Comparison of practices

• Use of water resources
• Use of land resources
• Re-use of drainage water for irrigation

Country: Kazakhstan

Province: South Kazakhstan Region

District: Maktaaral District

Other settlement: Zhanaauyl Rural District

Country: Uzbekistan

Province: Namangan Region

District: Pap District

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.

Предгорная засушливая зона; почвы - сильноводопроницаемые, подстилаемые галечниками; территория расположена ниже водохранилища «Жийдалисой»

Start date: 01.01.2016

End date: 31.10.2017

Start date: 01.01.2013

End date: 31.12.2014

Deterioration of reclamation situation: raising ground water table and land salination.  Intensified water withdrawal, saving on pipes, reusing ground water for irrigation

Нерациональное использование оросительной воды, удобрений; дефицит электроэнергии; низкий бонитет почвы, низкая урожайность сельхозкультур, низкое качество сельхозпродукции, эрозия почвы.

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)

• Using casing pipes in wells for water lifting requires application of a special (pipeless water-lifting) device.

Система безнапорного капельного орошения (СКО)

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:

• metal consumption and total weight of the pumping installation decreases by 60-90%;
• pollution of the water-bearing layer is excluded; assembly and dismantling costs decrease by 40-70%;
• power costs of water lifting decrease by 30%; water return of the water-bearing layer increases; possibility of polluting and/or infecting the water-bearing table is excluded making the suggested technology competitive.

 This technology of pumping underground water renders the possibility of intensifying water withdrawal due to creating vacuum in the pump’s suction zone.

Мероприятия:

СКО с естественным напором внедрена на территории водохранилища «Жийдалисой». СКО подключена к уже работающей сети трубопроводов, которые были предназначены для самотечного орошения. За счет разности отметок земли в начальной точке трубы и в начале орошаемого участка в системе создается естественный напор воды, который позволяет СКО сада работать без насосного оборудования, то есть без потребления электроэнергии.

Результаты:

Технические:
Вода и удобрение, благодаря использованию СКО, распределялись равномерно, строго по нормам, своевременно и экономно. Экономия водных ресурсов составила около 50%.

Финансово-экономические:
Достигнута прибавка урожая сельхозкультур (на 30-40 %) и улучшение их качества.
Сэкономлены 350 тыс. сум на гектар (150 $/га) за счет экономии электроэнергии и отказа от ремонта насосного оборудования.

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:

• continuous training of the staff of the Operational Section of Southern Kazakhstan branch of RSE “Kazvodkhoz” on assembly and dismantling of target equipment used for VDW re-fitting;
• drafting and disseminating training materials (operation recommendations, practical seminars and trainings).

Уроки:

Применение естественного напора воды позволяет сделать СКО более доступными для фермерских хозяйств, расположенных на склоновых землях предгорий.

Рекомендации:

Необходимо проведение изысканий для того, чтобы выявить места, где возможно использование СКО при естественном напоре воды.

Domestic tools (outcomes of research by domestic R&D organizations)

Отечественные инструменты (результат разработок отечественных научно-исследовательских структур)

1. Cost of implementation: High

2. Approximate cost of investment per 1 ha:

3. O&M costs: High

4. Expert support: Not needed

1. Cost of implementation: Moderate

2. Approximate cost of investment per 1 ha: Примерно 2,0-2,5 тыс. до

3. O&M costs: Moderate

4. Expert support: Needed at implementation stage

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.

Название: Инновационная научно-техническая работа «Внедрение СКО за счет использования естественного напора воды в водохранилище предгорной зоны».

Продолжительность: 2013–2014 гг.

Цели и задачи: Создать СКО, работающих без насосных оборудований.

Получатели выгод от его реализации: Сотрудники водохранилища «Жийдалисой» при Нарын-Сырдарьинском БУИС

Структура, ответственная за реализацию проекта: Государственный Комитет по Науке и Технике Республики Узбекистан (ГКНТ РУз).

Донор: ГКНТ РУз

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.

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