Tonglida briefly describes the natural method of sewage treatment

To discuss ecological engineering and sewage treatment system, we must first understand ecological engineering. Ecological engineering is essentially the idea of ecosystem plus engineering design. In order to discuss ecological engineering, let's start from the ecosystem and review the ecosystem briefly.

Ecosystem can be defined as an ecological functional unit, which is composed of biological and abiotic components in a certain space. These components interact and depend on each other through material circulation, energy flow and information exchange. The biological organization level of an ecosystem is a biological community, so an ecosystem can also be defined as a functional unit that studies the interaction between biological communities and their environment and functions. Ecosystem may be a very specific idea. Ponds, villas, forests or grasslands are ecosystems. At the same time, it is an abstract concept in space.

The aquatic plant wastewater treatment system can be used in combination with the treatment system in front of the stabilization tank, or it can be used alone.

(1) Purification and treatment principle of aquatic plant sewage 1 Absorption and removal of nitrogen, phosphorus and other pollutants by aquatic plants. 2. Absorption and accumulation of heavy metals by aquatic plants. 3 Absorption and degradation of toxic and harmful organic pollutants by aquatic plants.

(2) Aquatic plant wastewater treatment system 1 Single aquatic plant system 2 Composite aquatic plant treatment system 3 Algae treatment system 4 Photobioreactor

(3) Application of constructed wetlands

(4) Intensive treatment of constructed wetland system 1. Pretreatment enhancement of wetland treated sewage 2. Intensive treatment of rhizosphere microorganisms 3. Optimal selection and combination of plants in constructed wetland, various combinations in different forms.

Ecosystems and biosphere are just different spatial categories that study their complexity. Small ecosystems combine into large ecosystems, simple ecosystems combine into complex ecosystems, and the largest and most complex ecosystems are the biosphere.