(1) Wetland engineering water quality purification technology

Use natural depressions and create a natural wetland treatment system through reasonable manual trimming. Under the combined effect of water-resistant plants and soil, the water quality of rivers and lakes is purified to a certain extent.

(2) Natural and artificial filler touch oxidation technology

The water flow from the natural filter media expires, resulting in filtration and adsorption. Together, a biofilm grows on the surface to oxidize and differentiate organic matter; Alternatively, artificial materials such as plastic (rope like, fiber like) can be used as touch oxidation fillers to purify polluted water bodies in rivers and lakes.

(3) Jet aeration oxygenation technology

Using a float type diffusion aeration device to increase the dissolved oxygen value in water and provide conditions for the oxidation of organic matter in the water. It is possible to construct a huge circulating water flow in the water, which can also be aerated. With very little energy consumption, the huge lake water can be stirred. Based on this, appropriate filling materials can be laid on the flow path of the water flow to successfully achieve touch oxidation of pollutants in polluted lakes. This can reduce the BOD content in the lake water, avoid silt accumulation, and eliminate the odor of the lake water. Together, the flow aerator and packing are all submerged in the water, without affecting the water surface scenery.

(4) Biological floating bed water quality technology

In heavily polluted water areas, due to the destruction of aquatic ecosystems, the self purification ability of water bodies is lost, and the mechanism of natural recovery no longer exists. Artificially creating artificial ecosystems and using environmental biotechnology to absorb and reduce nitrogen in water P and harmful substances, purify water quality, and rebuild and rehabilitate aquatic ecosystems in limited areas.

(5) Scattering treatment technology for sewage entering the river

In order to reduce investment in water transmission pipelines and plan sewage treatment plants, especially for the relatively scattered sewage entering the river in suburban areas, the development of scattered biological treatment technology for sewage entering the river will enable point source sewage to be treated on site before entering the river.

(6) Bypass New Water Active Water Technology - Integrated Membrane Bioreactor

Integrated membrane bioreactor can reduce COD NH3-H， Its effluent quality can meet the discharge standards of urban sewage treatment plants, and its effluent is stable, occupying a small area, and movable. It can be easily managed and ensure water quality in river management.

The article originates from the natural ecological water purification system http://www.scneng.com.hk