The Times of India 06.08.2012
Sewage treatment plants to be upgraded for cleaner sewage
NOIDA: The Noida Authority has decided to upgrade the two sewage treatment plants in the city to improve the quality of treated sewage and reduce the amount of pollutants discharged. The plants, which now use the UASB (up flow anaerobic sludge blanket)
technology, will shift to the new sequential batch reactor (SBR)
technology, approved by IIT Roorkee. The board of the Noida Authority
has also given the go-ahead in a recent meeting.
The
upgradation of the plants — one of 34MLD capacity at Sector 50 and the
other of 27MLD at Sector 54 — will cost around Rs 100 crore and the
budget allocation for the project has already been approved by Authority
CEO Sanjiv Saran.
Noida generates 100MLD of sewage from
domestic waste water every day, besides about 18MLD of industrial waste.
The plants can now treat around 75MLD. According to Authority
officials, the upgradation will not only guarantee a clean environment
and ensure better quality of treated water but also stop the use of
groundwater for irrigation as the treated waste water will be diverted
for such purposes. The plants will also be able to treat more waste.
Earlier last year, the SBR technology was introduced at the Sector 54
plant on a trial basis. It was found that the technology had led to a
significant difference in water quality. The biological oxygen demand
(BOD), one of the most common measures of pollutant organic material in
water levels, had also almost halved.
“Tests done by the
pollution control board revealed that levels of organic pollutants in
water had gone down drastically with the introduction of the new
technology. Thus, we have decided to upgrade both the plants to the SBR
technology,” Saran said. “The SBR plant requires one-ninth of
the space required by the UASB system and its latest technology allows
removal of phosphorous and nitrogen, besides the odour,” he added.
technology, will shift to the new sequential batch reactor (SBR)
technology, approved by IIT Roorkee. The board of the Noida Authority
has also given the go-ahead in a recent meeting.
The
upgradation of the plants — one of 34MLD capacity at Sector 50 and the
other of 27MLD at Sector 54 — will cost around Rs 100 crore and the
budget allocation for the project has already been approved by Authority
CEO Sanjiv Saran.
Noida generates 100MLD of sewage from
domestic waste water every day, besides about 18MLD of industrial waste.
The plants can now treat around 75MLD. According to Authority
officials, the upgradation will not only guarantee a clean environment
and ensure better quality of treated water but also stop the use of
groundwater for irrigation as the treated waste water will be diverted
for such purposes. The plants will also be able to treat more waste.
Earlier last year, the SBR technology was introduced at the Sector 54
plant on a trial basis. It was found that the technology had led to a
significant difference in water quality. The biological oxygen demand
(BOD), one of the most common measures of pollutant organic material in
water levels, had also almost halved.
“Tests done by the
pollution control board revealed that levels of organic pollutants in
water had gone down drastically with the introduction of the new
technology. Thus, we have decided to upgrade both the plants to the SBR
technology,” Saran said. “The SBR plant requires one-ninth of
the space required by the UASB system and its latest technology allows
removal of phosphorous and nitrogen, besides the odour,” he added.
