Food Wastewater
Air flotation machine
Date:2017-04-27 16:21:43 From: Browse times:
Air flotation machine is a dissolved gas system in the water to produce a large number of fine bubbles, so that the air is highly dispersed in the form of tiny bubbles attached to the suspended particles, resulting in less than the density of water state, the use of buoyancy principle to float on the surface, in order to achieve solid Liquid separation of water treatment equipment. Air flotation machine is divided into superficial shallow air flotation machine, vortex air flotation machine, advection air flotation machine. At present in the water supply, industrial wastewater and urban sewage treatment have applied. Air flotation machine has the advantage of its solid-liquid separation equipment with less investment, accounting for the ground is very small, high degree of automation, easy operation and management characteristics.
CQJ super-superficial shallow ion flotation is a flocculation, flotation, skimming, scraper to one of the air flotation device, the use of the "shallow pool theory" and "zero speed principle" design, stay only 3- 5 minutes, forced water, water and water are static, microbubbles and flocculation of the adhesion occurred in the contact area, including the entire air separation process, scum instantaneous discharge, water disturbance small water suspension low Slag solid rate, suspended solids removal rate of up to 90% -99.5% or more, COD removal rate can reach 65% -90%, chroma removal rate can reach 70% -95%.
CQJ-type superficial shallow ion flotation uses a unique world-class patented technology - a balanced energy dissipation device to replace the traditional release, greatly reducing the diameter of the micro-bubble. The average diameter of the microbubbles is only about 5μm, which is at least 30 times lower than the current average of about 150μm at home and abroad. Since the total area of the microbubbles is inversely proportional to the square of its diameter when the amount of dissolved gas is constant, the total area of the microbubbles increases by at least a few hundred times and the microbubble density increases by a few thousand times. Theoretical studies and experiments show that the microbubble diameter is about small, the stronger the trend of bubble adsorption of suspended solids, the greater the adsorption force, which can be explained by the interface energy theory, the total area of microbubbles increased geometric number equivalent to the solid , Water, gas three-phase total geometric progression increased, so they try to reduce the surface energy by adsorption significantly enhanced the trend. In the theory of air floatation, the separation of suspended solids from water bodies, in addition to bubble adsorption, bubble top care, flocculation mechanism, there are so-called "bubble wrap" role, some not with bubbles or flocs adsorption of small suspension In the process of the rise of dense bubbles, the particle size is still much larger than that of water molecules, regardless of how small the suspended matter is small, and they may be entrained in the bubble gap of the bubble group and transported to the surface. Obviously, the more dense bubble group, the role will be more intense, can carry the suspended matter will be smaller.
Unique dissolved gas system design, small size, high dissolved gas efficiency, compact structure. Equipment covers an area of small, high efficiency.
use
OLTE air floatation machine is a kind of equipment to remove solid suspended matter, grease and various kinds of jelly in various industrial and municipal sewage. The equipment is widely used in oil refining, chemical, brewing, vegetable oil production and refining, slaughtering, electroplating, printing and dyeing and other industrial wastewater and municipal sewage treatment.
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