Water body denitrification reinforcement restoring device of artificial wetland

Abstract

The invention relates to a water body denitrification reinforcement restoring device of an artificial wetland. The water body denitrification reinforcement restoring device of the artificial wetland comprises a device body, emergent aquatic plants, a water inlet pump and a water inlet tank, wherein sandy soil is filled in the bottom of the device body; slag covers on the surface of the sandy soil; the emergent aquatic plants are planted in the sandy soil; a water inlet of the water inlet pump is connected with the water inlet tank; a water outlet of the water inlet pump is led into the device body; and the side wall of the device body is provided with an outlet with an outlet valve. The water body denitrification reinforcement restoring device of the artificial wetland has the beneficial effects as follows: 1. coupling of anaerobic ammonia oxidation and half-partial nitrification is realized, and the water body denitrification reinforcement restoring ability is strong; 2. chemical reagents do not need to be added to regulate the pH value in the system, and the operating cost is reduced; 3. the emergent aquatic plants provide a micro-aerobic environment to meet the requirement of ammonia oxidizing bacteria on oxygen, and the activity of the ammonia oxidizing bacteria is not inhibited; and 4. the emergent aquatic plants absorb nitrogen and phosphor pollutants so as to remove nitrogen pollutant as well as phosphor. The device has a good asthetic and ecological value.

Description

technical field [0001] The invention relates to an enhanced restoration device for denitrification of artificial wetland water body. Background technique [0002] With the intensification of human activities, the global nitrogen cycle imbalance is becoming more and more serious. Industrial production discharges a large amount of ammonia nitrogen wastewater into natural water bodies, causing eutrophication of water bodies to occur in rivers, lakes and other water bodies from time to time, seriously affecting the ecological security of water bodies and the health of people. Therefore, it is necessary to carry out the research, development and application of water denitrification restoration technology. [0003] Constructed wetlands are artificially built and supervised and controlled. They can use the synergistic effects of physics, chemistry and biology in the natural ecosystem to purify sewage. In constructed wetland systems, microorganisms are the main biological groups a...

AI Technical Summary

Problems solved by technology

However, the control parameters of the combined process of semi-short-range nitrification and anammox are complicated, and the process of semi-short-range nitrification is not easy to be stably controlled for a long time

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