|Title||Resource-saving technology of operating vertical drain-age wells based on drainage water re-use in irrigated massifs|
|Field of application||
|Usability of practice for adaptation to climate change||Moderate|
|Implemented by||Kazakh Scientific Research Institute of Water Economy (KazSRIWE) LLP
Province: South Kazakhstan Region
District: Maktaaral District
Settlement: Zhanaauyl Rural District
|Practice also applied in the following localities||
Fitting wells with pipeless water-lifting device (PWD) was widely tested and used to lift water from wells in Kazakhstan, Russia, Uzbekistan, and Kyrgyzstan
The Maktaaral Irrigation Massif has 220 vertical drainage wells (VDW), but currently practically all of them are not operational. The highest level of ground water occurrence in Maktaaral Irrigation Massif falls on December-February after completion of fall irrigation washings and water-charging. The beginning of vegetation season (April-May) is characterized by receding ground water table.
The second ground water table rise occurs during mass vegetation watering of main crops, as a rule in July-August.
The vertical drainage system in Maktaaral Irrigation Massif does not operate on permanent basis, but mainly during fall and winter (irrigation washing, water charging) and during the vegetation season at the time of insufficient irrigation water supply.
|Practice usage period||
Start date: 01.01.2016
End date: 31.10.2017
|Problem solved through this practice||
Deterioration of reclamation situation: raising ground water table and land salination. Intensified water withdrawal, saving on pipes, reusing ground water for irrigation
|Tools used in the practice||
Set of measures to enhance land reclamation condition (rehabilitation of vertical drainage well capacities, fitting them with equipment for pumping ground water via casing column)
|Description of the practice and its results||
The pipeless water-lifting device allows fixing the submersible pump at a set depth and dividing the well’s trunk into suction and injection zones.
Water lifting is done via the casing column and not the water-lifting pipe used in traditional well operation technology.
At the same time:
This technology of pumping underground water renders the possibility of intensifying water withdrawal due to creating vacuum in the pump’s suction zone.
|Lessons learnt and recommendations made||
There is a need to perform major repair of vertical drainage system with the aim of ensuring the timely diversion of drainage and waste water from the Maktaaral Irrigation Massif.
It is also necessary to identify the optimal environmental and reclamation conditions to prevent salination of irrigated massifs by way of re-using drainage water for irrigation.
The data on the chemical composition of drainage and waste water (as per reports by Southern Kazakhstan Hydro-Geological Reclamation Expedition) prove that in most cases such water can used for irrigation without the need to dilute it with clean irrigation water.
Required personnel capacity-building:
|Source of practice||
Domestic tools (outcomes of research by domestic R&D organizations)
|Brief information on the project||
Within the framework of 5039GF/4 Project supported via the financial grant on behalf of the Ministry of Education and Science (MoES) of Kazakhstan, several demo-sites were established in Maktaaral District of Southern Kazakhstan Region to hold trainings and practical seminars for specialists and to promote the new technology of pumping underground water via vertical drainage wells re-fitted with pipeless water-lifting devices.
Observations of ground water level were performed in the irrigation massif; optimal reclamation regime for irrigated land via vertical drainage wells based on the new technology was developed.
|Funding source||The technology was deployed under the grant project endorsed by the MoES of Kazakhstan|
Tumlert, V.A., Tumlert, E.V. “Outcomes of designing a device to pump underground water via well casing column” //Fair and rational use of natural resources – a way to the future (III Urkumbayev Readings): report abstract for scientific and technical conference, Taraz 2015, pp. 337-347;
Amangeldiyev, S.S. “Power-and-resource-saving technology of pumping underground water via well casing column with submersible pumps” // Khabar TV Channel, “Innovative Overdrive” Program (in the Kazakh and Russian languages), May 2015;
Tumlert, V. A., Yugai, I.A., Telgarayeva, G.E., Tumlert, E.V. “Introducing a new resource-saving technology of operating vertical drainage wells in irrigated massifs of Southern Kazakhstan Region” // ”Agrarian Science in Agriculture of Siberia, Kazakhstan, Belarus and Bulgaria”: report at the XIX International Scientific and Technical Conference, Minsk 2016, pp. 183-188;
Tumlert, V. A., Yugai, I.A., Ismailov, B.D. “Technology of pumping drainage water within the vertical drainage system in the irrigation massif of Southern Kazakhstan Region” // “Transboundary cooperation in Central Asia – stability and wellbeing of the whole region”: materials of international scientific and technical conference, Almaty 2017, pp. 181-187;
Tumlert, V. A., Yugai, I.A., Ismailov, B.D. “Intensifying water supply of distant pastures based on GIS-technologies” // “Prospects of innovative and investment development of the water sector”: materials of international scientific and technical conference, Kherson, Ukraine, May 18-19, 2017, pp. 133-137.
|Form submission date||18.05.2018|
|Print Compare with other practice|