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沼液灌溉需要安裝什么樣的過濾系統?

文字:[大][中][小] 手機頁面二維碼 2017/9/18     瀏覽次數:    

  隨著農業的發展,種、養結合的模式在各地區不斷地得到推廣,為沼液灌溉發展提供了有利條件,但在實施沼液滴灌、噴灌過程中,為防止沼液中的雜質堵塞灌水器,選擇適當的過濾系統是決定灌溉系統運行的關鍵。


  近日,在灌溉網的中外節水灌溉交流群中有人問到,沼液灌溉需要安裝什么樣的過濾系統?下面我們結合群友的回答進行一下總結。



  對于沼液過濾,一般采用沉淀池多級過濾。將修建好的沉淀池相鄰池子之間用不同目數的篩網鏈接,例如:20目—80目—120目。最后將沼液引入到灌溉系統中,按照常規用水進行過濾。還可以采用砂石過濾器組和疊片過濾器組進行組合,直接將沼液進行過濾。


  此外,對于沼液過濾中還應注意,沼液對于過濾器管道的腐蝕,最好選用PE材質。同時對于部分沼液中可能重金屬超標,還應安裝重金屬離子分離器。


  據了解,將沼液引入到農業種植體系中不但可以利用沼液達到廢棄物的循環利用,防止因為沼液排放造成的面源污染,而且可提高作物種植中水分、養分的利用,提高作物產量和銷售收入。另外,由于沼液養分的利用,可減少有機肥和化肥投入,具有顯著的經濟效益和社會效益。

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