Усовершенствованная конструкция оголовка самоизливающейся скважины

2020 ◽  
Author(s):  
B. Opryshko ◽  
V. Shvetsov ◽  
O. Belavina
Keyword(s):  
Drinking Water ◽  
High Strength ◽  
Climatic Conditions ◽  
Automated Monitoring ◽  
Water Well ◽  
Technological Tools ◽  
Monitoring Costs ◽  
Improved Design

Предложена усовершенствованная конструкция оголовка самоизливающейся водозаборной скважины. Оголовок относится к области технических средств, используемых для проведения автоматизированного мониторинга месторождений подземных питьевых вод с помощью погружных автономных датчиков-регистраторов. Оголовок используется на скважинах, расположенных на неохраняемых территориях. Показано, что установка данного оголовка на самоизливающихся скважинах позволяет автоматизировать мониторинг подземных питьевых вод на неохраняемых территориях при различных климатических условиях. При этом повышается точность результатов мониторинга, снижаются затраты на его проведение. Усовершенствованная конструкция оголовка имеет повышенную прочность.An improved design of the head of a blowing water well is proposed. The head falls within the domain of technological tools used for automated monitoring of underground drinking water deposits with the help of submerged stand-off recording sensors. The head is used in wells located in unguarded areas. It is demonstrated that the heads installed on blowing wells provide for automated monitoring of underground drinking water in unguarded areas under various climatic conditions. Herewith, the results of the monitoring improve, whereas the monitoring costs decrease. The improved design of the head is characterized by high-strength.

scholarly journals Concrete based on sulfur binder being modified with inorganic additives

2018 ◽  
Vol 212 ◽  
pp. 01013
Author(s):  
Vadim Balabanov ◽  
Victor Baryshok ◽  
Nikita Epishkin
Keyword(s):  
Frost Resistance ◽  
Building Materials ◽  
Physical And Mechanical Properties ◽  
High Strength ◽  
Strength Properties ◽  
Climatic Conditions ◽  
Freezing And Thawing ◽  
Concrete Mixtures ◽  
Irkutsk Region ◽  
Water Saturated

The sharply continental climate of the Irkutsk region is characterized by wide temperature intervals throughout the year. The repeated cyclicity of freezing and thawing of building materials in the water-saturated state influences the change in technical characteristics and the durability of concrete products and structures. The concrete products’ features in such climatic conditions create the need for the production of concretes with improved indicators of physical and mechanical properties. The effect of modifying additives on the technological characteristics of sulfur concrete is established. The effect of all elements of sulfur concrete on its strength and frost resistance. The composition of sulfuric concrete is obtained, which meets all the requirements and also has high strength and increased frost resistance. Formulations with a certain ratio of structural sulfuric concrete mixtures were developed. As a result of the use of technical sulfur in the composition of concrete products, the problem of utilizing annually accumulating reserves of technical sulfur is partially solved. The strength properties of sulfuric concretes easily compete with high-quality brands of concrete, special types of concretes that have in their composition additives.

scholarly journals Production and Purification of Water from Humid Air by Using Activated Carbon Method

2018 ◽  
Vol 7 (4.24) ◽  
pp. 688
Author(s):  
R. Gnanasekaran ◽  
Ramya. K ◽  
D. Yuvaraj ◽  
Noorul Jamela
Keyword(s):  
Drinking Water ◽  
Climatic Conditions ◽  
Dew Point ◽  
Peltier Effect ◽  
Toxic Substances ◽  
Humid Air ◽  
Hot Air ◽  
Is Design ◽  
Water Purity ◽  
Purification Of Water

Drinking Water scarcity is one of the leading issue in our growing world. The atmospheric air contains large amount of water in the form of water vapor, fog, mist etc.In which 30% of water is wasted.Under this situation the climatic conditions of many regions are suitable for generating water. This moisture content is processed by condensation principle to produce fresh water that may be used as distilled water in laboratory and further purification leads to drinking water purity level. Here cooling is produced by Peltier effect and hot air is passed to cooling medium and when it reaches dew point it start condensing water from air. The obtained water from air contain excess of contaminants such as bacteria, nitrate, nitrate, odor, ammonium etc.., these toxic substances are remove by using biofiltration method. In this research filter medium is constructed by extraction of Activated charcoal from coconut waste. . The main aim of our project is utilization of renewable resources that are already available in nature and turn back this energy into water. This project is design a device that can convert humid air directly into clean water.    

Use of automated monitoring to estimate the load of turbidity entering a drinking water reservoir

2008 ◽  
Vol 30 (1) ◽  
pp. 113-116
Author(s):  
D.C. Pierson ◽  
R.K. Gelda ◽  
S.W. Effler ◽  
D.M. O'Donnell ◽  
A.R. Prestigiacomo
Keyword(s):  
Drinking Water ◽  
Water Reservoir ◽  
Automated Monitoring ◽  
Drinking Water Reservoir

Spun Steel Pipes for the Offshore Industry

1983 ◽  
Vol 105 (1) ◽  
pp. 97-102 ◽  
Author(s):  
A. Royer ◽  
B. Dumas ◽  
M. Gantois
Keyword(s):  
Mechanical Properties ◽  
Chemical Composition ◽  
Centrifugal Casting ◽  
High Strength ◽  
Controlled Rolling ◽  
Climatic Conditions ◽  
Casting Technique ◽  
Steel Pipes ◽  
Potential Applications ◽  
Offshore Industry

Many parts either for sea-line pipes as “buckle” or “crack arrestor,” or for structures may require the use of wall tubular products with high mechanical properties. Such heavy-wall pipes may be produced by centrifugal casting. Two Mn-Mo steels have been developed for medium-wall pipes (e≤35 mm) to be used under very severe climatic conditions: an acicular ferritic steel, a pearlite reduced steel produced by controlled rolling techniques [1, 2, 3]. More alloyed chemical composition and heat-treatments are needed to produce heavy-wall pipes. Then, production of such pipes is more difficult and sometimes impossible. Observations made on controlled-rolled Mn-Mo steel led to a better understanding of the influence of metallurgical structures and chemical composition on steel characteristics. Similar metallurgical structures can only be reached via other routes, for example centrifugal-casting of steel associated with heat-treatment, lead to the production of heavy-wall pipes with high strength and suitable transition temperature. After a brief description of the centrifugal casting technique, we introduce the grades developed for heavy-wall pipes with yield strength up to 100,000 psi. The mechanical properties, Battelle, fatigue, static bending, C.O.D., weldability, etc., of Centrishore II are given and compared to other materials. Possible offshore applications and other potential applications of parts produced by centrifugal casting are described.

Failure Analysis and Transmission Parameters Optimization Design of WN Gears Drive

2012 ◽  
Vol 229-231 ◽  
pp. 449-452 ◽  
Author(s):  
Xiao Kai Mu ◽  
Yu Guang Li ◽  
Dian Hua Chen ◽  
Cheng Chao Li
Keyword(s):  
Failure Analysis ◽  
Engineering Design ◽  
Optimization Design ◽  
Optimization Problems ◽  
Design Method ◽  
High Strength ◽  
Parameters Optimization ◽  
Transmission Parameters ◽  
Compact Size ◽  
Improved Design

This paper taking the high strength of WN gears drive as target, which makes the WN gear device has light weight and compact size. The WN gears drive optimization design model of actual project is put forward by multiple-factor comprehensive failure analysis. The research is to solve nonlinear constrained optimization problems by the method of sequence quadratic programming (SQP) in MATLAB optimization toolbox. Using the optimization program of engineering design examples to analyze the relationship about gear drive parameters on contact and bending fatigue strength, thus the engineering design method of the WN gears drive is improved. This research not only achieved the optimization design of WN gears drive, but also revealed that the interactions between transmission parameters and strength design of the gear, which improved design efficiency and provided application foundation for CAD design of WN gears driving.

Lessons learned from the 2013 Calgary flood: Assessing risk of drinking water well contamination

2017 ◽  
Vol 80 ◽  
pp. 78-85 ◽  
Author(s):  
Kristin M. Eccles ◽  
Sylvia Checkley ◽  
Darren Sjogren ◽  
Herman W. Barkema ◽  
Stefania Bertazzon
Keyword(s):  
Drinking Water ◽  
Lessons Learned ◽  
Water Well

scholarly journals Domestic wells have high probability of pumping septic tank leachate

2011 ◽  
Vol 8 (3) ◽  
pp. 5701-5732
Author(s):  
J. E. Horn ◽  
T. Harter
Keyword(s):  
Drinking Water ◽  
Rural Areas ◽  
High Probability ◽  
Transport Model ◽  
Regional Scale ◽  
Septic Tank ◽  
Septic Systems ◽  
Capture Zone ◽  
Septic System ◽  
Water Well

Abstract. Onsite wastewater treatment systems such as septic systems are common in rural and semi-rural areas around the world; in the US, about 25–30 % of households are served by a septic system and a private drinking water well. Site-specific conditions and local groundwater flow are often ignored when installing septic systems and wells. Particularly in areas with small lots, thus a high septic system density, these typically shallow wells are prone to contamination by septic system leachate. Typically, mass balance approaches are used to determine a maximum septic system density that would prevent contamination of the aquifer. In this study, we estimate the probability of a well pumping partially septic system leachate. A detailed groundwater and transport model is used to calculate the capture zone of a typical drinking water well. A spatial probability analysis is performed to assess the probability that a capture zone overlaps with a septic system drainfield depending on aquifer properties, lot and drainfield size. We show that a high septic system density poses a high probability of pumping septic system leachate. The hydraulic conductivity of the aquifer has a strong influence on the intersection probability. We conclude that mass balances calculations applied on a regional scale underestimate the contamination risk of individual drinking water wells by septic systems. This is particularly relevant for contaminants released at high concentrations, for substances which experience limited attenuation, and those being harmful even in low concentrations.

scholarly journals The occurrence of Aeromonas spp. in the bottled mineral water, well water and tap water from the municipal supplies

2008 ◽  
Vol 51 (5) ◽  
pp. 1049-1055 ◽  
Author(s):  
Denise de Oliveira Scoaris ◽  
Fernando Cezar Bizerra ◽  
Sueli Fumie Yamada-Ogatta ◽  
Benício Alves de Abreu Filho ◽  
Tânia Ueda-Nakamura ◽  
...  
Keyword(s):  
Drinking Water ◽  
Water Samples ◽  
Mineral Water ◽  
Tap Water ◽  
Indicator Bacteria ◽  
Well Water ◽  
Total Coliforms ◽  
Water Well ◽  
Artesian Water ◽  
Bottled Mineral Water

The aim of this work was to study the occurrence of Aeromonas sp in the bottled mineral water, well water and tap water from the municipal supplies. Positive samples were found for Aeromonas spp. 12.7% from the mineral water, 8.3% from the artesian water and 6.5% from the tap water. The recovery of Aeromonas spp. was significantly higher in the bottled mineral and artesian water than in the tap water from municipal supplies. The occurrence of the Aeromonas spp. did not correlate significantly with the contamination indicator bacteria (i.e. total coliforms) in the artesian water samples. However, a significant correlation was found between Aeromonas spp. and total coliforms in the both mineral water and tap water samples. The presence or absence of a correlation between the indicator bacteria and Aeromonas could reflect the occasional appearance of the pathogen in the drinking water and the different rates of survival and recovery of these agents compared with those fecal indicators. The finding that 41.6, 14.8 and 9.0 % of the artesian water, bottled mineral water and tap water, respectively, sampled in the current study failed to meet the Brazilian standard for total coliforms in the drinking water should therefore be of concern.

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