Trickling filter

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

Diseño hidráulico de una planta de tratamiento de aguas residuales para la parroquia Salinas, Imbabura

Abstract: The hydraulic design of a wastewater treatment plant was carried out according to the characteristics of the water analyzed in the EMAPA-I laboratory, the sizing of a preliminary treatment consists of an approach channel and a screening system of coarse fine grids, followed by a pumping station, capable of pumping up to 25 L s towards the two equalizing tanks, from which the wastewater will be circulated to a primary clarifier of circular section, which theoretically can retain 60 percent of TSS and 37 percent BOD. Subsequently a trickling filter, whose filtering material 2H PLASDEK type KPP312 612 has a specific surface area of 232 m2 m3, will receive waste water, with the objective of degrading organic matter by means of microorganisms capable of synthesizing it. Finally, the effluent from the TF will be directed towards two circular secondary clarifiers, designed to retain the suspended material and it is estimated that the output BOD would be approximately 25 ppm.

Microbiological Stabilization Through Aerobic Digestion and Storage

Abstract: A study was conducted to evaluate the pathogen indicator bacterial reductions in the sludges of six wastewater treatment plants. These plants were extended aeration and oxidation ditch type plants, except one, which was a trickling filter plant. Sludge samples from two wastewater plants were also collected to run laboratory investigations to determine the sludge pathogen reductions in aerobic digestion and in storage. Fecal coliform, fecal streptococcus and salmonella were measured on all sludge samples. Total suspended solids, VSS, p H , and temperature were also measured. Most of the extended aeration and oxidation ditch plants under study were meeting the proposed EPAs Class 'B' pathogen reduction criteria. The improved pathogen reduction is related to the design of the plant. Laboratory aeration and storage studies of extended aeration and oxidation ditch plant sludges indicated further pathogen indicator organisms reduction of at least one order.

The Trickling Filter/Solids Contact Process: Application to Army Wastewater Plants

Abstract: : More than half of the Army's wastewater treatment plants use trickling filter technology to provide secondary treatment. With the growth in regional population at many installations, there is concern that trickling filters alone may not be able to handle the additional loads generated. Moreover, this form of secondary treatment will need to be enhanced in order to produce an effluent meeting stricter environmental regulations. Several add-on and replacement techniques recently have emerged for trickling filter systems. These methods have reinforced the role of trickling filters in providing effective, economical secondary treatment. On particular interest to the Army is the trickling filter/solids contact (TF/SC) process. This method has some advantages over competing technologies, offering improved effluent quality, simple, reliable operation, low maintenance, and cost-effective treatment. The TF/SC process was evaluated for its feasibility in retrofitting Army wastewater treatment plants as well as for potential use in new construction. Information was taken from the current literature, field surveys, and site visits to operational plants.