New Biofilm carrier packing biological shale ceramic filter

Raw materials: ceramic filter made of high quality clay, clay, sticky solvents by the group grinding, screening, calcining processing, with a hard surface, the internal microporous, high porosity and other characteristics. In aerobic activated sludge as inoculum, water two weeks to reach BAF treatment effect. A variety of high-quality ceramic Main features: 1. particles round, even, rough surface, microporous, internally developed porosity, large surface area, so strong biological bacteria adhesion, breed quickly, biofilm high efficiency, low temperature and turbidity conditions Under the effect of the removal of ammonia reached advanced domestic level, long working period, large water production cycle, typically 500-1000m / m. 2. The bulk specific gravity of light, high strength, thereby backwash low energy consumption, low head loss, clean feed head loss of only 150mm / m. 3. interception capability, general-bit 9-13kg / m. 4. high filtration rate, typically 15-20m / h, up to 35kg / m. 5. backwash water consumption is low, only 30-40% quartz filter material. 6. chemical stability, strong anti-acid-base properties, long service life. Particles: 5--20mm, the largest is 25mm Application: Steel Rolling wastewater, generally by precipitation, coagulation, bio-ceramic filtration. After removal of suspended solids in wastewater and oil, then cooled leaving recycling. Water treatment water turbidity requirements in 10-15 degrees, the oil content of 10 mg / l following hot rolling wastewater treatment systems have a representative as follows: A. waste - metal pits, settling tanks, cooling towers - circulation use. B. Wastewater ~ ~ coagulating sedimentation pit iron second cooling tower recycling. C. waste iron pit ~ ~ ~ filter ~ settling tank tower ~ recycling. After some factories on Hot water, first with iron pits, most of the waste water precipitated iron oxide and oil separation, and then pressure ultrafast bio-ceramic filtration treatment, the treated water after cooling tower recycling. For oily wastewater generated during cold rolling, usually first with the conditioning tank, remove most of the oil slick in the water, then coagulation, flotation method for removing emulsified oil. Cold-water oil slick content of about 200-300 mg of 7 liters, turbidity 200-40 degrees, so water stays in the conditioning tank after 30-60 minutes, the water oil content of about 10 mg / l, by using coagulation, After the flotation treatment of effluent water, the oil content of 10-30 mg / l, turbidity of 20-50 degrees, if more by secondary treatment, get good water quality of treated water.