Application of Pulse Electrocoagulation to Dye Wastewater Treatment

2011 ◽  
Vol 233-235 ◽  
pp. 444-451 ◽  
Author(s):  
Yi Min Chen ◽  
Bao Xue Zhou ◽  
Long Hai Li ◽  
Yong Hiu Song ◽  
Jin Hua Li ◽  
...  
Keyword(s):  
Energy Conservation ◽  
High Efficiency ◽  
Electrical Energy ◽  
High Energy ◽  
Dye Wastewater ◽  
Treatment Efficiency ◽  
Efficient Technology ◽  
Iron Electrodes ◽  
High Level ◽  
High Energy Consumption

Electrocoagulation (EC) has been proven by a substantial number of studies to be an efficient technology to remove organic pollutants from wastewater. Nevertheless, the high energy consumption of this technology inhibits its extensive application. The objective of this work is to investigate the feasibility of electrical energy conservation and high efficiency by using Pulse Electrocoagulation (PE). PE, a combination of a pulsing technique and EC, was proposed in an attempt to treat the dye wastewater. The results demonstrated that PE, as compared with DCE (direct current electrocoagulation), resulted in up to 51.66% energy conservation by using two iron electrodes as anode and cathode. Moreover, this high energy conservation was obtained during a high level of treatment efficiency: 99.62% of color removal and 91.15% of COD removal for 1000 mg L-1 4BS solution in a short electrolyzing time of 15 mins.

One High Efficiency Production Line of Clinker and Slag Grinding Separately by Roller Mill in Cement Industry

2008 ◽  
Vol 58 ◽  
pp. 83-89
Author(s):  
Ning Chang Liu ◽  
Zhao Feng Li
Keyword(s):  
Energy Consumption ◽  
High Efficiency ◽  
High Energy ◽  
Cement Industry ◽  
Grinding Process ◽  
Roller Mill ◽  
Low Efficiency ◽  
Cement Grinding ◽  
Grinding System ◽  
High Energy Consumption

In cement industry, many grinding up systems are on operating now. The tradition process of tube mill grinding system is high energy consumption, so it’s low efficiency, especially in the final cement grinding process. The value and advantage of slag is recognized more and more, but it’s difficult to be grinded up. Furthermore, the disadvantage and shortages to grind up clinker compounded with slag to produce cement are obvious and adopted. The best process is to grind up slag, clinker separately. Then, these two kinds of powder are compounded by a mixer. Hereby, it introduces a design of the process to grind up clinker, slag by one roller mill.

Consideration on Issues about Study of Building Energy Conservation

2011 ◽  
Vol 255-260 ◽  
pp. 1348-1352
Author(s):  
Wei Hua Zhang ◽  
Jia Ping Liu
Keyword(s):  
Energy Consumption ◽  
Energy Conservation ◽  
Local Governments ◽  
Building Energy ◽  
High Energy ◽  
Thermal Engineering ◽  
Technical Standards ◽  
Building Energy Conservation ◽  
Set Up ◽  
High Energy Consumption

The study and design of energy conservation has gradually become a hot and key issue in architecture. One of the core contents of such concepts as green architecture, ecological architecture, sustainable architecture, organic architecture is how to reduce high energy consumption of buildings. The study of building energy conservation has been carried out in subjects of architectural thermal engineering and energy conservation for almost 30 years. The central and local governments have set up special management agencies and departments of building energy conservation; building research institutes at all levels and numerous universities have set up research institutions for study of building energy conservation and issued a series of policies and regulations and technical standards, which received an enthusiastic response from industrial circles and have produced tens of billions of production. However, more than 95% of the existing buildings and more than 80% of new buildings of China belong to those with high energy consumption. The paper tries to interpret the deep reason of the phenomenon from the aspects of society, technology, etc. for discussion of researchers in the field of architectural thermal engineering and energy conservation.

The Energy Conservation Analysis and Transformation Technology for Flat Roofs of Existing Buildings in Zhengzhou

2011 ◽  
Vol 71-78 ◽  
pp. 1824-1830
Author(s):  
Yi Zhong Zhang ◽  
Chao Yan
Keyword(s):  
Energy Conservation ◽  
Energy Efficient ◽  
High Energy ◽  
Building Construction ◽  
Existing Buildings ◽  
Insulating Materials ◽  
Conservation Analysis ◽  
Energy Conservation Measures ◽  
Flat Roofs ◽  
High Energy Consumption

For the construction of a building was insulated and energy efficient effect, zhengzhou have evaluated the building, construction and the flat roofs structure raging indicators and energy conservation of heat transfer is far below the effect of the relevant provisions. In the heat of the environment, the building runs high energy consumption, raise the roof insulating structure of the insulator, "flat" to "slope" and adopt a ceiling on the roof insulating materials of energy conservation measures for reforming and feasibility of energy conservation raging technical analysis.

scholarly journals Review of solid oxide fuel cell materials: cathode, anode, and electrolyte

2020 ◽  
Author(s):  
Saddam Hussain ◽  
Li Yangping
Keyword(s):  
Power Generation ◽  
High Efficiency ◽  
Electrical Energy ◽  
Ceramic Materials ◽  
High Energy ◽  
Solid Oxide ◽  
Layer By Layer ◽  
Oxide Fuel ◽  
Ceramic Electrolyte ◽  
Fuel Cell Materials

Abstract There is a growing interest in solid oxide fuel cells (SOFCs) technology among the researchers a promising power generation with high energy efficiency, inflated fuel flexibility, and low environmental impact compared to conventional power generation systems. SOFCs are devices in which the chemical energy is directly converted into electrical energy with negligible emission. SOFCs have low pollution characteristics, high efficiency (~ 60%), and possess expanded fuel selection with little environmental effects. A single cell component of SOFCs is consisting an anode, cathode and an electrolyte which are stacked layer by layer to produce higher amount of power. The dense ceramic electrolyte transporting O2− ions and fills the space between the electrodes material. Redox reaction occurred at the electrodes side in the presence of fuels. The operating temperatures of SOFCs of 600–1200 °C which produced heat as a byproduct and fast electro-catalytic activity while using nonprecious metals. Many ceramic materials have been investigated for SOFCs electrolyte. Yttria-stabilized zirconia (YSZ) material was extensively used as dense electrolyte in SOFCs technology. In this review, the article presents; overview of the SOFCs devices and their related materials and mostly reviewed newly available reported.

Passive Energy-Saving Design in Hot and Humidity Area: A Case Study of Multi-Functional Stadium of Guangdong College of Pharmacy

2011 ◽  
Vol 121-126 ◽  
pp. 715-719
Author(s):  
Lei Zhang ◽  
Qing Lin Meng ◽  
Jin Li
Keyword(s):  
Energy Conservation ◽  
Natural Ventilation ◽  
High Energy ◽  
Natural Lighting ◽  
Playing Field ◽  
Architectural Lighting ◽  
Energy Conservation Measures ◽  
High Energy Consumption ◽  
Test Result

As stadiums have high energy consumption in architectural lighting and air conditioning, how to make full use of natural lighting and natural ventilation is the key to architectural energy conservation. To this end, many passive energy conservation measures have been taken into account in designing Multifunctional Stadium of Guangdong Pharmaceutical University. For instance, strip light windows with vertical shading have been installed on east and west facade, open external windows on south and north facade etc. Test result of the Stadium shows that the above-mentioned passive design methods are able to increase natural light intensity of the playing field and prevent glare, improve wind velocity of natural ventilation and comfort in spectator areas.

scholarly journals Interpreting the High Energy Consumption of the Brain at Rest

Proceedings ◽  
2019 ◽  
Vol 46 (1) ◽  
pp. 30
Author(s):  
Alejandro Chinea Manrique de Lara
Keyword(s):  
Energy Consumption ◽  
Statistical Physics ◽  
High Energy ◽  
Neuronal Firing ◽  
Total Energy Consumption ◽  
Common Information ◽  
Physics Model ◽  
High Level ◽  
The Brain ◽  
High Energy Consumption

The notion that the brain has a resting state mode of functioning has received increasing attention in recent years. The idea derives from experimental observations that showed a relatively spatially and temporally uniform high level of neuronal activity when no explicit task was being performed. Surprisingly, the total energy consumption supporting neuronal firing in this conscious awake baseline state is orders of magnitude larger than the energy changes during stimulation. This paper presents a novel and counterintuitive explanation of the high energy consumption of the brain at rest obtained using the recently developed intelligence and embodiment hypothesis. This hypothesis is based on evolutionary neuroscience and postulates the existence of a common information-processing principle associated with nervous systems that evolved naturally and serves as the foundation from which intelligence can emerge and to the efficiency of brain’s computations. The high energy consumption of the brain at rest is shown to be the result of the energetics associated to the most probable state of a statistical physics model aimed at capturing the behavior of a system constrained by power consumption and evolutionary designed to minimize metabolic demands.

Variable Regimes Operation of Cogenerative Gas-Turbine Engine With Overexpansion Turbine

2010 ◽  
Author(s):  
V. Matviienko ◽  
V. Ocheretianyi
Keyword(s):  
Gas Turbine ◽  
Electrical Power ◽  
Electrical Energy ◽  
High Energy ◽  
Gas Turbine Engine ◽  
Energetic Efficiency ◽  
Turbine Engine ◽  
Power Turbine ◽  
Turbo Compressor ◽  
High Level

High energetic efficiency of cogenerative gas-turbine engine (GTE) is due to by deep utilization of exhaust gases heat and greater portion of produced electrical energy, with is achieved by complication of Brayton cycle application of overexpansion in turbine. Such method is realized in GTE with turbo-compressor utilizer (TCU) attached to exhaust of the engine. TCU consists of the overexpansion turbine, exhaust compressor and gas cooler between them. Gas cooler in TCU is used as a water boiler-utilizer. This paper presents characteristics of GTE with TCU in variable regimes of loading. It is found, that GTE with TCU at nominal and partial loadings has higher efficiency, than simple cycle GTE. Construction of GTE with TCU can be performed with free TCU and blocked TCU, which is mechanically linked to power turbine. High energy efficiency of GTE with free TCU is proved, enabling to maintain overall efficiency on high level on decrease of electrical power. It is suggested that GTE with free TCU is more efficient for energy supply of municipal objects, and its constructive scheme provides stable delivery of heat energy to consumer upon significant variation of electric loading.

Production of Nanopowders with the Help of Fiber Laser

2010 ◽  
Vol 62 ◽  
pp. 22-26 ◽  
Author(s):  
Maxim Ivanov ◽  
Yuriy Kotov ◽  
Oleg Samatov ◽  
Olga Timoshenkova ◽  
Tatiana Demina
Keyword(s):  
Grain Size ◽  
Energy Consumption ◽  
Fiber Laser ◽  
High Energy ◽  
Vapor Condensation ◽  
Commercial Production ◽  
Efficient Technology ◽  
Output Rate ◽  
Laser Data ◽  
High Energy Consumption

Development of an efficient technology to produce nanopowders for nanostructured materials with improved mechanical, novel electromagnetic and optical properties is still of current importance. Nanoparticles can be made by means of laser-assisted material evaporation and subsequent vapor condensation. The method provides high-purity weakly agglomerated nanopowders with narrow grain size distribution, and can be applied to various materials. However, up to these days this technique has not found wide recognition because of a low output rate and high energy consumption. This report deals with the production technology and characteristics of nanopowders produced with the help of Yb-doped fiber laser. Data for the nanopowders characteristics, as well as output rate and energy consumption are discussed in this paper. The evaporation of materials with the help of the fiber laser was proved to be an efficient method for commercial production of the fine nanopowders.

scholarly journals Technology of complex processing of peat

2020 ◽  
pp. 32-41
Author(s):  
Yu. Sniezhkin ◽  
◽  
Zh. Petrova ◽  
Yu. Novikova ◽  
A. Petrov ◽  
...  
Keyword(s):  
Humic Substances ◽  
Liquid Fraction ◽  
Physiological Activity ◽  
High Energy ◽  
Water Soluble ◽  
High Yield ◽  
Production Studies ◽  
Level Of Use ◽  
High Level ◽  
High Energy Consumption

Every country tries to be independent in everything, first of all it is necessary to have a high level of use of own energy resources. Due to the energy crisis, the transition from traditional energy sources to the integrated implementation of alternatives is relevant. The purpose of the study is complex processing of peat for fuel and extraction of humic substances for fertilizer production. Studies of extraction of humic substances were performed on a laboratory stand EI-10, which reproduces the work of a pulsating dispersant with an active diaphragm. The classical technology of extraction of humic substances using chemical methods is based on high temperatures of the mixture, which requires high energy consumption. It was proposed mode of extracting humic component developed by the standard rules, but changes in temperature and duration of extraction processing in an alkaline solution cavitation device. The use of cavitation in the technology of obtaining humic preparations makes it possible to achieve their high physiological activity, high yield of water-soluble organic substances. Briquetting was used to increase the energy density of solid fuel. Based on the research, the technology of obtaining humic fertilizers from peat was developed. The developed technology allows to be integrated into the existing production of the peat briquette plant and will allow to extract as much as possible humic substances from peat with essential reduction of temperature and extraction time with the subsequent application of liquid fraction as fertilizer.

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