The investigation and designing of an onsite grey water treatment
systems at Hazrat-e-Masoumeh University, Qom, IRAN
and in a manner that is protective of public health and the environment, it can help preserve limited water supplies.
Qom Province is located in the central part of Iran, at the Latitude and the Longitude of 34° 38' 24 N and 50° 52' 35 E
respectively. The city of Qom is the 7th most populated city of Iran. With an altitude of 933 meters above the sea level and a
location adjacent to two great deserts Qom has a very hot and dry weather. The salt lake (Daryacheh-ye Namak) in the east of the
city has caused the ground to be usually arid and parched. Due to proximity to desert region, the climatic changes and the low
value of precipitation, water resources are under pressure, and under such harsh conditions, water is very precious. The onsite
wastewater treatment systems can reduce the water crisis. To this end the Hazrat-e-Masoumeh University was selected as a pilot
to investigate the feasibility of reusing the produced grey water.
Based on studies undertaken to propose a grey water treatment system, the Hazrat-e-Masoumeh University has recommended the
application of trickling filters with suspended plastic media. In this method, waste particles (if existing) are first removed from
the system by a 1cm mesh screen. Then the grey water is conducted to a buried septic tank and the resulting water is pumped to a
trickling filter containing suspended plastic media and the sludge, amounting to thrice the discharge of the pumped water is
returned to the septic tank. After passing through the trickling filter, water is led to the settling tank, where the produced sludge is
settled. Finally a chlorination system is used to disinfect the treated effluent. It should be noted that the kitchen effluent needs to
be pre-treated to remove fat and 4. Furthermore, this project is the first report of designing an onsite grey water treatment system
in a university in Iran.
The investigation and designing of an onsite grey water treatmentsystems at Hazrat-e-Masoumeh University, Qom, IRANand in a manner that is protective of public health and the environment, it can help preserve limited water supplies.Qom Province is located in the central part of Iran, at the Latitude and the Longitude of 34° 38' 24 N and 50° 52' 35 Erespectively. The city of Qom is the 7th most populated city of Iran. With an altitude of 933 meters above the sea level and alocation adjacent to two great deserts Qom has a very hot and dry weather. The salt lake (Daryacheh-ye Namak) in the east of thecity has caused the ground to be usually arid and parched. Due to proximity to desert region, the climatic changes and the lowvalue of precipitation, water resources are under pressure, and under such harsh conditions, water is very precious. The onsitewastewater treatment systems can reduce the water crisis. To this end the Hazrat-e-Masoumeh University was selected as a pilotto investigate the feasibility of reusing the produced grey water.Based on studies undertaken to propose a grey water treatment system, the Hazrat-e-Masoumeh University has recommended theapplication of trickling filters with suspended plastic media. In this method, waste particles (if existing) are first removed fromthe system by a 1cm mesh screen. Then the grey water is conducted to a buried septic tank and the resulting water is pumped to atrickling filter containing suspended plastic media and the sludge, amounting to thrice the discharge of the pumped water isreturned to the septic tank. After passing through the trickling filter, water is led to the settling tank, where the produced sludge issettled. Finally a chlorination system is used to disinfect the treated effluent. It should be noted that the kitchen effluent needs tobe pre-treated to remove fat and 4. Furthermore, this project is the first report of designing an onsite grey water treatment systemin a university in Iran.
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