Thane plans to de­sali­nate creek wa­ter for drink­ing pur­pose

Hindustan Times ST (Mumbai) - HT Navi Mumbai Live - - NAVI MUMBAI - Megha Pol megha.pol@hin­dus­tan­times.com

THANE: The acute wa­ter cri­sis faced by the city this year has forced the Thane Mu­nic­i­pal Cor­po­ra­tion to use the vast wa­ter source of the city.

The cor­po­ra­tion has pro­posed to de­sali­nate the Thane creek wa­ter and use it for drink­ing pur­pose. Apart from de­sali­na­tion, a tidal power plant with a ca­pac­ity of eight megawatt power gen­er­a­tion will also be set up.

Both the projects will be set up on pub­lic-pri­vate par­tic­i­pa­tion ba­sis where the cor­po­ra­tion will not have to bear the cost.

The city re­ceives 480 mld of wa­ter from four sources. This sum­mer, the wa­ter avail­able was merely 314 mld im­pos­ing a wa­ter cut of over 35 per cent in the city. The res­i­dents have to face shut down from 48 to 60 hours.

Su­nil Pote, deputy city en­gi­neer, wa­ter de­part­ment said, “The city has a waste creek, the wa­ter from which will be an end­less source to deal with the wa­ter cri­sis in the city. The wa­ter at most places in the creek is not pol­luted and can be used for potable pur­pose. We have pro­posed to set up a de­sali­na­tion plant to de­sali­nate the creek wa­ter and gen­er­ate 20 mld of drink­ing wa­ter daily.”

This kind of de­sali­na­tion plant has been set up in coun­tries such as Ja­pan, Australia, China, North Africa and Euro­pean coun­tries. In In­dia the plants have been set up in Gu­jarat and Chen­nai.

“A com­pany from Pune has tech­ni­cal ex­per­tise in the pro­ject and they have shared it with us. The cor­po­ra­tion will hire tech­ni­cal ex­perts to re­search and pre­pare a de­tailed pro­ject re­port,” Pote added.

The TMC will spend Rs15 lakh to hire con­sul­tants for the pro­ject.

It will pro­vide the land and bear elec­tric­ity cost of the pro­ject. The re­main­ing ex­penses will be in­curred by the agency al­lot­ted the work.

The com­pany will be re­spon­si­ble to en­sure that the potable wa­ter ful­fills all the re­quired wa­ter qual­ity cri­te­ria. This wa­ter will be con­nected to the dis­tri­bu­tion sys­tem of the cor­po­ra­tion. The com­pany can sell the wa­ter to the TMC at the rates fi­nalised by the cor­po­ra­tion, the com­pany can also sell few bot­tled wa­ter to re­move the main­te­nance ex­pense of the plant.

TIDAL POWER PLANT TO BE SET UP IN THE CITY

The cor­po­ra­tion has pro­posed to set up a tidal power plant with a ca­pac­ity of eight megawatt be­low the pipeline bridge near Kasheli creek. The high and low tides in the Thane creek and Ul­has river gen­er­ate po­ten­tial and ki­netic en­ergy which can be con­verted into elec­tric­ity.

“Most coun­tries have car­ried out ex­ten­sive re­search in us­ing the tidal en­ergy to gen­er­ate elec­tric­ity in the last 30 years,” Pote said.

“The tides be­low the pipeline bridge are as high as 4.67 me­tres. Tap­ping the en­ergy of th­ese tides will gen­er­ate 3.43 crore units of power in one year. This power will be used by the cor­po­ra­tion it­self for its own prop­er­ties. The ex­cess power can be trans­ferred to the grid of the power com­pa­nies,” he said.

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