Drinking water source pollution flow mud sedimentation promoting method

A water source, drinking water technology, applied in the direction of polluted waterway/lake/pond/river treatment, water/sewage treatment, chemical instruments and methods, etc. Drinking water source water treatment cost and other issues, to achieve the effect of promoting sedimentation and reducing the concentration of suspended solids

Active Publication Date: 2018-11-23
NANJING INST OF GEOGRAPHY & LIMNOLOGY
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For most shallow lake-type water sources, due to the shearing effect of wind and waves on the lake bottom sediments, the polluted mud will be resuspended, affecting the water quality and water supply security of the water source.
Usually, the direction of flow mud movement is affected by the flow direction of the lake. The wat

Method used

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  • Drinking water source pollution flow mud sedimentation promoting method
  • Drinking water source pollution flow mud sedimentation promoting method
  • Drinking water source pollution flow mud sedimentation promoting method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] This example involves the construction of an underwater submerged embankment in Xukou Bay of Taihu Lake to promote settlement of polluted mud.

[0036] figure 1 A longitudinal section of an underwater submerged embankment according to Example 1 is schematically shown. figure 2 A top view of an underwater submerged embankment according to Example 1 is schematically shown. refer to figure 1 with figure 2 , The underwater submerged dike according to Embodiment 1 includes a first ecological submerged dike 200m away from the water intake and a second ecological submerged dike 300m away from the water intake. The first ecological submerged dike is filled with kaolin particles with an average particle size of 5mm (Shengheng Mineral Products Processing Factory), and the second ecological submerged dike is filled with stones with an average particle size of 10mm. Both the first ecological submerged dike and the second ecological submerged dike are arranged in a zigzag shape.

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Abstract

The invention relates to a drinking water source pollution flow mud sedimentation promoting method which comprises the steps: measuring a wind speed and a wind direction of the water surface of a drinking water source and a bottom layer water flow direction, determining a flow field under the primary wind field action and distributing an underwater submerged dike in the perpendicular direction ofthe flow field, wherein the underwater submerged dike is formed by a first ecological submerged disk and a second ecological submerged dike, the first ecological submerged dike is piled by geotechnical cloth bags which are closest to the water's edge and filled with a first filler, the second ecological submerged dike is piled by geotechnical cloth bags which are farthest from the water's edge andfilled with a second filler, and the distance of the first ecological submerged dike to the water bottom is smaller than that of the second ecological submerged dike to the water bottom. The drinkingwater source pollution flow mud sedimentation promoting method disclosed by the invention has the beneficial effect that by means of selecting an arrangement mode, filler types and filler sizes of the underwater submerged dikes, pollution flow mud sedimentation is effectively promoted, and a suspended matter concentration of the shoreward sides of the underwater submerged dikes is obviously reduced.

Description

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Claims

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Application Information

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Owner NANJING INST OF GEOGRAPHY & LIMNOLOGY
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