nutrient elimination from effluent of municipal wastewater treatment plant applying horizontal roughing filter

نویسندگان

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

چکیده

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 wastewater treatment plant and was put into operation at the filtration rate of 1 m3/m2.h. the main objective was to evaluate the performance of horizontal roughing filter for nutrient removal from aerated lagoon effluent. the filter was fed with continuously aerated lagoon effluent during a 62 days filtration run period. tkn and tp removal efficiencies were 46.6% and 53.8%, respectively. the average inlet and outlet tkn during filtration were 14.49 ±1.63 and 7.73 ±2.84 mg nh3/l, respectively. moreover, tp was measured 5.7 ±0.83 and 2.63 ±0.63 mg p/l for filter inlet and outlet, respectively. it was shown that horizontal roughing filter has a significant effect on total kjeldahl nitrogen (p

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Nutrient Elimination from Effluent of Municipal Wastewater Treatment Plant Applying Horizontal Roughing Filter

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عنوان ژورنال:
journal of safety, environment, and health research

جلد ۱، شماره ۱، صفحات ۱-۵

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