Pore-Forming Additives for Ceramic Gravel Production Made of Technogenic Materials

2016 ◽  
Vol 870 ◽  
pp. 196-201 ◽  
Author(s):  
N.Yu. Kiryushina ◽  
N.S. Lupandina
Keyword(s):  
Heavy Metals ◽  
Wastewater Treatment ◽  
Chemical Composition ◽  
Atomic Absorption ◽  
Building Material ◽  
Industrial Waste ◽  
Building Materials ◽  
Raw Material ◽  
Optimal Amount ◽  
Technogenic Waste

The purpose of the research is to determine the possibility of producing claydite gravel using the technogenic waste - wastewater treatment sludge – as the raw material. In this paper the titrimetric, spectrophotometrical, atomic absorption methods of research are used, the chemical composition of clay and wastewater treatment sludge has been determined. The possibility of using this waste material as an additive for claydite gravel production has been proved. The optimal amount of the wastewater treatment sludge being added to the basic raw stuff has been identified. The negligible extent of heavy metals leaching from the obtained building material has been researched and experimentally proved. The article can be of interest for the specialists in the sphere of obtaining new building materials based on industrial waste and wastewater treatment.

The Research of Iron Containing Wastes Modification Process of Leninabad Rare Metals Plant

2021 ◽  
Vol 410 ◽  
pp. 778-783
Author(s):  
Pavel V. Matyukhin ◽  
Daler I. Mirzoev
Keyword(s):  
Chemical Composition ◽  
Building Materials ◽  
Raw Material ◽  
Filling Material ◽  
Rare Metals ◽  
X Ray ◽  
Modification Process ◽  
Before And After ◽  
The Republic ◽  
Enrichment Process

The paper presents the results of ferriferous wastes modification process research carried on the basis of JCS “Leninobad rare metals Plant” located in the Republic of Tajikistan. The wastes for the study were taken from the western tailing. The article presents the justification of the chosen wastes as a filling material in the development of new radiation protective composite building materials. The data on the initial ferriferous chemical composition of the tailing wastes and the chemical composition of the material that passed the enrichment process is presented. The study contains microphotos of ferriferous haematite raw material particles surface before and after completing the modifying process. The paper presents and describes the study of X-ray phase analysis diffractograms of enriched iron-containing wastes before and after the modification process. The current research proves that the enrichment ferriferous wastes particles modification process is possible and as a result it can be used as a filling for the development of new kinds of radioprotective composite materials.

Utilization of sewage sludge ashes in the brick and tile industry

1997 ◽  
Vol 36 (11) ◽  
pp. 251-258 ◽  
Author(s):  
Bernd Wiebusch ◽  
Carl Franz Seyfried
Keyword(s):  
Heavy Metals ◽  
Wastewater Treatment ◽  
Chemical Composition ◽  
Sewage Sludge ◽  
Treatment Methods ◽  
Sludge Incineration ◽  
Brick And Tile ◽  
The Impact

Several aspects of using ashes from sewage sludge incineration in the brick and tile industry have been examined. After discussing the item of ash production in Germany, the impact of different wastewater treatment methods is described; for instance, the use of precipitation agents containing iron will considerably influence the ash quality. Depending on their respective chemical composition, different ashes have different effects on the ceramic qualities of the bricks made of clay blended with ashes. These effects will be shown in regard to the major ceramic parameters. Similarly, the quality of the ashes also influences the elution behaviour and the mineral fixation of heavy metals.

The Use in the Production of Clinker Waste of Non-Ferrous Metallurgy and Power Engineering of East Kazakhstan

2020 ◽  
Vol 24 (3) ◽  
pp. 14-18 ◽  
Author(s):  
V.Z. Abdrakhimov ◽  
A.K. Kairakbaev ◽  
E.S. Abdrakhimova
Keyword(s):  
Environmental Protection ◽  
Ferrous Metallurgy ◽  
Industrial Waste ◽  
Building Materials ◽  
Light Fraction ◽  
Power Engineering ◽  
Raw Material ◽  
Material Base ◽  
East Kazakhstan ◽  
Ceramic Building

The technology of obtaining clinker bricks on the basis of waste of non-ferrous metallurgy – clay part of the "tails" of the gravity of zircon-ilmenite ores and waste of energy – ash of light fraction is considered. The use of non-ferrous metallurgy and energy waste in ceramics contributes to the disposal of industrial waste, environmental protection and the expansion of the raw material base for ceramic building materials.

Fly-Ash Usage in New Cement-Based Material for Concrete Waterproofing

2012 ◽  
Vol 535-537 ◽  
pp. 1902-1906 ◽  
Author(s):  
Stepan Bohus ◽  
Rostislav Drochytka ◽  
Luboš Taranza
Keyword(s):  
Fly Ash ◽  
Building Material ◽  
Building Materials ◽  
Concrete Surface ◽  
The Other ◽  
Raw Material ◽  
World Production ◽  
New Materials ◽  
Other Hand ◽  
Secondary Raw Material

Concrete is the most widely used building material and due to its use, water tightness is one of the factors essential for many constructions. Materials applied on concrete surface as secondary protection can have various forms. One of the material group with waterproofing ability, are materials on so called "crystalline technology base". As this material is cement-based its wide world production brings significant effect on environment. To bring on building materials market new materials should be considered its environmental friendlier production. One of the ways for this group of materials with crystalline abilities is replacing cement by other substituent, at best by secondary raw material. This would bring double advantage, lowering usage of cement and on the other hand use of already produced secondary raw material. This article deals with new developed materials based on "crystalline technology" with cement partly replaced by fly-ash substituent. At this article are presented results of new developed screed and coating modifications and its effectiveness on concrete waterproofing.

scholarly journals Uso de nutrientes tecnológicos como materia prima en la fabricación de materiales de construcción en el paradigma de la economía circular

Respuestas ◽  
2017 ◽  
Vol 22 (1) ◽  
pp. 6 ◽  
Author(s):  
Alejandra Sarabia-Guarin ◽  
Jorge Sánchez-Molina ◽  
Juan Carlos Leyva-Díaz
Keyword(s):  
Circular Economy ◽  
Building Material ◽  
Industrial Waste ◽  
Building Materials ◽  
Scientific Information ◽  
Nutrient Recycling ◽  
Construction Sector ◽  
Construction Process ◽  
Economic Sectors ◽  
Waste Reuse

Antecedentes: El sector de la construcción es uno de los sectores económicos en Colombia con mayor crecimiento, generando grandes cantidades de residuos como producto del proceso de construcción, y/o demolición, o en su defecto en la fabricación de los materiales de construcción. Objetivo: facilitar el acceso a información académicocientífica actualizada sobre reciclaje de residuos industriales y su aplicación en la fabricación de materiales de construcción. Así mismo se emplea el término de economía circular, el cual hace referencia a la integración de las actividades de reducción (consumo de energía y residuos), reutilización y recuperación durante la producción, el intercambio y consumo. Conclusión: además de reducir la contaminación generada por los residuos de los sectores productivos, con el aprovechamiento de los subproductos ha sido posible mejorar ciertas propiedades tecnológicas de estos materiales de construcción.Palabras Clave: economía circular, materiales de construcción, nutriente tecnológico, reciclaje, residuos industriales.AbstractBackground: The construction sector is one of the economic sectors with the highest growth in Colombia, generating large amounts of waste as a result of the construction process, and / or demolition, or otherwise in the building material manufacturing. Objective: to facilitate the access to updated academic-scientific information on recycling of industrial waste and its application for the building material manufacturing. Moreover, the concept of circular economy is used, which refers to the integration of the reduction activities (energy consumption and waste),reuse and recycling during the production, exchange and consumption. Conclusion: in addition to the reduction of the pollution generated by waste from the productive sectors, certain technological properties of these building materials have been improved through the use of waste. Keywords: circular economy, building materials, technological nutrient, recycling, industrial waste.

scholarly journals Study of Heavy Metals in the Soils of Two Localities in Dolj County

2018 ◽  
Vol 1 (1) ◽  
pp. 352-357
Author(s):  
Gilda-Diana Buzatu ◽  
Ana Maria Dodocioiu
Keyword(s):  
Heavy Metals ◽  
Heavy Metal ◽  
Wastewater Treatment ◽  
Chemical Composition ◽  
Wastewater Treatment Plant ◽  
Treatment Plant ◽  
Chemical Properties ◽  
Chemical Parameters ◽  
Physical And Chemical ◽  
And Chemical Properties

Abstract The study was conducted in two neighboring localities located in the northern county of Dolj, namely Murgasi and Bulzesti. The purpose of the study was twofold: namely, the study of heavy metal loading in order to identify possible pollution areas and to know the soil content of these localities in heavy metals in order to be able to give the verdict on the use of sludge from Craiova wastewater treatment plant as fertilizer on these soils. In order to determine the suitability of sewage sludge from the Craiova wastewater treatment plant as a fertilizer, physical and chemical properties and heavy metal content of the soils in these areas were analysed, as well as the chemical composition of sludge, according to Order 344/2004 of the Ministry of Environment and Water Management of Romania, respectively 13 physical and chemical parameters of the soils in these localities and the chemical composition of the sludge and respectively the quantity of heavy metals to be introduced annually into the soil by using it.

Effect of Calcium Hydroxide and Water to Solid Ratio on Compressive Strength of Mordenite-Based Geopolymer and the Evaluation of its Thermal Transmission Property

2018 ◽  
Author(s):  
Mauricio H. Cornejo ◽  
Jan Elsen ◽  
Bolivar Togra ◽  
Haci Baykara ◽  
Guillermo Soriano ◽  
...  
Keyword(s):  
Thermal Conductivity ◽  
Compressive Strength ◽  
Experimental Design ◽  
Calcium Hydroxide ◽  
Building Material ◽  
Building Materials ◽  
Raw Material ◽  
Scanning Calorimetry ◽  
Solid Ratio ◽  
Central Composite Experimental Design

Mordenite-rich tuff is one of most available zeolitic rocks all over the world. Because of this, the research of natural mordenite as a raw material of geopolymeric materials can provide an almost unlimited source of solid precursor for manufacturing such building materials. Despite efforts to shed light on the behaviour of mordenite-rich tuff during geopolymeric reaction, the performance of these novel materials is barely understood. The aim of this study is to explore the effect of the content of calcium hydroxide, CH, and water-to-solid ratio, W/S, as mixing parameters on compressive strength of mordenite-based geopolymers, MBG, and its thermal conductivity. As solid precursor was used mordenite-rich tuff and mixed with sodium hydroxide (NaOH) at 10M that kept constant during the experiment. Two experimental parameters were selected as independent variables i.e, the content of CH and water-to-solid ratio, and their levels, according to a central composite experimental design. All these designed mixes were characterized by using quantitative X-ray diffraction (QXRD), Fourier Transform Infrared spectroscopy (FTIR), Thermogravimetry and differential scanning calorimetry (TGA-DSC), scanning electron microscopy coupled with energy dispersed spectroscopy (SEM-EDS), in addition thermal conductivity tests were also run according to standard method ASTM C177 at 9, 24, 39°C. The overall results suggested that MBG can be used as building material, however its thermal conductivity was higher than that of commercial isolate building material. The experimental design analysis indicated that the optimum water-to-solid ratio was 0.35, but in the case of the content of CH, the optimum value was not observed on this experimental range because the compressive strength increased as the content of CH increased as well. The compressive strength of MBG was observed in the range between 8.7 and 11.3 MPa. On the other hand, QXRD and FTIR showed that mordenite reacted during the geopolymeric reaction, but instead quartz, also found in zeolitic tuff, acted as inert filler.

scholarly journals Construction of affordable housing using local building materials

2020 ◽  
pp. 154-165
Author(s):  
V. V. Tytok
Keyword(s):  
Affordable Housing ◽  
Industrial Waste ◽  
Building Materials ◽  
Raw Materials ◽  
Construction Materials ◽  
Climatic Conditions ◽  
Raw Material ◽  
Material Base ◽  
Long Distance ◽  
The Cost

Trends in housing development should be based on the geographical location and climatic conditions of the region, national characteristics and culture, natural resources, transport links, density and living standards. Construction significantly affects the socio-economic development of the region. In this regard, increasing the sustainability of the regional construction complex, which is based on the building materials industry and the construction industry is a relevant and promising area of research.Demand in the building materials market continues to stimulate increased interest in the development of new types of efficient and inexpensive building materials. Since construction is one of the most material-intensive sectors of the economy, which consumes a large number of construction materials and products, various measures are taken to reduce their cost.In this regard, recently in the construction seek to make greater use of local building materials. This allows you to unload transport from long-distance transportation and significantly reduces the cost of construction. However, the building materials industry cannot develop by focusing only on natural sources of raw materials, as the costs of their extraction and processing are constantly growing. The use of man-made waste provides production with a rich source of cheap and often already prepared raw materials, which reduces the cost of manufacturing building materials.One of the promising areas in the construction of affordable housing is the maximum use of building materials and products that can be obtained from local raw materials and industrial waste. As local building materials are offered: clay, sand, soil, straw, reeds, flax. The use of industrial waste solves both environmental, fuel and energy problems and expands the raw material base of building materials.

scholarly journals ANTIMONY AND VANADIUM IN INCINERATION BOTTOM ASH – LEACHING BEHAVIOR AND CONCLUSIONS FOR TREATMENT PROCESSES

Detritus ◽  
2021 ◽  
pp. 75-81
Author(s):  
Franz-Georg Simon ◽  
Christian Vogel ◽  
Ute Kalbe
Keyword(s):  
Heavy Metals ◽  
Building Materials ◽  
Bottom Ash ◽  
Road Construction ◽  
Raw Material ◽  
Steady Increase ◽  
Leaching Behavior ◽  
Test Procedures ◽  
Chloride Sulfate ◽  
The Impact

Due to its large mineral fraction, incineration bottom ash (IBA) from municipal solid waste incineration is an interesting raw material that can be used for road construction or to produce secondary building materials. However, leaching chloride, sulfate, and potentially harmful heavy metals may cause problems in using IBA in civil engineering. Investigating leaching behavior is crucial for the assessment of the environmental compatibility of IBA applications. Various test procedures are available for that purpose. In the present study, a long-term leaching test of a wet-mechanically treated IBA was performed in a lysimeter for almost six years. While concentrations of chloride, sulfate and the majority of the heavy metals started to decrease rapidly with advancing liquid-to-solid ratio (L/S), antimony (Sb) and vanadium (V) behaved differently. At the beginning of the lysimeter test, the Sb and V concentrations were low, but after approximately one year of operation at an L/S ratio of around 0.8 L/kg, a steady increase was observed. It was shown that this increase is the result of low Ca concentrations due to the formation of CaCO3. With the data, the solubility products from Ca-antimonate and Ca-vanadate were calculated. The unusual leaching behavior of Sb and V should be kept in mind when considering field scenarios and evaluating the impact on the environment.

scholarly journals Pumice Characteristics and Their Utilization on the Synthesis of Mesoporous Minerals and on the Removal of Heavy Metals

2014 ◽  
Vol 2014 ◽  
pp. 1-9 ◽  
Author(s):  
A. I. M. Ismail ◽  
O. I. El-Shafey ◽  
M. H. A. Amr ◽  
M. S. El-Maghraby
Keyword(s):  
Heavy Metals ◽  
Wastewater Treatment ◽  
Metal Removal ◽  
Raw Materials ◽  
Synthetic Zeolite ◽  
Raw Material ◽  
Ion Concentration ◽  
Crystallization Time ◽  
Highly Active ◽  
Zeolite P

Wastewater treatment of some heavy metals was carried out by synthetic zeolite P1, which was prepared by alkaline hydrothermal treatment of the pumice. Both of the pumice raw materials and synthetic zeolite were investigated for their chemical phase composition, physical properties, and microstructure. The adsorption behavior of Na-zeolite P1 with respect to Co+2, Cu+2, Fe+2, and Cd+2 has been studied to be applied in the industrial wastewater treatment. Metal removal was investigated using synthetic solutions at different ions concentrations, time, and Na-P1 zeolite doses as well as constant temperature and pH. It is concluded that the optimum conditions for synthesis of highly active Na-P1 zeolite from natural pumice raw material are one molar NaOH concentration, temperature at 80°C, and one week as a crystallization time. In addition to the effect of time and zeolite dose as well as the ion concentration of the reaction efficiency for metals removals are recorded.

Sign in / Sign up

Export Citation Format

Share Document