Recovery and Regeneration of Energy From Wastes

2020 ◽  
pp. 211-225
Author(s):  
Syed Maqbool Geelani ◽  
Moonisa Aslam Dervash ◽  
S. J. A. Bhat
Keyword(s):  
Natural Resources ◽  
Daily Basis ◽  
Economic Importance ◽  
Solid Wastes ◽  
Industrial Wastes ◽  
Agricultural Activities ◽  
Waste Recovery ◽  
Proper Management

Management of domestic and industrial wastes is of great concern to all sections of society. Huge quantities of solid wastes are generated from cities, industries, agricultural activities, markets, and hotels on a daily basis. Inadequate management of these wastes poses a serious risk to environment. Generation of energy from these wastes could be helpful for proper management of waste. Recovery and generation of energy from wastes isn't only of economic importance but also could be a boon for conserving natural resources.

scholarly journals Use of Industrial Wastes in Geotechnical Engineering

2018 ◽  
Vol 1 (4) ◽  
Author(s):  
Nazile Ural
Keyword(s):  
Natural Resources ◽  
Geotechnical Engineering ◽  
Solid Wastes ◽  
Industrial Wastes ◽  
Negative Outcomes ◽  
Production And Consumption ◽  
The World ◽  
Growing Population

The growing population of the world, which leads to increased production and consumption, result in an significent increase in solid wastes. This increase threatens environmental are human heath and harms the economics of countriesTo counteraction these negative outcomes, both the supply of wastes to the country's economy and the less use of natural resources can be considered. In this study, studies focus on the evaluation of industrial wastes in the geotechnical engineering are examined and discussed.

Genotoxicity Screening of Leachates from Solid Industrial Wastes Evaluated with the Allium Test

1997 ◽  
Vol 25 (3) ◽  
pp. 311-321 ◽  
Author(s):  
Peter G. Odeigah ◽  
Jide Ijimakinwa ◽  
Bimbo Lawal ◽  
Rebecca Oyeniyi
Keyword(s):  
Steel Slag ◽  
Settling Tank ◽  
Growth Curves ◽  
Solid Wastes ◽  
Industrial Wastes ◽  
Allium Test ◽  
Chemical Company ◽  
The Mean ◽  
Paint Sludge ◽  
Toxic Industrial Waste

Six solid wastes from the metal industry, from the chemical industry and from the production of pesticides were investigated for their toxic and genotoxic properties by using the Allium test. To simulate environmental conditions and better assess their environmental impact, the solid wastes were leached with water, and the water-extractable micropollutants were lyophilised before screening. The mean root lengths of onions exposed to different concentrations of the leachates were measured, and EC50 values were determined from the growth curves. The EC50 values of the wastes were ranked, in the order: organochlorine pesticide waste, settling tank sludge from a chemical company, paint sludge, lead slag, steel slag and aluminium slag. The leachates were also mitodepressive, and caused significant increases in the frequency of chromosome aberrations. These results demonstrate that the Allium test is a useful screening test for the evaluation and ranking of toxic industrial waste.

Culture of native catfish in Bangladesh.

2020 ◽  
Author(s):  
Md. Fazlul Awal Mollah
Keyword(s):  
Natural Resources ◽  
Exotic Species ◽  
Freshwater Fish ◽  
Fish Production ◽  
Fish Resources ◽  
Proper Management ◽  
Major Constraint

Abstract Bangladesh is rich in freshwater fish resources, with 260 indigenous and 13 exotic species. However, fish production from natural resources has declined due to overexploitation and lack of proper management over the last few decades. As a result, many species, including catfish that were once abundantly available, are facing the threat of extinction. Catfish in Bangladesh have potential for aquaculture. There are some 46 species of catfish in Bangladesh but non-availability of stockable-size fry has been identified as a major constraint towards their farming. However, seven species of catfish have been successfully induced to breed to propagate their seed under artificial conditions.

scholarly journals Ecosystemic Services Linked to Water and Plant diversity of the San José de Chazo-Santa Fe de Galán Region

2021 ◽  
Author(s):  
J. Murillo Conterón ◽  
R. Peña Murillo ◽  
D. Román Robalino
Keyword(s):  
Ecosystem Services ◽  
Natural Resources ◽  
Vascular Plants ◽  
Volumetric Method ◽  
Floristic Diversity ◽  
Agricultural Activities ◽  
Santa Fe ◽  
San Jose ◽  
Importance Value ◽  
Palabras Clave

In the higher part of the Santa Fe de Galán parish, intensive agricultural activities are carried out that cause problems of erosion, disappearance of species of fauna and flora, decrease in water and deterioration of páramo areas due to the advance of the agricultural frontier. These activities present a threat to the sustainability of the San José de Chazo-Santa Fe de Galán region, due to the degradation of its natural resources that directly affect the vital development of 1200 families belonging to this region. The present investigation aims to study ecosystem services linked to water, as well as floristic diversity, for which data was collected and systematized from the Ciénega páramo in the San José de Chazo-Santa Fe de Galán region. According to the data collected on floristic diversity, 29 samples of terrestrial vascular plants were registered, corresponding to 18 families, 26 genera and 29 species; moss and lichen of unidentified family, genus and species were also collected. The highest index of importance value by species and family was presented by the moss with 20.39% and 18.17%, respectively. The average monthly flow during the February–May period observed through the volumetric method was 6.34 L/s. Keywords: capacity, flow, diversity, paramo, ecosystem services, sustainability. Resumen En la parte alta de la Parroquia Santa Fe de Galán se desarrollan actividades agropecuarias intensivas que provocan problemas de erosión, desaparición de especies de fauna y flora, disminución del agua y deterioro de áreas de páramo por el avance de la frontera agrícola. Estas actividades representan una amenaza para la sostenibilidad de la Regional San José de Chazo– Santa Fe de Galán, debido a la degradación de sus recursos naturales que inciden directamente en el desarrollo vital de 1200 familias pertenecientes a esta Regional. La presente investigación tiene como objetivo estudiar los servicios ecosistémicos ligados al agua y diversidad florística, cuyos datos fueron recolectados y sistematizados del páramo de la Ciénega en la Regional San José de Chazo–Santa Fe de Galán. De acuerdo con los resultados de diversidad florística se registró 29 muestras de plantas vasculares terrestres, correspondiente a 18 familias, 26 géneros y 29 especies, también se recolectó musgo y liquen de familia, género y especie no identificados. El mayor índice de valor de importancia por especie y familia lo presentó el musgo con 20,39% y 18,17%, respectivamente. El caudal promedio mensual durante el período febrero – mayo a través del método volumétrico fue de 6,34 L/s. Palabras clave: aforo, caudal, diversidad, páramo, servicios ecosistémicos, sostenibilidad.

Introduction to Solid Waste and Its Management

2015 ◽  
pp. 1-23 ◽  
Author(s):  
Hamidi Abdul Aziz ◽  
Salem S. Abu Amr
Keyword(s):  
Developing Countries ◽  
Municipal Solid Waste ◽  
Solid Waste ◽  
Urban Population ◽  
Solid Wastes ◽  
Economic Prosperity ◽  
Proper Management ◽  
The World ◽  
Msw Composition

Municipal Solid Waste (MSW) disposal has become an increasingly serious problem in many parts of the world. In general, greater economic prosperity and a higher percentage of urban population correspond to a greater amount of solid waste produced. However, less effort has been exerted in the proper management of solid wastes produced by urban dwellers, particularly in developing countries. This chapter introduces the basic MSW rules. MSW composition, production, and collection are also highlighted. Furthermore, the concept of landfilling and waste decomposition is discussed in this chapter.

Effect of steam explosion treatment on enzymatic hydrolysis of palm cake and fiber as solid wastes and natural resources

1994 ◽  
Vol 77 (3) ◽  
pp. 326-328 ◽  
Author(s):  
Susumu Oi ◽  
Keiko Matsuzaki ◽  
Toshio Tanaka ◽  
Masaru Iizuka ◽  
Makoto Taniguchi ◽  
...  
Keyword(s):  
Enzymatic Hydrolysis ◽  
Natural Resources ◽  
Steam Explosion ◽  
Solid Wastes ◽  
Hydrolysis Of

scholarly journals LANDFILLS VOLUME INCREASE WITH REINFORCED SOIL EMBANKMENTS: BASIC THEORY AND CASE STUDIES

Detritus ◽  
2021 ◽  
pp. 113-119
Author(s):  
Daniele Cazzuffi ◽  
Piergiorgio Recalcati
Keyword(s):  
Human Life ◽  
Daily Basis ◽  
Reinforced Soil ◽  
Industrial Wastes ◽  
Volume Increase ◽  
Societal Issues ◽  
Marginal Areas ◽  
Soil Structures ◽  
The Stability ◽  
Social Confrontation

The construction of controlled landfills, either for municipal or industrial wastes, is currently acknowledged worldwide as a 'social need". Indeed, today one of the main societal issues is the identification of an optimal means of disposing of the huge quantities of urban and industrial waste produced on a daily basis by individuals and factories. The task of environmental engineers is to design landfill systems capable to prevent any pollution to the water, the air, and the surrounding fauna and human life. In densely populated countries, the first problem to be solved is the location of the landfill. This social confrontation often leads to locate the landfill not in most geologically and geotechnically suited site, but in marginal areas which finally satisfy all the fighting communities. More and more geosynthetics are used to solve the problems associated with landfills located in marginal areas. The use of geogrids to construct steep reinforced embankments with the aim to increase the volume of wastes that can be disposed and at the same time to increase the stability of the wastes themselves, is getting more and more diffused. The paper describes the use of geosynthetics reinforced soil structures to increase the landfill volume with reinforced soil embankments. Some examples of structures already constructed, either for industrial or municipal wastes landfills, are described.

scholarly journals Rare Earth Elements Biorecovery from Mineral Ores and Industrial Wastes

2021 ◽  
Author(s):  
Laura Castro ◽  
M. Luisa Blázquez ◽  
Felisa González ◽  
Jesús A. Muñoz
Keyword(s):  
Rare Earth ◽  
Rare Earth Elements ◽  
Raw Materials ◽  
Solid Wastes ◽  
Industrial Wastes ◽  
Green Economy ◽  
Soluble Form ◽  
Alternative Source ◽  
Novel Technologies ◽  
Phosphate Solubilizing

Rare earth elements (REEs) are critical raw materials and are attracting interest because of their applications in novel technologies and green economy. Biohydrometallurgy has been used to extract other base metals; however, bioleaching studies of REE mineral extraction from mineral ores and wastes are yet in their infancy. Mineral ores have been treated with a variety of microorganisms. Phosphate-solubilizing microorganims are particularly relevant in the bioleaching of monazite because transform insoluble phosphate into more soluble form which directly and/or indirectly contributes to their metabolism. The increase of wastes containing REEs turns them into an important alternative source. The application of bioleaching techniques to the treatment of solid wastes might contribute to the conversion towards a more sustainable and environmental friendly economy minimizing the amount of tailings or residues that exert a harmful impact on the environment.

scholarly journals Development of Sustainable LSP-Bricks Using Local Industrial Wastes

2021 ◽  
Vol 18 (1) ◽  
pp. 39
Author(s):  
Ani Maslina Saleh ◽  
Mohamad Nidzam Rahmat ◽  
Norsalisma Ismai
Keyword(s):  
Natural Resources ◽  
Industrial Waste ◽  
Target Material ◽  
Green Building ◽  
Industrial Wastes ◽  
Waste Materials ◽  
Infrastructure Development ◽  
Building Components ◽  
Paint Sludge ◽  
The Impact

Uncontrolled infrastructure development may produce excessive carbon emission and scarcity of natural resources. The reuse of waste materials in general promotes material ecology and the cradle-to-cradle concept. The utilisation of industrial waste in the development of advanced materials promoting the extensive research on sustainable building components. The main objective of this research is to investigate the potential of utilising local industrial waste, Solid Waste Fly Ash (SwFA) and Paint Sludge (PS) as target material in replacing laterite soil that is non-renewable natural resources. Standard industrial size bricks were fabricated consist the combination of Laterite Clay, SwFA and PS (LSP) at 50:25:25 ratios. The results for engineering and environmental properties were within the acceptable of engineering standards and performances. This test result suggests potential used of SwFA and Paint Sludge as substitute to clay for unfired brick. This will certainly contribute to the recycling of SwFA and industrial sludge (Paint Sludge andpossibly others) and hence to minimise the impact of these by-product to the environment if send to landfill. The manufacture of unfired bricks can exploit locally available waste materials and can be used in certain applications of low load bearing situation. This research also suggests innovation and enhanced waste management and contribution towards the concept of green building components.  Keywords: Industrial waste, eco-bricks, durability, thermal, acoustic

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