Sediment treatment controllable irrigation type saline-alkali land improvement system

Abstract

The invention discloses a sediment treatment controllable irrigation type saline-alkali land improvement system. The system comprises a solar power-generating device, a fresh water tank, an irrigationdevice, a semi-permeable membrane, a drainage device, a sand removal device and a saline-alkali water purification tank. The fresh water tank is communicated with the irrigation device, the irrigation device uniformly sprays water to the surface of saline-alkali land to realize irrigation, underground saline-alkali water is drained by the drainage device, and after sediment removal through the sand removal device, water enters the saline-alkali water purification tank and then enters the fresh water tank after purification, so that water resources are saved. The semi-permeable membrane is arranged at a position 40-50cm under the saline-alkali ground, and the burial depth is larger than that of the top of the drainage device, so that reverse osmosis of the underground saline-alkali water to the ground can be prevented. The solar power-generating device supplies electric energy to motors of the drainage device and the irrigation device, and convenience and energy saving are realized. The saline-alkali land improvement system has advantages that water resource recycling is realized during saline-alkali soil improvement, energy saving is realized, and influences on growth of ground crops due to reverse osmosis of the underground saline-alkali water to the ground can be prevented effectively.

Description

technical field [0001] The invention relates to the field of saline-alkali land improvement, in particular to a saline-alkali land improvement system with controllable irrigation for sediment control. Background technique [0002] Saline-alkali land is a type of salt accumulation, which means that the salt contained in the soil affects the normal growth of crops. The formation of alkaline soil and alkalized soil in my country is mostly related to the accumulation of carbonate in the soil, so the degree of alkalization It is generally higher, and plants in severe saline-alkali soil areas can hardly survive. The fundamental reason for the formation of saline-alkali soil is poor water conditions, so in the early stage of improvement, the focus should be on improving soil water conditions. Generally, it is carried out in several steps. First, drain and wash salt to reduce the salinity content of the soil; then plant salt-resistant plants to fertilize the soil; finally plant crops...

AI Technical Summary

Problems solved by technology

However, flood irrigation can easily cause waste of water resources, and if drainage is not timely, groundwater will rise, causing secondary salinization of soil

Moreover, none of the existing saline-alkali land improvement technologies can effectively prevent the underground saline-alkali water from infiltrating into the ground, causing secondary salinization of the soil.

[0004] In addition, saline-alkali land is mostly located in relatively remote places, and it is inconvenient to lead electricity and water, and the transformation and treatment are also greatly restricted. As a sustainable clean energy, solar energy is irreplaceable. How to better realize it The recycling of water resources, and how to better use solar energy in the improvement of saline-alkali land, so that the improvement of saline-alkali land can achieve higher economic value, is also a problem worth looking forward to

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