نتایج جستجو برای: aerated lagoon

تعداد نتایج: 7153  

غلامی, میترا, محمدی, حامد, میرزایی, رویا,

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...

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...

Journal: :journal of safety, environment, and health research 0
mohammad khazaei research center for environmental pollutants, department of environmental health engineering, qom university of medical sciences, qom, nader yousefi school of public health, tehran university of medical sciences, tehran, iran. amir hossein mahvi department of environmental health engineering, tehran university of medical sciences, tehran, iran amin bagheri department of environmental health engineering, school of public health, tehran university of medical sciences, tehran, iran. kamal ghadiri department of environmental health engineering, school of public health, tehran university of medical sciences, tehran, iran.

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...

2013
Donald Harleman Susan Murcott

The purpose of this thesis is to elucidate the concept of chemical coagulation and its application in enhancing the performance of waste stabilization lagoons. The design and analysis of a pre-pond chemical precipitation system and an in-pond chemical precipitation system are presented, compared, and contrasted to an aerated lagoon system; the design of each system includes liquid and sludge tr...

Journal: :Bioresource technology 2010
S Montalvo L Guerrero E Rivera R Borja A Chica A Martín

Winery wastewater was treated in two pilot-scale aerated lagoons operating in fed-batch mode. A first lagoon of 27.2m(3) working volume was gradually filled with wastewater with an average COD content of 8700mg/L. Given that with the flow-rate used (790L/day) this first lagoon completed its working volume after 30days of starting, part of the liquid contained in the first lagoon was transferred...

2014
Subbarao V. Ravva Chester Z. Sarreal

Salmonella is the most commonly identified foodborne pathogen in produce, meat and poultry. Cattle are known reservoirs of Salmonella and the pathogen excreted in feces ends up in manure flush lagoons. Salmonella enterica survival was monitored in wastewater from on-site holding lagoons equipped or not with circulating aerators at two dairies. All strains had poor survival rates and none prolif...

Journal: :Journal of environmental sciences 2012
Francois Gagné Chantale André Marlène Fortier Michel Fournier

Municipal wastewaters are major sources of pollution for the aquatic biota. The purpose of this study was to determine the levels of some pharmaceutical products and the immunotoxic potential of a municipal wastewater aeration lagoon for the treatment of the domestic wastewaters of a small town with wastewater inputs from a 400-bed hospital complex. Endemic mussels were collected, caged and pla...

The selection of optimum high strength wastewater treatment process is complicated. Be familiar with wastewater treatment methods is not enough to design a plant. In this research, five alternative wastewater treatment methods (upflow anaerobic sludge blanket (UASB) + membrane bioreactor (MBR), UASB + Extended aeration (EA), Anaerobic baffled reactor (ABR), anaerobic lagoon (ANL) + aerated lago...

Journal: :jundishapur journal of health sciences 0
tahereh mohebzadeh islamic azad university, bandar abbasbranch, bandar abbas, iran mohammad mehdi taghizadeh islamic azad university, estahban branch, estahban, iran; islamic azad university estahban branch, iran tel:+989173135359 afshin takdastan department of environmental health engineering, school of health and environmental technology research center, jundishapur university of medical sciences, ahvaz, iran mansooreh dehghani department of environmental health engineering, shiraz university of medical sciences, shiraz, iran

introduction: due to the risks of hormones on human health and aquatic life, the aims of this study were to determine the efficiency of estrogen removal in the different stages of shiraz wastewater treatment plant using activated sludge process and marvdasht wastewater treatment plant using aerated lagoons process and also comparing the performance of both systems in removing the hormone of est...

2002
S. N. D. G.

Pulp mill aerated lagoons are subject to perturbations owing to the chang-ing composition of the effluent and variations in climate. Such stresses may affect microbial activity and the biodegradation of chlorinated organic compounds. Studies revealed thatvariation in the culturable microbial population in a northern Ontario kraft pulp mitl la-goon is related to process parameters (w...

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