4:55 AM
NEERI's innovation shows scientific way of rejuvenating Nag river
HOW to rejuvenate urban water resources? How to treat the sewage? How to utilise the treated sewage at low maintenance cost? These are the questions faced by authorities in urban areas, these days. As far as Nagpur and its signature Nag river are concerned, for more than nine years, an excellent demonstration plant for utilisation of treated sewage with low maintenance cost is in continuous operation successfully.
There are natural well and systems such as mangroves which treat and evaporate water in marshy lands. Based on the similar principles, constructed wetland systems are
designed. Phytorid is a sub-surface flow constructed wetland system (SSFCW) developed by CSIR-National Environmental Engineering Research Institute
(NEERI). Nagpur. with sue scessful demonstration in the
Held for more than nine years of continuous operation as a standalone sewage treatment system, on the banks of Futala stream of Nagriver, near Maharajbag. In the demonstration plani for utilisation of treated sewage with low
maintenance cost. CSIR-NEERI Phytorid Technology has generated more than 70 millions of water till dale since it was put into action on June 5. 2012. Director of NEERI
Dr S R Wate must be thanked for his guidance and initiatives in implementing the technology to the benefit of people-
Considering the project in Maharajbag as pilot one. and based on the experience of low maintenance.
it was decided to explore the feasibility of more Phytorid plants along Nag river. The decision on exploring the feasibility of the project, wastaken in a meeting with Divisional Commissioner (Nagpur Anoop Kumar under the chairmanship of
Chairman of Maharashtra WaterResources Regulatory Authority(MWRR) Ravi Budhiraja.
Against this backdrop, it is necessary for the people to know how the scientific project is working wonders, and showing the way for rejuvenation ot urban water rGSOUTCCS. The domestic wastewater is treated in three different stages namely screening of floating material, settling of solids in settling chamber. and removal of organic pollutant and nutrients from waste water in phylorid bed. The hear! of the system
is Phytorid bed. in which there aretanks filled with different gradation of gravels. On the gravel bed. saplings
are planted. These plants arc specifically from the category of hydrophytes, which can take up nutrients from water directly and do not need soil. In the Phytorid bed. plants
have two functions: transfer of oxygen from air to root zone, and nutrient uptake.The oxygen transferred to rootzone is used in biochemical oxidation of organic pollutants thereby reducing the pollution from water. The nutrient uptake, such as nitrates
and phosphates reduces their concentrations. Pathogenic hactcria are removed in the bed due to repeated filtration occurring in the bed. In this way, wastewater gets treated to the quality of water useful for irrigation. An additional disinfec-lion step may be added, if desired. The Phyiorid systems have distinct advantages over conventional treatment plants. The technology is suitable for decentralised plants with varying capacities of 5 m3/day to 810MLD. The best feature of Phytorid Technology is that no mechanical or electrical machineries are involved. This gives an advantage for sustainable, low operation and maintenance cost for Phytorid. In view of meeting the demand of water for Maharaj Bag Garden and experimental farming of Agricultural College. Panjabrao Deshmukh Krishi Vidvapeeth (PDKV) decided to use CSIR-NEERrsPhyiorid Technology for ircalmcnt of sewage flowing through an open channel in the premises of agricultural college. With permission from Nagpur Municipal Corporation (NMO) to draw wastewater from open channel. PDKV installed a Phytorid Plant with technical support from CSIR-NEERI. The plant is having capacity of 100 m3 and is maintained by Agricultural College of PDKVwith the help of gardeners. The system includes intake-well, settling chamber. Phytorid bed. and treated water tank. The treated water is being used
for irrigation in PDKV farms. The quality of treated water is being monitored regularly by PDKV and NEERI to ensure its suitability for reuse according to Environment Protection Rules. 1986. The Biological Oxygen Demand (BOD)
and Chemical Oxygen Demand (COD) values of the treated water are below 30 and 100 mg/L respectively. The recurring cost of this plant includes running cost for a single 1 HP pump and no repairs or maintenance were required to be carried
out in past two years."1 Ik- system, if installed in large numbers in decentralised manner. will be potential sustainable option
for treating domestic sewage and explore reuse of the water con-comitantly.
designed. Phytorid is a sub-surface flow constructed wetland system (SSFCW) developed by CSIR-National Environmental Engineering Research Institute
(NEERI). Nagpur. with sue scessful demonstration in the
Held for more than nine years of continuous operation as a standalone sewage treatment system, on the banks of Futala stream of Nagriver, near Maharajbag. In the demonstration plani for utilisation of treated sewage with low
maintenance cost. CSIR-NEERI Phytorid Technology has generated more than 70 millions of water till dale since it was put into action on June 5. 2012. Director of NEERI
Dr S R Wate must be thanked for his guidance and initiatives in implementing the technology to the benefit of people-
Considering the project in Maharajbag as pilot one. and based on the experience of low maintenance.
it was decided to explore the feasibility of more Phytorid plants along Nag river. The decision on exploring the feasibility of the project, wastaken in a meeting with Divisional Commissioner (Nagpur Anoop Kumar under the chairmanship of
Chairman of Maharashtra WaterResources Regulatory Authority(MWRR) Ravi Budhiraja.
Against this backdrop, it is necessary for the people to know how the scientific project is working wonders, and showing the way for rejuvenation ot urban water rGSOUTCCS. The domestic wastewater is treated in three different stages namely screening of floating material, settling of solids in settling chamber. and removal of organic pollutant and nutrients from waste water in phylorid bed. The hear! of the system
is Phytorid bed. in which there aretanks filled with different gradation of gravels. On the gravel bed. saplings
are planted. These plants arc specifically from the category of hydrophytes, which can take up nutrients from water directly and do not need soil. In the Phytorid bed. plants
have two functions: transfer of oxygen from air to root zone, and nutrient uptake.The oxygen transferred to rootzone is used in biochemical oxidation of organic pollutants thereby reducing the pollution from water. The nutrient uptake, such as nitrates
and phosphates reduces their concentrations. Pathogenic hactcria are removed in the bed due to repeated filtration occurring in the bed. In this way, wastewater gets treated to the quality of water useful for irrigation. An additional disinfec-lion step may be added, if desired. The Phyiorid systems have distinct advantages over conventional treatment plants. The technology is suitable for decentralised plants with varying capacities of 5 m3/day to 810MLD. The best feature of Phytorid Technology is that no mechanical or electrical machineries are involved. This gives an advantage for sustainable, low operation and maintenance cost for Phytorid. In view of meeting the demand of water for Maharaj Bag Garden and experimental farming of Agricultural College. Panjabrao Deshmukh Krishi Vidvapeeth (PDKV) decided to use CSIR-NEERrsPhyiorid Technology for ircalmcnt of sewage flowing through an open channel in the premises of agricultural college. With permission from Nagpur Municipal Corporation (NMO) to draw wastewater from open channel. PDKV installed a Phytorid Plant with technical support from CSIR-NEERI. The plant is having capacity of 100 m3 and is maintained by Agricultural College of PDKVwith the help of gardeners. The system includes intake-well, settling chamber. Phytorid bed. and treated water tank. The treated water is being used
for irrigation in PDKV farms. The quality of treated water is being monitored regularly by PDKV and NEERI to ensure its suitability for reuse according to Environment Protection Rules. 1986. The Biological Oxygen Demand (BOD)
and Chemical Oxygen Demand (COD) values of the treated water are below 30 and 100 mg/L respectively. The recurring cost of this plant includes running cost for a single 1 HP pump and no repairs or maintenance were required to be carried
out in past two years."1 Ik- system, if installed in large numbers in decentralised manner. will be potential sustainable option
for treating domestic sewage and explore reuse of the water con-comitantly.
Posted in: News 2014
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