In-situ ecological restoration technology suitable for tidal inland river

Abstract

The invention relates to an in-situ ecological restoration technology suitable for tidal inland river. Aiming at the problems that the urbanized tidal river net slow flow riverway and pond at Peral River Delta are serious in pollution and the pollution is hard to govern, a water pollution direct purification or on-site treatment system suitable for three-side hard riverway and internal lake (both coats are concrete or mortar stone land wall) is developed. The system is further suitable for other similar river or riverway and urban internal lake. The system is installed at the bottom of the riverway, the front section or each of the front end and the rear end is provided with a slow flow settling zone, the middle section is a biological treatment zone; the biological treatment zone comprises a sinking caisson (fixed at the bottom of the river), a jet stream or pushing flow aerator and distribution equipment; the sinking caisson is made of angle steel and reinforcing steel bar, a plastic geonet is added on the inner wall, a polyurethane-based netty and block type biological carrier is mounted in the geonet. The specific setting and system construction is as shown in the figure. The aeration debugging is performed after the system is established, and then the system can operate according to design parameters after achieving an ideal condition. The proper efficient microbial flora can be added in the debugging process according to water quality and treatment effect requirement, so that the domestication effect is better.

Description

technical field [0001] The invention is a river bottom type water body pollution direct purification or in-situ biological treatment system. The technical fields involved include: biological contact oxidation technology, high-efficiency biological carrier technology, high-efficiency microbial technology, jet flow or push flow aeration technology, and pollutant physical precipitation and river regulation engineering technology. Background technique [0002] The urbanization in the Pearl River Delta region is developing rapidly, and the river water pollution is serious, especially the inland river in the network river area. Due to the influence of the tide and sluices in the outer river, the water exchange is not smooth, and the sewage wanders back and forth in the river. In addition, the "linearization" in the process of river regulation " and "three-sided light" treatment, making the already polluted river water appear more serious, black and smelly. In order to seek an eco...

AI Technical Summary

Problems solved by technology

The present invention is mainly aimed at the problem of water body pollution control of urban inland rivers and lakes (concrete or masonry quay walls) in the tidal net river area, and the water body pollution direct purification or in-situ biological treatment technology developed and researched

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