His Majesty, he offered a bung makkasan waste water collection ponds of Bangkok, Thailand. Bueng makkasan are parkland, excavation of the Thai State railway of Thailand. With an area covering approximately 40 acres of land with deep 5 meters waste water flowing into the bung makkasan railway repair factory and from the slum around the pond. Water hyacinth is a plant which grow and spread around the pond.Design of experiments with bamboo frame design float size 5 m × 10 m wangkrachai through all parts of the pond covers an area of 30 per cent on the surface of the water and the collection and analysis of data gathering the following information of the plant nutrient analysis of water hyacinth can absorb it. Analysis of heavy metals and toxins in wastewater Study on the sludge and the roots of water hyacinth and fresh compost. In addition, I found that the water hyacinth growth rate during the period of time is related to the concentration of chemicals in the water. Study results showed that water hyacinth that is used in the treatment of waste water and growth of 20 per cent cover areas make the plankton light synthetic plants which cannot take buankansang MK หืแส้ ngacha added soluble oxygen, enough of the bacteria used in the digestion of organic compounds in water.
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