Farmland fertilization system of potato starch process water and application method thereof

Abstract

The invention provides a farmland fertilization system of potato starch process water and an application method thereof. The invention has the following process flows: (1) production water for washing starch and potato juice are mixed to form the process water by a centrifugal screen group and a swirler group and the process water enters an anti-seepage storage pool of the factory; (2) natural biological aeration treatment is performed for the process water of potato starch in the anti-seepage storage pool of the factory; (3) the process water after natural biological aeration treatment enters the field sub-pools by a pump station and a underground pipe network; (4) after the process water is diluted with clear water in a proportion of 1:1-1:3, in the field sub-pools, the diluted process water is used for farmland spray irrigation by a pressurizing pump station and a branch pipe network. In the invention, rich water farmland spray irrigation is used without affecting the cultivating area, thereby overcoming the deficiency that flooding is limited by farmland terrain. The spraying amount of the process water can be adjusted according to different farmland terrains so that the fertilizer efficiency of soil is uniform. Clear water dilutability of 1:1-1:3 is adopted, thereby saving the water resources effectively.

Description

Technical field:

[0001] The invention relates to a farmland fertilization system and an application method, in particular to a potato starch process water farmland fertilization system and an application method. Background technique:

[0002] Treating the process water produced by the potato starch processing industry as industrial wastewater is a major industry problem currently in the potato starch processing industry. With the strengthening of environmental management of industrial enterprises by the state, most potato starch processing enterprises are facing severe difficulties in survival. . At present, according to the country's traditional industrial wastewater treatment method (establishing biological anaerobic and aerobic wastewater treatment plants), it is very difficult to implement for the potato starch industry, as follows:

[0003] 1. In the potato processing industry, due to the seasonality of raw materials, the actual production time is very short, generally...

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