| Autor: |
WANG Zheng, ZHANG Ai, LIN Xumeng, HE Yueling, ZANG Xueke, XUE Gang |
| Předmět: |
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| Zdroj: |
Journal of Donghua University (Natural Science Edition); Feb2024, Vol. 50 Issue 1, p118-126, 9p |
| Abstrakt: |
Regulating the nutrient balance of water bodies is an important means to control the nutrient load of carbon, nitrogen and phosphorus in eutrophic water bodies and to restore the ecosystem of water bodies. The ecological restoration mechanism of water bodies based on the regulation of nutrient balance was analyzed from three aspects: microorganisms, aquatic plants and aquatic animals. This review focused on the principles, advantages and disadvantages and improvement methods of engineering remediation methods(ecological floating islands, submerged macrophytes, artificial wetlands and microbial restoration) based on nutrient balance. Ecological floating islands were vulnerability limited by the rhizome length of aquatic plants and the carbon source of the system, which can be developed by suspending the composite filler and providing reduced state inorganic matter as an electron donor instead of organic carbon source. Combining aquatic animals, microorganisms and submerged plants can improve the environmental adaptability of submerged phytoremediation. Artificial wetlands suffered from insufficient carbon oxygen levels and substrate carbon source, which can be solved by increasing oxygen and adding natural organic substances and inorganic substrates into the substrate respectively. The microbial remediation was limited by relatively few factors. A combination of these remediation methods can be used in engineering applications to build a multi-level water ecological balance system in the future. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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