Landscape water equipment principle of environmentally friendly water filter water purification phenomenon of nature is an objective basis for the theory that the nature of self-purification of surface water by evaporation by the sun to the sky to form clouds and rain will fall through the floor, through Formation of multi-layer filtering, clustering together into underground runoff, then clean water flows out by the people or the bus into a river (the cycle), in this process, due to changes in the level terrain, natural completion of some dissolved oxygen, biochemical, sedimentation, filtration the process of self-purification capacity of the water itself growing, "water does not rot," that is the truth. Based on the above principles developed environmentally friendly water filtration system, its workflow with the raw water into the water tank evenly distributed, and then through the aeration device, the raw water aeration financial oxygen, biological oxygen aeration contact oxidation reaction melt, The water is harmful gases emanating from the water, then inhale oxygen in the air, this system is also called (respiratory system), after the completion of entering the fine filter, (our fine filter is a multilayer filter composed together repeatedly, up to seven) filter from top to bottom, as the following filtering process diagram. Due to the continuous rejection filter layer of suspended solids in water, increasing the resistance of the filter layer, so that siphon water level rise, when the water level rises to the set position into the auxiliary pumping means siphon tube, since hydraulic action of the air siphon away , a negative pressure. When the negative pressure reaches the design value, then the siphon phenomenon, when the water tank is formed back from the bottom of the bottom-up and continue washing the filter layer, filter layer was "regeneration", as shown backwash flow diagram. Due to the continuous backwash filter layer, backwash water discharge to sewer, water tank level drops to a predetermined value, the siphon effect is destroyed, backwash end, the filter and back to work. For more information, please visit the official website: www.szslkn.cn/