Trickling filter

About: Trickling filter is a research topic. Over the lifetime, 1098 publications have been published within this topic receiving 20219 citations.

Performance of Municipal Wastewater Treatment Plant

Abstract: The treatment performance of two‐stage secondary treatment consisting of a trickling filter followed by activated sludge process for treatment of combined municipal and industrial wastewater is determined. The municipal wastewater treatment plant is located in Solon, Ohio, where the treatment units include grit tanks, primary clarifiers, trickling filters, aeration tanks, secondary clarifiers, tertiary filters and chlorine contact tanks. The treatment performance data for a 12‐month period in 1989 was evaluated. The average total plant flow was 2.82 MGD (millions gallons per day) which consisted of 2.19 MGD industrial wastewater and 0.63 MGD domestic wastewater. Raw wastewater was of a high strength mainly due to the contribution from industrial sources. After different degrees of treatment the values of total suspended solids (TSS) and biochemical oxygen demand (BOD) met US Environmental Protection Agency standards. This plant has good treatment performance with 99 per cent BOD and 98 per cent TSS remova...

Plant of sewage water advanced treatment

Abstract: sewage water treatment. SUBSTANCE: plant may be used for advanced treatment of biologically cleaned sewage water prior to discharging it into reservoir. It may also be used in closed systems of industrial water supply when building of swimming pools and during preparation of drinking water. Plant of sewage water advanced treatment is provided with microfilter, booster pump, ejector, bactericidal plant, saturator, electrified gate valves, position pickups of electrified gate valves, water level gauge in high-rate trickling filter, pressure pickups and control unit with corresponding couplings. EFFECT: higher efficiency. 1 dwg

Novel bio -trickling filter exhaust -gas treatment device

Abstract: The utility model discloses a novel bio -trickling filter exhaust -gas treatment device, including dripping the filter tower body, the top of dripping the filter tower body is equipped with the gas outlet, drip this internal from the top down of filter tower in proper order including the purge gas layer, spray the layer, spray the liquid layer, bio - packing layer, exhaust -gas treatment layer and ring liquid layer, gas outlet, purge gas layer, sprays at the layer, spray liquid layer, bio - packing layer, exhaust -gas treatment layer and the ring liquid layer communicates in proper order, the in situ that sprays that drips the filter tower body is equipped with to spray and violently manages, and the lower part of violently managing should be sprayed and the shower nozzles that four equidistance were arranged were equipped with, it is sealed to spray the one end of violently managing, it extends to the outside of dripping the filter tower body and links to each other with circulation liquid riser is fixed to spray the other end of violently managing, the bottom fixedly connected with circulating pump of circulation liquid riser. This novel bio -trickling filter exhaust -gas treatment device has solved in the present bio -trickling filter problem that throughput is relatively poor and biotrickling filtration filler performance is relatively poor of hydrophobicity or degradation waste gas.

Unsaturated flow phenomena in porous medium as in a trickling filter

Abstract: The relationship between substrate removal efficiency and dispersion characteristics of biological filters was investigated. Flow measurements were made using tap water and a synthetic feed solution. The importance of changes in fluid regime with regard to the simultaneous transport and reaction within the biological filter was demonstrated. The effect of drop formation and breakage of liquid jets on substrate utilization was shown.