Ecological restoration method for in-situ low-carbon submerged water in water body

Abstract

The invention discloses an ecological restoration method for in-situ low-carbon submerged water in a water body. The ecological restoration method disclosed by the invention has the benefits that a chemical agent is not used, so that the secondary pollution cannot be caused to an environment; the aim is to establish a virtuous cycle of biodiversity and build a healthy and stable underwater ecosystem for 'indigenous micro-organisms+zooplanktons+protozoans+submerged plants+aquatic animals', so that the water body has ecological self-purifying capability; an underwater landscape system is constructed, so that a long-term and stable purifying effect is achieved; meanwhile, the ecological restoration method has a certain ability to resist external pollution; bottom mud is fixed and mineralized,and nutritive salt and other substances in the bottom mud are gradually absorbed and transferred; compared with a general technology, the ecological restoration method requires no silt removal, no any additional water circulation system, no additional land occupation, no equipment, no machine room, no subsequent power consumption, no pipeline and the like; a restored water body environment can form a self-restoration system and an internal hydrodynamic ecosystem as well as a self-purifying system; the pollution is not required to be diluted by relaying on the change of water, so that the costis low.

Description

technical field [0001] The invention relates to the technical field of environmental protection, in particular to an in-situ low-carbon submerged water ecological restoration method for water bodies. Background technique [0002] With the development of social economy and the rapid growth of population, a large amount of nutrient-rich domestic sewage, industrial wastewater, and farmland sewage are discharged into the freshwater system, resulting in eutrophication, water quality deterioration, and odor, which seriously affect the environmental quality. . [0003] The current technologies for water pollution remediation mainly include: [0004] (1) Sewage interception based on exogenous pollution control, sewage diversion, treatment of sewage denitrification and phosphorus removal, reduction of phosphorus discharge in domestic sewage, initial rainwater interception, etc.; and dredging and nutrient salt based on endogenous pollution reduction A series of measures such as pass...

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Problems solved by technology

[0006] (3) Control the abnormal growth of algae: chemical killing and flocculant (such as copper sulfate, alum, lime, etc.) methods can be used to achieve control measures such as algae killing, phosphorus precipitation and denitrification, which often cost a lot of money It is too large to treat the symptoms but not the root cause, and it is easy to cause secondary pollution; another emergency measure is to use mechanical methods to harvest a large amount of algae in the water. The mechanical method can quickly and partially remove algae and algal blooms in the water body in a short period of time, which requires a lot of financial resources. , manpower and material resources, but the amount of algae that is often fished out will be produced in the same amount in the next algae outbreak cycle

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