDS AFFECTING ARCHITECTURE BUILDING

2013 ◽  
Vol 3 (2) ◽  
pp. 40-45
Author(s):  
E. A SUKhININA
Keyword(s):  
Environmental Standards ◽  
Environmental Certification ◽  
Technical Requirements ◽  
Environmental Requirements ◽  
Partition Structure ◽  
International Systems

International systems of environmental certification and environmental standards in construction are considered by the author. Definitions of terms: environmental standards and environmental certification of buildings given by the author. Partition structure and environmental requirements for certification systems is reviewed and analyzed. Effects of environmental requirements on architectural standardsplanning solutions for buildings and structures analyzed. Number of technical requirements defined in environmental standards. Recommendations are made to improve the system of certification in the construction of buildings.

Investigation on the Combustion Properties of Refuse Derived Fuel in an Internally Circulating Fluidized Bed

2011 ◽  
Vol 354-355 ◽  
pp. 170-173
Author(s):  
Dian Fu Liu ◽  
Fang Qing Zhu ◽  
Xiao Lin Wei
Keyword(s):  
Fluidized Bed ◽  
Flue Gas ◽  
Circulating Fluidized Bed ◽  
Pollutant Emissions ◽  
Infrared Spectrometry ◽  
Environmental Standards ◽  
Refuse Derived Fuel ◽  
Combustion Properties ◽  
Refuse Derived Fuels ◽  
National Environmental

An internally circulating fluidized bed (ICFB) was applied to investigate the behavior of refuse derived fuels (RDF) incineration. The temperature distribution along bed height was measured by the thermocouple and the pollutant emissions in the flue gas were measured by Fourier transform infrared spectrometry Gasmet DX-3000. In the tests the concentrations of the species CO CO2 HCl N2O SO2 were measured online. The experimental results showed that the RDF could combust steadily in the fluidized bed. The concentrations of the CO HCl N2O in flue gas were higher than the values of national environmental standards.

scholarly journals HARMONIZATION OF TECHNOLOGICAL AND ENVIRONMENTAL STANDARDS FOR RADIO-ELECTRONIC INDUSTRIAL SYSTEMS WITH USING OF GEOINFORMATION TECHNOLOGIES

2019 ◽  
Vol 1 (7) ◽  
pp. 77-81
Author(s):  
N. A. Zhilnikova ◽  
I. A. Shishkin
Keyword(s):  
Production Systems ◽  
High Tech ◽  
Environmental Standards ◽  
Industrial Systems ◽  
Ecological Capacity ◽  
Natural Production ◽  
Industrial Complexes ◽  
Production Complex ◽  
New Construction ◽  
Environmental Requirements

Elaboration of technological and environmental standards for development of high-tech electronic production systems is regulated by significantly changed environmental legislation. This article considers the basic principles, structure and methods of ensuring the competitive development of electronic production systems in conditions of their modernization and new construction by a regional-basin approach with using geo-information systems. The methodology for harmonization of standards, taking into account the ecological capacity and multidimensionality of natural-industrial complexes is proposed. This methodology is based on results of multi-years researches and criteria developed by authors determining for quotas distribution of permissible load within territorial-industrial complexes applying sector wide approach. The ranking of all major industries in natural production complex predetermined the need for harmonization of social and environmental requirements with production characteristics of developing industries and individual production complexes. To solve these tasks, the algorithm and methodology for harmonizing the two key blocks “technological” and “environmental” within territorial natural production complex is proposed. The harmonization criteria are defined, the algorithm for constructing a simulation model of territorial natural production complex and the structure of information software are developed.

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