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Article
Publication date: 17 March 2012

Thimmappa Venkatarangaiah Venkatesha and Sudhakar Ranganatha

The purpose of this paper is to evaluate the corrosion resistance of the electroless Ni‐P coatings in two aggressive media 3.5 wt.% NaCl and Synthetic industrial waste water. Also…

Abstract

Purpose

The purpose of this paper is to evaluate the corrosion resistance of the electroless Ni‐P coatings in two aggressive media 3.5 wt.% NaCl and Synthetic industrial waste water. Also to study the effect of Phosphorous content in the electroless Ni‐P deposits on its surface nature, morphology and corrosion resistance.

Design/methodology/approach

The corrosion behavior of electroless Ni‐P coatings generated on mild steel coupons from an acidic and an alkaline baths and their anti‐corrosion performance of was compared systematically in 3.5 wt.% of NaCl solution and also in synthetic industrial waste water. Microstructure and surface composition of coatings were analyzed using X‐ray diffraction, scanning electron microscopy and energy dispersive spectroscopy techniques, respectively. The Ni‐P coated mild steel specimens were subjected to corrosion and the rate of corrosion was studied by chemical and electrochemical methods. The linear sweep voltammetry, Tafel and electrochemical impedance spectroscopy were employed to obtain corrosion data.

Findings

The electroless Ni‐P coatings with higher P content possess homogeneous, uniform and amorphous surface nature and exhibited higher corrosion resistance in the aggressive corrosive media chosen.

Originality/value

This paper provides corrosion behavior of electroless Ni‐P coatings in 3.5 wt.% NaCl and synthetic industrial waste water, and establishes the importance of phosphorous content on nature and properties of the coatings.

Details

Anti-Corrosion Methods and Materials, vol. 59 no. 2
Type: Research Article
ISSN: 0003-5599

Keywords

Article
Publication date: 28 May 2021

Ainur Rosyida, Suranto, Mohammad Masykuri and Margono

This paper aims to select a type of mordant from aluminium salts, namely, aluminium sulphate, aluminium nitrate and polyaluminium chloride (PAC) with the lowest potential for…

Abstract

Purpose

This paper aims to select a type of mordant from aluminium salts, namely, aluminium sulphate, aluminium nitrate and polyaluminium chloride (PAC) with the lowest potential for contamination so that their use will minimise pollution from natural dye waste. It also aims to determine the pollution value of natural dye immersion waste from jackfruit wood extract, secang wood, mangsi fruit and several synthetic dyes, to identify potential environmental pollution.

Design/methodology/approach

Dyeing with natural dyes was performed by exhaust at room temperature by the pre-mordant method, while with synthetic dyes it was performed by exhaust according to the dyeing procedure (reactive, vat and naphthol). The groundwater, mordant solutions, natural dye extract and the waste-water from the natural and synthetic dyes were then tested to determine their biological oxygen demand (BOD5), chemical oxygen demand (COD), total suspended solids (TSS), pH, Al and heavy metal contents such as chromium (Cr), copper (Cu), cadmium (Cd), nickel (Ni), cobalt (Co) and lead (Pb).

Findings

Aluminium sulphate had the lowest pollution load while PAC had the highest, as aluminium sulphate had a higher BOD5/COD ratio (0.62–0.67) than aluminium nitrate (0.56–0.64) or PAC (0.44–0.54). The dyeing waste from the three natural dyes contained an acidic pH of 3.5–4.2, Al of 75.280–621.34 mg/L, Cr of 0.154–0.215 mg/L and Cu of 0.035–0.072 mg/L. The values of TSS, COD and BOD5 are higher than the quality standards of the waste but are environmentally friendly because the ratio of the BOD5/COD values from the waste ranges from 0.44–0.67.

Research limitations/implications

The findings indicate that as a mordant, aluminium sulphate results in lower pollution loads than aluminium nitrate and PAC. However, all three mordants contain Cr and Cu, albeit in negligible concentrations. Therefore, it is recommended that future studies strive to identify a mordant that has lower pollution loads and does not contain metals but can increase dyeing results to satisfy consumer requirements. It is the hope that, with the discovery of a new mordant, natural dyes will be the solution for the heavy metal pollution caused by synthetic dyes.

Practical implications

The use of environmentally-friendly mordants and natural dyes in the Indonesian textile and batik industry will give rise to superior quality eco-textile and eco-batik products. Such environmentally-friendly and high-quality products will not only increase competition and consumer interest but increase product sales as well which will, in turn, increase incomes and the economy. Additionally, an increase in the use of natural dyes by the textile and batik industry will serve as additional income to the communities and farmers from which the raw materials for the natural dyes are sourced thereby creating jobs and increasing welfare.

Social implications

As environmentally-friendly mordants and natural dyes replace the hazardous and toxic materials currently used in the textile and batik industry, it guarantees the health and safety of its consumers and workers. Furthermore, as the waste-water produced is biodegradable, it reduces river and groundwater pollution. It is, therefore, expected that this information will not only lead to a shift in attitude within the textile and batik industries but the adoption of environmentally-friendly materials, for the sake of the environment, as well as the development of eco-textile and eco-batik products.

Originality/value

Aluminium sulphate is a mordant type of aluminium salt with a lower potential for contamination than aluminium nitrate and PAC. However, PAC has been discovered to be a mordant for natural dyes, as has the fruit of the mangsi shrub, which has recently been discovered as a naturally occurring blue dye.

Details

Research Journal of Textile and Apparel, vol. 26 no. 1
Type: Research Article
ISSN: 1560-6074

Keywords

Article
Publication date: 13 November 2009

George K. Stylios

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

1150

Abstract

Examines the fifthteenth 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. 21 no. 6
Type: Research Article
ISSN: 0955-6222

Keywords

Article
Publication date: 1 December 2004

George K. Stylios

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

3704

Abstract

Examines the tenth 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. 16 no. 6
Type: Research Article
ISSN: 0955-6222

Keywords

Article
Publication date: 15 November 2011

George K. Stylios

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

Abstract

Examines the sixteenth 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. 23 no. 6
Type: Research Article
ISSN: 0955-6222

Keywords

Article
Publication date: 1 May 1990

Sushil

A systems perspective of waste management allows an integratedapproach not only to the five basic functional elements of wastemanagement itself (generation, reduction, collection…

3893

Abstract

A systems perspective of waste management allows an integrated approach not only to the five basic functional elements of waste management itself (generation, reduction, collection, recycling, disposal), but to the problems arising at the interfaces with the management of energy, nature conservation, environmental protection, economic factors like unemployment and productivity, etc. This monograph separately describes present practices and the problems to be solved in each of the functional areas of waste management and at the important interfaces. Strategies for more efficient control are then proposed from a systems perspective. Systematic and objective means of solving problems become possible leading to optimal management and a positive contribution to economic development, not least through resource conservation. India is the particular context within which waste generation and management are discussed. In considering waste disposal techniques, special attention is given to sewage and radioactive wastes.

Details

Industrial Management & Data Systems, vol. 90 no. 5
Type: Research Article
ISSN: 0263-5577

Keywords

Article
Publication date: 1 January 1947

In his introductory remarks the Medical Officer briefly comments on the war in its relations to medical practice and public health. He reminds us that Japanese action, by…

Abstract

In his introductory remarks the Medical Officer briefly comments on the war in its relations to medical practice and public health. He reminds us that Japanese action, by depriving us of quinine, encouraged research for synthetic substitutes. Again, penicillin and D.D.T. were given attention that they, possibly, would not otherwise have had. Food standards, long urgently needed, have been established for many important foods. He further points out that “adequate finance and international scientific co‐operation” has aided atomic research. These remarks make an exceedingly appropriate introduction to what immediately follows. The Borough of Leigh has an area of 6,359 acres, that is ten square miles. The population is 45,317, or about 4,500 to the square mile. It lies in the centre of one of the greatest manufacturing districts in the world. This district includes Manchester, Liverpool, Bury, Wigan and other places whose names alone suggest intense industrial activity. Leigh, therefore, densely populated and taking an active part in this industrial activity, presents the special health problems that are always to be found in places where nature has been subordinated to the needs of industry. One of these problems, and by no means the least important one, is atmospheric pollution caused by the smoke of domestic fires and of factory fires. It is as old as any and it is still unsolved. It is but one of the many attempts that have been made in the past to better public or domestic hygiene. Weak or faulty administration or the lack of compulsory powers have enhanced difficulties, already considerable, when confronted with actively expressed popular prejudice, or worse still with the apathy of ignorance, or the opposition arising from vested interests. To enforce Acts of Parliament or regulations under such conditions was in some cases an almost impossible task. Thus the report states that the Manchester and Regional Smoke Abatement Committee is now functioning again—its work was suspended during the war. “It is a voluntary association of local authorities… and acts in an advisory capacity.” It seems that out of 91 local authorities—including two County Councils—sixty‐eight have joined or resumed their previous membership of the Regional Committee. Since only fifty‐three out of ninety‐one were pre‐war members the increase of membership from about 54 to 78 per cent. of the possible membership is taken to indicate that greater interest is being taken in the problem of smoke abatement. Just so. But why not the full possible membership? We can to a certain extent understand this if the powers of the Committee are merely advisory and they have to deal with some who have “urged that smoke means work, the inference being that the greater the degree of pollution the higher will be the level of employment.” Again, we arc told that the Manchester Corporation Bill proposes to create a smokeless zone in the centre of the city. The proposal to create such zones has been “criticised on the grounds that the area they comprise will still be subject to pollution from outside sources.” Of course they will! Who in the world doubts it? But we submit that a beginning should be made somewhere, somehow, and somewhen. A committee which can act only in an advisory capacity would have little influence on people who use perverted reasoning to justify conditions that the committee has been created to suppress. Some years ago, before the war brought everything to a standstill, the foul state of the Ribble, Mersey and associated streams engaged the attention of local authorities. It might, with as much reason, be urged that polluted streams were in like case. Hence fouled air and fouled streams are indications of and inseparable accidents of industrial success! The matter in some respects inclines slightly to the humorous side. Not so the following. The Medical Officer says “the high infant mortality and general death rates, together with the high incidence of respiratory diseases associated with atmospheric pollution of our industrial areas should be sufficient in themselves to dispel any attitude of complacency or apathy towards this problem.” We do not suggest Leigh is any better or any worse on the whole than any other industrial area in this respect. The old tag ex uno disce omnes seems to fit the case. The report calls attention to the following facts. That 70,000 tons of carbon black is discharged into London air every year, and its value is £40 a ton. That the Department of Scientific and Industrial Research in their report of 1945 on atmospheric pollution in Leicester point out that pollution from our industrial areas spreads all over England. That twice as much smoke is made from domestic fires than from industrial fires. That in burning coal in an ordinary grate only about one‐fifth of the coal is used to supply heat and that half a hundredweight per ton of coal used goes up the chimney as smoke. All this waste can be expressed with a fair approach to accuracy in terms of weight and monetary units. The Meteorological Office and later the Department of Scientific and Industrial Research have issued annual reports for the past twenty‐five years on this matter and Health Authorities and Public Analysts have done much the same thing. This scientific co‐operation has led to a great accumution of exact knowledge, and “all that is required for success is the application of this knowledge.” And this knowledge has not been adequately applied. Material waste and damage by smoke‐polluted air can be assessed in ordinary units. Waste of and damage to life cannot be so estimated. Mind and body suffer. Ill health, weakened physical powers, and resulting mental distress and impaired efficiency can, we suppose, only be duly appreciated by members of the medical profession whose duties bring them into personal touch with the patients. Vital statistics and bills of mortality but imperfectly reveal the truth. If atmospheric pollution had “impeded the war effort”—in the way in which that expression was usually taken to mean—adequate finance and scientific co‐operation would undoubtedly have been forthcoming, even perhaps to the extent of writing smoke abated for smoke abatement. Enemy action was sporadic and temporary. Smoke pollution has acted without haste but without rest for a hundred years and more. It is still acting as a persistent and contributory cause of ill‐health. At a time when enhanced national efficiency is declared to be an essential condition of national recovery and success this statement of responsible medical opinion should, like others of the same kind, receive practical and prompt consideration. However quickly the evil may be effectually dealt with, even if that were done to‐morrow, there still would be the time lag, and years must pass before the after effects have become eliminated. Nationalisation of all kinds is very much to the fore. “It would be wise,” says the Report, “to regard the problem as already calling for action on a national scale.” These it is suggested would include adequate supplies of standardised domestic and industrial equipment for burning smokeless fuels, and the revision of the powers of local authorities in whose hands the matter at present rests. While we are in full agreement with these suggested remedies the difficulties of applying them are obviously very great and the work of a generation if the authors of the fantastic objections already alluded to and possibly others of a like way of thinking have any real say in the matter.

Details

British Food Journal, vol. 49 no. 1
Type: Research Article
ISSN: 0007-070X

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 aspects…

1268

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

Article
Publication date: 1 June 2000

George K. Chako

Briefly reviews previous literature by the author before presenting an original 12 step system integration protocol designed to ensure the success of companies or countries in…

7525

Abstract

Briefly reviews previous literature by the author before presenting an original 12 step system integration protocol designed to ensure the success of companies or countries in their efforts to develop and market new products. Looks at the issues from different strategic levels such as corporate, international, military and economic. Presents 31 case studies, including the success of Japan in microchips to the failure of Xerox to sell its invention of the Alto personal computer 3 years before Apple: from the success in DNA and Superconductor research to the success of Sunbeam in inventing and marketing food processors: and from the daring invention and production of atomic energy for survival to the successes of sewing machine inventor Howe in co‐operating on patents to compete in markets. Includes 306 questions and answers in order to qualify concepts introduced.

Details

Asia Pacific Journal of Marketing and Logistics, vol. 12 no. 2/3
Type: Research Article
ISSN: 1355-5855

Keywords

Article
Publication date: 1 March 1974

Millions of the British people have for some years now been struggling valiantly to live with hard times, watching them day by day grow worse but always hopefully that the cloud…

Abstract

Millions of the British people have for some years now been struggling valiantly to live with hard times, watching them day by day grow worse but always hopefully that the cloud had a silver lining; that one day, reason and a sense of direction would prevail. Tyranny in many forms is a feature of history; the greatest epics have been risings of ordinary people to overthrow it. The modern form of tyranny is that of Money; the cruel and sinister ways in which it can be obtained and employed and the ineffectiveness of any measures taken to control the evils which result. Money savings over the years and the proverbial bank book, once the sure safeguard of ordinary people, are whittled away in value, never to recover. Causes always seemed to be contained within the country's own economy and industrial practices, and to this extent should have been possible of control. The complex and elaborate systems constructed by the last Government were at least intended for the purpose, but each attempt to curb excessive demands for more money, more and more for doing less and less— the nucleus of inflation—produced extreme reactions, termed collectively “industrial strife”. Every demand met without compensatory returns in increased work, inevitably led to rises in prices, felt most keenly in the field of food and consumer goods. What else would be expected from such a situation?

Details

British Food Journal, vol. 76 no. 3
Type: Research Article
ISSN: 0007-070X

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