An Overview of the Plant Fibres in the Development of Ecologically Sustainable Sanitary Napkins for the Green Economy

2021 ◽  
Vol 23 (08) ◽  
pp. 161-172
Author(s):  
Srikavi Anbalagan ◽  
◽  
Mekala. M ◽  
Keyword(s):  
Raw Material ◽  
Green Economy ◽  
Environmental Friendliness ◽  
Suitable Alternative ◽  
Current Review ◽  
Plastic Materials ◽  
Global Issue ◽  
Sanitary Pads ◽  
Ecologically Sustainable ◽  
Innovative Techniques

The issue of biodegradability must be addressed when considering the protection of our environment. Plastic materials are used in commercially accessible sanitary napkins. One of the primary issues with sanitary napkins is that they are non-biodegradable and can be found in landfills for up to 800 years. Increased menstrual waste has sparked calls for a revolution and the development of innovative techniques for addressing the global issue of commercial sanitary pads’ non-biodegradability. Plant fibres are a more environmentally friendly alternative to commercially supplied pads. Plant fibres are lignocellulosic fibres composed primarily of cellulose, hemicelluloses, lignin, pectin, and other polymers. In terms of abundance, biodegradability, non-irritant and chemical-free, easily renewable and environmental friendliness, plant fibres represent a suitable alternative to commercial sanitary napkins. The current review focuses on plant fibres such as jute, bamboo, bananas, and kenaf as an alternative raw material in the manufacture of sanitary napkins.

scholarly journals THE USE OF ENVIRONMENTAL WASTE IN THE ISSUE OF GREEN ECONOMY OF THE REGIONS

2021 ◽  
Author(s):  
M. Opara ◽  
Natalia Azarova
Keyword(s):  
Carbon Dioxide ◽  
Alternative Energy ◽  
Raw Materials ◽  
Human Life ◽  
Raw Material ◽  
Green Economy ◽  
Energy Sources ◽  
Alternative Energy Sources ◽  
Solid Liquid ◽  
State Of The Environment

Currently, an urgent issue is the preservation of the environment, the cyclical use of waste for the production of new products, the preservation and multiplication of the planet’s natural resources. After all, the quality of life of each person directly depends on the state of the environment and the factors that affect its preservation. These factors are an integral part of the development of a green economy. This article discusses the possibility of producing alternative energy sources, such as biofuels of three generations.The first generation is solid, liquid, and gaseous biofuels. Second-generation fuel is obtained from the biomass of plant and animal material residues, or grown crops. As an example, such a type of fuel as biogas, which consists of carbon dioxide and methane, and with its further processing, namely the separation of carbon dioxide, you can get biomethane. In the same way, such fuels as biodiesel and bioethanol can be obtained from the biological mass. And the most unusual raw material for the production of third-generation fuel is biofuel from algae. Unfortunately, the development of the green economy in Russia is taking slow steps, but at present this issue is being paid more attention. The development of technologies for obtaining alternative energy sources will allow us to produce not only new types of energy, but also to preserve the environment of our priceless planet, through the use of raw materials and waste that are not in demand in everyday human life.

scholarly journals Green Synthesis of Lutein-Based Carbon Dots Applied for Free-Radical Scavenging within Cells

Materials ◽  
2020 ◽  
Vol 13 (18) ◽  
pp. 4146 ◽  
Author(s):  
Dian Yang ◽  
Li Li ◽  
Lei Cao ◽  
Zhimin Chang ◽  
Qian Mei ◽  
...  
Keyword(s):  
Carbon Dots ◽  
Water Solubility ◽  
Synthesis Method ◽  
Radical Scavenging ◽  
The Body ◽  
Raw Material ◽  
High Yield ◽  
Environmental Friendliness ◽  
Problems In Living ◽  
Living Organisms

Reactive oxygen species (ROS) in the body play an important role in various processes. It is well known that harmful high levels of ROS can cause many problems in living organisms in a variety of ways. One effective way to remove intracellular ROS is to use reducing materials that can enter the cell. Herein, we developed a strong reducing carbon nano-dot from a natural product, lutein, as an initial raw material. This is a hydrothermal synthesis method with the advantages of simplicity, high yield, mild reaction conditions, and environmental friendliness. The prepared carbon dots exhibit bright blue fluorescence, and have good water solubility and biocompatibility. In particular, the carbon dots can easily enter the cell and effectively remove ROS. Therefore, the carbon dots are thought to protect cells from oxidative damage by high levels of ROS.

COMPARATIVE ANALYSIS OF ALTERNATIVE FUELS FOR VEHICLES

2015 ◽  
Vol 2 (2) ◽  
pp. 373-378 ◽  
Author(s):  
Лемешева ◽  
E. Lemesheva ◽  
Кочегаров ◽  
D. Kochegarov ◽  
Тихомиров ◽  
...  
Keyword(s):  
Comparative Analysis ◽  
Vegetable Oils ◽  
Alternative Fuels ◽  
Low Cost ◽  
Raw Material ◽  
Ecological Situation ◽  
Suitable Alternative ◽  
Material Resources ◽  
Motor Fuels ◽  
Harmful Substances

The growing demand for alternative motor fuels is dictated by aggravating energy and environmental problems. In article the analysis about possibility of use of alternative types of fuel for vehicles is carried out. Application of suitable alternative types of fuel will allow to improve in the future an economic and ecological situation in the country. Alternative fuel has to conform to the following requirements: to have necessary raw material resources, low cost, not to worsen operation of the engine, it is as little as possible to throw out harmful substances, whenever possible to be combined with the developed system of supply with fuel, etc. It is shown that natural gas and fuels derived from vegetable oils are most economical to use

scholarly journals Consequences of accelerated Global Warming on nature and economy and the remedies for Global Green Economy

2013 ◽  
Vol 3 (1) ◽  
Author(s):  
Navneet Gera
Keyword(s):  
Global Warming ◽  
Human Resource ◽  
Co2 Emission ◽  
Global Scale ◽  
Green Economy ◽  
Oil Consumption ◽  
Root Cause ◽  
Global Issue ◽  
The Impact

Abstract: Global warming is the problem of 21st century for the globe. The root cause of problem is heavy oil consumption, deforestation, CO2 emission due to human and industrial activities and the rising threats of globalization like terrorism etc. This paper will address the impact of global warming on the Industries, human resource and the flora and fauna. The human resource has made a significant change in the current environment with the collective use of industries and the other GHG (Green House Gases) causing disturbance in the environment. In addition, the human resource is thinking on this issue, as it has become a global issue. There have been initiatives taken on Global Scale when Kyoto protocol agreement was signed which is in continuation till 2012. There have been further initiatives when the Ministers from across the global met at Copenhagen but at the end of the end there have been no discrete plans for Global Warming. Though it is a problem but how certainly can we manage this is more important. Global warming solutions can reduce the amount of heat-trapping gases that we emit into the atmosphere. Among the solutions, is a model G2I3 addressed in this paper and the role of every Individual which can make a great impact on the environmental problems.

scholarly journals Bioremediation of Nitrite from Brackishwater Using Lignocellulosic Agricultural Waste – Bagasse

2007 ◽  
Vol 19 (4) ◽  
Author(s):  
KISHORE K. KRISHNANI ◽  
V. PARIMALA ◽  
B.P. GUPTA ◽  
I.S. AZAD ◽  
M.S. SHEKHAR
Keyword(s):  
Low Cost ◽  
Agricultural Waste ◽  
Paper Industry ◽  
Value Added ◽  
Raw Material ◽  
Suitable Alternative ◽  
Water Characteristics ◽  
Nitrite Removal ◽  
Sugar Mills ◽  
Aquaculture Water

Bagasse is a complex native lignocellulosic agricultural waste left after extraction of juice from sugar cane in sugar mills. Bagasse is commonly used as a captive boiler fuel aside from its minor use as a raw material in the paper industry and in low-value products. There remains an ever present need to convert this material to useful value added products, which is an objective of our continued research. The aim of the present study is to investigate four different materials prepared from bagasse for the removal of nitrite from shrimp farm brackishwater (salinity 27±1 ppt) in laboratory condition. The experimental results showed that nitrite removal is effective using bagasse materials with the dose of 1 and 3 g•L-1. Raw bagasse fiber was found to be most effective followed by dried bagasse powder, which can be attributed to the rapid increase in bacterial counts and periphytic growth combined with ion exchange mechanism. Effect of bagasse materials on other water characteristics such as pH, salinity, alkalinity, dissolved oxygen, ammonia and phosphates has also been studied. The very low cost of lignocellulosic materials is a real advantage that renders it as a suitable alternative for the remediation of nitrite from aquaculture water.

scholarly journals Introduction of research on sustainable and environmentally friendly wood-based materials

Impact ◽  
2020 ◽  
Vol 2020 (4) ◽  
pp. 73-75
Author(s):  
Kenji Umemura
Keyword(s):  
Citric Acid ◽  
Lignocellulosic Biomass ◽  
Carbon Fixation ◽  
Environmentally Friendly ◽  
Agricultural Wastes ◽  
The Other ◽  
Raw Material ◽  
Simple Preparation ◽  
Global Issue ◽  
Sustainable Materials

Wood-based materials are used for construction and furniture etc. The demand is expected to increase due to population growth and economic development. Wood-based materials are considered as sustainable material because wood is the main raw material. However, adhesives are indispensable when manufacturing those, and almost wood adhesives are made from chemicals derived from fossil resources. In recent years, breaking away from dependence on fossil resources has become an important global issue. One of the purposes of this work is to develop bio-based adhesives with simple preparation, low dependence of fossil resources and high adhesiveness. Novel bio-based adhesives using citric acid and/or sucrose are being researched. On the other hand, considering significant decrease of global forest area, alternative raw components for wood-based materials is desperately needed in the future. Un-utilized lignocellulosic biomass such as agricultural wastes would be promising for these. The utilization of agricultural wastes also contributes to carbon fixation of lignocellulosic biomass. Now, researchers at the Laboratory of Sustainable Materials are interested in developing new wood-based materials that combine agricultural wastes with bio-based adhesives. These efforts will make wood-based materials more sustainable and environmentally friendly.

scholarly journals Refining of manganese alloys with high content of phosphorus obtained in electrometallurgical dephosphoration of manganese ores

2019 ◽  
pp. 19
Author(s):  
Velichko Olekssandr ◽  
Myanovska Ya ◽  
Karbovnichek M ◽  
Du Yunshen Du ◽  
Mishalkin A ◽  
...  
Keyword(s):  
Manganese Content ◽  
Refining Process ◽  
Raw Material ◽  
Manganese Alloy ◽  
Environmental Friendliness ◽  
Low Phosphorus ◽  
Refining Time ◽  
The Cost ◽  
Iron Scale ◽  
Sodium Orthosilicate

The expediency of carrying out the process of dephosphorization of the alloy in one stage using a briquetted mixture, which includes iron scale, lime, bauxite and sodium orthosilicate in their following ratio, wt.%: Iron scale - 52.0… 57.4; lime - 6.2… 8.6; bauxite - 4.5… 6.2; sodium orthosilicate - 30.5… 30.4. The achieved degree of dephosphorization of the accompanying manganese alloy is about 70%, the manganese content in the alloy - 64.6%. The implementation of dephosphorization according to the developed method allowed to increase the rate of throughput of manganese from the raw material. Exclusion from the composition of materials for dephosphorization of fluoride compounds increases the environmental friendliness of the refining process. In the real conditions of production in the process of depho-?phorization of the associated alloy may use different processing schemes and conditions of its implementation. In the formation of a concomitant alloy with a temperature of ~ 1300oC in the production of low-phosphorus slag, in order to minimize the cost of dephosphorization of the alloy using existing shop equipment, the refining process can be implemented according to the following scheme and purging the bath with argon, the dephosphorization process scheme may include the following operations: adding 100% pre-briquetted SHUS, to the bottom of the bucket, trans-?orting the bucket to the installation of the oven-bucket, where the optimum temperature will be maintained during refining. This will increase the refining time and, consequently, greater completeness of the refining process .: Key words: highly phosphorous concomitant alloy, slag-forming mixture, ladle furnace, completeness of depho-?phorization.

scholarly journals Diversité Variétale, Qualité Et Utilisation Du Maïs (Zea Mays) En Afrique De l’Ouest : Revue Critique

2016 ◽  
Vol 12 (18) ◽  
pp. 197 ◽  
Author(s):  
A. J. Semassa ◽  
S.W. Padonou ◽  
V.B. Anihouvi ◽  
N.H. Akissoé ◽  
A. Adjanohoun ◽  
...  
Keyword(s):  
Zea Mays ◽  
West Africa ◽  
Nutritional Quality ◽  
Raw Material ◽  
Chemical Components ◽  
Human Consumption ◽  
Current Review ◽  
Technological Characteristics ◽  
The World ◽  
Nutritional Aspect

Maize (Zea mays) is a cereal cultivated through all the region of the world. Its constitutes one of the cereals the most used for human consumption. The current review focused on the diversity, the nutritional quality and the forms of use of maize in West Africa region. The review allowed to notice that more than twenty varieties of maize were cultivated in Bénin and in the sub-region. With regard to nutritional aspect, those different varieties of maize contained variable amounts of starch (64-78%), fat (4- 6%), protein (7-12%), crude fibers (2-2.5%), ash (1-1.5%) and sugar (1-3%). Potassium (324.8-344 mg /100g), magnesium (107.9-115 mg/100g) and phosphorus (99,6-276 mg/100g) were the main mineral in maize. Likewise, leucine, isoleucine, tryptophane and valine all contained in the germ were the main amino acids in maize. These chemical components can be alone or in a possible synergy of action responsible for numerous technological advantages of maize. Through its chemical and technological characteristics the maize constitutes an important raw material for many culinary recipes in West Africa region. So it is important to make the inventory of the main varieties cultivated in the sub-region, to compare them at both nutritional and technological aspects for prospective actions to undertake in order to improve the yield of these varieties and to guarantee food security for the populations.

scholarly journals Multi-Criteria Decision-Making Approach for Nutraceuticals Greener Applications: The Cynara cardunculus Case Study

2021 ◽  
Vol 13 (23) ◽  
pp. 13483
Author(s):  
Michele Borroni ◽  
Carlo Massimo Pozzi ◽  
Sara Daniotti ◽  
Fabiana Gatto ◽  
Ilaria Re
Keyword(s):  
Decision Making ◽  
Raw Materials ◽  
Extraction Methods ◽  
Food Competition ◽  
Raw Material ◽  
Green Economy ◽  
Multi Criteria Decision Making ◽  
Cynara Cardunculus ◽  
High Concentration ◽  
Marginal Lands

Nutraceuticals are an ever-expanding market worldwide, facing the unstoppable transition towards a green economy. Developing economically feasible and sustainable alternatives to current raw materials for the extraction of nutraceuticals is, therefore, essential to reach these goals and, at the same time, achieve social and economic competitiveness. This paper intends to propose an economical and environmentally sustainable feedstock for chlorogenic acid (CGA) and inulin, whose current extraction from green coffee and chicory, respectively, is unsustainable. Our approach is based on the multi-criteria decision-making approach (MCDA), supported by the analytical hierarchy process (AHP), ranking the performance of competitor biomasses according to economic, social, and technological criteria. The results of this study highlight cardoon (Cynara cardunculus) as a promising raw material for the extraction of CGA and inulin in virtue of the high concentration, low-input growth regime, and the possibility of being grown on marginal lands. Nevertheless, cardoon biomass availability is currently scarce, extraction methods are underdeveloped, and consequently, the obtained product’s price is higher than the benchmark competitors. Policies and investments favoring sustainable cultivations could stimulate cardoon employment, linking economic advantages and land requalification while limiting phenomena such as desertification and food competition in the Mediterranean basin.

Insulation Systems of Frameless Buildings

2020 ◽  
Vol 992 ◽  
pp. 66-72
Author(s):  
Ekaterina Yu. Bobrova ◽  
K.A. Ter-Zakaryan ◽  
Alexey D. Zhukov ◽  
A.A. Medvedev ◽  
A.I. Poserenin
Keyword(s):  
Thermal Imaging ◽  
Weld Seam ◽  
Raw Material ◽  
Environmental Friendliness ◽  
Longitudinal Tensile Strength ◽  
Hot Air ◽  
Air Gun ◽  
Insulation Systems ◽  
Metallized Coating ◽  
Side Walls

The article analyzes different ways of creating an insulating coating within the scope of frameless buildings. Among such constructions, the production halls, raw material and finished-products storages, agricultural storages, livestock housing, garages, covered parking, sports and cultural facilities are to be distinguished. Criteria that the heat-insulating materials should meet in the context of effective and durable insulation coatings are low thermal conductivity, vapor and water permeability, high operational durability and environmental friendliness as well. It is confirmed that products based on polyethylene foam, such as mats and rolls, fully meet the above-mentioned criteria. Furthermore, the possibility of obtaining a seamless joint during the installation process significantly increases the effectiveness of the insulating coating by means of minimizing cold bridges and eliminating leakages when connecting separate insulating elements. Polyethylene foam is an elastic and well stretching material. When fixing polyethylene foam rolls on the metal covering of the frameless construction, they will change their shape together with the metal due to the climatic temperature drops (stretch and constrict). The performed tests have revealed that the longitudinal tensile strength of the products with a metallized coating is 80–92 kPa, without a metallized coating - 80–87 kPa, and 29–32 kPa of the weld seam. The article includes information regarding the results of thermal imaging monitoring of frameless constructions with an insulating coating based on polyethylene foam. It is shown that hot-air welding (with the help of a hot air gun) allows minimizing heat losses both at the joints of the sheets and in the areas adjoining to the base and to the side walls of the buildings.

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