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Water Treatment


Ensure quality of RO plants, says VMC chief

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The Hindu             23.09.2014  

Ensure quality of RO plants, says VMC chief

Municipal Commissioner C. Hari Kiran instructed the civic officials to procure the best quality equipment for the Reverse Osmosis (RO) plants to be established under the first phase of NTR Sujala Sravanthi scheme in different parts of the city.

In a review meeting on the subject at Vijayawada Municipal Corporation (VMC) office on Monday, Mr. Kiran said RO plants were to be set up in 10 divisions (8, 9, 13, 14, 26, 43, 45, 54, 56 and 57) in the initial phase for which lands were already identified. The officials should ensure that the RO plants did not hinder movement of vehicles while ensuring easy accessibility.

A sum of Rs. 14 lakh was sanctioned for construction of sheds in the respective divisions and Rs 10 lakh for providing bore-wells. Quality should be ensured lest penal action should be taken against the derelict officers, he warned.

VMC Superintending engineer Md. Imam Mohiddin, City Planner S. Chakrapani, Chief Medical Officer P. Ratnavali and Assistant City Planner V. Suneetha were among the participants.

 

BMC to set up sewage treatment plant at Mahim

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The Times of India            04.02.2014

BMC to set up sewage treatment plant at Mahim

MUMBAI: The Brihanmumbai Municipal Corporation (BMC) has planned to set up a sewage treatment plant at Mahim Causeway. Treated water from this one million litre daily (mld) plant will be used for purposes other than drinking like gardening.

Standing committee chairman Rahul Shewale said, "The plant, to be built at the inward pumping station at Mahim Causeway, will be completed in next six months. Treated water from this plant will be used in gardens in Mahim and surrounding areas. This will help us in saving the potable water."

According to the civic officials, the plant will be set up on the basis of Rotating Media Biological Reactor (RMBR) technology. The Hindustan Cocacola Beverages (HCB) Pvt Ltd has decided to fund this sewage treatment plant project as a part of its social corporate responsibility (CSR).

Officials of the BMC and the HCB on Thursday signed an agreement to this effect at the civic headquarters. According to the pact, the company will not only bear the project cost, but will also operate and maintain the plant for the first three months.

The work to set up and maintain a sewage treatment plant at Mahim Causeway has been allotted to M/s Naik Environmental Engineers at an estimated cost of Rs 1.5 crore. The bidder has also set up sewage water treatment plants at College of Military Engineering, Pune and Central PWD Colony, Belarpur, which are running successfully, said civic officials.

According to the civic officials, the water supply demand has been increasing continuously due to the rising city population. With rains playing truant these days, the stocks are also limited, which compels the BMC to plan its use by making water cuts. In such circumstances, the use of recycled sewage water for purposes other than drinking can be a better option.


The BMC has also shortlisted seven sites - Colaba, Worli, Ghatkopar, Bandra, Versova, Malad and Bhandup - for setting up sewerage treatment plants in the city. Nearly 2493 million litre daily (mld) waste water could be treated. This is apart from the 150 mld water recycling plant to be set up at Ghatkopar on BOOT (build, own, operate and transfer) basis.

 

Recycled Hussainsagar water to go on sale at Kacheguda, Nampally stations

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Deccan Chronicle               30.01.2014

Recycled Hussainsagar water to go on sale at Kacheguda, Nampally stations

HyderabadThe Buddha Purnima Project environmental wing of the Hyderabad Metropolitan Development Authority (HMDA) will sell eight million litres of non-potable water per day through three filling stations that will be constructed on Necklace Road in the coming months.

Though 50 million litres of treated water from two Sewerage Treatment Plants (STP) flows into the lake daily, Hussainsagar needs only 35 MLD for lake balance. Of the remaining 15 MLD, the civic body will use 7 MLD for landscaping and gardening around the water body and the rest will be sold. This the first time the lake’s water is being recycled and sold.

Member environment, BPP-HMDA R.P. Khajuria said that the non-potable treated water can be used for irrigation, construction, landscaping, gardening and washing purpose.

Two construction firms have approached the BPP and GHMC authorities and Imax has come forward to purchase as well. The price per tanker will be as per current borewell tanker charges.

According to the BPP officials, the South Central Railway has also come forward to accept 1.10 MLD recycled water (0.6 MLD at Nampally railway station and 0.5 MLD at Kacheguda station).

The treated water contains dissolved oxygen less than 3 milligrams per litre (mg/l), residual chlorine from 0.1 to 0.2 mg/l, and other elements like nitrogen, phosphorus, coliform and suspended solids.

“The main pipeline towards each filling station is designed to supply 450 cubic metres per hour to cater to demands in addition to filling tankers,” an official added.

Recycled Water availability

Tanker filling stations: 3 on Necklace Road

Filling points at each station: 4 (total tanker filling point 12)

Volume of each tanker: 10,000 litres

Maximum water flow at each filling point: 69 cubic metre per hour)

Time taken to fill a tanker: 10 minutes

Tanker filling capacity of each filling point: 4 tankers per hour (filling capacity at each station is 16 making it 48 tankers per hour for all centres combined)

Water consumed for tanker filling: 480m3 per hour

Total recycled water supplied through tankers over 8 hours - 3840 m3/8 hrs

 

VMC begins work on sewage pumping station at Sardarbaug, Alkapuri

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The Times of India          28.01.2014

VMC begins work on sewage pumping station at Sardarbaug, Alkapuri

VADODARA: The Vadodara Municipal Corporation (VMC) kicked off work on a sewage pumping station (SPS) near the Sardarbaug swimming pool in the Vadiwadi area adjoining Alkapuri. The project is coming up at a cost of Rs 1.96 crore.

The SPS had become necessary in wake of the accumulation of sewage water in a depression near the swimming pool. Some water from this also seeped into the swimming pool and users had raised the issue with the VMC recently.

VMC officials said that the new swimming pool will ensure that the problem is taken care of. The project will also ensure that the load on the sewage line from the Genda Circle to the BPC Road via Alkapuri is reduced.

The depression filled with sewage water had also raked up a row recently when a school located near it asked its students to wear clothes that cover their hands and legs in wake of mosquito menace. The opposition Congress in the VMC had come down heavily on the VMC after this suggestion by the school to its students. 

 

Hoskote still uses City's sewage for irrigation

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Deccan Herald             23.01.2014 

Hoskote still uses City's sewage for irrigation

Authorities in Hoskote town, which has been using Bangalore’s sewage water for last two and half years for irrigation, potable and non-potable purposes, have chalked out a plan to revive 29 tanks to solve the water crisis.  But the proposal is gathering dust due to age-old agreement.

The minor irrigation department, after detailed study of 20 years, had drawn up a mechanism by which sewage from east and north Bangalore entering Yellamallappashetty Lake through stormwater drains was lifted to Doddakere in Hoskote.

This water was used for irrigation purposes. It is still being used to cultivate vegetables and fruits. Just by diverting sewage water from Yellamallappashetty Tank near K R Puram in Bangalore Urban District to Doddakere in Bangalore Rural District, water problem of Hoskote Taluk had been solved to a large extent. This also helped restore 40 per cent of borewells in the area. People here, even now use this water (drawn from borewells) for potable and non-potable purposes. Water quality analysis shows it is not polluted and fit for consumption.

“After tasting success here, we chalked out another proposal to revive 29 more tanks in Hoskote Town. The proposal, along with design plans, was submitted through Urban Water Supply and Sewage Board. The proposal was first mooted eight years ago. But the plan never moved forward. It was proposed again three years ago but has been stalled due to objections raised by Tamil Nadu government to projects in Dakshin Pinakini basin,” an official said. In 1892, Madras and Mysore governments had entered into an agreement that Tamil Nadu should be consulted before diverting or using water from this river. But officials here now question: “There is no river as it has dried up. Instead, sewage water flows through it. So the project can be implemented.”

The project of reviving 29 tanks will cost the government Rs 45 crore. According to department officials, if 2.57 tmc ft is pumped for seven months, it will fill around 1,000 borewells in the taluk and help over two lakh people.

Hoskote Town Municipal Council Junior Engineer Poornima N said due to this ground water level which was below 1,000 ft has now increased to over 800 ft. Last year there was heavy rainfall due to which Doddakere and Yelemallappa Shetty Lake filled up. Now if the project is delayed and there are no rains, the water problems will intensify again. For the last two years we have been depending on this sewage water lake for all needs and have been using it too, she said.

 


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