The invention discloses a pumped-storage hydroelectric
plant applied to an ecological reservoir and a
sewage treatment method. The pumped-storage hydroelectric
plant comprises a slope, a lower reservoir and an upper reservoir; a
water pumping pipe and a sluiceway are arranged between the upper reservoir and the lower reservoir, respectively; a combined water suction pump is arranged on the
water pumping pipe; a
turbine generator is arranged on the sluiceway; an aerator is arranged at the bottom end of the upper reservoir; a concrete
retaining wall is arranged to surround the upper reservoir; a
wind driven generator is arranged at the upper end of the concrete
retaining wall; a solar panel is arranged at the upper end of the concrete
retaining wall. The
sewage treatment method comprises the steps of (a) construction preparation, (b) surveying and setting out, (c) foundation pit excavation, (d)
water pumping pipe construction, (e) sluiceway construction, (f) slope foundation pouring, (g) slope preparation construction, (h)
vegetation planting, (i) lower reservoir excavation, (j) upper reservoir excavation, (k)
water diversion, water pumping (l) and (m) sluicing. The pumped-storage hydroelectric
plant is capable of producing the
electric energy by virtue of energy conversion, and also capable of changing
dead water into running water and improving the
water quality.