Experimental Study for Biogas Upgrading by Water Scrubbing with Adsorption Materials Used for Scrubber Packing

2013 ◽  
Vol 706-708 ◽  
pp. 113-117
Author(s):  
Li Huang ◽  
Jian Jun Hu ◽  
You Zhou Jiao ◽  
Ting Zhou Lei ◽  
Quan Guo Zhang
Keyword(s):  
Experimental Study ◽  
Hollow Sphere ◽  
Removal Rate ◽  
Raw Material ◽  
High Quality ◽  
Biogas Upgrading ◽  
Biogas Yield ◽  
The World ◽  
Materials Used

China have the biggest biogas yield in the world, but biogas quality is low and the utilizations of biogas are monotonous now, the shorting of appropriate upgrading technologies is impeding the developing and high quality using of biogas. With analog biogas as raw material, this study investigated biogas upgrading by water scrubbing with adsorption materials used for scrubber picking. Three sorts of packing-plastic hollow sphere, clay ring and zeolite pellet were chosen for the test and the experiments were operated under various pressures (0.65MPa、0.5MPa and 0.3MPa). The results showed that the adsorption packing could improve biogas upgrading effect, the removal rate of CO2 were better when use zeolite pellet( which have better adsorption) as packing compared with conventional plastic hollow sphere, and the results of clay ring(which have little adsorption) experiments were between the above two.

Characterisation of the Femtosecond Laser Micro-Grooving Process for Germanium Substrates

2016 ◽  
Vol 874 ◽  
pp. 291-296 ◽  
Author(s):  
Lin Li ◽  
Jun Wang ◽  
Huai Zhong Li
Keyword(s):  
Experimental Study ◽  
Process Parameters ◽  
Material Removal ◽  
Removal Rate ◽  
High Quality ◽  
Scan Speed ◽  
Micro Grooving ◽  
Fs Laser ◽  
Selection Of ◽  
Germanium Substrates

An experimental study is reported to characterise the femtosecond (FS) laser grooving process for Germanium (Ge) substrates. The effects of process parameters, including laser fluence, pulse repetition rate and scan speed, on the groove characteristics, material removal rate (MRR) and heat affected zone (HAZ) size are discussed. It is shown that with properly selected process parameters, high quality micro-grooves can be obtained on Ge wafers. Recommendations are finally made on the selection of the most appropriate process parameters for FS micro-grooving of Ge substrates.

scholarly journals Current situation and prospects for the horse meat market in Poland and the world

2019 ◽  
Vol 75 (02) ◽  
pp. 6203-2019 ◽  
Author(s):  
EWA JASTRZĘBSKA ◽  
TOMASZ DASZKIEWICZ ◽  
ALEKSANDRA GÓRECKA-BRUZDA ◽  
DINA FELIŚ
Keyword(s):  
Fatty Acid ◽  
Shelf Life ◽  
Raw Material ◽  
High Demand ◽  
High Quality ◽  
Biological Value ◽  
Horse Meat ◽  
The World ◽  
Low Levels ◽  
Meat Market

Humans have developed strong emotional connections with horses throughout the centuries, and horses continue to occupy a special place among other livestock animals. For this reason, horses are reared industrially for slaughter only in some countries. Horse meat is characterized by a high content of protein of high biological value and low levels of fat with a desirable fatty acid profile. Aged horse meat has a long shelf life, and it is an attractive food and raw material for further processing. The high demand for high quality raw horse meat creates new opportunities for breeders, and it could become an alternative or supplementary source of income for traditional livestock farms.

Impact of Raw Material Quality on Performance of Mixing and Charging Machines in Drilling and Blasting Operations

2021 ◽  
pp. 69-73
Author(s):  
T.S. Morozova
Keyword(s):  
Diesel Fuel ◽  
Raw Materials ◽  
Raw Material ◽  
Production Facility ◽  
High Quality ◽  
Equipment Failures ◽  
Hazardous Production ◽  
Materials Used ◽  
Incoming Inspection

A study into the failure causes of mixing and charging equipment confirms that the main impact on the probability of accidents is the use of raw materials that do not meet the specifications and have unstable properties. The raw materials used for explosives preparation in mechanized charging of boreholes include such components as ammonium nitrate, emulsion phase, diesel fuel, emulsifier and others. The paper describes the application of various formulations with these components in specific types of mixing and charging machines manufactured by AZOTTECH LLC. The main properties that affect the quality of raw materials are summarised, and the incoming inspection of explosive components is described as part of the acceptance procedure at temporary storage sites at a hazardous production facility. The paper describes common types of equipment failures and maintenance procedures when using substandard raw materials. The conclusion highlights the key practices to improve the equipment uptime as well as recommendations for incoming inspection and the use of high-quality explosive components.

scholarly journals Experimental Study on Strength of Concrete Partially Replacing Chiton shell as Fine Aggregate

2018 ◽  
Vol 7 (3.34) ◽  
pp. 406
Author(s):  
J Madhan Kumar ◽  
R Kalaiselvan ◽  
Raghul Raj
Keyword(s):  
Experimental Study ◽  
Tensile Strength ◽  
Natural Resources ◽  
Coarse Aggregate ◽  
Marine Organism ◽  
Raw Material ◽  
Partial Replacement ◽  
Fine Aggregate ◽  
Split Tensile Strength ◽  
The World

The most widely used material in the world is concrete, consequently there is a large requirement for raw material of concrete such as Fine Aggregate, Coarse Aggregate and cement. the huge extraction of the aggregate for manufacturing of concrete as serious effect on the environment due to depletion of natural resources and pollution. This affects the eco system to great extent. Hence the project deals with finding replacement for the existing raw material used in concrete by replacing the fine aggregate from river which is largely used in construction by chiton shell. Sea shell is the corpus of the marine organism. The sea shell has been grinded to 4.75mm and then replaced in the concrete. M20 mix was used and cubic specimen were casted for 5 different percentage of partial replacement as 0%, 5%, 10 %, 20%, and 25 %. All the specimens are tested for 7 & 28 days compressive, flexural and split tensile strength. it has been noted that the highest strength is obtained for 25% replacement of chiton shell. it was also observed that  addition of sea shell power in concrete reduced workability hence superplasticizer were added to improve the consistency. 

Experimental Study on Potential of Biogas Fermentation with Lily Straw

2012 ◽  
Vol 608-609 ◽  
pp. 396-401
Author(s):  
Hong Yang ◽  
Wu Di Zhang ◽  
Xing Ling Zhao ◽  
Jing Liu ◽  
Yu Bao Chen ◽  
...  
Keyword(s):  
Experimental Study ◽  
Anaerobic Digestion ◽  
Ph Value ◽  
Biogas Production ◽  
Gas Production ◽  
The Other ◽  
Raw Material ◽  
Production Potential ◽  
Biogas Yield ◽  
The Third

This paper studies on the biogas production yield of which use the lily straw as raw material and the fermentation is batch by batch at 30°C. In the third day of fermentation, fermented liquid became acidic. But it can be back to normal with the action of the anaerobic microbe. Its biogas yield is higher than the other group to adjust pH value. So gas production potential of the lily straw is 475ml/gTS and 573ml/gVS with 31 days of anaerobic digestion. The volumetric biogas production rate reaches 0.19ml/ml/d.

An Experimental Study on Bricks by Partial Replacement of Bagasse Ash

2019 ◽  
pp. 258-265 ◽  
Author(s):  
Prabhu P ◽  
Ramesh S ◽  
Archana M
Keyword(s):  
Experimental Study ◽  
Compressive Strength ◽  
Building Materials ◽  
Low Cost ◽  
Testing Machine ◽  
Project Work ◽  
Waste Materials ◽  
Partial Replacement ◽  
The World ◽  
Materials Used

The need for locally manufactured building materials has been emphasized in many countries of the world because of their easy availability & low cost. Bricks also have been regarded as one of the longest lasting and strongest building materials used throughout history. ordinary building bricks are made of a mixture of clay, which is subjected to various processes, differing according to the nature of the material, the method of manufacture and the character of the finished product. After being properly prepared the clay is formed in moulds to the desired shape, then dried and burnt. on seeing the present day demand for bricks, an attempt was made to study the behavior of bricks manufactured using, different waste materials like Bagasse ash with alumina sulphate, and lime was used to manufacture bricks. The main aim of this project was to compare the compressive strength of the bricks, so for this purpose different percentage of materials were separately added 6%, 8%, 16% & 20% by weight and then the compressive strength of the Bricks was established, and then with the help of graph a comparison between compressive strength of bricks, made out of Bagasse ash with alumina sulphate and normal brick was determined. Before manufacturing the bricks, different properties of the materials (Bagasse ash with alumina sulphate) was also verified. After that bricks were made & sun dried and some bricks were brunt & then with the help v of Compression Testing Machine (C.T.M.) finely their compressive strength was calculated. From this test in this project work it was concluded that the Bagasse ash was that waste material, which gave the acceptable compressive strength. The effects of the addition of Bagasse ash with alumina sulphate by percent-clay mix were also investigated. The admixtures were added in various combinations of proportions by weight (from 6 to 20%). The alumina sulphate, to contribute in attaining denser products with acceptable in compressive strengths, higher softening coefficients, lower water absorption rates, good compaction.

scholarly journals Organoleptic Properties of Chocolate Coated Chinese Chestnut

2021 ◽  
pp. 54-63
Author(s):  
G. Gupta ◽  
S. Mishra ◽  
A. Chakrobarty ◽  
P. Dubey ◽  
P. Shankar
Keyword(s):  
Experimental Study ◽  
Age Groups ◽  
Packaging Material ◽  
Raw Material ◽  
Physical Factors ◽  
Organoleptic Properties ◽  
Chinese Chestnut ◽  
The People ◽  
The World ◽  
Different Parts

Chinese chestnuts native to countries like Taiwan, China, Korea shows a great tool as to deal with several body ails. The main objective of this experimental study was to standardize and develop the value product from Chinese chestnut to alleviate ails in all age groups. Not only to add value to the product but also to introduce the nut to the people residing in different parts of but also to people all over the world. As there are limited number of studies focusing on the presence of vitamins in Castanea crenata, C. dentata and C. mollissima. The study was carried out to use Chinese chestnut with three different chocolates and flaxseeds for production of the confection- chocolate coated chestnut and flaxseed mix. The raw material was obtained from Uttarakhand and was processed later using methods like roasting, sun drying etc. For the packaging of the products, colorful foils were used as primary packaging material and then attractive cardboard boxes as the secondary packaging, which protects the confection against biological, chemical, physical factors. These confections were prepared from Chinese chestnut and are evaluated for their sensory properties. In sensory evaluation all three confection samples T1, T2, T3 were accepted.

scholarly journals Characterization and Development of EST-SSR Markers in Sweet Potato (Ipomoea batatas (L.) Lam)

2016 ◽  
Author(s):  
Jin-Hee Kim ◽  
Jun-Hoi Kim ◽  
Won-Sam Jo ◽  
Jung-Gwan Ham ◽  
Il Kyung Chung ◽  
...  
Keyword(s):  
Climate Change ◽  
Sweet Potato ◽  
Ssr Markers ◽  
Ipomoea Batatas ◽  
Expressed Sequence Tag ◽  
Animal Feed ◽  
Raw Material ◽  
World Population ◽  
High Quality ◽  
The World

According to statistics from the Food and Agriculture Organization, the world population will increase to about 91 million (Asia 51 million, Africa 19 million). A rise in the world’s population means an increased need for food. However, climate change has caused desertification and unpredictable weather, creating problems in the supply and demand of food. Sweet potato (Ipomoea batatas) is an alternative to solving the food problem, as it is one of the world’s most important food crops, especially in developing countries. The tuberous roots of sweet potato are usually used as staple food, animal feed, industrial material, or raw material for alcohol production. In the future, more variations of sweet potato will be needed for breeding this crop. Recently, molecular markers developed for sweet potato have demonstrated good potential for use in genetic selection. In this study, a cDNA library was constructed from the total RNA of sweet potato leaves. A total of 789 copies of the cDNA were cloned in Escherichia coli by employing the pGEM-T Easy vector. Sequencing was carried out by Solgent Co. (Korea). As many as 579 expressed sequence tag–simple sequence repeat (EST-SSR) markers were designed (73.38%) from the known cDNA nucleotide base sequences. The lengths of the developed EST-SSR markers ranged from 100 to 499 bp (average length 238 bp). Their motif sequence types were varied, with most being dinucleotides and pentanucleotides, and the most commonly found motifs were CAGAAT (29.0%) and TCT (2.8%). Based on these SSR-containing sequences, 619 pairs of high-quality SSR primers were designed using WebSat and Primer3web. The total number of primers designed was 144. Polymorphism was evident in 82 EST-SSR markers among 20 Korean sweet potato cultivars tested and in 90 EST-SSR markers in the two parents of a mapping population, Yeseumi and Annobeny. In this study, the hexaploid sweet potato (2n = 6x = 90) EST-SSR markers were developed in the absence of full-sequence data. Moreover, by acting as a molecular tag for particular traits, the EST-SSR marker can also simultaneously identify information about the corresponding gene. These EST-SSR markers will allow the molecular analysis of sweet potato to be done more efficiently. Thus, we can develop high-quality sweet potato while overcoming the challenges from climate change and other unfavorable conditions.

scholarly journals Conditioning techniques technogenic raw materials used for binders

2017 ◽  
Vol 2 ◽  
pp. 16-24
Author(s):  
Kochetkov S.P. ◽  
Bryl S.V. ◽  
Smirnov N.N. ◽  
Rukhlina N.I. ◽  
Rukhlin G.V.
Keyword(s):  
Air Conditioning ◽  
Building Materials ◽  
Raw Materials ◽  
Raw Material ◽  
High Quality ◽  
Calcium Carbonates ◽  
Materials Used ◽  
Technogenic Raw Materials

For production of binding building materials in Russia and worldwide, used a variety of calcium-containing natural raw material: calcium carbonates, aragonite (CaCO3); sulfates-gypsum (CaSO4∙2H2O,CaSO4); oxides and hydroxides (bauxite glinozemservice); perforate-apatites and phosphates (Ca5∙(PO4)3∙F). The article discusses the need for air-conditioning of phosphogypsum to ensure that he was suitable without restrictions for processing into high-quality gypsum binders.

Influence of the quality of raw materials on the composition and theconditions for the fermentation of apple juice

2021 ◽  
pp. 92-95
Author(s):  
Мадина Борисовна Хоконова ◽  
Ирина Шамильевна Дзахмишева ◽  
Алим Борисович Хоконов
Keyword(s):  
Dry Matter ◽  
Apple Juice ◽  
Raw Materials ◽  
Sugar Content ◽  
Titratable Acidity ◽  
Matter Content ◽  
Raw Material ◽  
Dry Matter Content ◽  
High Quality ◽  
Materials Used

Плодовый спирт получают путем спиртового брожения плодово-ягодного сока, мезги свежих плодов или выжимки после отжатия сока. Переработка нестандартной части плодово-ягодного сырья, а также вторичная переработка отходов с целью получения плодового спирта - выгодное направление, повышающее эффективность работы винодельческих предприятий и увеличивающее ассортимент выпускаемых продуктов. На основе качественного плодового спирта получают слабоалкогольные напитки типа сидра. Работа посвящена изучению способов улучшения технологических качеств плодового сырья, используемого для получения спирта, а также качественных виноматериалов для производства сидра на ООО «Чегемский Винпищепром». Установлено, что сырье характеризуется низкой величиной глюкоацидометрического показателя. Для яблок он составляет 5,8-8,8. Количество сухих веществ варьирует у сортов в пределах 9,5-11,0 %. Максимум отмечен у сорта Ренет Симиренко. Меньшее содержание сахаров отмечено у сорта Айдаред, максимальное - у сорта Джонатан. Титруемая кислотность у данных сортов варьирует от 5,5-6,0. Определена разница между яблочным соком и спиртом-сырцом по химическому составу. Крепость спирта-сырца составляет 59,3-60,3 %об. Яблочный спирт получали путем дистилляции периодическим способом. Определено, что температура охлаждения сусла не зависит от скорости сбраживания. Наиболее пригодные для производства сидра сорта яблок Айдаред, Джонатан с содержанием сухих веществ 9,5-10,0 % и скоростью сбраживания 1,5 г/л.ч. Fruit alcohol is obtained by alcoholic fermentation of fruit and berry juice, pulp of fresh fruits or pomace after squeezing the juice. Processing of non-standard parts of fruit and berry raw materials, as well as recycling waste, in order to obtain fruit alcohol, is a profitable direction that increases the efficiency of wineries and increases the range of products. Low-alcohol drinks such as cider are produced on the basis of high-quality fruit alcohol. The work is devoted to the study of ways to improve the technological qualities of fruit raw materials used to obtain alcohol, aswell as high-quality wine materials for the production of ciderat OOO Chegemsky Vinpischeprom. It was found that the raw material is characterized by a low glucoacidometric indicator. For apples, it is 5,8-8,8.The amount of dry matter varies in varieties within 9,5-11,0%.The maximum was observed in the Renet Simirenko variety. The lower sugar content was noted in the Idared variety, the maximum in the Jonathan variety. The titratable acidity of these varieties varies from 5,5-6,0.The chemical composition difference between apple juice and raw alcohol was determined. The strength of the raw alcohol is 59,3-60,3% vol. Apple alcohol was obtained by distillation in a batch wise manner. It has been determined that the cooling temperature of the wort does not depend mainly on the rate of fermentation. The most suitableapple varieties for the production of cider are Idared, Jonathan with a dry matter content of 9,5-10,0% and a fermentation rate of 1,5 g/l.H.

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