Watershed Management and Ecological Restoration of Black And Odorous Water Bodies - Application of Technology

As living standards improve, people has paid more attention to the surrounding river environment. In spite of this, there are still some black and smelly rivers that affect the quality of the urban environment. Therefore, it becomes more urgent to formulate watershed management and ecological restoration of black and odorous water bodies. The focus is still on how to achieve watershed management and ecological restoration of black and odorous water bodies, and what technical operations are there in these areas. Let's see how the editor summarizes some of the core points from the actual project operations of Shangchen Environment.

What are the characteristics of watershed management technology?

The watershed management technology of Shangchen Environmental mainly uses a combination of biological and physical methods, focusing on in-situ restoration technology, which can restore the ecosystem and self-purification capacity of the basin without dredging, effectively improve water quality, prevent soil erosion, and improve the environment.

Features:

● Adopt NVO200 bio-nanomembrane aeration device to eliminate organic pollution and black odor, improve water color and transparency, effectively promote the growth of aquatic organisms, and reduce organic matter in the water.

● Adopt WYS active composite enhanced floating island purification system to create an environment conducive to the growth and reproduction of microorganisms, obtain a large number of microorganisms with high biological activity, and improve their efficiency in oxidizing and decomposing organic matter.

● Adopt the proprietary microbial activation device of Shangchen Environment to release bioactive agents, improve and optimize the microbial ecosystem, enhance the system’s biological activity, and increase the effective biomass and functionality of microorganisms.

● Use bio-based and bionic aquatic plants as microbial carriers, which will not affect the navigation and flood discharge functions of river, and will not damage the river (water body) ecosystem.

● Absorb nutrients such as nitrogen and phosphorus from the bottom mud with roots of aquatic plants and assimilate them into their own structural components, thereby solidifying the nitrogen and phosphorus in the water, reducing the concentration of nitrogen and phosphorus in the water and purifying the water.

● Shangchen Environment can stabilize the bottom sediment in the long term and eliminate the black and odorous phenomenon in rivers and streams.

● Adopt side filtration device based on the water quality characteristics, which is subject to modular design and can be flexibly set according to terrain requirements.

● Use the mobile water quality monitoring platform developed by Shangchen Environment to understand the river water quality status in real time through the APP data receiving device.

[Shangchen Environment - Engineering Application Cases]

1. Sanya City Baopo Creek Baopo Road Intersection to Beipo Bridge Water Environment Treatment Project

Project Overview: Baopo Stream is a tributary of Sanya Donghe River, with a total length of 15.3 kilometers. It mainly flows through Sanya Technician College of Hainan and Dalong Administration Bureau, merges into Yuechuan Wetland at Beipo Bridge, and finally flows into Sanya Donghe River through the East Bank Drainage Channel. The river section to be regulated this time is from Baopo Road intersection to Beipo Bridge, which is 1.4 km long and has a water area of about 80,000 square meters.

Technical process: A complete set of 13 special comprehensive remediation processes including sediment modification, biofilm aeration, and composite ecological floating islands.

Treatment effect: After being treated by Shangchen Environment, the water quality of the section from Baopo Creek to Beipo Bridge in Sanya City has partially met the surface water Class V standard, and the water quality in some areas has reached Class IV surface water.

2. Yima City Jianhe River and Shihe River Ecological Comprehensive Improvement Project

There are two rivers, Jianhe River and Shihe River, running through Yima City, with a total length of 28.098 km. Jianhe River is a first-class tributary of Luohe River. It originates from the eastern foot of Matou Mountain in Guanyintang Town, Shaanxian County, and runs through the urban area from east to west. Its length in Yima is 19.298km, and the current river width is 50-170m. Shihe River is located in the northwest of Yima City, running through the urban area from north to south. It is a tributary of the left bank of Jianhe River and a seasonal river. It flows into Jianhe River at Shihe Village and is 8.8km long.  

Main construction contents: River ecosystem restoration, water purification, waterfront landscape, special construction

Cooperation period: The cooperation period of this Project is 12 years, including 2 years of construction period and 10 years of operation period.