Multistage-strengthened water-self-purification and water-power-regulation-and-control water purification process and system

Abstract

The invention relates to a multistage-strengthened water-self-purification and water-power-regulation-and-control water purification process. The process comprises the steps: (1) adding an aluminum-salt or iron-salt inorganic macromolecular coagulant before a primer pump according to the dosage of 5ppm to 30ppm; (2) adding a polyacrylamide coagulant aid to a flocculation reacting section according to the dosage of 0.01ppm to 0.1ppm, mounting a perforated pipe to the bottom of an absorption basin area, and carrying out aeration; (3) planting amphibious plants along the bank of a settling river reach; (4) arranging an ecological overflowing gate at the tail end of a settling dam so as to control the water retention time of a settling dam section to 90 to 120 minutes, control the flow velocity to be lower than 0.1m / s and control the water level difference with a downstream riverway to 30cm to 50cm; (5) arranging a downstream regulating lock in the downstream riverway so as to control water flow velocity and form progressive water head; (6) arranging a regulating lock for each branch when the downstream riverway has a plurality of branches. The invention further relates to a special system for the process. By adopting the process and the system, provided by the invention, on the basis of not affecting hydraulic engineering facilities and riverway draining function, water of diverted water is purified in a remarkable-effect and low-cost manner, and the self-purification capacity of the riverway water is improved.

Description

technical field [0001] The invention relates to a water quality purification treatment process for multi-stage enhanced water body self-purification and hydraulic control. The invention also relates to a multi-stage water quality purification treatment system with enhanced water body self-purification and hydraulic regulation specially used in the process. Background technique [0002] The urban rivers in the plain river network area have a small gradient. In order to improve the fluidity of the river water body and increase the hydrodynamic conditions of the river channel, the water distribution control is mainly carried out through the established water diversion and distribution pump stations in the area, thereby accelerating the flow of water in the river network in the area. Improve the circulation speed of the body, improve the self-purification ability of the water body, improve the water environment of the river network, and build a harmonious and unified urban river...

AI Technical Summary

Problems solved by technology

In the existing water conservancy engineering facilities such as water diversion pumping stations, it is difficult to have space to build a homogeneous structure for unified treatment, and the construction is not economical

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