studying municipal sewer lines blockage due to fat, oil and grease depositions and prevention methods
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چکیده
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منابع مشابه
Quantifying fat, oil, and grease deposits formation kinetics in sewer collection systems
Fat, oil and grease deposits in sewer systems are known as calcium based fatty acid salts that are responsible for a significant number of sanitary sewer overflows (SSOs) throughout the United States. Since 2007, clean water act (CWA) requires publicly owned treatment works (POTWs) to invest more than 15 billion dollars in new pipes and infrastructure to eliminate the overflows. However, little...
متن کاملa survey on the removal efficiency of fat, oil and grease in shiraz municipal wastewater treatment plant
results the results showed that the fog amount in input raw sewage in the mwwtp from june 2011 to september 2011 was around 25.5 mg/l and the amount in treated wastewater was about 8.1 mg/l. the fog removal efficiency in this refinery was about 70% and met the environmental standards for the discharge (less than 10 mg/l) (p < 0.05). conclusions the effluent can be discharged to surface waters o...
متن کاملUse of Bio-Amp, a commercial bio-additive for the treatment of grease trap wastewater containing fat, oil, and grease.
This research investigated the application of Bio-Amp, a commercial bio-additive for the treatment of fat, oil, and grease (FOG) in a grease trap, and evaluated potential impacts of treated effluent on downstream collection system and treatment processes. Results show that after Bio-Amp treatment, FOG deposit formation was reduced by 40%, implicating a potential reduction of sewer line blockage...
متن کاملAnaerobic co-digestion of municipal wastewater sludge and restaurant grease
Co-digestion has drawn much attention because of its potential to increase biogas production among other benefits. Restaurant grease has high energy content and methane production potential and so is a promising substrate for co-digestion with municipal wastewater sludge. Anaerobic co-digestion of municipal wastewater sludge and restaurant grease was investigated at laboratory-scale under mesop...
متن کاملStatistical modelling of Fat, Oil and Grease (FOG) deposits in wastewater pump sumps.
The accumulation of FOG (Fat, Oil and Grease) deposits in sewer pumping stations results in an increase in maintenance costs, malfunctioning of pumps and, a potential increase of wastewater spills in receiving open water bodies. It is thought that a variety of parameters (e.g. geometry of the pump sump, pump operation, socioeconomic parameters of the catchment) influences the built-up of FOG. B...
متن کاملinvestigation of capabilities and limitations of different cleaning methods for sewer lines
mechanical, hydraulic, and chemical washing methods are the most common methods for sewer line cleaning. each of these methods includes several sub methods. rodding and bucket machine are the two most important of mechanical cleaning methods, whereas high-speed and flushing are the most important hydraulic cleaning methods. acids, alkalis, surfactants, and enzymes are widely used materials in s...
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عنوان ژورنال:
تحقیقات نظام سلامتجلد ۱۲، شماره ۴، صفحات ۰-۰
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