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Composite constructed wetland system and pretreatment method for drinking water source

A constructed wetland system and constructed wetland technology are applied in the field of drinking water source compound constructed wetland system and pretreatment, which can solve the problems of difficult advanced treatment, high cost of advanced water treatment, low removal efficiency, etc. Long-lasting, improved removal effect

Inactive Publication Date: 2008-10-01
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] In order to solve the problem that existing water plants generally adopt conventional water treatment processes, the removal efficiency of micro-polluting organic matter, ammonia nitrogen, biological toxins and other substances in raw water is low; although advanced treatment can effectively improve the water quality of factory water, due to the depth The cost of water treatment is high, and it is still difficult to carry out advanced treatment on a large scale. A drinking water source composite constructed wetland system and a pretreatment method are provided. The specific technical solutions to solve the above problems are as follows:

Method used

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  • Composite constructed wetland system and pretreatment method for drinking water source
  • Composite constructed wetland system and pretreatment method for drinking water source
  • Composite constructed wetland system and pretreatment method for drinking water source

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specific Embodiment approach 1

[0012] Specific implementation mode one: combine figure 1 , figure 2 , image 3 , Figure 5 , Image 6 The present embodiment will be described. In this embodiment, the raw water 1, the first water delivery pipeline 2-1, the second water delivery pipeline 2-2, the third water delivery pipeline 2-3, the fourth water delivery pipeline 2-4, and the fifth water delivery pipeline 2- 5. Grit chamber 3, two first pool bodies 4-1, second pool body 4-2, first water inlet sump 5-1, second water inlet sump 5-2, first deflector 6-1, the second deflector 6-2, two up and down baffled submerged flow artificial wetlands 7, the first water outlet pool 8-1, the second water outlet pool 8-2, the surface flow waveform artificial wetland 9 and the perforated pool The water pipe 14 is composed of a first water inlet sump 5-1 in the left end of the first pool body 4-1, and a first water outlet sump 8-1 in the right end of the first pool body 4-1. Between the first water inlet pool 5-1 and the...

specific Embodiment approach 2

[0014] Specific implementation mode 2: The length-to-width ratio of the upper and lower baffled subsurface constructed wetland pools in this embodiment is 4:1, the bottom slope is controlled within 1-4%, and the water depth is 0.6-0.7m.

specific Embodiment approach 3

[0015] Specific implementation mode three: the diameter of the large gravel in the large gravel and ceramsite mixed layer of this embodiment is 50-60mm, and the diameter of ceramsite is 4-5mm; the diameter of small gravel in the mixed layer of small gravel and ceramsite is 20-30mm , The diameter of ceramsite is 3-3.5mm.

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Abstract

The invention provides a compound artificial wetland system and a pretreatment method for drinking water sources, which relate to a pretreatment system and a treatment method for drinking water and solve the problems of low removal efficiency of matters of micro organic pollutant, ammooinacal nitrogen, biotoxins, which exist in current raw water with large quantity, relatively high cost for deep treatment and still being difficult in mass deep treatment. The system of the invention is formed by connecting raw water, water transmission pipelines, a grit chamber, a subsurface artificial wetland with up and down baffling streams and a surface waveform artificial wetland. The method comprises the steps that: (1) an artificial wetland pretreatment system is used; (2) aquatic plants such as arundo donax var versicolor, etc. with higher COD and TN degradation efficiency are selected among current plants as wetland plants; (3) bacterias are evenly distributed in a filling layer; (4) part of water discharged from the grit chamber is input into the surface flow waveform artificial wetland and effluent water after the treatment of the surface waveform artificial wetland is input to a water tank. The system and the method has low investment, stable and reliable operation, simple operation and low cost for maintenance and operation.

Description

technical field [0001] The invention relates to a drinking water pretreatment system and a treatment method. Background technique [0002] With the continuous and rapid development of my country's economy, the rapid improvement of people's living standards and the acceleration of urbanization, a large amount of sewage and waste water are discharged into rivers in the process of production and life, resulting in increasingly serious water pollution and water quality deterioration in water sources. , the water quality of some water sources has shown a state of micro-pollution, which has caused enormous pressure on the purification facilities of drinking water plants. At present, my country's water plants generally adopt conventional water treatment processes, which have low removal efficiency for micro-polluting organic substances, ammonia nitrogen, biological toxins and other substances that exist in large quantities in raw water. Although advanced water treatment can effecti...

Claims

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Application Information

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IPC IPC(8): C02F3/00C02F3/32C02F3/34
CPCY02W10/10
Inventor 于水利杨旭修春海张洪洋暴瑞玲左行涛
Owner HARBIN INST OF TECH
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