Utilization of Wastewater from Fertilizer Industry – A Case Study

1994 ◽  
Vol 29 (9) ◽  
pp. 169-173
Author(s):  
Sohair I. Abou-Elela ◽  
Nabil Abdelmonem
Keyword(s):  
Portland Cement ◽  
Cooling Water ◽  
Control Measures ◽  
Fertilizer Industry ◽  
Acidic Wastewater ◽  
Plant Control

In-plant control in a superphosphate fertilizer company in Egypt was implemented. The control measures in the plant included utilization of wastewater produced from the scrubbing towers to produce sodium fluorosilicate (Na2SiF6) which is a preservative for Portland cement. Wastewater recovery reduced the pollution amount by 40%. Moreover, it saves almost 600,000 L.E./year. The remained unwanted residue which is a very concentrated highly acidic wastewater was diluted with wasted cooling water in the plant. The proposed study is already implemented and is presently in operation.

Cost of corrosion in fertilizer industry - A case study

2004 ◽  
Vol 55 (11) ◽  
pp. 865-871 ◽  
Author(s):  
R. Bhaskaran ◽  
N. Palaniswamy ◽  
N. S. Rengaswamy ◽  
M. Jayachandran
Keyword(s):  
Fertilizer Industry

A case study of noise pollution levels during the restrictions period due to COVID-19.

2021 ◽  
Vol 263 (6) ◽  
pp. 206-214
Author(s):  
David Montes-González ◽  
Juan Miguel Barrigón-Morillas ◽  
Ana Cristina Bejarano-Quintas ◽  
Manuel Parejo-Pizarro ◽  
Guillermo Rey-Gozalo ◽  
...  
Keyword(s):  
Noise Pollution ◽  
Urban Environments ◽  
Control Measures ◽  
Acoustic Measurements ◽  
Pollution Levels ◽  
The World ◽  
The Impact ◽  
The City

The pandemic of coronavirus disease (COVID-19) led to the need for drastic control measures around the world to reduce the impact on the health of the population. The confinement of people in their homes resulted in a significant reduction in human activity at every level (economic, social, industrial, etc.), which was reflected in a decrease in environmental pollution levels. Studying the evolution of parameters, such as the level of environmental noise caused by vehicle traffic in urban environments, makes it possible to assess the impact of this type of measure. This paper presents a case study of the acoustic situation in Cáceres (Spain) during the restriction period by means of long-term acoustic measurements at various points of the city.

Impact of dust on health of on-site construction workers – a case study

2021 ◽  
Vol 10 (1) ◽  
Author(s):  
Gauri Mohan ◽  
Annie Sonia Xavier
Keyword(s):  
Air Pollution ◽  
Questionnaire Survey ◽  
Residential Building ◽  
Dust Control ◽  
Control Measures ◽  
Construction Equipment ◽  
Dust Pollution ◽  
Building Site ◽  
Many Sources

The rate of air pollution is becoming a cause for worldwide concern because of its substantial increase. Different sources like combustion of fuels, release of smoke from industries etc are responsible for the pollution of air. The construction industry is a major contributor to air pollution in the form of dust. Most of the activities involved in the completion of a construction project contribute to the generation of dust in one way or another. There are many sources of dust in a construction site like the use of construction equipment, transportation activities etc. the dust thus generated can ill effects as well. But, the problem of dust pollution is not addressed properly mainly because of the lack of awareness in this area. Proper identification of sources of dust in sites, its health impacts etc can help generate awareness and also help in implementing control measures. This can help reduce dust pollution on site. Here, a residential building site is taken for the case study. A questionnaire survey is conducted for the workers to identify the negative impacts construction dust has and also to determine the most common dust control measures employed in site. Keywords—air pollution, construction activities, construction equipment, questionnaire survey, dust control

Early Warning Mechanism for the Surge of Passengers in Metro Systems Based on Automated Fare Collection Data: Case Study of Guangzhou, China

2019 ◽  
Vol 2673 (4) ◽  
pp. 917-929 ◽  
Author(s):  
Ning Huan ◽  
Enjian Yao ◽  
Binbin Li
Keyword(s):  
Early Warning ◽  
Traffic Control ◽  
Safety Management ◽  
Early Stage ◽  
Point Of View ◽  
Control Measures ◽  
Passenger Flow ◽  
Early Warning Mechanism ◽  
Metro Systems

Recently, surges of passengers caused by large gatherings, temporary traffic control measures, or other abnormal events have frequently occurred in metro systems. From the standpoint of the operation managers, the available information about these outside events is incomplete or delayed. Unlike regular peaks of commuting, those unforeseen surges pose great challenges to emergency organization and safety management. This study aims to assist managers in monitoring passenger flow in an intelligent manner so as to react promptly. Compared with the high cost of deploying multisensors, the widely adopted automated fare collection (AFC) system provides an economical solution for inflow monitoring from the application point of view. In this paper, a comprehensive framework for the early warning mechanism is established, including four major phases: data acquisition, preprocessing, off-line modeling, and on-line detection. For each station, passengers’ tapping-on records are gathered in real time, to be further transformed into a dynamic time series of inflow volumes. Then, a sequence decomposition model is formulated to highlight the anomaly by removing its inherent disturbances. Furthermore, a novel hybrid anomaly detection method is developed to monitor the variation of passenger flow, in which the features of inflow patterns are fully considered. The proposed method is tested by a numerical experiment, along with a real-world case study of Guangzhou metro. The results show that, for most cases, the response time for detection is within 5 min, which makes the surge phenomenon observable at an early stage and reminds managers to make interventions appropriately.

Cybersecurity Risks and Automated Maritime Container Terminals in the Age of 4IR

2018 ◽  
pp. 497-516
Author(s):  
Peter Beaumont
Keyword(s):  
Industrial Revolution ◽  
Social Consequences ◽  
Control Measures ◽  
Container Terminals ◽  
Industrial Control System ◽  
Industrial Control ◽  
Critical Function ◽  
Major Threat ◽  
Use Of Technology

This chapter presents a case study of automated maritime container terminals (CTs). It has the aim of demonstrating that the risks derived from the use of technology associated with the Fourth Industrial Revolution (4IR) are both real and dangerous. The work explains the critical function of CTs in the global supply chain and outlines the economic and social consequences that could result if their operations were to be disrupted. The motivations of a range of threat-actors are presented, and it is established that there are feasible scenarios in which any one of the major threat-actor categories may wish to cause disruption at CTs. The vulnerabilities of yard cranes are investigated, and it is concluded that there are likely to be exploitable vulnerabilities in the industrial control system (ICS) networks used on these cranes. The chapter argues that many CT operations are likely to be exposed to significant cyber-based risks and that this exposure will increase with the roll-out of further 4IR technologies unless appropriate control measures are implemented.

Potential for Dealers in Indian Fertilizer Industry: A Case Study

2016 ◽  
Vol 5 (5) ◽  
pp. 33-41
Author(s):  
Nishant Gaurav ◽  
Ayush Bhandari
Keyword(s):  
Fertilizer Industry

scholarly journals An Examination of the Performance Based Building Code on the Design of a Commercial Building

2012 ◽  
Vol 7 (1) ◽  
pp. 37-44 ◽  
Author(s):  
John Greenwood
Keyword(s):  
Quality Control ◽  
Western Australia ◽  
Control Measures ◽  
Assessment Process ◽  
Building Code ◽  
Commercial Building ◽  
Alternative Design ◽  
Alternative Designs ◽  
The Impact

The Building Code of Australia (BCA) is the principal code under which building approvals in Australia are assessed. The BCA adopted performance-based solutions for building approvals in 1996. Performance-based codes are based upon a set of explicit objectives, stated in terms of a hierarchy of requirements beginning with key general objectives. With this in mind, the research presented in this paper aims to analyse the impact of the introduction of the performance-based code within Western Australia to gauge the effect and usefulness of alternative design solutions in commercial construction using a case study project. The research revealed that there are several advantages to the use of alternative designs and that all parties, in general, are in favour of the performance-based building code of Australia. It is suggested that change in the assessment process to streamline the alternative design path is needed for the greater use of the performance-based alternative. With appropriate quality control measures, minor variations to the deemed-to-satisfy provisions could easily be managed by the current and future building surveying profession.

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