The Economics of Energy Recovery From Industrial Waste Incineration

1979 ◽  
Vol 101 (4) ◽  
pp. 260-268 ◽  
Author(s):  
W. K. Lombard

The equipment technology to incinerate and in turn recover energy from industrial wastes is reasonably well documented via the manufacturers of the equipment involved. The difficult question for the industrial plant manager is whether the capital investment and operating costs are economically justified. This paper will review the styles of incineration and heat recovery systems which are typically applied to industrial wastes – solids, liquids, and gases – and then assess the quantity and type of waste materials which are needed to make the cost of installing that equipment economically justified.

CORROSION ◽  
1954 ◽  
Vol 10 (9) ◽  
pp. 273-278
Author(s):  
AARON WACHTER

Abstract Every business can benefit from reduction of its losses due to corrosion. Awareness of all possible sources of such losses is essential. Unnecessary acceptance of losses is common from chronic corrosion which is tolerated as established custom, and from hidden or indirect effects of corrosion. The importance of corrosion damage is not always proportional to the volume of metal affected. The functional aspects of corrosion are listed. Analysis is made of the ways in which corrosion enters into the cost of doing business. Explanations are given of the direct and indirect ways corrosion may effect capital investment, operating costs, product sales, maintenance costs, overhead costs and market competitive condition of and company.


2021 ◽  
Author(s):  
Jun Long Zhang

The feasibility of a novel total energy recovery ventilator (HERV) was studied, through the use of an Excel-based screening tool developed for cost analysis, and through TRNSYS simulations for performance analysis. Cost analysis indicated that the HERV almost always outperformed the conventional systems, whereas its attractiveness could be limited by its high capital investment. Simulation results indicated that the counter-flow HERV provided better control of house humidity towards the setpoint, in the meantime, minimized the annual energy use. The performance of heat recovery (HRV) and energy recovery (ERV) ventilators was investigated side-by-side at the Archetype Sustainable Twins-House located in Toronto, Canada. The ERV sensible efficiency ranged from 76.4% to78.5% at an outdoor temperature of -20°C and 5°C respectively, while the HRV efficiency ranged from 91.0% to 95.0% at -16.6°C and 0.7°C respectively. Freezing caused a dramatic drop in the efficiency that was found to be as low as 50%.


Author(s):  
Abdullah Mohammed El Mahdi ◽  
Hamidi Abdul Aziz

The diversity of agro industrial wastes makes them an attractive group of organic wastes for potential use in a wide variety of industrial and biotechnological applications. The new stimulating development in this current area of research approaches in combination with the technologies of large-scale production and biotechnology engineering, agro industrial wastes will be economically successful materials of the future. Increased public awareness of issues related to hydrocarbon pollution strongly influences the development of technologies that speed up cleaning hazardous contaminants. The cost of biodegradation technology and the low bioavailability including mass transfer limitations of hydrocarbons, especially those recalcitrant components, from various mediums into the aqueous phase for effective enzyme-based microbial biodegradation still constitute major challenges. Sustainable replacement of traditional microbiological media with agroindustrial wastes as substrates for biosurfactant production holds great potential; thereby decrease numerous management problems of handling industrial waste. These organic nitrogen-rich nutrients (biostimulation) are an effective means to enhance the bioremediation process and widely available as wastes in the environment; hence, they can serve as “natural waste-to-environmental clean-up.” However, current chapter have focused on the combined use of biosurfactants and enzymes produced from renewable resources such as agro-industrial waste, through assisted biostimulation and bioaugmentation, for hydrocarbon biodegradation.


2021 ◽  
Author(s):  
Jun Long Zhang

The feasibility of a novel total energy recovery ventilator (HERV) was studied, through the use of an Excel-based screening tool developed for cost analysis, and through TRNSYS simulations for performance analysis. Cost analysis indicated that the HERV almost always outperformed the conventional systems, whereas its attractiveness could be limited by its high capital investment. Simulation results indicated that the counter-flow HERV provided better control of house humidity towards the setpoint, in the meantime, minimized the annual energy use. The performance of heat recovery (HRV) and energy recovery (ERV) ventilators was investigated side-by-side at the Archetype Sustainable Twins-House located in Toronto, Canada. The ERV sensible efficiency ranged from 76.4% to78.5% at an outdoor temperature of -20°C and 5°C respectively, while the HRV efficiency ranged from 91.0% to 95.0% at -16.6°C and 0.7°C respectively. Freezing caused a dramatic drop in the efficiency that was found to be as low as 50%.


Author(s):  
John L. Rose

Never have conditions been more favorable for the development of new waste-to-energy projects. The record of operating waste-to-energy plants has dispelled all of the objections that had been raised by environmental activists with respect to emissions and residue toxicity. The economics have become positive due to the rising cost of disposal at distant landfills and the increased value of the recovered energy due to sharp increases in the cost of fossil fuels. The threat of global warming and the recognition of the need to reduce reliance on imported fuel sources have made the public aware of the need to make full use of all domestic sources of energy. Regardless of legal definitions, energy from wastes is renewable energy and established technology. Waste-to-energy plants are even now providing more energy then other renewable sources such as biomass, wind, and direct solar combined. What is needed now for the industry to look at the existing technology to see how it can optimize energy recovery, both in capital and operating costs, without compromising environmental performance. Above all, we need a major push to make our case with the public and the politicians who represent it to convince them that waste-to- energy is not only good economics, but good environmental policy as well.


2018 ◽  
Vol 35 (02) ◽  
pp. 159-169 ◽  
Author(s):  
Ha Nyoung Yoo ◽  
Young Jae Ko ◽  
Young Hyun Kwon ◽  
Tae Wan Jeon ◽  
Young Kee Lee ◽  
...  

1960 ◽  
Vol 17 (6) ◽  
pp. 815-870
Author(s):  
W. F. Doucet

This report presents the results of an economic survey of the herring fishery of Charlotte County, New Brunswick, conducted in 1957 and 1958. It contains: (a) a detailed account of the capital investment and income position of the fishermen who were engaged in the herring fishery during the years 1956 and 1957; (b) some evaluation of the economic effects which the construction of hydro-electric power dams in Passamaquoddy Bay would have on the herring fishery of the area.Except for a small complement of men employed on purse seiners, draggers and a few other modernized fishing craft, the fishing activity of Charlotte County fishermen is largely confined to inshore operations. As a result, the primary fishing industry is not highly capitalized. Average net incomes are also low compared with those prevailing in other industries, even with those derived from a number of fisheries elsewhere in the Maritime Provinces. Incomes from the weir fishery are particularly uncertain, in view of the wide fluctuation in yearly catches and the high, rigid operating costs. In contrast with weir fishing, purse seining has proven to be an efficient method of fishing in the region, and holds considerable promise for the improvement of earnings in the herring fishery.It is expected that the construction of the proposed power dams would add to the cost of maintaining and operating weirs in Passamaquoddy Bay, thereby reducing returns to owners and fishermen in this segment of the industry. In view of the low earnings now derived from weir fishing in certain sections of the area, it is likely that a number of weir owners would not continue to maintain their weir investments if the power dams were built.


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