公开(公告)号：WO2017033057A1

公开(公告)日：2017-03-02

申请号：PCT/IB2016/001315

申请日：2016-08-23

Applicant: NETAFIM LTD.

Inventor： HANNAFORD, Dennis ,  RINKENBERGER, Todd

IPC: A01G25/00 ,  A01C23/04 ,  C02F1/68

CPC classification number: A01C23/007 ,  A01C23/042 ,  A01G25/00 ,  A01G25/02 ,  C02F2209/05

Abstract: Disclosed are methods and apparatus for blending wastewater with fresh water for fertigation of a crop. In one embodiment, the wastewater and the fresh water are blended at a predetermined flow ratio through a blending valve to obtain a blended stream. A logic based controller controls the blending valve to set a predetermined flow ratio according to the electricity conductivity (EC) of the blended water stream. The blending, measuring, and adjusting steps form a feedback loop so as to maintain the blended stream at a target EC value.

Abstract translation: 公开了将废水与淡水混合用于作物施肥的方法和装置。 在一个实施方案中，废水和淡水通过混合阀以预定流量比共混以获得混合流。 基于逻辑的控制器控制混合阀，以根据混合水流的电导率（EC）来设定预定的流量比。 混合，测量和调整步骤形成反馈回路，以将混合流保持在目标EC值。