Topic
Trickling filter
About: Trickling filter is a research topic. Over the lifetime, 1098 publications have been published within this topic receiving 20219 citations.
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TL;DR: In this paper, the quality of raw municipal and dairy wastewaters was determined by measuring 30 quality parameters, such as phenols, oxidation-reductio-oxide (REDO), etc.
Abstract: This study aimed to characterize raw municipal and dairy wastewaters. The quality of the collected wastewaters was determined by measuring 30 quality parameters, such as phenols, oxidation-reductio...
3 citations
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30 Sep 1964
TL;DR: In this article, the authors described a method of cleaning a streambed consisting of particles of average diameter 1/16 inch to 1/4 inch and specific gravity of specific gravity, by interrupting the flow of effluent and passing a fluid through the bed in reverse direction at a rate to fluidize the bed.
Abstract: 971,338 Percolating-filters ALBRIGHT & WILSON (MFG) Ltd Nov 2, 1962 [Aug 11, 1961], No 29069/61 Heading BID Effluent flows downwards for bacterial disposal through a filter bed consisting of particles of average diameter 1/16 inch to 1 / 4 inch and of specific gravity 1 to 2 and the bed is periodically cleaned by interrupting the flow of effluent and passing a fluid through the bed in reverse direction at a rate to fluidize the bed Untreated effluent introduced at 23 and 18, with optional addition of re-circulated effluent from a pump 13, enters space 14 and with compressed air introduced at 17 passes downwards through a bed 10 to a space 15 It passes thence to a vessel 16 where air escapes and the liquid is discharged as outflow or passes to recirculating pump 13 To clean the bed according to one method, valves 17-19 and 23 are closed and a valve 20 is opened to permit effluent to be fed for distribution at 15 ; alternatively a valve 21 is opened for introduction of water In either case the liquid passes upwards, the free space 14 permitting the expansion of the bed occasioned by the upward flow The liquid leaves at 22 and is either re-cycled or discharged from the vessel 16 Preferably a positive air pressure is maintained above the bed An alternative method of cleaning consists in interrupting the flow of effluent from the bed instead of reversing it ; the bed then fills up with effluent, and air is then blown through it from the bottom to disturb the particles The preferred bed material is coke, but foamed slag or polystyrene may be used It is stated to be known to supply a pure liquid under pressure for backwashing to perforated pipes arranged vertically in a trickling filter composed of very fine cinders Later, air is fed under pressure through another similar set of pipes located between the others Thereafter the soiled liquid is allowed to rise above the filter bed level and is led away
3 citations
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TL;DR: In this article, the authors quantified selected pharmaceutically active compounds (PhACs) (diclofenac, aspirin, paracetamol, and ibuprofen) in wastewater and evaluated its removal efficiency from wastewater treatment plant (WWTP).
3 citations
01 Jan 2009
3 citations
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TL;DR: In this paper, the effect of interior structure of agro and non-agro materials for industrial wastewater treatment in the effluents quality occurring before and after Industrial wastewater treatment as a filter media was investigated.
Abstract: 3 Abstract: This investigation aims at studying the effect of interior structure of agro and non-agro materials for industrial wastewater treatment in the effluents quality occurring before and after industrial wastewater treatment as a filter media. Removing of oil and grease and wastewater impurities are the main target of this experimental work to reuse the effluent for irrigation purpose. In this study different fibers such as rice straw, luffa, sawdust, palm hemp, mixture of rice straw and luffa, LECA and clay were used in trickling filter systems as a filter media. The overall objective of this study is the evaluation of the capability of tested agro and non-agro filters in decreasing wastewater impurities. The results shows that the highest reduction in BOD (95.33%), COD(89.79%), TSS (96.6%), TDS (98.1%) and Oil/grease (99%) were recorded using the mixture of rice straw & luffa beds. The BOD, COD, TSS, TDS and oil/grease in the final effluent were 21, 84.8, 17, 0.15 and 0.31 mg/l respectively. Also the conductivity of the effluent decreased during stages of the treatment.
3 citations