Ecological floating bed device for in-situ enhanced denitrification of micro-polluted river

Abstract

The invention relates to an ecological floating bed device for in-situ enhanced denitrification of a micro-polluted river, and can effectively solve problems that in the water body of the micro-polluted river, the C / N is relatively low, the available carbon source is insufficient, the denitrification effect is inhibited, and the TN removal rate is relatively low. The technical scheme is that the ecological floating bed device comprises a floating bed frame and emergent plants; the floating bed frame is composed of a rectangular outer floating bed frame 2 and a grid-like inner floating bed frame 3; plant water-permeable planting grooves 4 are uniformly distributed in frame grids; the planting grooves are provided with a floating bed substrate 5 and the emergent plants 1 planted in the substrate; the lower part of the floating bed frame is filled with a perpendicularly downward combined filler; the lower parts of four corners of the outer floating bed frame 2 are connected with fixed piles 7 fixed on a riverbed through connecting ropes 6. The ecological floating bed device provided by the invention is suitable for purifying water body of natural river channels, lakes and reservoirs, as well as landscapes, has dual effects of water surface beautification and water purification, and is simple to mount, economical and practical.

Description

technical field [0001] The invention relates to the field of in-situ purification of rivers, in particular to an ecological floating bed device for in-situ enhanced denitrification of slightly polluted rivers. Background technique [0002] As an important carrier of resources and environment, rivers are related to the safety of human survival and the sustainable development of society. The massive discharge of pollutants in the process of industrialization and urbanization has resulted in varying degrees of pollution in my country's rivers. With the gradual improvement of sewage treatment facilities and the advancement of pollution control technology, the pollution levels of COD and ammonia nitrogen in rivers have decreased. However, at the same time, there are still problems such as insufficient number of indigenous denitrification microorganisms, poor biodegradability of river water, and unbalanced carbon-nitrogen ratio, which lead to slow nitrification, inhibited denitrifi...

AI Technical Summary

Problems solved by technology

[0004] In view of the above situation, in order to overcome the defects of the prior art, the purpose of the present invention is to provide a kind of in-situ enhanced denitrification ecological floating bed device for slightly polluted rivers, which can effectively solve the problem of The C / N of slightly polluted river water is low, the carbon source available to microorganisms is insufficient, denitrification is inhibited, and the removal rate of TN is low.

Images