System for repairing saline and alkaline land by means of underground water circulation

The utility model provides a system for repairing saline and alkaline land by means of underground water circulation. The system comprises a pumping well located at a saline and alkaline land region. A water pump is matched with the pumping well. A water outlet pipe of the water pump is connected wi...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: CHEN JUNHUA, SHAN HUIFENG
Format: Patent
Sprache:eng
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Beschreibung
Zusammenfassung:The utility model provides a system for repairing saline and alkaline land by means of underground water circulation. The system comprises a pumping well located at a saline and alkaline land region. A water pump is matched with the pumping well. A water outlet pipe of the water pump is connected with a pipe network system. The pipe network system is provided with spray nozzles. The surface layer of the saline and alkaline land region is paved with an active filler layer. The spray nozzles are located on the active filler layer. According to the system for repairing the saline and alkaline land by means of underground water circulation, underground water at the normal position is effectively utilized for reducing the saline and alkaline of soil, and the phenomena that in a large-scale water conservancy project, due to the facts that water permeates the active filler layer and permeates downwards, and the water carries microorganisms and acidic secondary products of the active filler layer and permeates an underground water layer through the saline and alkaline land, the acidic secondary products and alkaline matter are neutralized, and components with salt are sprayed to the underground water layer are avoided; due to the filler like a slow-release carbon source facilitating microorganism growth, the soil alkalinity is kept on the proper level for a long time.