Calculation of the viscosity of glasses and melts based on rocks and industrial waste products

1993 ◽  
Vol 50 (7) ◽  
pp. 300-303
Author(s):  
Yu. L. Belousov ◽  
M. V. Pushkareva
Keyword(s):  
Industrial Waste ◽  
Waste Products

Acaricidal properties of essential oils from agro‐industrial waste products from citric fruit against Tetranychus urticae

2019 ◽  
Vol 143 (7) ◽  
pp. 731-743 ◽  
Author(s):  
Nicolle C. Ribeiro ◽  
Claudio A. G. da Camara ◽  
João P. R. Melo ◽  
Marcílio M. de Moraes
Keyword(s):  
Essential Oils ◽  
Tetranychus Urticae ◽  
Industrial Waste ◽  
Waste Products

Codigestion of manure and industrial organic waste at centralized biogas plants: process imbalances and limitations

2008 ◽  
Vol 58 (7) ◽  
pp. 1521-1528 ◽  
Author(s):  
H. B. Nielsen ◽  
I. Angelidaki
Keyword(s):  
Fatty Acids ◽  
Industrial Waste ◽  
Volatile Fatty Acids ◽  
Biogas Production ◽  
Process Conditions ◽  
Process Data ◽  
Waste Products ◽  
Inadequate Knowledge ◽  
Biogas Plants ◽  
High Concentrations

The present study focuses on process imbalances in Danish centralized biogas plants treating manure in combination with industrial waste. Collection of process data from various full-scale plants along with a number of interviews showed that imbalances occur frequently. High concentrations of ammonia or long chain fatty acids is in most cases expected to be the cause of microbial inhibitions/imbalances while foaming in the prestorage tanks and digesters is the most important practical process problem at the plants. A correlation between increased residual biogas production (suboptimal process conditions) and high fractions of industrial waste in the feedstock was also observed. The process imbalances and suboptimal conditions are mainly allowed to occur due to 1) inadequate knowledge about the waste composition, 2) inadequate knowledge about the waste degradation characteristics, 3) inadequate process surveillance, especially with regard to volatile fatty acids, and 4) insufficient pre-storage capacity causing inexpedient mixing and hindering exact dosing of the different waste products.

scholarly journals Influence of the Type of Aggregate from Industrial Waste on Corrosion Resistance of Modified Fine-Grained Concrete

Buildings ◽  
2021 ◽  
Vol 11 (8) ◽  
pp. 352
Author(s):  
Ljajsjan Zajceva ◽  
Ekaterina Lucyk ◽  
Tat’jana Latypova ◽  
Valerij Latypov ◽  
Pavel Fedorov ◽  
...  
Keyword(s):  
Corrosion Resistance ◽  
Industrial Waste ◽  
Raw Materials ◽  
Mineral Wool ◽  
Concrete Mixture ◽  
Green Technologies ◽  
Widespread Application ◽  
Waste Products ◽  
Natural Resource Conservation ◽  
Use Of Resources

The development and implementation of “green” technologies in the construction sector, which ensure natural resource conservation, reduce harmful emissions and provide utilization of industrial waste, are key issues in material engineering of the XXI century. Extensive research has been devoted to solving these issues, including research in the field of concrete science. Still, the issue of developing concrete compositions with increased corrosion resistance remains much less studied. At the same time, reactive aggregates from industrial waste can have positive effect on durability of concrete, and the best result can be achieved by means of modification of a concrete mixture with highly effective additives. The article presents the research data in two lines—the study of applicability of reactive aggregates from waste products of nonmetallic and ceramic industries, mineral wool production and concrete scrap for production of corrosion-resistant concretes, as well as the assessment of possibility of Portland cement quantity reduction in a concrete mixture on local raw materials due to the introduction of additives based on polycarboxylates. The article presents the research evidence of the effect of dust and clay particles content on the quality of concrete with a polycarboxylate additive. The article describes the studies of corrosion resistance of concrete samples based on production wastes in sulfate environments and under the influence of carbon dioxide. The developed concrete compositions with waste use can be recommended for widespread application, rational use of resources, and production of durable high-quality concretes. The application of additives based on polycarboxylates makes it possible to produce concretes with the reduction of cement consumption in the mixture by 10–20% and decrease in the mode of thermo-wet treatment by two times.

scholarly journals Single Cell Oil Production from Waste Biomass: Review of Applicable Industrial By-Products

2019 ◽  
Vol 23 (2) ◽  
pp. 325-337
Author(s):  
Kriss Spalvins ◽  
Ilze Vamza ◽  
Dagnija Blumberga
Keyword(s):  
Single Cell ◽  
Industrial Waste ◽  
Essential Fatty Acids ◽  
Production Costs ◽  
Industrial Wastes ◽  
Biodiesel Production ◽  
Waste Materials ◽  
Single Cell Oil ◽  
Waste Products ◽  
By Products

Abstract Single cell oil (SCO) is an attractive alternative source of oil, which, depending on the fatty acid composition, can be used as a feedstock for biodiesel production, as an ingredient for pharmaceuticals or as a source of essential fatty acids for human and animal consumption. However, the use of SCO is limited due to use of relatively expensive food or feed products in the cultivation of SCO producing microorganisms. In order to reduce SCO production costs, the use of cheaper feedstock such as biodegradable agro-industrial wastes are necessary. At the same time, the microbial treatment of biodegradable wastes ensures the neutralization of environmentally harmful compounds and reduces the negative impact on the environment. Oleaginous microorganisms are capable of fermenting a variety of industrial by-products, waste products and wastewaters, however further discussion on properties of the waste materials is necessary to facilitate the selection of the most appropriate waste materials for SCO production. Thus, this review compares various industrial waste products that can be used as cheap feedstock for the cultivation of SCO producing microorganisms. Industrial waste products, by-products and wastewaters are compared according to their global availability, current use in competing industries, required pre-fermentation treatments, oleaginous microorganism cell concentrations and SCO yields.

Agro-industrial Waste Products as Mycotoxin Biosorbents: A Review of in Vitro and in Vivo Studies

2021 ◽  
pp. 1-17
Author(s):  
Kateryn Aguilar-Zuniga ◽  
V. Felipe Laurie ◽  
Rodrigo Moore-Carrasco ◽  
Bryan Ortiz-Villeda ◽  
Verónica Carrasco-Sánchez
Keyword(s):  
Industrial Waste ◽  
In Vivo Studies ◽  
Waste Products
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