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

A water self-purification and water quality purification technology, which is applied in water/sewage treatment, biological water/sewage treatment, water/sewage multi-stage treatment, etc., can solve problems such as not being economical, and improve transparency, dissolved oxygen content, and cost Inexpensive, effect of reducing turbidity and total phosphorus content

Pending Publication Date: 2017-01-11
CHINA WATER RESOURCES PEARL RIVER PLANNING SURVERYING & DESIGNING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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

Method used

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

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Embodiment Construction

[0034] see figure 1 and figure 2 , the water purification treatment process of multi-stage strengthened water body self-purification and hydraulic control of the present invention is characterized in that comprising the following steps:

[0035] 1) Analyze the change of raw water quality and find out the change rule of raw water quality. In order to improve the economy of purification treatment, avoid the time period of extremely unfavorable water diversion, such as high tide or other periods that will greatly affect the quality of incoming water; try to arrange purification Time period of treatment: the turbidity of diversion water shall not exceed 500NTU, and the salinity shall not exceed 250ppm. If the water is diverted when the turbidity exceeds 500NTU, the treatment cost will be higher. If the salinity exceeds 250ppm, considering the downstream river ecosystem, water diversion is not recommended.

[0036]2) Dosing a coagulant in proportion before the water diversion p...

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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...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/14
CPCC02F9/00C02F2209/11C02F2103/007C02F2001/007C02F3/327C02F7/00C02F1/5236
Inventor 吴华财蒋翼赵微人肖许沐胡和平
Owner CHINA WATER RESOURCES PEARL RIVER PLANNING SURVERYING & DESIGNING
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