The invention discloses a wavy subsurface-flow
constructed wetland landscape
water body treatment system and method. The
system combines a horizontal subsurface-flow
constructed wetland with a vertical subsurface-flow
constructed wetland to form a wavy subsurface-flow constructed
wetland. By means of regularly arranging upper clapboards and lower clapboards inside the
wetland and replacing a horizontal flow state with a wavy flow state,
sludge flows in a plurality of
modes which are connected in series and alternate in upstream and downstream flows, so that organic
nutrient substances are sufficiently degraded to remarkably promote deposition of
phosphorus; the
sludge is repeatedly subjected to anaerobic and aerobic treatment, so that removing of
nitrogen can be facilitated; appropriate limestone is added into the filler of the
wetland to release Ca<2+>, so that
phosphorus in the
sludge generates insoluble deposition of
calcium phosphate, and thus the removal rate of
phosphorus is increased. Due to the adoption of
modes, such as intermittent water distribution, water inflow to a water distribution
pipe by forming openings in the bottom as well as serial or parallel operation of a plurality of wavy subsurface-flow constructed wetlands, the
bed body of the constructed wetland plays a relatively large efficiency, the removal rate of
nitrogen phosphorus and organic matters is increased and the sludge treatment capability is enhanced.