Water hyacinth can monitor whether there is arsenic in the water, and can also purify the water of harmful substances such as mercury, cadmium, and lead.
Specific principle:
Under suitable conditions, one hectare of water hyacinth can absorb the nitrogen and phosphorus elements emitted by 800 people on the same day. Water hyacinth can also remove cadmium, cadmium, and phosphorus from sewage. Heavy metal elements such as lead, mercury, thallium, silver, cobalt, and strontium.
Water hyacinth is sensitive to As. When the water contains As (arsenic) 0.06ppm, damage symptoms will appear on the leaves after 2 hours. It can be used to monitor whether there is As (arsenic) in the water; it can also be used to purify water bodies. Zn (zinc), As (arsenic), Hg (mercury), Cd (cadmium), Pb (lead) and other toxic substances.
Its natural Zn (zinc) content is relatively high, reaching about 115ppm. Using wastewater containing 10ppm ZnSO4 for cultivation, the Zn (zinc) content in the body was as high as 280ppm after 38 days.
Extended information:
Other functions of water hyacinth
1. Making furniture:
Weaved from specially processed water hyacinth All kinds of furniture and decorations not only cost less than rattan and wooden furniture, but also do not contain formaldehyde and are not expensive. The treated water hyacinth furniture can also decompose a variety of harmful indoor gases into water and carbon dioxide, purifying the environment.
2. Animal feed:
Shanghai Qingpu District processes water hyacinth into grass meal feed to feed rex rabbits, and uses rabbit manure and water hyacinth filtrate as biogas generation sources. The project can collect 120,000 tons of water hyacinth and raise 250,000 rex rabbits a year.
3. Made into adhesive:
A Wuhan biological company uses water hyacinth to make non-toxic biological adhesive, which is widely used in composite floors. This patented technology has attracted the attention of many companies.
4. Edible:
The flowers and young leaves of water hyacinth can be eaten directly. They have a refreshing and fragrant taste, and have the effect of moistening the intestines and laxatives. Aboriginal residents in Malaysia and other places often eat them. Use the young leaves and flowers of water hyacinth as vegetables. In addition, a company in Hubei has produced the first batch of 170,000 bottles of water hyacinth functional drink and sold out.
5. Papermaking:
Water hyacinth is a good raw material for papermaking. In the 1980s, the Regional Research Institute in Hyderabad, India, began to use the leaves of water hyacinth to produce writing paper, advertising paper, card paper, etc.
Baidu Encyclopedia—Eichhornia crassipes (plant hazards, main value)