Urban News

  • Increase font size
  • Default font size
  • Decrease font size
Water Treatment


Sewage Treatment Plants lose lake pollution battle

Print PDF

The Times of India                  10.04.2013

Sewage Treatment Plants lose lake pollution battle

HYDERABAD: The Sewage Treatment Plants (STP) installed near 14 lakes of the city are not good enough to get rid of pollutants and most of the 'treated water' cannot sustain aquatic life and is poisonous enough to kill thirsty domestic animals.

A latest report by the Pollution Control Board (PCB) on STPs revealed that water in lakes still contain pollutants much higher than the permissible limits even after treatment. Readings of the treated water of STP at Khairatabad and at the Hussainsagar lake, between June, 2012 and February 2013, show the presence of high levels of BOD (Biological Oxygen Demand) and COD (Chemical Oxygen Demand) in the treated water.

The permissible levels of BOD are not more than 30 ms/l and that of COD is 250 ms/l. However, BOD levels were found to be as high as 116 ms/l and those of COD were found to be touching 284 ms/l in some of the monthly readings, which means the water still cannot support aquatic life.

Another analysis conducted at the Amberpet STP in February this year showed that the pH value of the treated water was 9.4, whereas the permissible range is between 5.5 and 9, which means the water is alkaline in nature. "The high levels of COD and BOD in Hussainsagar prove that it is highly contaminated and not fit for anything. Not only is this water poisonous to aquatic animals but also a great threat to domestic animals like cattle and dogs which may quench their thirst with the lake water," said K Babu Rao, an environmentalist and scientist.

The high alkaline levels at Amberpet STP is also pose a grave threat to the people of the surrounding areas as the Musi lake water may percolate into ground water, environmentalists say. "The usage of highly alkaline water even for domestic purpose may result in a various health conditions including skin infections to respiratory disorders," Babu Rao added.

Even in the past, environmentalists criticized about the low capacity of these STPs which render it ineffective in completely treating waste water. The existing capacities of the STPs range from 4 mld to 339 mld.

A senior official of pollution board said that only a small part of waste water is being treated at the STPs whereas most of it is getting routed back into the lake. "These STPs have low capacity and hence, it is not possible to store and hold large volumes of waste water," he said on condition of anonymity.

Power disruptions are also adding to the problem with the STPs not functioning for at least three hours everyday, thanks to the power cuts. "The administration has absolutely no back-up mechanism in place to ensure that STPs function continuously," said Thakur Rajkumar, covenor, SOUL (Save Our Urban Lakes). "These plants cannot run with generators or inverters since they need a lot of power and the result is untreated water keeps flowing into the lakes for hours together. If this goes on throughout summer, then the condition of lakes will only worsen," he added.

Last Updated on Wednesday, 10 April 2013 12:08
 

Diversion of sewage from Vishwamitri not anytime soon

Print PDF

The Times of India                  10.04.2013

Diversion of sewage from Vishwamitri not anytime soon

VADODARA: Struggling to take care of the issue of sewage discharge into Vishwamitri, Vadodara Municipal Corporation (VMC) has put two drainage pressure lines. But the lines are yet to become functional as the railway is yet to give permission for making the lines across the railway tracks.

The VMC had taken up the work of laying two pressure lines from the sewage auxiliary pumping station (APS) near Kalaghoda bridge and the APS near SSG Hospital. The water from both these APS was to be taken to the sewage treatment plant (STP) at Atladara for treatment through two pressure lines.

While the VMC laid the pressure lines, the section of work under the railway tracks at Parshuram Bhattha in Sayajigunj that the lines have to cross has remained pending. VMC official said work both under and over the railway tracks can be conducted either by the railways or with permission of the railways. The drainage department of the VMC stated this in a communication to Vishwamitri project office of the civic body.

VMC in-charge deputy executive engineer (drainage) K L Patel said lines from the Kalaghoda bridge APS and SSG Hospital APS to the tracks and from thereon to the STP had been laid. He added that these had been tested as well. "Once the work under the track gets over, they can become functional," he said.

According to the drainage department, the testing of the lines has also been conducted. It states that the process of seeking permission from the railways for the line from Kalaghoda bridge APS had been taken in June 2010 while that from the SSG Hospital APS had been initiated in November 2011. The civic body has made alternative arrangements for ensuring that the water from Kalaghoda bridge APS is not released into the river, but that from SSG Hospital makes its way to the Vishwamitri.

VMC officials said the civic body has identified 36 spots where untreated sewage is being released into the river.

"These include those from a trickle to major discharges. We are in the process of ensuring that this stops. We expect that within two years no untreated waste will be released into the river," said an official.
Last Updated on Wednesday, 10 April 2013 11:21
 

Civic body has no plans to revive water filtration plant

Print PDF

The Times of India                     09.04.2013

Civic body has no plans to revive water filtration plant

NASHIK: Despite being at the receiving end over Godavari pollution, the Nashik Municipal Corporation (NMC) has failed to revive the filtration plant at Ramkund and is undecided about it.

The water treatment plant was installed at Ramkund on the banks of Godavari during the last Simhastha Kumbh mela in 2003-04 to help clean the water of pollutants. The machine now gathers dust at the filtration plant on Dindori Road and civic officials of the NMC's mechanical department say that there are no plans to restart it.

The treatment plant was installed taking into consideration the amount of puja material and other things that would be thrown into the river during Kumbh, but the unit was packed and transported to the NMC's filtration plant at Dindori Road after a couple of years.

Now with an NGO dragging the NMC to court over river pollution, the civic body has filed an affidavit on what it would do to clean the river. But officials are not sure if they would use the treatment plant, despite the fact that the ensuing Kumbh mela would demand extra effort to keep the river clean.

When contacted, municipal commissioner Sanjay Khandare said, "We will have to judge the feasibility. We are not ruling out the option of using it during the Kumbh. We will decide as per the requirement."

An engineer of the NMC's mechanical department said that the machinery had been dismantled and shifted to the filtration plant on Dindori Road so that the parts would be safe. "The unit was used for a couple of years after installation but it was not effective. It used to get jammed," he said.

A senior engineer of the mechanical department added that people throw rice, earthen or flour-based lamps, flowers and other items in the river that chokes up the pipes and the machine and the pipes had to be cleaned frequently.

It may be recalled that about six months ago, a central government agency - the Tourism Finance Corporation of India - had submitted a survey report revealing that the water in Godavari was not only unfit for drinking but also unfit for bathing. Subsequently, in February the Bombay High Court, acting on a PIL filed by an NGO, the Godavari Gatarikaran Virodhi Manch, had ordered the NMC to put up warning boards about the river being polluted.
Last Updated on Tuesday, 09 April 2013 12:01
 

Sewage treatment plant in IMT Manesar delayed

Print PDF

The Times of India                    08.04.2013

Sewage treatment plant in IMT Manesar delayed

GURGAON: The project to construct a new sewage treatment plant in IMT Manesar has been postponed by over a month in its very initial stages, according to the industry authority HSIIDC, which cited 'administrative reasons' explaining the delay.

"We have revised the last date of opening of tenders for the private firms. The bids will now be opening on May 30," said an official. Proper waste-management in IMT Manesar has always been a challenge for the authorities, with the industries here generating millions of gallons of effluent waste every day that often choked up the sewer lines.

According to the proposal, the new plant is to have a carrying capacity of 25 million gallons a day (MGD), exceeding the volume of sewage treated at the existing plant by about 10 MGD.

The HSIIDC has earmarked about Rs 66 crore for the project, which will include upgrade work on the existing treatment plant by doubling its capacity. "The private firm will be given authority to plan, design and construct the new treatment plant. And once the work is done, the firm will be given the responsibility to operate and maintain the new plan for about 120 months, before we take it over," the official said.
Last Updated on Thursday, 18 April 2013 06:34
 

Recycling plan to save water for drinking fails to take off

Print PDF

The Times of India                    08.04.2013

Recycling plan to save water for drinking fails to take off

PUNE: The PimpriChinchwad Municipal Corporation (PCMC) is yet to start work on its ambitious project to recycle treated water, four years after the corporation proposed the project. The project would prevent use of drinking water for industrial purposes and reduce water shortage experienced in some areas in the municipal limits.

The PCMC's plan to supply 120 MLD (million litres per day) treated water from its sewage treatment plants at Kasarwadi to industries in the municipal limit was to be implemented on a public-private partnership basis. However, civic officials say a foreign company that had initially evinced interest in the recycling project later backed out. The officials said the project also required a large investment.

The water scarcity prevailing in the state has brought to the fore the importance of using water judiciously. Besides, drinking water needs of Pimpri Chinchwad are increasing along with the population. The irrigation department supplies a fixed amount of water to the PCMC from the Pavana dam, which needs to be used sensibly so that citizens get adequate water, say civic activists.

At present the municipal corporation supplies 425 million litres drinking water per day to the city. The corporation treats around 260 MLD sewage at its treatment plants and releases the treated water back into the rivers. The civic administration says that if a large portion of this treated water is recycled and used for industrial or other non-drinking purposes, the drinking water quota can be utilised to meet the city's growing needs.

Deputy chief ministerAjit Pawar, during his visits to Pimpri Chinchwad, has consistently pointed out the need to recycle water. It was based on his suggestion that the administration mooted the project.

Civic officials said that some industries in the municipal limits use drinking water supplied by the Maharashtra Industries Development Corporation (MIDC) for their industrial and drinking usage. They said the state government needed to give incentives to these industries to switch to PCMC's treated water. The government should also provide compensation to the MIDC for its losses, the officials said.

Civic body mulls one-time water supply

Pune: The water supply department of the Pimpri Chinchwad Municipal Corporation (PCMC) is considering a proposal to supply water to the city only once a day to ensure equitable supply during the summer.

Citizens will, however, continue to get the same quantity of water.

Acting city engineer and chief of the civic water supply department MT Kamble said, "The demand for water in the municipal limits goes up every summer. As a result, the areas at the end of the pipeline network face water shortage during the season. So the civic water supply department is considering a proposal to supply water once a day instead of two times."

Kamble said, "The quantum of water supplied to each area will remain the same; we will supply the whole quota at one time. This will ensure that sufficient water reaches the tail-end areas of the pipeline network."

"As civic office-bearers and corporators will be taken into confidence before implementing this proposal, the actual implementation will take time," Kamble added.

Another civic official said, "Various parts of the state are facing severe drought. So there is a likelihood that the relatives of local residents from these drought-affected areas might migrate to our city in large numbers. Moreover, local residents who normally go to their native villages in summer will not do so if the villages are drought hit. As a result, the demand for water in the city is expected to increase more than usual this summer. So there is a need for people to conserve water and reduce wastage."
Last Updated on Monday, 08 April 2013 11:41
 


Page 18 of 33