Primary wastewater treatment by filtering waste water with water hyacinth (Filtration) theory. The development, due to the initiative of "swamp makkasan" is said to have trials of water hyacinth weed, which is already want to get rid of this acting sucks. The wastewater treatment plant, sewage ponds Makkasan Bangkok. capability, including toxins, from spoiling by shape to better update and it does not cause suffering to people who live beside the pond. The initiative is now, do a project, simply pump water from Khlong Sam Sen into a swamp in one way or another, and pump water out of the Canal, samsen, Alternatively, 100-200 meters away distance or buried pipe drains on Asoke-dindaeng drainage by water hyacinth, are fixed on the pond and made to decor, excellent in the middle of a swamp, how-to.The secondary waste water treatment and chest but if necessary to keep the water hyacinth up occasional it provides benefits such as compost or fuel, but not to feed the animals because it contains trace elements of heavy metal wastewater treatment system "Bung makkasan" Bung makkasan waste water treatment system is a model waste water treatment system.Oxidation Pond system called natural or "wind and solar," which would have a pond that has a depth of 0.5-2 meters can provide light. With water hyacinth as a sorbent Nutrients and heavy metals in waste water from Khlong samsen, which can treat waste water per day. 30000-100000 cubic meter.The work of the system relies on collaboration between aquatic plants include algae, bacteria, with or without GM, "in the day Al-g, which is the green water plant will perform photosynthesis. Using the carbon di oxide in water and sunlight. Al g will create new cells of carbohydrate. Part of oxygen as a by-product, the leading RIA " To decompose the waste water, which is the result of this reaction is. Carbon dioxide, which is an important element in the lives of Al and Al, g, g, so the bacteria so it can live together. By complementing each other Living in this manner is called Symbiosis, because the rate of oxygen. Thus, the relatively low The growth of bacteria, and thus were eliminated with the oxygen, when this happens, the speed of reaction of BOD are quite slow. Oxidation Pond system, therefore, must use the pond is large because of the effective system of marshes, makkasan, depending on the amount of oxygen that is available from the synthesis, so in the swamp must not cultivate water hyacinth too much as it will obscure the Sun for water hyacinth, then it will serve various food absorption, and heavy metals in the water, which found that the water hyacinth has a maximum growth. In the time after planting 16-17 weeks to take care of this system by removing water hyacinth every 10 week performance of the wastewater treatment system of marshes, makkasan. It found that can reduce the value of BOD.
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