scholarly journals Sustainable Production and Consumption of Paper and Paper Products in Nigeria: A Review

Resources ◽  
2019 ◽  
Vol 8 (1) ◽  
pp. 53 ◽  
Author(s):  
Obiora Ezeudu ◽  
Jonah Agunwamba ◽  
Ikenna Ezeasor ◽  
Christian Madu
Keyword(s):  
Task Force ◽  
Paper Industry ◽  
Sustainable Production ◽  
Raw Material ◽  
Human Society ◽  
Volatile Product ◽  
Product Price ◽  
Alternative Source ◽  
Cumulative Impact ◽  
Material Sources

Paper as a consumer product offers a undisputed benefits to human society, and it has been proven to be critical in driving most sensitive needs of mankind—principally in areas of security, education, sanitation, and communication—and thus has been produced and consumed worldwide. Its sustainable production and usage is one topic that has featured prominently in many discussion fronts and more often than not ends with recommendations for an alternative source of raw material, improvement in production procedures, and ecological concerns. Paper use is an ecological concern that has triggered many paper intervention actions around the world such as the Paper Task Force in USA, Sustainable Paper Alliance in China, and Paper and Beyond in Europe. In Nigeria, however, challenges associated with paper production, consumption, and economic prospects have not been adequately tackled. This is conspicuously evident in the huge volume of paper products imported annually into the country as a result of unsustainable local production. The cumulative impact of these issues reflect negatively on the Nigeria’s paper industry and spread indirectly to the entire country’s economy in terms of high capital freight spent on importation, volatile product price, and loss of employment opportunities. This work sought to review the challenges and opportunities associated with raw material sources, energy and water consumption, environmental pollution, paper consumption, and disposal of used paper products in Nigeria. The current review also advocated for wastepaper as a variant of raw material with a sustainable potential.

Determination of Physicochemical Properties and Emissions for Different Blends of Biodiesel from Watermelon(Citrullus lanatus L.) Seeds and Diesel Fuel

2018 ◽  
Vol 68 (12) ◽  
pp. 2771-2775
Author(s):  
Mihaela Gabriela Dumitru ◽  
Delia Nica Badea ◽  
Dragos Tutunea
Keyword(s):  
Diesel Engine ◽  
Diesel Fuel ◽  
Fossil Fuels ◽  
Citrullus Lanatus ◽  
Methyl Esters ◽  
Oxidation Stability ◽  
Chemical Properties ◽  
Raw Material ◽  
Alternative Source ◽  
Material Sources

Across the world the fossil fuels are depleting and countries are forced to find an alternative source to reduce green house gases and replace petroleum fuels. Depending of the raw material sources, vegetable oils, animal fats or algae, biodiesel offers a solution for a clean-burning diesel fuel. Watermelon (Citrullus lanatus L.) seed were collected and the oil was extracted. The oil was transformed into fatty acid methyl esters through a transesterification process and blended in various proportions with diesel fuel. The physico-chemical properties of fuels were determined. Results obtained showed that the biodiesel has a density (0.870 g/cm3), kinematic viscosity 40�C (3.1 mm2/s), flash point (128�C), saponification index (150 mgKOH/g), iodine index (108 mgI2/100g), peroxide index (3.7 mEqO2/Kg) and oxidation stability (6 hours) in the range of UE specifications. The engine tests were conducted on a Deutz F4L912 diesel engine, 51 kW, 4-stroke, air cooled, direct injection diesel engine. From the test performed was observed that the CO and HC emissions were reduced due to high content of oxygen in biodiesel blends.

scholarly journals Analisis Strategi Pemasaran Dalam Meningkatkan Penjualan Rumah Makan Pecak Hj. Sadiyah Cilodong Depok

2020 ◽  
Vol 3 (1) ◽  
pp. 22-47
Author(s):  
Reza Fauzi Ikhsan ◽  
Abrista Devi ◽  
Ahmad Mulyadi Kosim
Keyword(s):  
Marketing Strategy ◽  
Swot Analysis ◽  
Marketing Mix ◽  
Raw Material ◽  
Product Price ◽  
Online Delivery ◽  
Material Sources ◽  
Delivery Services ◽  
External Conditions ◽  
Qualitative Descriptive

This research begins from a phenomenon that describes the condition of restaurants in Indonesia as inseparable from problems related to marketing strategies, so that it can affect the existence of restaurants in competition and survival. This was a real reflection that cannot be avoided by a business. The research objective was to formulate the most appropriate marketing strategy in accordance with the applied marketing mix by looking at the internal and external conditions that are owned by Pecak Hj. Sadiyah Restaurant. This research was a qualitative descriptive study using marketing strategy theory. Data technique used observation, interviews, documentation, and questionnaires. Data analysis performed was data reduction, data presentation, data lever, and SWOT analysis. These research results have identified the marketing mix, such as product, price, place, and promotion. Then identified indicators in the internal environment as legality, agile operational managers, increasing income every year, quality food, strategic location, halal certification, good cooperation between workers, low prices with high taste, effective distribution channels, and leadership relationships with employees. good. Weaknesses include no offering motivation, no meetings, poor work management, minimal human resources, parking areas, and limited distribution areas. The external environment was able to take advantage of opportunities from abundant raw material sources, developing technology, consumptive culture of society, online delivery services, and high consumer loyalty. Related threats include unstable raw material prices, unstable public interest, shifting of consumers to competitors, and developments since Covid-19, so that the most appropriate marketing strategy was formulated for the development of Pecak Hj. Sadiyah Restaurant in minimizing the weaknesses and threats that threaten.  

Calculation of the Glaze Recipe for Porcelain Feldspar Products Based on their Molecular Formula Rationalization

2008 ◽  
Vol 59 (2) ◽  
pp. 129-134
Author(s):  
Ion Teoreanu ◽  
Roxana Lucia Dumitrache ◽  
Stefania Stoleriu
Keyword(s):  
Raw Materials ◽  
Computer Programs ◽  
Point Of View ◽  
Raw Material ◽  
Easy Access ◽  
Molecular Formula ◽  
Design Equation ◽  
Material Sources

Any change of the raw material sources for glazes, economically, ecologically motivated, and also from the glaze quality point of view, is conditioned by the molecular formula rationalization and by the variation limits of the molecular formula, respectively. The proper glaze compositions are placed within their limit variation intervals with optimized processing and utilization properties. For this purpose, the rationalization criteria and procedures of molecular formulas are summarized in the present paper, as well as the results referring to their rationalization obtained in the authors� previous work. Thus, one starts from a base of raw materials that are selected, usable and also accessible for the design and producing of the glazes. On these bases the groundwork and the design equation for the glaze recipes are developed, exemplified for a single glaze. For an easy access to results, computer programs are used for an easy access to results.

Colour and Directional Symbolism in Ancestral Pueblo Radial Offerings from Chaco Canyon

2021 ◽  
pp. 1-21
Author(s):  
Hannah V. Mattson
Keyword(s):  
American Southwest ◽  
Raw Material ◽  
Chaco Canyon ◽  
Assemblage Theory ◽  
Ancestral Pueblo ◽  
Landscape Features ◽  
Material Sources ◽  
Regional System ◽  
Roof Support

Dedicatory offerings of small colourful objects are often found in pre-Hispanic architectural contexts in the Ancestral Pueblo region of the American Southwest. These deposits are particularly numerous in the roof support pillars of circular ritual structures (kivas) at the site of Pueblo Bonito, Chaco Canyon, which served as the ceremonial hub of the Chacoan regional system between the tenth and twelfth centuries ce. Based on the importance of directionality and colour in traditional Pueblo worldviews, archaeologists speculate that the contents of these radial offerings may likewise reference significant Chacoan cosmographic elements. In this paper, I explore this idea by examining the distribution of colours and materials in kiva pilaster repositories in relation to directional quadrants, prominent landscape features, and raw material sources. I discuss the results in the context of Pueblo cosmology and assemblage theory, arguing that particular colours were polyvalent and relational, deriving their meanings from their positions within interacting and heterogenous assemblages.

Analyses and evaluation of the main chemical components in different tobacco (Nicotiana tabacum L.) genotypes

2021 ◽  
Vol 72 (1) ◽  
pp. e389
Author(s):  
M. Camlica ◽  
G. Yaldiz
Keyword(s):  
Fatty Acid ◽  
Crude Oil ◽  
Sugar Content ◽  
Industrial Applications ◽  
Reducing Sugar ◽  
Raw Material ◽  
Chemical Components ◽  
Alternative Source ◽  
Nicotine Content ◽  
Tobacco Seeds

The nicotine, reducing sugar and ion contents from the threshing of tobacco can re-used from the industry. The crude oil and fatty oil compositions of tobacco seeds can be considered as an alternative source of raw material for biodiesel. In this study, the nicotine, reducing sugar content, crude oil, fatty acid composition and ion content were determined in 29 genotypes and 1 cultivar of tobacco. The genetic diversity was determined among the tobacco cultivar and genotypes base on examined properties. The nicotine content varied between 0.10-0.87%, reducing sugar ranged from 9.70-21.30%, crude oil varied between 24.33-47.00% and fatty acid compositions was found in the range of 77.94-100%. Linoleic (13.92-75.04%) and butyric (0.33-64.98%) acids were the major components. Overall, the BSR-5 (52.56 mg/g) and ESR-5 (44.58 mg/g) genotypes exhibited the highest potassium contents and ESR-7 (6.54 mg/g) and ESR-8 (1.28 mg/g) genotypes had the lowest chlorine contents. As a result of this study, the highest nicotine content, reducing sugar and crude oil of tobacco were found in ESR-4, ESR-11 and BSR-5 genotypes, respectively. The dendrogram analysis divided the tobacco into two main groups and most of the same origin genotypes fell into the same group. The results indicated that the different tobacco leaves and seeds can be evaluated as an alternative source in the industry as cigarettes, biodiesel and different industrial applications such as cosmetic, oil paints and varnishes based on their chemical properties.

Firing Temperatures and Raw Material Sources of Ancient Hittite Ceramics of Asia Minor

2009 ◽  
Vol 68 (1) ◽  
pp. 35-40 ◽  
Author(s):  
E. Akça ◽  
J. Arocena ◽  
G. Kelling ◽  
T. Nagano ◽  
P. Degryse ◽  
...  
Keyword(s):  
Raw Material ◽  
Asia Minor ◽  
Material Sources

scholarly journals Formulation Development and Performance Characterization of Ecological Dust Suppressant for Road Surfaces in Cities

2021 ◽  
Vol 11 (21) ◽  
pp. 10466
Author(s):  
Yuan Wang ◽  
Cuifeng Du ◽  
Mengmeng Cui
Keyword(s):  
Moisture Absorption ◽  
Environmentally Friendly ◽  
Road Dust ◽  
Raw Material ◽  
Retention Performance ◽  
Formulation Development ◽  
Performance Characterization ◽  
Material Sources ◽  
Road Surfaces

In order to solve the problem of road dust pollution, an ecological dust suppressant for road surfaces has been developed using monomer, orthogonal, and optimization experiments and based on the dust raising mechanism. A humectant, hygroscopic agent, coagulant and surfactant and their concentration ranges have been determined through monomer experiment. The preliminary formula of the dust suppressant has been obtained through orthogonal experiment, with the water loss rate, moisture content rate, viscosity value, and surface tension value serving as experimental indexes. The optimal formula for the dust suppressor has been calculated through an optimization experiment, with the toxicity, moisture absorption and retention performance of plants, and the relative damage rate of plant seeds serving as experimental indexes. Based on the performance characterization of ecological road dust suppressant, the ecologically and environmentally friendly dust suppressant demonstrates fine moisture absorption and retention performance, good wind and rain erosion resistance, and no toxicity. The ecological road dust suppressant developed herein covers extensive raw material sources. It is ecologically and environmentally friendly, fit for most urban roads, and has a fine dust suppression effect. Meanwhile, it also can bring in good economic and social benefits, demonstrating its broad application prospects.

scholarly journals WOOD COMPONENTS AS SOURCES OF PENTO-CONTAINING RAW MATERIALS FOR SYNTHESIS OF USEFUL COMPOUNDS, PRODUCTS AND REAGENTS

2021 ◽  
Vol 64 (3) ◽  
pp. 107-115
Author(s):  
Irina A. Chetvertneva ◽  
Oleg Kh. Karimov ◽  
Galina A. Teptereva ◽  
Natalia S. Tivas ◽  
Eldar M. Movsumzade ◽  
...  
Keyword(s):  
Raw Materials ◽  
Condensation Reaction ◽  
Agricultural Waste ◽  
Monomer Unit ◽  
Paper Industry ◽  
Raw Material ◽  
Chemical Transformations ◽  
Covalent Bonds ◽  
Industry Waste ◽  
Wood Processing

The paper considers the main components and products of wood processing, agricultural waste, pulp and paper industry waste and qualifies them as sources of pentose-containing resource-renewable domestic raw materials. The article describes in detail the structural components of wood as a natural polymer, which contains aromatic and carbohydrate parts. It is noted that these poly-mers are promising as raw materials for the production of useful chemical products. The role of lignin, cellolose and hemicellulose in the design of mechanical and structural properties of wood is considered. The article considers the features of the sulfonation reactions of the lignin monomer unit depending on the pH of the medium: acidic, neutral and alkaline. There are three main reac-tions that occur simultaneously with lignin in the process of wood delignification during sulfite cooking, such as the sulfonation reaction, the hydrolytic destruction reaction, and the condensation reaction. It is shown that the lignin-hemicellulose matrix contains three types of interconnected mesh structures: the lignin itself; a network of covalent bonds of lignin with hemicelluloses, and a network whose structure is obtained due to the hydrogen bond and the forces of the physical inter-action of lignin and hemicelluloses. The features of chemical transformations of the monomeric aromatic link of lignosulfonate – phenylpropane unit in the processes of wood delignification, the main chemical reactions of wood raw material delignification under the conditions of sulfite and neutral-sulfite brews are shown. The method of quantitative determination of monosaccharides in the composition of the carbohydrate part is proposed.

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