Study On Clarify-float Filtrate Craft For Water

This study utilized the succeed experience of Harberer craft and floating sieve all over the world. By making use of the new craft that integrated of suspend clarify and up flow of light sieve to empolder a new product including merit as follow: high efficiency; longer period; robotization; taking small area and low cost in general. The new craft can get ride of many limitations efficiently in current market and exploit a more amplitude future for the incorporate water purify equipment. The paper studied suspend clarify-float filtrate craft and researched a general mending measure to the building as water power circulate-clarify pool and offer the examination bedrock and theory foundation. In addition, this task investigated mechanism of light stuff up flow filtrate craft and filled up the blank of research field of light stuff filtrate theory, further more, this study enriched the investigation of water supply and drain in the nation.The technical core of the water processing filter is leaching stuff. Choose the proper filtrate stuff is important to the leach outcome. Proper filtrate stuff should consist of proper size, well-proportioned shape, benign chem.- stabilization and mechanism intensity. The light stuff clarify pool is filled by PVC grain the density of which is smaller than the water. When the water that containing tiny flocculate object wash by the filtration bed, it will flocculate with the tiny flocculate object head off before. Therefore, it is generally considered that light stuff pool is provided with both solid apart from liquid and flocculate function. At this time of day, scholar from Australia, France, Japan has studied abundance in the aspect of light stuff filtrate system and flocculate system and have got the experience of engineering precedent using the craft.The examine result of the incorporate craft of clarify-filter shows that contrasting this craft and the others, this contrast has many strongpoints, such as: nice quality of drain water; running longer periods; slow down the waterpower-damnify of filtration; needing lower washing intension and quantity, and so on. There fore, this craft belongs to economical - clean water disposal craft which is sparkpluged by the government. Polystyrene is an excellent stuff including merit as follow: steady physics and chemistry property; accord with the governmental sanitation target; convenience to be gained; cheap and possess a longer using life. At the same time, the polystyrene stuff shows topping capacity of section the contamination under deep water and get over the familiar phenomenon of surface choke in grit pool. Under the precondition of turbid degree movement range is small, run period and feedwater flux of the equipment are of inverse ratio. The increase ratio of water power loss is of direct ratio to the quantity of water supply; When the feedwater quantity is fixed and muddy degree go on ascend,the running period of the equipment shorten obviously and the water power losing ratio get larger along with the muddy degree in the layer of float strain stuff. The main techno-parameters of the integrative clarify-floatleach craft are as follow: muddy degree of feedwater≤50NTU, muddy degree of clarify section﹤30NTY,muddy degree of out water<1.5NTU, water power burthen per unit: 5~10 m3/m2·h, running period≤48h. It is feasible and essential to apply gas-water reactor to the craft of integrative clarify-floatleach; the effect that gas-water mix for the first and water swill for the second is preferable, and the intension of the air rush is about Oa=15L/s·m2 and the water rush Ow=4L/s·m2. The integrative clarify- floatleach craft is provided with merits both suspend clarify and up flow strain with light strain stuff and many limitations of traditional water clean equipments are conquered. This craft can be used widely in the minitype water supply region, such as: country villages and towns, diggings project, construct ground and beauty spots which far from the water supply of the city. Therefore, this craft is provided with widely market potential; upstanding economy and social benefit. In addition, The study of integrative clarify-floatleach craft will also provide a powerful basis for ameliorating the clarify pools.