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A artificial wetland treatment system for diversion and purification of rivers entering lakes in northern regions

A constructed wetland system and constructed wetland technology, applied in the field of artificial wetland treatment system for diversion and purification of rivers entering lakes in the northern region, can solve the problem that artificial wetlands in rivers cannot solve the contradiction between flood discharge and purification treatment operation, wetland plants affect flood discharge, and invest a lot of manpower and material resources To improve the quality of the living environment, increase the treatment residence time, and reduce the effect of erosion

Inactive Publication Date: 2016-04-20
LINYI UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0016]1) Due to the blocking effect of wetland plants, river constructed wetlands cannot solve the contradiction between flood discharge and purification treatment operation, and wetland plants affect flood discharge during flood periods;
[0017]2) After a period of operation, wetlands generally have blockage problems, which reduces their purification efficiency;
[0018]3) Plants in northern wetlands die, rot and decompose in winter, causing secondary pollution and affecting water quality;
[0019]4) The investment of manpower and material resources is relatively large, and the management cost is relatively high

Method used

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  • A artificial wetland treatment system for diversion and purification of rivers entering lakes in northern regions
  • A artificial wetland treatment system for diversion and purification of rivers entering lakes in northern regions
  • A artificial wetland treatment system for diversion and purification of rivers entering lakes in northern regions

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Embodiment

[0071] A composite constructed wetland system is arranged at the entrance of the xxxx lake. The length of the reservoir is 900m and the width of the reservoir is 140m. The reservoir area can be divided into four areas. Different aquatic plants are planted respectively. Typhaorientalis ) area (length 240m), reed ( Phragmitesaustralis ) area (length 220m), submerged plant + floating leaf plant area (length 230m), emergent plant + floating leaf plant + submerged plant area (length 210m).

[0072] The removal efficiency of TP (total phosphorus) was relatively high in June, August and October, 42.59%, 31.00% and 48.00%, respectively, and relatively low in February, April and December, 21.82%, 26.76% and 22.00, respectively %. The removal of orthophosphate was the highest in June at 40.43%, and the remaining months were relatively low, fluctuating between 17.65% and 28.57%, but the fluctuation was relatively small.

[0073]The removal efficiency of TN (total nitrogen) was relati...

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Abstract

The invention, aiming at the defects of a conventional artificial wetland technology for a riverway, provides a combined artificial wetland treatment system capable of being used for the riverway at a lake inlet in a low-temperature northern area. The system comprises a damming water region, a water draining region and a combined artificial wetland system. Wetland can be used in the northern area all the year round, and the problem that the wetland cannot be used in winter in the northern area due to low air temperature is solved.

Description

technical field [0001] The invention belongs to the technical field of artificial wetland treatment, and in particular relates to a treatment system for artificial wetlands suitable for diversion and purification of rivers at the mouth of a lake in northern regions. Background technique [0002] In recent years, with the rapid development of my country's national economy, environmental pollution and the associated problems have become increasingly apparent. The survey shows that the pollution of various rivers in the country is becoming more and more serious. By the end of the 20th century, more than half of the rivers had water quality of IV, V or even inferior V, which seriously aggravated the shortage of water resources in my country and restricted the sustainable development of the economy. People's lives and health constitute a great harm. [0003] For the treatment of polluted rivers, sediment dredging is an effective method to directly remove endogenous pollution, but...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F3/32
CPCC02F3/327C02F2103/007Y02W10/10
Inventor 王立志
Owner LINYI UNIVERSITY