Evaluation and upgrading of a multi-stage trickling filter facility Download PDF EPUB FB2
The restructured objectives of the investigation were as follows: 1. To optimize operation of present treatment facilities. To examine operation of the multi-stage trickling filter system at various organic loads, temperature conditions, and other operating variables.
Evaluation and upgrading of a multi-stage trickling filter facility. Cincinnati, Ohio: Environmental Protection Agency, Office of Research and Development, Industrial Environmental Research Laboratory ; Springfield, Va.: National Technical Information Service, The existing facility was based on trickling filters, and the objective of the upgrade was to achieve nutrients removal.
The proposed solution modifies the existing primary clarifier to host an anaerobic-anoxic suspended growth reactor, which is an alternative that, to our knowledge, has not been proposed or explored so by: 1.
Evaluation and upgrading of a multi-stage trickling filter facility / By John H. Koon, CIBA-GEIGY Corporation., Inc. AWARE and United States. Environmental Protection Agency. Plots of published data according to equation (9) for standard trickling filters. Characteristic evaluation of trickling filter process for the plastic media and from to for rock media.
Data analysis with high-rate trickling filters. In high-rate trickling filters recycling is used to enhance BOD removal under high BOD by: 9. Stone media trickling filters will be designed with depths of 5 to 7 feet for low-rate applications and depths of 3 to 6 feet for high-rate applications. Synthetic media manufacturers recommend depths of 10 to 40 feet for columnar or stacked module media.
Wastewater Technology Fact Sheet Trickling Filters DESCRIPTION Trickling filters (TFs) are used to remove organic matter from wastewater. The TF is an aerobic treatment system that utilizes microorganisms attached to a medium to remove organic matter from wastewater.
This type of system is common to a number of technologies such as rotating. Performance evaluation of partially saturated vertical-flow constructed wetland with trickling filter and chemical precipitation for domestic and winery wastewaters treatment.
Trickling filter system 41 Trickling filter 42 Schematic diagram of attached growth process 43 Typical hexagonal axes 63 Hexagonal axes on the HCP medium 64 Side faces of a hexagonal crystal 65 Side faces of HCP medium 66File Size: 1MB. What is Trickling Filter. Trickling Filter also known as percolating or sprinkling filter is like a well having depth up to about 2m and filled with some granular media.
The sewage is sprinkled over the media which percolates through filter media and is collected through the under-drainage system.
the nitrification process using a trickling filter system. TFs are designed as aerobic attached growth reactors and have been proven to be suitable for the removal of ammonia nitrogen. Nitrogen Content in Wastewater Nitrogen exists in many forms in the environment and can enter aquatic systems from either natural or human-generated sources.
A trickling filter (TF) is one of the oldest biological wastewater technologies that has been used for over years.
With years of evolution, modern trickling filters can be built up to 12 m ( Abstract. A trickling filter (TF) is one of the oldest biological wastewater technologies that has been used for over years.
With years of evolution, modern trickling filters can be built up to 12 m (40 ft) tall with the use of high-performance plastic : Jia Zhu, Frank M.
Kulick, Larry Li, Lawrence K. Wang. A trickling filter is a type of wastewater treatment system. It consists of a fixed bed of rocks, coke, gravel, slag, polyurethane foam, sphagnum peat moss, ceramic, or plastic media over which sewage or other wastewater flows downward and causes a layer of microbial slime to grow, covering the bed of media.
Aerobic conditions are maintained by splashing, diffusion, and either by forced-air. 2 filtration filter operation 25 rapid gravity filtration 25 backwashing 25 filter control systems 26 6 activated carbon filters 29 7 interaction with other treatment processes 31 prefiltration treatment 31 in-line filtration 31 8 process monitoring and control 35 9 operating procedures associated with normal process conditions Trickling filters.
Akepati S. Reddy Associate Professor, Thapar University Adjunct Scientist, TCIRD Patiala (PUNJAB) – INDIA Trickling filters • Most conventional technology but relatively less used • Circular or rectangular non-submerged fixed film bioreactors • Includes – Rock or plastic packing as a medium for bio-film development – Wastewater dosing or application 5/5(9).
Discuss the types of waste treated by a trickling filter and a RBC. Explain the purpose served by the media in a trickling filter and on a RBC. Describe the effect of algae growth on the media of a trickling filter and a RBC.
Introduction to Trickling Filters and RBC's Study Guide - September EditionFile Size: 97KB. 3 Modified Flow Diagram of Trickling Filter System for Upgrading Effluent Quality Employing Lime 4 Effluent Quality Versus pH Following Lime Treatment of Trickling Filter Effluent 5 View of Pilot Rock Trickling Filter 6 View of Pilot Plastic Trickling Filter 7 Performance of Pilot and Plant Trickling Filters in Terms of BOD.
General Considerations Trickling filters may be used where the treatment of wastewater is amenable to aerobic biological treatment processes. Trickling filters shall be preceded by primary clarifiers equipped with scum and grease collecting devices, or other suitable pretreatment facilities.
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Full text of "Selected water resources abstracts". PMTF Plastic Media Trickling Filter RMTF Rock Media Trickling Filter RO Reverse-Osmosis conveyance system modeling and treatment facility alternatives evaluation have been on upgrading to a 53 MDG facility at the current planning level.
However, based on cost equations for pump File Size: 7MB. Primary and Secondary Clarifiers. This page provides information on the expected performance of primary and secondary clarifiers. Removal efficiencies, detention times, and other parameters have been summarized to provide a handy reference.
Of course, every wastewater plant is different, with potentially vast differences between municipal and industrial wastewater systems. Design high rate trickling filter for the data given above except effluent BOD5 = 40 mg/l since polishing treatment is provided after high rate trickling filter.
Consider recirculation ratio of 2 and filter depth of m. 2Q, BOD = 40 TF SST. Q T BOD = BOD in the effluent, Q. Table —Trickling filter categories.
Table —Parts of a trickling filter. Table —Design and flushing Spulkraft (SK) values for distributors (revised, higher SK values reflect new, post-publication data). Table —Troubleshooting guide for trickling filters.
Table —Planned maintenance for trickling filters. Sewage treatment is the process of removing contaminants from municipal wastewater, containing mainly household sewage plus some industrial al, chemical, and biological processes are used to remove contaminants and produce treated wastewater (or treated effluent) that is safe enough for release into the environment.A by-product of sewage treatment is a semi-solid waste or Types: List of wastewater treatment technologies (not all.
Trickling filter is a type of waste water treatment process, which is an attached growth this process the microorganisms responsible for digestion are attached to an inert filter material.
This Packing material can be rock, gravel, sand and a. Trickling filter, in wastewater treatment, a bed of crushed rock or other coarse media roughly 2 metres (6 feet) deep and up to 60 metres ( feet) in diameter. Settled sewage is sprayed over the bed surface and is further purified as it trickles downward, coming in contact with filmy layers of microorganisms (slime) attached to the media.
It has since been widely applied, particularly for upgrading existing trickling filters. The TF/SC process is biological/physical in nature and typically includes a trickling filter, an aerobic solids contact tank, flocculation and secondary clarification.
Fast-Track Evaluation of a Compact Chemically Enhanced-Trickling Filter System Brazilian Journal of Chemical Engineering Vol. 24, No. 02, pp. -April - June, Figure 1: Flow Diagram of the Proposed CEPT-TF System CEPT/TF Modeling a) CEPT Module. Explain multi-stage (series) and parallel operation of trickling filters.
Outline the procedure for start-up of a trickling filter. Describe the operational problems caused by various dissolved oxygen levels in both trickling filters and RBC's. Advanced Trickling Filtration and RBC's Study Guide - File Size: KB. Sincethe Aire-O2® system has provided efficient oxygen transfer, good mixing, and easy maintenance even in severe winter conditions Problem This Midwestern, USA city wanted to replace an aging trickling filter system with a new, efficient wastewater treatment facility equipped to .Fecal sludge management (FSM) (or faecal sludge management in British English) is the collection, transport, and treatment of fecal sludge from pit latrines, septic tanks or other onsite sanitation systems.
Fecal sludge is a mixture of human excreta, water and solid wastes (e.g. toilet paper or other anal cleansing materials, menstrual hygiene materials) that are disposed of in pits, tanks or.A well-designed trickling filter system should have the wastewaste stream discharge from the nozzle to spread out evenly so that the idea is, to have the whole filter media bed uniformly covered.
Selection of filter media for your trickle filters must consist of material with high surface area to allow water to pass through freely without clogging.