Investigations on the Performance of a Mechatronic System for Water Well Rehabilitation Using High Power Ultrasonics

2014 ◽  
Author(s):  
Robert Brehm ◽  
Peer Locher ◽  
Johan Linderberg
Keyword(s):  
High Power ◽  
Special Focus ◽  
Ultrasonic Cleaning ◽  
Impaired Performance ◽  
Cleaning Method ◽  
Water Wells ◽  
Well Clogging ◽  
Water Well ◽  
Ultrasound Intensity ◽  
Well Rehabilitation

In Denmark the public water supply is practically 100% served by groundwater abstracted from nearly 20.000 water wells. During time of operation the productivity from a well will often decrease drastically. This impaired performance is usually caused by well clogging. This clogging makes the well economically inefficient for the operator and therefore needs to be rehabilitated. This article examines the performance and evaluates the effectiveness of high power ultrasonics for water well rehabilitation. Special focus is drawn to the inconsistent efficiency of the currently, rarely used ultrasonic cleaning method caused by the specific varying conditions in water wells and correlated ultrasound intensity losses. The scope for improving the, in Denmark, rarely used ultrasonic cleaning method efficiency is investigated and suggestions for improvements based on a proof-of-concept prototype are given based on empirical- as well as theoretical studies.

scholarly journals Saringan Cangkang Telur Bebek Efektif Memperbaiki Kualitas pH Dan Kadar Besi Air Sumur Bor

2021 ◽  
Vol 18 (1) ◽  
pp. 13
Author(s):  
Rahmatullah Jati Pradopo ◽  
Sulaiman Hamzani ◽  
Syarifudin A.
Keyword(s):  
Preliminary Test ◽  
Control Group ◽  
Water Wells ◽  
Trial Analysis ◽  
Water Well ◽  
Egg Shells ◽  
Duck Egg ◽  
Filter Thickness ◽  
Test Result

Water well drill that is in the Pondok Pesantren Hidayatullah Banjarbaru seen physically yellowish and smelly. Preliminary test result obtained pH 4.9 and Fe 2.5 mg/L. Based on the quality of clean water standards have not fulfilled the requirements of 1.0 mg/L and pH 6.5-8.5. It needs to be done research test of duck egg filter making in improving the quality of pH and Fe water well drill. The goal of this research is to know the effectiveness of duck egg filter in improving the quality of pH and Fe water wells drill. Types of research are experiments with pretest-posttest with control group. The population in the research is the whole water well drill in the Pondok Pesantren Hidayatullah Banjarbaru. A research sample is a water well drill that is partially taken for trial. Analysis of the influence thickness of the sieve using Anova asymp Test < œ (0.000 < 0.05) means there is a difference between the filter thickness of duck egg, 0 cm, 20 cm, 40 cm, 60 cm. Then done test Posh Hoc Tests can be concluded that there is a meaningful difference between the thickness of the filter of ducks egg shells 0 cm, 20 cm, 40 cm, 60 Based on the research results of the sieve 40 cm with a weight of 291 gram is an effective sieve in lowering the water level of the well drill.

HUBUNGAN KONSTRUKSI SUMUR DAN PERILAKU PENGGUNA TERHADAP FECAL COLIFORM (STUDI KASUS PADUKUHAN JARAN, DESA PANGUNGHARJO, SEWON, BANTUL )

2018 ◽  
Vol 11 (1) ◽  
Author(s):  
Eva Runi Khristiani
Keyword(s):  
Fecal Coliform ◽  
P Value ◽  
Significant Relation ◽  
Cross Sectional ◽  
Is Research ◽  
Water Wells ◽  
Water Well ◽  
Fecal Content ◽  
And Behavior ◽  
Transmission Of Disease

ABSTRACTWater is a source of life , as media in addition to the transmission of disease .Infectious disease covering: typhoid epidemics , cholera , diarrhea and hepatitis .The existence of bacteria in the water caused by several factors includes: construction wells and behavior .This research aims to explain several factors that deals with water quality bakteriologis a well in the heartland , assessing constructed wells the influence of the most influential against fecal coliform content water wells dug , influence behaviorassessing the wearer of a well in practice against the content of fecal coliform water wells dug and give advice / input the environmental management in development physical building a well and knowingsource pollution dominan.jenis research that is done is research observation with the design of cross sectional. This research using purposive , proportional , and random sampling ( multistate ), links between construction well dig and behavior in discharging well dig in the form of action with fecal coliform .The research results show that the correlation between construction well dig with fecal coliform p value = 0,000 this showed that the physical condition of well have leverage a significant impact on fecal content coliform in water well dig , while the correlation between behavior by fecal coliform indicated a significant relation  ( p value = 0,011 )

Geological and geophysical studies results on the territory of a constructed poultry farm to determine a place for water well drilling, Iskitim area, Novosibirsk region

2020 ◽  
Author(s):  
Alexey N. Faguet ◽  
◽  
Aydisa M. Sanchaa ◽  
Olga V. Shemelina ◽  
◽  
...  
Keyword(s):  
Electrical Resistivity ◽  
Electrical Resistivity Tomography ◽  
Poultry Farm ◽  
Complex Behavior ◽  
Resistivity Tomography ◽  
Well Drilling ◽  
Novosibirsk Region ◽  
Water Wells ◽  
Water Well ◽  
Geophysical Study

In this article we present the results of electrical resistivity tomography (ERT) study on the grounds of a constructed duck farm in the Iskitim area of Novosibirsk Region. The area is characterized by complex behavior of the aquifer, – yields from water–wells vary up to six times (from 1.5 to 9 m3 /hour). Considering the importance of the constructed object and demand for steady water supply, after the first ill experience of “blind drilling”, a geophysical study was made to determine optimal places for water wells.

631 The ultrasonic cleaning method using the reflectors and acoustic lens

2014 ◽  
Vol 2014.67 (0) ◽  
pp. _631-1_-_631-2_
Author(s):  
Youhei Mutaguchi ◽  
Takahiro Kasahara ◽  
Hirotoshi Egashira ◽  
Tokitada Hashimoto ◽  
Shigeru Matsuo ◽  
...  
Keyword(s):  
Ultrasonic Cleaning ◽  
Cleaning Method ◽  
Acoustic Lens

scholarly journals Early Holocene water well in the Pampas of Argentina: Human responses to water shortage events

The Holocene ◽  
2018 ◽  
Vol 29 (1) ◽  
pp. 145-157
Author(s):  
Gustavo Martínez ◽  
María A Gutiérrez
Keyword(s):  
Surface Water ◽  
Material Culture ◽  
Water Shortage ◽  
The United States ◽  
Early Holocene ◽  
Behavioral Repertoire ◽  
Water Wells ◽  
Water Well ◽  
Cultural Origins ◽  
Response To Water

Water wells are ethnographically and archaeologically described in Australia and the plains of North America. Recently, a prehistoric water well from the early Holocene was recorded in the Pampas of Argentina. The aim of this paper is to present the main characteristics of the water well, considering its form, dimension, sediment analyses (texture and chemical parameters), and material culture content. This is the first water well recorded in the Pampas of Argentina. Consequently, a discussion about natural or cultural origins of this kind of features is provided. An evaluation of similarities and differences with well-described water wells from the United States and Australia is included in order to highlight the cultural origin of the pit. Also, the meaning of the cultural response to water availability in terms of early-Holocene hunter–gatherer adaptations as well as the implications of this strategy for understanding paleoenvironmental scenarios of the Pampas of Argentina are discussed. The well seems to have mitigated an exceptional lack of surface water in the eastern Pampas or offered an alternative for the non-drinkable quality of the available surface water. The strategy of digging water wells was available in the behavioral repertoire of the Pampean hunter–gatherer populations as early as c. 8700–8000 14C yr BP ( c. 9700–8800 cal. yr BP), as these groups were fairly flexible and resilient in dealing with short-term shortages of water.

The potential use of hydrogen peroxide in water well rehabilitation

2009 ◽  
Vol 23 (1) ◽  
pp. 69-74 ◽  
Author(s):  
F. C. Brassington ◽  
J. P. Whitter ◽  
R. A. Macdonald ◽  
J. Dixon
Keyword(s):  
Hydrogen Peroxide ◽  
Water Well ◽  
Well Rehabilitation ◽  
Potential Use

scholarly journals THEORETICAL STUDIES OF THE LEACHING PROCESS OF THE MUDDING ELEMENT IN THE GRAVEL PACKAGE OF THE WELL FILTER USING THE UNIT FOR REVERSE-REAGENT REGENERATION

2018 ◽  
Vol 61 (1) ◽  
pp. 80-92 ◽  
Author(s):  
I. E. Ivanova ◽  
V. V. Ivashechkin ◽  
V. V. Veremenyuk
Keyword(s):  
Computer Program ◽  
Operating Time ◽  
Mass Conservation ◽  
Sodium Dithionite ◽  
Filter Regeneration ◽  
Water Wells ◽  
Water Well ◽  
Displacement Pump ◽  
Predetermined Level ◽  
Pneumatic Displacement

During the operation of water wells, their specific production rate is reduced as a result of mechanical, biological and chemical colmatage. The extraction of the mudding element from the filter is complicated by the fact that the deposits cover not only the well filter, but also gravel package and are not completely removed by the treatment. An installation is proposed for reversereagent regeneration of water wells, consisting of a compressor, hoses and submersible device in the form of a two-chamber pneumatic displacement pump. The advantage of the unit is the absence of a circulating pump in its composition and the possibility of efficient processing of the limited filter interval. The downhole submersible device does not contain moving parts except for two floating check valves. In order to describe the process of dissolution of deposits by the method of reverse-reagent water well regeneration, a system of equations is used: the combined equation of motion and mass conservation and the generalized equation of kinetics. By integrating the kinetics equation, an analytical dependence is obtained to calculate the operating time of the unit for reverse-reagent filter regeneration, followed by the reducing of the specific volume of the colmatizing deposits in the gravel package to a predetermined level. According to the formulas obtained, a computer program was compiled, which allows calculating the number of operating cycles of the device, the duration of cleaning and the degree of removal of the colmatant at each stage of the work. With the aid of the developed computer program, the operation of the unit for reverse-reagent filter regeneration is considered on behalf of a water well using two different reagents: hydrochloric acid and sodium dithionite. The procedure for calculating the amount of reagent needed to restore water well productivity is presented.

Water well acidization revisited: includes oil and geothermal well perspectives

2020 ◽  
pp. qjegh2020-071
Author(s):  
Andreas N. Charalambous
Keyword(s):  
Hydrochloric Acid ◽  
Lower Cost ◽  
Oil And Gas ◽  
Fractured Rock ◽  
Oil And Gas Industry ◽  
Gas Industry ◽  
Water Wells ◽  
Water Well ◽  
Geothermal Wells ◽  
Scale Deposits

Borehole acidization has two objectives: to remove drilling damage at the well face and to enhance formation permeability. Acid applications have been mainly on carbonates, granitic and metamorphic rocks in geothermal wells and on sandstones in oil and gas wells. In geothermal wells, acidizations have been especially useful in removing accumulated scale deposits. Hydrochloric acid is the most commonly used as it has a high dissolving power, a lower cost and is relatively easy to handle. It reacts easily with carbonates but not with silicates in sandstones for which a mixture of hydrofluoric and hydrochloric acid is used. There are no known water well acidizations with hydrofluoric acid. Acidization of limestone water wells with hydrochloric acid has been generally successful in naturally fractured rock with productivity improvements of two or more times the original yield. Second and third acidizations can enhance yields further and are usually economically justifiable. Water well acidizations may benefit from higher injection rates than is currently practised. Acid fracturing is widely used in the oil and gas industry. In water wells it may prove useful in hard crystalline limestones, but not in soft low strength carbonates, such as UK Chalk.

The Pre-Pottery Neolithic Water-well at Tell Seker al-Aheimar, Upper Mesopotamia: The Social Contexts of its Construction and Management

2021 ◽  
pp. 1-12
Author(s):  
Yoshihiro Nishiaki
Keyword(s):  
Social Contexts ◽  
Mediterranean Coast ◽  
Polluted Water ◽  
Detailed Data ◽  
Major Purpose ◽  
Community Activities ◽  
Water Wells ◽  
The Social ◽  
Water Well ◽  
Spatial Positioning

The water-well recovered from a Late Pre-Pottery Neolithic B (PPNB) level in Tell Seker al-Aheimar, Northeast Syria, represents the oldest well thus far known in Upper Mesopotamia. It demonstrates that the construction of water-wells was a wide-spread practice among the PPNB communities across Cyprus, the Mediterranean coast, and now a far inland region of Upper Mesopotamia. This article provides detailed data on the water-well’s excavation and its stratigraphy, morphology, spatial positioning in the settlement, dating, and associated artefacts. An important implication of these data is that the construction and use of this well involved community activities that may have included rituals. Further, its location close to the Khabur River suggests that the well was not constructed to merely obtain fresh water; its major purpose could have been to guarantee the procurement of non-polluted water as this was an increasing concern among the developing Neolithic villages. On the whole, the water-well of Tell Seker al-Aheimar gives us important insights that develop our understanding of the Neolithisation processes of the region, notably the ‘domestication of water’.

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