The invention discloses a rainwater collecting and reusing
system for farm
irrigation, and belongs to the technical field of farm
irrigation. The rainwater collecting and reusing
system for farm
irrigation comprises a
drainage ditch and a reservoir. The reservoir is arranged at one end of the
drainage ditch, a collecting tank is arranged at the other end of the
drainage ditch,
pebble filter blocksare arranged in the collecting tank and used for filtering water flowing into the collecting tank from the drainage
ditch, the drainage
ditch further communicates with lamp wick tubes, lamp wick water-
absorbent cotton is arranged in the lamp wick tubes, the lamp wick tubes further communicate with a return pipeline, the
tail end of the return pipeline communicates with a storage pond, redundant water in the drainage
ditch can be absorbed and stored through the lamp wick water-
absorbent cotton in the lamp wick tubes, and under the condition of water shortage, the water in the storage pond canbe conveyed to the drainage ditch. The
water consumption is greatly reduced, energy saving and
environmental protection are facilitated, direct utilization of
nitrogen and
phosphorus without
energy consumption is achieved,
settling cells are further arranged at the bottom of the storage pond,
silt blockage can be avoided through the
settling cells during
actual use, meanwhile,
straw can be added,replacement use can be achieved, and microorganisms can be degraded.