Search results

The purpose of this paper is to study the fertility potential of the iron- and steel-making process waste granulated blast furnace slag to recover it as a beneficial product.

This slag fertilizer was mixed with organic fertilizer to enrich and dung the vegetable sets are pepper, lettuce and cucumbers.

In this study, 100 per cent granulated slag, 75 per cent granulated slag + 25 per cent fermented manure, 50 per cent granulated slag + 50 per cent fermented manure and 25 per cent granulated slag + 75 per cent fermented manure compositions were mixed with water and added to seeding pots. The growth rate of vegetable sets and also the level of contamination of heavy metals such as lead, copper, aluminum, mercury and cadmium were analyzed. The analyses results showed that contamination rates of lead, copper, aluminum, mercury and cadmium in lettuce and cucumber samples were in the range of acceptable levels for human health. Slag fertilizer enforced the set of growth rate and productivity, too.

By the recovery of the waste slag storage, transport and annihilation economical load on the industry would be eliminated, waste recovery contributes to the economical gaining and beneficial recovered products replace the need of fertility products.

At a recent inquest upon the body of a woman who was alleged to have died as the result of taking certain drugs for an improper purpose, one of the witnesses described himself as “an analyst and manufacturing chemist,” but when asked by the coroner what qualifications he had, he replied : “I have no qualifications whatever. What I know I learned from my father, who was a well‐known ‘F.C.S.’” Comment on the “F.C.S.” is needless.

The objective of this paper is to compare and evaluate the environmental performance of steel supply chains considering relevant environmental loss factors using Taguchi loss function (TLF) and design of experiments (DOE).

The different environmental loss factors in steel manufacturing supply chain were studied and the significant factors were identified. Their combined contributions along the significant factors were estimated using TLF and DOEs comparing environment losses at different scenarios.

The proposed methodology using TLF and DOEs was applied to three Indian steel manufacturing companies (Company A, Company B and Company C). The Company A with minimal average environmental loss score is found to be operating its supply chain with higher efficiency and has better environmental performance compared to the other two companies (B and C).

The results obtained are based on the study carried out in three Indian steel manufacturing companies. Therefore, the results cannot be generalized.

This paper will definitely show the direction for comparative environmental performance assessment of manufacturing industries in general and steel industries in specific considering environmental loss factors and environmental conditions. It determines individual performance across each environmental loss factor and their combined impact.

Although there is a need to have comparative performance analysis with respect to environmental losses among steel companies in developing countries such as India, but hardly any study has been reported in this direction. This work will definitely add the value to the supply chain literature in general and environment losses in steel manufacturing supply chain in specific.

The purpose of this paper is to describe the case of the Valorbio research project, in which students of different high-level programs were involved in the experimental work and in the dissemination of results in collaboration with the research team.

The inclusion in higher education curricula of content related to the sustainable development should be a preferred mechanism for the dissemination of good practices of sustainability. Another equally important way to achieve this is to involve students in research projects that seek solutions to the societal challenges related to sustainable growth. The Valorbio project aims to meet the needs for treating and reusing wastewater and solid waste. Its main goal was the development of modular systems for wastewater treatment based on constructed wetlands, exploring the possibility of the treatment systems being composed of solid waste and by-products from significant industrial sectors.

The students’ contribution to the research work was relevant and simultaneously allowed them to acquire skills on sustainable development. Additionally, the students contributed to the dissemination of the results. The Valorbio project can thus be considered a successful application of the concept of project-based learning (PBL), as a way to include sustainability issues content in the higher education curricula.

The applied experimental work had an original approach regarding the equipment design, the waste materials valuation, as well as the integration of waste treatment processes in the circular economy paradigm. This paper is the first reported PBL experience involving students of short-cycle technical–professional programs in partnership with first and second-level students and a research team.

As yet there are no indications that the President of the Local Government Board intends to give the force of law to the recommendations submitted to him by the Departmental Committee appointed by the Board to inquire into the use of preservatives and colouring matters in food. It is earnestly to be hoped that at least some of the recommendations of the Committee will become law. It is in the highest degree objectionable that when a Committee of the kind has been appointed, and has carried out a long and difficult investigation, the recommendations which it finally makes should be treated with indifference and should not be acted upon. If effect should not be given to the views arrived at after the careful consideration given to the whole subject by the Committee, a very heavy responsibility would rest upon the Authorities, and it cannot but be admitted that the Committee ought never to have been appointed if it was not originally intended that its recommendations should be made legally effective. Every sensible person who takes the trouble to study the evidence and the report must come to the conclusion that the enforcement of the recommendations is urgently required upon health considerations alone, and must see that a long‐suffering public is entitled to receive rather more protection than the existing legal enactments can afford. To refrain from legalising the principal recommendations in the face of such evidence and of such a report would almost amount to criminal negligence and folly. We are well aware that the subject is not one that is easily “understanded of the people,” and that the complicated ignorance of various noisy persons who imagine that they have a right to hold opinions upon it is one of the stumbling blocks in the way of reform; but we believe that this ignorance is confined, in the main, to irresponsible individuals, and that the Government Authorities concerned are not going to provide the public with a painful exhibition of incapacity and inaction in connection with the matter. There is some satisfaction in knowing that although the recommendations have not yet passed into law, they can be used with powerful effect in any prosecutions for the offence of food‐drugging which the more enlightened Local Authorities may be willing to institute, since it can no longer be alleged that the question of preservatives is still “under the consideration” of the Departmental Committee, and since it cannot be contended that the recommendations made leave any room for doubt as to the Committee's conclusions.

The purpose of this paper is to describe green technological trajectories in eco‐industrial parks and reveal the effect of the selected environment on the trajectories in China, by means of case studies of the Lubei Group and the Guitang Group.

The paper opted for content analysis from various sources, including annual reports of listed companies, newspapers, web sites and academic articles. It adopts contrast analysis, in order to show the different technological evolution trend and the diversified dynamics of the selected environment.

The study provides the empirical insights about how green technology evolves and affects the evolution of the eco‐industrial park. The green technology development of the Lubei Group forms self‐reinforcing mechanism through learning process, economies of scale in production and network externalities, while that of the Guitang Group is under way. Additionally, the paper discusses how the selected environment affects the green technology, referring to the six factors constituting the selected environment: environmental regulation, financial support, knowledge accumulation, market environment, organizational culture and resource endowment.

The paper analyzes the evolution process, drivers and operational risks of eco‐industrial parks in the perspective of green technological trajectories. Some practical suggestions, such as eco‐industrial parks should put the focus on environmental intellectual property protection, green core competencies construction and green technology transfer strategies are proposed. What is more, the Lubei Group is a large, state‐owned enterprise and the Guitang Group used to be. The contrast analysis tends to disclose the context‐embedded knowledge of eco‐industrial parks development in an emerging market.

The purpose of this paper is to present possible strategic actions that aim to recover the value still remaining in industrial waste.

The research method is a multiple case study. The sample included six Brazilian companies of the footwear, metal-mechanics, pulp and paper, beverages, chemical and food industries. The study investigated the production process, waste generation, internal reuse, the destination of unused waste, difficulties and strategic challenges.

Possible strategies to recover the value remaining in industrial waste are increasing the internal reuse, developing new routes to other industries, reducing the waste generation, increasing the destination to cooperatives or recycling companies, which require studies to understand the legislation and agility in licensing and reducing the logistical cost of the destination.

The study relies on six case studies. Further research shall encompass an entire industry, starting with hypotheses derived from the cases.

The main barriers observed for reuse and recycling are uncertainties and ambiguities in the interpretation of legislation, the difficulty for the environmental licensing for recycling operations, excessive logistics costs for exploration opportunities and the lack of research to reduce the waste generation and to increase the internal reuse.

Waste managed by scavengers’ cooperatives can offer jobs to the people of vulnerable communities.

The study offers robust hypotheses to be tested in a survey on the capacity of a waste management strategy to create competitive advantage in the industry. The study establishes a relationship between waste management and three competitive enablers, compliance, corporate image and green market.

The development of oil shale has become a popular technique in the energy industry in recent years. Although more research attention has been paid to this topic, there are scanty studies on patent portfolios. This study aims to explore this current mainstream technique and the patent portfolios of oil shale developers and investigates the major assignees at present to find the technical development trend of oil shale as a reference for government, policy makers, investors and industrial strategic development.

This study applies correspondence analysis and K-means clustering analysis on data mining and probes into the competitive techniques and strategic groups of the main enterprises in the oil shale industry. In addition, by approval dates, this study analyzes technical directions and the development trends of the current main oil shale enterprises.

The findings show differences in the enterprises regarding technical positions and patent portfolio strategies.

Differential positioning analysis suggests the relative technical advantages of the various enterprises and evaluates the competition among oil shale enterprises.