Grundfos dosing pumps play important role in Indian desalination plant

Overview_TEXT

Overview

In Minjur, a town in Thiruvallur district of Chennai in India, will soon be able to overcome a hurdle facing many growing urban areas: an adequate supply of drinking water. Grundfos dosing pumps help solve this problem by contributing to one of the world’s largest sea-water desalination plants. This 100-million litres per day (MLD) desalination plant is being built by Chennai Metrowater and technology partner Befesa Construcciion y Tecnologia Ambiental of Spain. It treats seawater through reverse osmosis (RO) to make it potable.

Spread out across a 60-acre site, the plant contains five modules of 20 MLD each. Among impressive details are an intake tower that draws sea water from 10 metres below sea level, and separate pipelines to draw raw water and discharge wastewater.

An important part of the entire process is chemical adjustment both before and after the removal of salts. Befesa turned to Grundfos for custom-made dosing solutions to fit the bill.

 

The situation
The sea water desalination plant in Minjur will draw over 230 million litres of seawater each day in order to produce 100 million litres of potable water each day. This is equal to 100,000 m3/day. The RO process can be divided in 3 main processes:

  • Pre-treatment: Seawater is filtered and chemically adjusted before proceeding.
  • Reverse Osmosis: Seawater passes across the membranes for salt removal
  • Post-treatment: The treated water is chemically adjusted in order to make it drinkable.

For the pre and post-treatment steps, several chemicals need to be dosed. Flow rates can vary from very low to very high, depending on the number of RO trains that are running at a time.

The customer, Chennai municipality also wished for a turnkey solution that would fit perfectly into the rest of the plant.



The Grundfos solution
Grundfos DME dosing pumps, with its unique digital dosing system, were selected as the absolute best solution to satisfy their needs. A complete dosing skid, equipped with three or four dosing pumps (depending upon needs) was therefore designed by Grundfos. The dosing team at Bombas GRUNDFOS España S.A. included the pumps, a pulsation dampener, a flow meter, and a counter pressure valve.

A total of 28 Grundfos DME dosing pumps went into the total package including the customised skids. All design, construction, and delivery work was done by Bombas GRUNDFOS España S.A..



The outcome

Since being delivered, Befesa, the company building the system has been very satisfied. According to Jose María Centeno, Befesa International Operations Manager, the technical characteristics and capabilities of the Grundfos DME dosing pumps have proven to be excellent.

“We are also very pleased that the design of the skids was made suitable for requirements of the project. We worked well with Grundfos, who asked very important questions when creating dosing skids. Furthermore, we feel very confident in installing these pumps, thanks to the qualified staff from Grundfos India, who can provide local service support. We will operate the plant for the next 25 years, so this is an important factor for us,” he states.

 





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Topic:

Over 100 million litres of drinking water a day will soon be flowing to the residents of Minjur, thanks to Grundfos dosing pumps.

Location:

Chennai in India

Company:

Chennai Metrowater and technology partner Befesa Construcciion y Tecnologia Ambiental of Spain

Grundfos supplied

  • Precise dosing pumps
  • Customised solutions
  • Local service support

 

DME pumps
DME pumps

Pumps supplied:

Dosing
DME 940-4 AR-PV/V/G-S-31A2A2F 10
DME 375-10 AR-PP/E/G-S-31A2A2F 9
DME 60-10 AR-PP/E/C-S-31QQF 3
DME 81-10 AR-PP/E/G-S-3111F 3
DME 150-4 AR-PV/T/C-S-31QQF 3

 

The customised dosing skids
The customised dosing skids were developed exclusively for the Minjur RO plant.
Contacts_TEXT

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Telephone

+91 08055403640 - Toll Free: 1800 - 345 - 4555

Address

"Narayan", 1 St Floor,
Gaurang Co-OP Housing Society,
Near Thatawade Garden, Karvenagar,
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Telephone

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Address

101, First floor,Orion Business Park,
Near Cine Wonder, Ghodbunder Road,
Thane (W) - 400 607.

Contact

If you need a similar solution, please contact us for further information.


Select a company:

Telephone

+91 44 4596 6800 - Toll Free: 1800 - 345 - 4555

Fax

+91 44 4596 6969

Address

No 118, Rajiv Gandhi Salai, Thoraipakkam,
Chennai-97

Telephone

+91 079 40063618 - Toll Free: 1800 - 345 - 4555

Fax

079 40063618

Address

107, 1st Floor, Swapneel - 5,
Nr. Commerce Six Roads,
Navrangpura, Ahmedabad - 380 006.

Telephone

+80 - 26711101/102 - Toll Free: 1800 - 345 - 4555

Fax

080 - 26711101/102

Address

823/4, first floor, Chaitra complex
jayanagar 7th block west
Bangalore - 560070

Telephone

Toll Free: 1800 - 345 - 4555 SMS: 55050

Address

Shohel&Brothers
Hotel Al-Faisal,
1050 Nur Ahamed Road,
Chittagong-4000,
Bangladesh
Tel: +880-31-624897,625749,625750
Fax: +880-31-631261
Email: fluidpower@neosbd.net / nukbd@yahoo.com

Shohel&Brothers
Suite # 14/1 (13th Floor),
City Heart, 67 Naya Paltan,
Dhaka-1000,
Bangladesh
Tel: +880-2-8318672
Fax: +880-2-9331527

Telephone

+91 44 2496 6800 - Toll Free: 1800 - 345 - 4555 SMS: 55050

Telephone

011-30508800/801/802/803/804

Address

Grundfos Pumps India Pvt. Ltd.
301C, 3rd Floor, D21, Corporate Park,
Dwarka Depot, Near Sector 8 Metro Station, Sector 21, Dwarka,
New Delhi – 110075, India

Telephone

+91 40-23731014/23731015 - Toll Free: 1800 - 345 - 4555

Address

Plot No.5,H.No7-1-28/1/5,
Park Avenue Colony,
Divya Shakthi Apt Road,
Ameerpet,
Hyderabad- 500016

Telephone

Toll Free: 1800 - 345 - 4555

Address

Grundfos Pumps India Pvt. Ltd.
Mangalam Chambers,
Block- A,
3rd Floor, Room No.- 303,
24/26, Hemanta Basu Surani .
Kolkata 700001

Telephone

(960) 322992 - Toll Free: 1800 - 345 - 4555

Fax

960 326360

Address

Far Horizon Pvt Ltd
Ma Raahaa, 1st Floor
Koarukendi Magu
Male
Republic of Maldives


Telephone

+91 08055403640 - Toll Free: 1800 - 345 - 4555

Address

"Narayan", 1 St Floor,
Gaurang Co-OP Housing Society,
Near Thatawade Garden, Karvenagar,
Pune - 411052.

Telephone

022 - 25894203 / 25898670

Fax

91 22 - 26861721

Address

101, First floor,Orion Business Park,
Near Cine Wonder, Ghodbunder Road,
Thane (W) - 400 607.