Abstract: A large-scale in-situ dewatering treatment method and device for lake sludge are provided. The large-scale in-situ dewatering treatment method for lake sludge includes: step S1, sludge excavation: excavating sludge from a lake and transporting the sludge to a detention pond; step S2, in-situ detention: filtering the sludge in the detention pond to obtain filtered sludge; step S3, dewatering: transporting the filtered sludge to a dewatering workshop and performing deep dewatering on the filtered sludge to obtain mud blocks and wastewater; and step S4, environmental protection treatment: using the mud blocks to build an island near a dredging platform in the lake. The large-scale in-situ dewatering treatment method for lake sludge not only solves the problems of difficulty in selecting a temporary sludge disposal site and high capital investment costs in a traditional lake dredging operation, but also reduces the transportation cost of transporting sludge to a land.

Abstract: A layout method of large-flux algae control wells based on a sluice-pump hub area includes: defining positions of a sluice-pump hub and a river diversion channel as a sluice-pump hub area, arranging at least two sets of pumping station units at the water outlet end of the river diversion channel, using a water flow model to guide streamline and flow velocity distribution of water flow in the river diversion channel, and determining whether it is necessary to adopt rectification measures based on water flow streamline and flow velocity distribution; and obtaining hydraulic characteristic values of the pumping station units, determining whether the currently arranged algae control wells and the adopted rectifying measures simultaneously meet the algae control requirements and subsequent running requirements of the pumping station units based on the hydraulic characteristic values.