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Article
Publication date: 1 December 2004

33

Abstract

Details

Soldering & Surface Mount Technology, vol. 16 no. 3
Type: Research Article
ISSN: 0954-0911

Keywords

Article
Publication date: 13 September 2021

Monica Puri Sikka and Mandira Mondal

Cleanrooms are highly controlled enclosed rooms where air quality is monitored and ensured to have less contamination according to standard cleanliness level. Air filters…

Abstract

Purpose

Cleanrooms are highly controlled enclosed rooms where air quality is monitored and ensured to have less contamination according to standard cleanliness level. Air filters are used to optimize indoor air quality and remove air pollutants. Filter media and filtering system are decided as per requirement. Depth filter media are mostly used in cleanroom filtrations. This paper aims to present a comprehensive review of the evolution of cleanroom filter media. It evaluates the advantages and disadvantages of air filter media. It is also studied which air filters have additional properties such as anti-microbial properties, anti-odour properties and chemical absorbent. Development and innovation of air filters and filtration techniques are necessary to improve the performance via the synergistic effect and it can be a possible avenue of future research.

Design/methodology/approach

This paper aims to drive the future of air filter research and development in achieving high-performance filtration with high filtration efficiency, low operational cost and high durability. Air pollutants are classified into three types: suspended particles, volatile organic pollutants and microorganisms. Technologies involved in purification are filtration, water washing purification, electrostatic precipitation and anion technology. They purify the air by running it through a filter medium that traps dust, hair, pet fur and debris. As air passes through the filter media, they function as a sieve, capturing particles. The fibres in the filter medium provide a winding path for airflow. There are different types of air filters such as the high-efficiency particulate air filter, fibreglass air filter and ultra-low particulate air filter.

Findings

Emerging filtration technologies and filters such as nanofibres, filters with polytetrafluoroethylene membrane are likely to become prevalent over the coming years globally. The introduction of indoor air filtration with thermal comfort can be a possible avenue of future research along with expanding indoor environment monitoring and improving air quality predictions. New air filters and filtration technologies having better performance with low cost and high durability must be developed which can restrict multiple types of pollutants at the same time.

Originality/value

The systematic literature review approach used in this paper highlights the emerging trends and issues in cleanroom filtration in a structured and thematic manner, enabling future work to progress as it will continue to develop and evolve.

Details

Research Journal of Textile and Apparel, vol. ahead-of-print no. ahead-of-print
Type: Research Article
ISSN: 1560-6074

Keywords

Article
Publication date: 25 April 2008

Ibrahim Mohamed Shaluf

This paper aims to provide graduate students, researchers, governmental and independent agencies with an overview on static electricity.

Abstract

Purpose

This paper aims to provide graduate students, researchers, governmental and independent agencies with an overview on static electricity.

Design/methodology/approach

Static electricity has been studied by researchers, academicians, company specialists, governmental and independent agencies. Static electricity incidents have been collected from several sources such as the technical, general articles, internet web sites, and internal reports. The static electricity definition, incidents, hazards, and static electricity prevention have been reviewed. The static electricity incidents have been arranged and classified into fire, and explosions.

Findings

Static electricity can be the cause of problems in many areas of industry. It presents a source of ignition for flammable gases, liquids and powders. It can cause fires and explosions in tankers, aircraft and petrochemical plant and in printing, pharmaceutical, food products and explosives industries.

Originality/value

This paper presents an overview on static electricity, the incidents, and the methods to prevent static electricity generation and accumulation.

Details

Disaster Prevention and Management: An International Journal, vol. 17 no. 2
Type: Research Article
ISSN: 0965-3562

Keywords

Article
Publication date: 1 March 1991

JoAnn DeVries

In 1987, Campbell Soup Company introduced the Souper Combo, a line of frozen soup and sandwiches. Melvin Druin, vice‐president for packaging, called it “the perfect…

1779

Abstract

In 1987, Campbell Soup Company introduced the Souper Combo, a line of frozen soup and sandwiches. Melvin Druin, vice‐president for packaging, called it “the perfect combination of old‐fashioned good taste and today's convenience. No mess. No fuss. Easy to use. All you have to do is clean your spoon. Everything else just throw away.” Unfortunately, the multi‐layered plastic‐coated packaging does not just disappear when thrown away. Plastics packaging, particularly from convenience products, has become a waste disposal nightmare. Garbage, an environmental magazine, gave the Souper Combo an “in the dumpster” award, saying, “It's precisely the kind of product that's created the municipal landfill monster.”

Details

Reference Services Review, vol. 19 no. 3
Type: Research Article
ISSN: 0090-7324

Article
Publication date: 1 August 1995

Mahesh C. Gupta

Recently, corporations have been confronted with a number of globalenvironmental challenges such as global warming, acid rain, depletion ofnatural resources, waste…

13445

Abstract

Recently, corporations have been confronted with a number of global environmental challenges such as global warming, acid rain, depletion of natural resources, waste management, green consumerism and pollution prevention. There is growing pressure to deliver products and services which are environmentally compatible. A number of corporations such as Du Pont, 3M, AT&T, Xerox and Procter & Gamble are, therefore, integrating various environmental policies and programmes into their operations strategy and specific decisions concerning operations such as product design/planning, process technology selection, and quality management. Introduces the concepts of environmental management (EM) and argues that firms which do not recognize the implications of environmental problems on the operations function will not succeed in the competitive market. Various environmental management practices (such as implementing aggressive pollution‐prevention programmes, initiating environment‐related performance measures and developing green products and process technologies) provide opportunities to strengthen a firm′s distinctive competence in terms of operations objectives such as highest quality, lowest cost, best dependability, and greatest flexibility. Thus, EM gives a competitive advantage and develops new links between operations strategy and the corporate strategy (e.g. cost leadership and product differentiation).

Details

International Journal of Operations & Production Management, vol. 15 no. 8
Type: Research Article
ISSN: 0144-3577

Keywords

Article
Publication date: 2 March 2022

Maryam Khashij, Mohammad Hossein Salmani, Arash Dalvand, Hossien Fallahzadeh, Fatemeh Haghirosadat and Mehdi Mokhtari

This paper aims to investigation of processes for Pb2+ elimination from water/wastewater as a significant public health issue in many parts of world. The removal of Pb2+

Abstract

Purpose

This paper aims to investigation of processes for Pb2+ elimination from water/wastewater as a significant public health issue in many parts of world. The removal of Pb2+ ions by various nanocomposites has been explained from water/wastewaters. ZnO-based nanocomposites, as eco-friendly nanoparticles with unique physicochemical properties, have received increased attention to remove Pb2+ ions from water/wastewaters.

Design/methodology/approach

In this review, different ZnO-based nanocomposites were reviewed for their application in the removal of Pb2+ ions from the aqueous solution, typically for wastewater treatment using methodology, such as adsorption. This review focused on the ZnO-based nanocomposites for removing Pb2+ ions from water and wastewaters systems.

Findings

The ZnO-based nanocomposite was prepared by different methods, such as electrospinning, hydrothermal/alkali hydrothermal, direct precipitation and polymerization. Depending on the preparation method, various types of ZnO-based nanocomposites like ZnO-metal (Cu/ZnO, ZnO/ZnS, ZnO/Fe), ZnO-nonmetal (PVA/ZnO, Talc/ZnO) and ZnO-metal/nonmetal (ZnO/Na-Y zeolite) were obtained with different morphologies. The effects of operational parameters and adsorption mechanisms were discussed in the review.

Research limitations/implications

The findings may be greatly useful in the application of the ZnO-based nanocomposite in the fields of organic and inorganic pollutants adsorption.

Practical implications

The present study is novel, because it investigated the morphological and structural properties of the synthesized ZnO-based nanocomposite using different methods and studied the capability of green-synthesized ZnO-based nanocomposite to remove Pb2+ ions as water contaminants.

Social implications

The current review can be used for the development of environmental pollution control measures.

Originality/value

This paper reviews the rapidly developing field of nanocomposite technology.

Details

Pigment & Resin Technology, vol. ahead-of-print no. ahead-of-print
Type: Research Article
ISSN: 0369-9420

Keywords

Article
Publication date: 1 March 1994

LETTER FROM AMERICA Valspar Unit to Acquire Cargill The Valspar Corp. has announced that it has reached an agreement with the Federal Trade Commission that will allow its…

Abstract

LETTER FROM AMERICA Valspar Unit to Acquire Cargill The Valspar Corp. has announced that it has reached an agreement with the Federal Trade Commission that will allow its subsidiary, McWhorter Inc., to acquire Cargill Inc.'s Resin Products Division.

Details

Pigment & Resin Technology, vol. 23 no. 3
Type: Research Article
ISSN: 0369-9420

Article
Publication date: 1 March 1983

IT IS a widely admitted fact that a large proportion of inventions come from Britain. We have always been an innovative group of nations (for we are not referring to…

Abstract

IT IS a widely admitted fact that a large proportion of inventions come from Britain. We have always been an innovative group of nations (for we are not referring to England alone. Scotland and Wales have done more than their share,) but far too often the exploitation has enriched firms and countries far removed from these islands.

Details

Work Study, vol. 32 no. 3
Type: Research Article
ISSN: 0043-8022

Article
Publication date: 2 March 2015

S. Fore and C. Mbohwa

The paper aims to observe a continuous process industry, the cement manufacturing industry with the aim of identifying greening opportunities in its production operations…

Abstract

Purpose

The paper aims to observe a continuous process industry, the cement manufacturing industry with the aim of identifying greening opportunities in its production operations. The study analyses areas pertaining to the cement industry that impact the environment with specific focus on the industry within a developing, lower income country.

Design/methodology/approach

A cleaner production (CP) approach was used in a case study approach, focussing on issues such as gaseous emissions and particulate emissions. Both capital intensive and less intensive options are proposed. Source reduction and pollution prevention operations that were used in this study include chemical substitution, technology modification and on-site reuse/recovery/recycling opportunities.

Findings

The paper provides insights about how change is brought about within a continuous process industry. It suggests that successful leaders act as “integrating forces” on two levels: integrating the elements of corporate identity structures and mediating between the corporate branding structures and the individual. Capital interventions included redesigning the clinker conveyor, as well as restructuring the dust transportation system. There is a need for the developing countries to track and identify modern interventions that are available within industry and adopt them.

Research limitations/implications

The paper focusses on a single cement factory in a low income country, as the case study approach was used. As such, findings and options generated may not be generalized, as the processes from one industry to another tend to differ in different economies.

Practical implications

The paper includes implications for the development of greening manufacturing practices in the cement industry.

Originality/value

This paper fulfils an identified need to study how greening practices can be enabled and enhanced in a continuous manufacturing industry. The work informs greening practices at any level, with a focus of production experiences in the cement industry in a lower technology, developing economy that is less industrialized.

Details

Journal of Engineering, Design and Technology, vol. 13 no. 1
Type: Research Article
ISSN: 1726-0531

Keywords

Article
Publication date: 14 November 2008

George K. Stylios

Examines the fourteenth published year of the ITCRR. Runs the whole gamut of textile innovation, research and testing, some of which investigates hitherto untouched…

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Abstract

Examines the fourteenth published year of the ITCRR. Runs the whole gamut of textile innovation, research and testing, some of which investigates hitherto untouched aspects. Subjects discussed include cotton fabric processing, asbestos substitutes, textile adjuncts to cardiovascular surgery, wet textile processes, hand evaluation, nanotechnology, thermoplastic composites, robotic ironing, protective clothing (agricultural and industrial), ecological aspects of fibre properties – to name but a few! There would appear to be no limit to the future potential for textile applications.

Details

International Journal of Clothing Science and Technology, vol. 20 no. 6
Type: Research Article
ISSN: 0955-6222

Keywords

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