Question

what is the role of water hyacinth in wastewater treatment

Answer 1

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In this study, water hyacinth(Eichhornia crassipes) was used to treat domestic wastewater. ... It reveals the optimum growth rate of water hyacinth has great effect on waste water purification efficiency in continuous system and nutrient removal was successfully achieved.



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Answer 2

Water hyacinth (Eichhornia Crassipes) is a hybrid plant from the Pontederiaceae family. It exists in the equatorial and semi-equatorial areas in the world, and wastewater is considered a suitable environment for the growth of the plant. When it is planted in a wastewater pond, it grows vigorously, with roots extending to depths between 10-30 cm below the water surface, while its stem and leaves rise to the water surface and sometimes cover it completely. The plant can obtain its nutrients (phosphorus, nitrogen) from the wastewater. The fine roots of the plant trap suspended solids, and present a suitable environment for the growth of microscopic organisms that feed off the organic materials present in the wastewater, transforming them into simple inorganic material. The result is the production of clean water with low concentrations of BOD, suspended sediments, phosphorus and nitrogen. The cleaned water can be released directly into rivers, or used for drinking or domestic purposes after carrying out other additional processes (e.g., disinfection).

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