Salt slag recycled by-products in high insulation alternative environmentally friendly cellular concrete manufacturing

2020 ◽  
Vol 231 ◽  
pp. 117114 ◽  
Author(s):  
A. Font ◽  
L. Soriano ◽  
J. Monzó ◽  
J.C.B. Moraes ◽  
M.V. Borrachero ◽  
...  
Keyword(s):  
Environmentally Friendly ◽  
High Insulation ◽  
Salt Slag ◽  
By Products ◽  
Cellular Concrete

scholarly journals Microbial Transglutaminase as a Tool to Improve the Features of Hydrocolloid-Based Bioplastics

2020 ◽  
Vol 21 (10) ◽  
pp. 3656 ◽  
Author(s):  
C. Valeria L. Giosafatto ◽  
Antonio Fusco ◽  
Asmaa Al-Asmar ◽  
Loredana Mariniello
Keyword(s):  
Value Added ◽  
Environmentally Friendly ◽  
Biological Properties ◽  
Microbial Transglutaminase ◽  
Plant Origin ◽  
Technological Characteristics ◽  
Microbial Enzyme ◽  
The Matrix ◽  
Isopeptide Bonds ◽  
By Products

Several proteins from animal and plant origin act as microbial transglutaminase substrate, a crosslinking enzyme capable of introducing isopeptide bonds into proteins between the aminoacids glutamines and lysines. This feature has been widely exploited to modify the biological properties of many proteins, such as emulsifying, gelling, viscosity, and foaming. Besides, microbial transglutaminase has been used to prepare bioplastics that, because made of renewable molecules, are able to replace the high polluting plastics of petrochemical origin. In fact, most of the time, it has been shown that the microbial enzyme strengthens the matrix of protein-based bioplastics, thus, influencing the technological characteristics of the derived materials. In this review, an overview of the ability of many proteins to behave as good substrates of the enzyme and their ability to give rise to bioplastics with improved properties is presented. Different applications of this enzyme confirm its important role as an additive to recover high value-added protein containing by-products with a double aim (i) to produce environmentally friendly materials and (ii) to find alternative uses of wastes as renewable, cheap, and non-polluting sources. Both principles are in line with the bio-economy paradigm.

scholarly journals Ferrates (iron(VI) and iron(V)): Environmentally friendly oxidants and disinfectants

2005 ◽  
Vol 3 (1) ◽  
pp. 45-58 ◽  
Author(s):  
Virender K. Sharma ◽  
Futaba Kazama ◽  
Hu Jiangyong ◽  
Ajay K. Ray
Keyword(s):  
Potential Role ◽  
Ph Dependence ◽  
Environmentally Friendly ◽  
Water And Wastewater Treatment ◽  
Toxic Compound ◽  
Treatment Processes ◽  
Water And Wastewater ◽  
By Products ◽  
Multifunctional Properties

Iron(VI) and iron(V), known as ferrates, are powerful oxidants and their reactions with pollutants are typically fast with the formation of non-toxic by-products. Oxidations performed by Fe(VI) and Fe(V) show pH dependence; faster rates are observed at lower pH. Fe(VI) shows excellent disinfectant properties and can inactivate a wide variety of microorganisms at low Fe(VI) doses. Fe(VI) also possesses efficient coagulation properties and enhanced coagulation can also be achieved using Fe(VI) as a preoxidant. The reactivity of Fe(V) with pollutants is approximately 3–5 orders of magnitude faster than that of Fe(VI). Fe(V) can thus be used to oxidize pollutants and inactivate microorganisms that have resistance to Fe(VI). The final product of Fe(VI) and Fe(V) reduction is Fe(III), a non-toxic compound. Moreover, treatments by Fe(VI) do not give any mutagenic/carcinogenic by-products, which make ferrates environmentally friendly ions. This paper reviews the potential role of iron(VI) and iron(V) as oxidants and disinfectants in water and wastewater treatment processes. Examples are given to demonstrate the multifunctional properties of ferrates to purify water and wastewater

scholarly journals Effect of oxygen on power frequency breakdown voltage and decomposition characteristics of the C5F10O/N2/O2 gas mixture

RSC Advances ◽  
2019 ◽  
Vol 9 (33) ◽  
pp. 18963-18970 ◽  
Author(s):  
Yue Zhang ◽  
Xiaoxing Zhang ◽  
Yi Li ◽  
Yalong Li ◽  
Qi Chen ◽  
...  
Keyword(s):  
Breakdown Voltage ◽  
Carbon Deposition ◽  
Environmentally Friendly ◽  
Gas Mixture ◽  
Power Frequency ◽  
New Type ◽  
High Insulation ◽  
Effect Of Oxygen

C5F10O gas mixture is a SF6 potential substitute with high insulation strength and is a new type of environmentally friendly insulating gas. By adding oxygen to C5F10O gas mixture, insulation strength can be improved and carbon deposition can be suppressed.

scholarly journals Formation of environmentally friendly chloroorganic compounds technology by sewage and by-products utilization

2007 ◽  
Vol 9 (3) ◽  
pp. 118-121 ◽  
Author(s):  
Jerzy Myszkowski ◽  
Eugeniusz Milchert ◽  
Waldemar Paździoch ◽  
Robert Pełech
Keyword(s):  
Waste Water ◽  
Activated Carbon ◽  
Vinyl Chloride ◽  
Propylene Oxide ◽  
Environmentally Friendly ◽  
Complete Removal ◽  
Purification Method ◽  
Water Waste ◽  
By Products ◽  
Removal And Recovery

Formation of environmentally friendly chloroorganic compounds technology by sewage and by-products utilization The processes presented in the study enables the separation and disposal of the chloroorganic compounds as by-products from the vinyl chloride plant by using the dichlorethane method and also from the production of propylene oxide by the chlorohydrine method. The integrated purification method of steam stripping and adsorption onto activated carbon allows a complete removal and recovery of the chloroorganic compounds from waste water. Waste distillation fraction is formed during the production of vinyl chloride. 1,1,2-trichloroethane separated from the above fraction, can be processed to vinylidene chloride and further to 1,1,1-trichloroethane. 2,3-Dichloropropene, 2-chloroallyl alcohol, 2-chloroallylamine, 2-chlorothioallyl alcohol or bis(2-chloroallylamine) can be obtained from 1,2,3-trichloropropane. In the propylene oxide plant the waste 1,2-dichloropropane is formed, which can be ammonolysed to 1,2-diaminopropane or used for the production of β-methyltaurine. Other chloroorganic compounds are subjected to chlorinolysis which results in the following compounds: perchloroethylene, tetrachloromethane, hexachloroethane, haxachlorobutadiene and hexachlorobenzene. The substitution of the milk of lime by the soda lye solution during the saponification of chlorohydrine eliminates the formation of the CaCl2 waste.

scholarly journals Analysis of methods for processing and using by-products of the technological process of asphalt concrete component manufacturing

2021 ◽  
pp. 76-80
Author(s):  
V. V. Ozeryanskaya ◽  
◽  
A. A. Repinskaya ◽  
R. R. Lazurenko ◽  
M. Y. Seregin ◽  
...  
Keyword(s):  
Technological Process ◽  
Waste Disposal ◽  
Asphalt Concrete ◽  
Negative Impact ◽  
Environmentally Friendly ◽  
Mineral Filler ◽  
Optimal Method ◽  
Component Manufacturing ◽  
By Products ◽  
Concrete Component

Introduction. Currently, the problem of disposal and recycling of industrial waste is extremely relevant. The article analyzes the economically feasible and environmentally friendly ways of the processing or using waste generated during the production of the asphalt concrete component — enriched mineral filler. Problem Statement. The aim of the study was to find the most economically feasible and environmentally friendly ways to process or use waste generated during the production of enriched mineral filler at one of the enterprises of the Rostov region. Theoretical Part. The paper considers the composition of the enriched mineral filler as the main product of production and a source of by-products, the technological process of its manufacture, as well as the composition of the resulting by-products to be disposed. Based on the results of these studies, the assessment of probable ways of waste disposal was performed and the optimal method of recycling was selected. Conclusion. The choice of the most appropriate method of waste disposal from the production of mineral filler allows you to reduce the total amount of waste at the enterprise and significantly reduce the negative impact of the enterprise on the environment. To implement the proposed technology of mineral waste disposal, the relevant technical conditions and regulations are being developed.

scholarly journals Applications of Electrolyzed Water as a Sanitizer in the Food and Animal-By Products Industry

Processes ◽  
2020 ◽  
Vol 8 (5) ◽  
pp. 534 ◽  
Author(s):  
Juan C. Ramírez Orejel ◽  
José A. Cano-Buendía
Keyword(s):  
Foodborne Pathogens ◽  
Food Industry ◽  
New Technologies ◽  
Environmentally Friendly ◽  
Quality Characteristics ◽  
Food Demand ◽  
Animal Products ◽  
Electrolyzed Water ◽  
And Storage ◽  
By Products

Food demand is increasing every year and, usually animal-derived products are generated far from consumer-places. New technologies are being developed to preserve quality characteristics during processing and transportation. One of them is electrolyzed water (EW) that helps to avoid or decrease the development of foodborne pathogens, or losses by related bacteria. Initially, EW was used in ready-to-eat foods such as spinach, lettuce, strawberries, among others; however, its application in other products is under study. Every product has unique characteristics that require an optimized application of EW. Different sanitizers have been developed; unfortunately, they could have undesirable effects like deterioration of quality or alterations in sensory properties. Therefore, EW is gaining popularity in the food industry due to its characteristics: easy application and storage, no corrosion of work surfaces, absence of mucosal membrane irritation in workers handling food, and it is considered environmentally friendly. This review highlights the advantages of using EW in animal products like chicken, pork, beef, eggs and fish to preserve their safety and quality.

scholarly journals Mechanochemistry of supramolecules

2019 ◽  
Vol 15 ◽  
pp. 881-900 ◽  
Author(s):  
Anima Bose ◽  
Prasenjit Mal
Keyword(s):  
Supramolecular Chemistry ◽  
Alternative Energy ◽  
Environmentally Friendly ◽  
Environmental Hazard ◽  
Energy Sources ◽  
Time Saving ◽  
Alternative Energy Sources ◽  
By Products ◽  
Significant Attention

The urge to use alternative energy sources has gained significant attention in the eye of chemists in recent years. Solution-based traditional syntheses are extremely useful, although they are often associated with certain disadvantages like generation of waste as by-products, use of large quantities of solvents which causes environmental hazard, etc. Contrastingly, achieving syntheses through mechanochemical methods are generally time-saving, environmentally friendly and more economical. This review is written to shed some light on supramolecular chemistry and the synthesis of various supramolecules through mechanochemistry.

scholarly journals Advances in plant materials, food by-products, and algae conversion into biofuels: use of environmentally friendly technologies

2019 ◽  
Vol 21 (12) ◽  
pp. 3213-3231 ◽  
Author(s):  
Mohammad Hassan Kamani ◽  
Ismail Eş ◽  
Jose M. Lorenzo ◽  
Fabienne Remize ◽  
Elena Roselló-Soto ◽  
...  
Keyword(s):  
Human Activity ◽  
Environmentally Friendly ◽  
Green Technologies ◽  
Plant Materials ◽  
Clean Fuels ◽  
By Products

Green technologies have emerged as useful tools for the generation of clean fuels with the potential to minimize the effect of human activity on the environment.

scholarly journals Production of bacterial cellulose from glycerol: the current state and perspectives

2021 ◽  
Vol 8 (1) ◽  
Author(s):  
Peteris Zikmanis ◽  
Sergejs Kolesovs ◽  
Maija Ruklisha ◽  
Pavels Semjonovs
Keyword(s):  
Bacterial Cellulose ◽  
Current Knowledge ◽  
Raw Materials ◽  
Environmentally Friendly ◽  
Medium Composition ◽  
Biofuel Production ◽  
Productivity Data ◽  
Current State ◽  
Pre Treatment ◽  
By Products

AbstractCurrent research in industrial microbiology and biotechnology focuses on the production of biodegradable microbial polymers as an environmentally friendly alternative to the still dominant fossil hydrocarbon-based plastics. Bacterial cellulose (BC) is important among microbial polymers due to its valuable properties and broad applications in variety of fields from medical to industrial technologies. However, the increase in BC production and its wider deployment is still limited by high costs of traditionally used raw materials. It is therefore necessary to focus on less expensive inputs, such as agricultural and industrial by-products or waste including the more extended use of glycerol. It is the environmentally harmful by-product of biofuel production and reducing it will also reduce the risk of environmental pollution. The experimental data obtained so far confirm that glycerol can be used as the renewable carbon source to produce BC through more efficient and environmentally friendly bioprocesses. This review summarizes current knowledge on the use of glycerol for the production of commercially prospective BC, including information on producer cultures, fermentation modes and methods used, nutrient medium composition, cultivation conditions, and bioprocess productivity. Data on the use of some related sugar alcohols, such as mannitol, arabitol, xylitol, for the microbial synthesis of cellulose are also considered, as well as the main methods and applications of glycerol pre-treatment briefly described.

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