نتایج جستجو برای: aerated lagoon and trickling filter that currently
تعداد نتایج: 17014200 فیلتر نتایج به سال:
high levels of turbidity and suspended solids are the major disadvantages of aerated lagoons. aerated lagoon effluent filtration was investigated by horizontal roughing filter (hrf). removal efficiencies were determined by examining total phosphorus (tp) and total kjeldahl nitrogen (tkn) from hrf influent and effluent, simultaneously. hrf pilot system located on effluent pump station of qom was...
High levels of turbidity and suspended solids are the major disadvantages of aerated lagoons. Aerated lagoon effluent filtration was investigated by Horizontal Roughing Filter (HRF). Removal efficiencies were determined by examining total phosphorus (TP) and total Kjeldahl Nitrogen (TKN) from HRF influent and effluent, simultaneously. HRF pilot system located on effluent pump station of Qom was...
Performance of a pilot-scale nitrifying trickling filter treating municipal aerated lagoon effluent.
Colfax, WA, operates an aerated lagoon to achieve compliance with its National Pollutant Discharge Elimination System (NPDES) permit, which currently requires biochemical oxygen demand (BOD) and total suspended solids (TSS) removal. However, ammonia removal may soon be required, and Colfax is considering a nitrifying trickling filter (NTF) that would allow them to also maintain the lagoons. To ...
introduction with increasing development of urban communities and increase of population in towns, thus the need for water is also increased in the recent years. production rate of municipal wastewater has also grown dramatically. on the other hand, increase of public awareness about the water pollution problems has followed the new and stricter environmental laws concerning wastewater discharg...
Nitrification is a necessary and often limiting process in animal waste treatment for removal of nitrogen as N2 through biological nitrification/denitrification systems. We evaluated three technologies for enhancing nitrification of pig lagoon wastewater prior to denitrification: overland flow, trickling filter, and a bioreactor using nitrifying pellets. The overland flow system consisted of a ...
Background and Objective: In this research, landfill leachate treatment in Karaj city was investigated by a linked septic tank and aerated lagoon. Materials and Methods: At first, characteristics of the leachate were determined. Then a pilot plant with anaerobic-aerobic (Septic tank and Aerated lagoon) parts was installed and started. Results: Results showed that Chemical Oxygen Demand (COD) re...
Introduction:Among the pollutants in waste gases, volatile organic carbons (VOCs) are very harmful for human, animals and plants. Formaldehyde is a member of VOCs family and is very toxic, mutagen and carcinogen. For removing formaldehyde, Some biological methods for treating waste gases such as bio-trickling filter reactor (BTFR) have been developed by scientists. The aim of this study was to ...
Plastic media trickling biofilter technology is being used on a pilot-scale to treat swine lagoon wastewater for use in a hydroponic greenhouse system. Two treatments of 9 filters each were installed to compare the treatment performance of commercially available BioballsTM and recycled soda six-pack rings and to verify a mathematical description of nitrification in a trickling filter. Determini...
odor emission is a common environmental problem in septic tank. the feasibility of using trickling filter to eliminate the malodorous gases from the septic tank was studied. a trickling filter is set up at the outlet of the waste gases of the septic tank, which was attached to the university's cafeteria. in this investigation, the trickling filter system was used, measuring the hydrogen sulfide...
Background and Objectives: In this experimental study, we used Analytical Hierarchy Process method to determine the best wastewater treatment process for dairy products factories. That is a multi-criteria decision making techniques and is based on expert knowledge. Materials and Methods: First, we formed the hierarchical structure and defined the main criteria and indicators. Then, we investiga...
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