Anti-blockage system and method for irrigating biogas slurry

Abstract

The invention discloses an anti-blockage system and method for irrigating biogas slurry, belonging to the field of biogas slurry irrigation. The system is characterized by comprising a biogas slurry supply branch and a clear water supply branch, thus realizing mixed irrigation and independent irrigation of biogas slurry and clear water; a soil moisture detection device and a controller are adopted to respectively control the supply quantities and mixing ratio of biogas slurry and clear water aiming at the actual moisture and fertilizer demands of the crops, thus realizing scientific and automatic irrigation of the crops; and in addition, clear water supply is not finished after finishing irrigation but clear water is adopted to wash the pipe networks in the biogas slurry irrigation districts to remove the residual organic components of the biogas slurry in the pipe networks in the biogas slurry irrigation districts, thus avoiding that microorganisms in the biogas slurry are reproduced and grow in the pipe networks in the biogas slurry irrigation districts and block the pipe networks in the biogas slurry irrigation districts.

Description

technical field [0001] The invention relates to a biogas slurry irrigation system, in particular to a biogas slurry irrigation anti-blocking system and method. Background technique [0002] The treatment of biogas slurry and aquaculture wastewater in large and medium-sized farms mainly adopts the methods of returning to the field and discharge up to the standard. Among them, the return of biogas slurry to the field generally adopts two methods: irrigation and artificial wetland consumption. Due to the high cost of biogas slurry discharge, it is difficult for enterprises to afford it, while the consumption of constructed wetlands has disadvantages such as long processing time, limited processing capacity, and large land occupation. Moreover, the above two methods are technically complicated and easily cause secondary pollution. Therefore, biogas slurry irrigation is a commonly used method of biogas slurry returning to the field, which is easy to implement, can fully reflect t...

AI Technical Summary

Problems solved by technology

However, biogas slurry and aquaculture wastewater are rich in microorganisms and a small amount of suspended solids. During the implementation of biogas slurry irrigation, there are common problems such as the proliferation of microorganisms in the pipeline and the blockage of the pipeline. Advanced Irrigation Methods for Efficiency

At present, biogas slurry irrigation basically adopts manual hand-held pipe irrigation, which has low production efficiency and high labor intensity, and it is difficult to realize automatic control.

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