http://www.engineeringnews.co.za
  SEARCH
Login
R/€ = 14.58Change: -0.05
R/$ = 10.55Change: -0.04
Au 1299.15 $/ozChange: -4.80
Pt 1439.20 $/ozChange: -5.30
 
 
Note: Search is limited to the most recent 250 articles. Set date range to access earlier articles.
Where? With... When?








Start
 
End
 
 
And must exclude these words...
Close Main Search
Close Main Login
My Profile News Alerts Newsletters Logout Close Main Profile
 
Nelson Mandela 1918 - 2013   Agriculture   Automotive   Chemicals   Competition Policy   Construction   Defence   Economy   Electricity   Energy   Environment   ICT   Metals   Mining   Science & Technology   Services   Trade   Transport & Logistics   Water  
What's On Press Office Suppliers Directory Research Jobs Announcements Contact Us
 
 
 
RSS Feed
Article   Comments   Other News   Research   Magazine  
 
 
May 27, 2011

Israel showing the water-technology way

Back
SYDNEY|TEL AVIV|Energy|Flow|IDE Technologies|Industrial|Mekorot|Netafim|Power|PROJECT|Projects|Renewable-Energy|System|Systems|Australia|China|India|Israel|Italy|Kenya|Swaziland|Ashkelon Plant|Hadera Plant|Shafdan Plant|Biological And Chemical Processes|Developed Technology|Electricity Needs|Flow|Food|Landfill Site|Natural Biological Systems|Phytotechnology Applications|Arava Desert|Negev Desert|Eli Cohen|Fredi Lokiel|Gal Shoham|Igal Aisenberg|Naty Barak|Yair Zadik|Drainage|Middle East|Wastewater Treatment
sydney|tel-aviv|energy-company|flow-company|ide-technologies|industrial|mekorot|netafim|power-company|project|projects|renewable-energy-company|system|systems-company|australia-country|china|india|israel|italy|kenya|swaziland|ashkelon-plant|hadera-plant|shafdan-plant|biological-and-chemical-processes|developed-technology|electricity-needs|flow-industry-term|food|landfill-site|natural-biological-systems|phytotechnology-applications|arava-desert|negev-desert|eli-cohen|fredi-lokiel|gal-shoham|igal-aisenberg|naty-barak|yair-zadik|drainage-product|middle-east|wastewater-treatment
© Reuse this



Israel, a water-constrained country, is leaving no stone unturned in conserving this precious resource through a range of measures, including recycling, efficient use and desalination.

The country currently recycles about 75% of its municipal effluent for irrigation, mostly in the arid south, which receives a measly 100 mm/y of rainfall. An ambitious target of 100% recycling by 2014 has been set and, by that date, all agriculture in Israel will be based on retreated water, according to water utility Mekorot professional instructor Gal Shoham.

He told journalists from across the globe during a recent tour of Mekorot’s Shafdan wastewater treatment plant, in the Dan region, that, while the recycled water is used for irrigation, it is of potable quality and contributes to preserving the environment by curbing ecological damage caused by untreated wastewater.

Serving about two-million people in the densely populated Dan region, which incorporates the city of Tel Aviv, the Shafdan plant – Mekorot’s largest and one of the most advanced in the Middle East – treats 130-million cubic metres of wastewater a year.

Secondary effluent from the plant is used to infiltrate fields in Rishon Letzion and Yavne. From these fields, the effluent is recharged into aquifers, where it undergoes natural physical, biological and chemical processes that improve its quality. Water from the aquifers is pumped to the Negev desert, about 90 km away, where it is used for irrigation by citrus, carrots, potato, lettuce, wheat and flower growers.

Besides the Shafdan plant, Mekorot operates five other wastewater treatment plants with a daily flow of 460 000 m3 and a yearly capacity of about 180-million cubic metres.

Mekorot accounts for about 40% of the wastewater treated in Israel, or about 200-million cubic metres a year, and for the reuse of 60% of the country’s treated wastewater for agriculture.

The touring journalists – from all continents of the world – were also able to visit Ayala Water & Ecology, which has developed natural biological systems for the purification and enhancement of water, soil and air. The wastewater Ayala treats includes effluent from dairy farms, poultry farms and abattoirs, as well as other agricultural enterprises.

The company’s natural biological systems are also capable of treating domestic and industrial effluent containing oils, fats, hydrocarbons, emulsions and detergents, besides other things.

The company operates a facility at the Hiriya landfill site, in the Dan region, that treats landfill leachate as well as fresh garbage and contaminated drainage.

Ayala’s cutting-edge technology has been recognised internationally and its founder, Eli Cohen, is Israel’s representative on the North Atlantic Treaty Organisation’s environmental specialist team in the phytotechnology applications field.

Ayala’s Hiriya site is a stone’s throw away from Arrow Ecology, which has developed technology that separates biodegradable organics like food and paper out of solid municipal waste before it is used to produce biogas that is fed into combined heat and power plants. The Hiriya site generates 1 MW of its electricity needs.

Solids like plastics are sold for recycling, while sludge from anaerobic reactors is used for agricultural purposes.

CEO Yair Zadik said the company’s 150 t/d plant treated 5% of all the garbage generated in Israel and that its technology could reduce landfilling by up to 80%.

Arrow Ecology built the first plant outside Israel, in Sydney, Australia, in 2008 and is to soon build further plants in Italy, China and India.

On the efficient water use front, Israel’s Netafim is perhaps the most well known enter- prise, with its drip irrigation systems now manufactured or distributed in several regions of the world.

The drip systems ensure that water is released directly onto a plant, tremendously cutting back on the amount of water used by irrigation methods such as flooding or sprinkling.

Netafim chief sustainability officer Naty Barak said during a tour of the company’s plant at the Hatzerim kibbutz – or gated community – that, thanks to drip irrigation, Israel’s Arava desert, which receives only about 20 mm/y of rainfall, has been turned into a significant agriculture hub, accounting for 65% of the country’s vegetable exports.

Netafim president and CEO Igal Aisenberg said the major success stories of drip irrigation on the African continent were the 11 600 ha Simunye sugar estate, in Swaziland, and the Kitui irrigation scheme, in Kenya’s arid east.

“[At Simunye], a cost analysis of seven different irrigation options was undertaken, and the one that offered the best return was the conversion of the dragline sprinkler system to subsurface drip irrigation.

“A postinvestment audit confirmed a sucrose increase of 15% and a water saving of 22%, compared with the sprinkler system, and this was better than originally expected,” said Aisenberg.

At Kitui, donors led by the United Nations Food and Agriculture Organisation launched a drip irrigation project for 200 poor small-scale vegetable growers, most of whom were women and old people who could not continue irrigating their crops with buckets.

Moving from bucket to drip irrigation increased yields and income by 140% and 200% respectively, and saved water use by around 60%.

Meanwhile, desalination will account for 450-million cubic metres of Israel’s yearly water consumption of 1,4-billion cubic metres – up from about 300-million at present – when the Sorek seawater reverse-osmosis (SWRO) plant, currently under con- struction, starts operating in mid-2013.

The150-million-cubic-metre-a-year plant is being built by IDE Technologies, a joint venture between Israeli enterprises ICL Group and Derek Group. IDE built and operates – under a 25-year ‘build, operate and transfer’ (BOT) deal – the 118-million- cubic-metre-a-year Ashkelon plant, which was commissioned in 2005, and the 127-million- cubic-metre Hadera plant, which has been operating since 2009.

The Hadera plant – currently the biggest of its kind in the world – is also a 25-year BOT project.

The Via Maris consortium runs Israeli’s third operational SWRO desalination plant, Palmachim, with a capacity of 45-million cubic metres a year.

IDE Technologies executive VP for special projects Fredi Lokiel told Engineering News that the use of technologies like IDE’s proprietary three-centre technology and cascade boron treatment had helped the company to achieve some of the lowest costs for high-quality desalinated water at both Ashkelon, where a cubic metre costs $0,53, and at Hadera, where the cost is $0,57/m3.

He said that of the 1,4-billion cubic metres of water consumed in Israel each year, about 750-million cubic metres is used for domestic purposes, which meant that the 300-million-odd cubic metres supplied by the Ashkelon, Hadera and Palmachim plants accounts for close to 50% of Israel’s domestic water, as desalinated water is not used for agriculture or industrial purposes.

• Israeli companies and many others from across the globe will showcase their water, environmental and renewable-energy technologies at the Water 2011 conference and exhibition, in Tel Aviv, in November. The last Watec event, held in 2009, was attended by more than 20 000 people from 94 countries.

Zhuwakinyu visited Israeli as a guest of the Israel Export and International Cooperation Institute

.
Edited by: Martin Zhuwakinyu
© Reuse this Comment Guidelines
 
 
 
 
 
 
 
 
Other Water News
President Jacob Zuma on Friday launched the more than R12.45-billion Mzimvubu water project, which would include the building of the Ntabelanga and Laleni dams, in the Eastern Cape. The Ntabelanga dam, which would store about 490-million cubic meters of water, would...
Phase two of the Lesotho Highlands Water Project (LHWP) should supply South Africa with water by 2022, said Lesotho Highlands Development Authority (LHDA) divisional manager Tente Tente on Monday. A 2009 feasiblity study said the water would be available in 2020.
This publication contains insight into progress at the delayed Medupi and Kusile coal-fired projects, in Mpumalanga and Limpopo respectively, as well as at the Ingula pumped-storage scheme, which is under construction on the border between the Free State and...
More
 
 
Latest News
Majuba
Regulations governing the application for and awarding of prospecting rights and mining rights for underground coal gasification (UCG) in South Africa have been included in the Mineral and Petroleum Resources Development Act (MPRDA) Amendment Bill, accelerating the...
While trade activity remained in positive territory during March it was still restrained, found the South African Chamber of Commerce and Industry’s (Sacci’s) Trade Conditions Survey, released on Tuesday. Sacci’s trade activity index (TAI) for March, at a level...
JSE-listed integrated information and communications technology systems provider Datacentrix on Tuesday posted double-digit growth for the year ended February. CEO Ahmed Mahomed explained in a statement that a continued focus on intelligent, higher-value solutions...
More
 
 
Recent Research Reports
Steel 2014: A review of South Africa's steel sector (PDF Report)
Creamer Media’s Steel 2014 report provides an overview of the global steel industry and particularly of South Africa’s steel sector over the past year, including details of production and consumption, as well as the country's primary carbon steel and stainless...
Projects in Progress 2014 - First Edition (PDF Report)
This publication contains insight into progress at the delayed Medupi and Kusile coal-fired projects, in Mpumalanga and Limpopo respectively, as well as at the Ingula pumped-storage scheme, which is under construction on the border between the Free State and...
Automotive 2014: A review of South Africa's automotive sector (PDF Report)
The report provides insight into the business environment, the key participants in the sector, local construction demand, geographic diversification, competition within the sector, corporate activity, skills, safety, environmental considerations and the challenges...
Construction 2014: A review of South Africa's construction sector (PDF Report)
Construction data released during 2013 hints at a halt to the decline in the industry during the last few years, with some commentators averring that the industry could be poised for recovery. However, others have urged caution, noting that the prospects for a...
Electricity 2014: A Review of South Africa's Electricity Sector (PDF Report)
This report provides an overview of the state of electricity generation and transmission in South Africa and examines electricity planning, investment in generation capacity, electricity tariffs, the role of independent power producers and demand-focused initiatives,...
Defence 2013: A review of South Africa's defence industry (PDF Report)
Creamer Media’s 2013 Defence Report examines South Africa’s defence industry, with particular focus on the key players in the sector, the innovations that have come out of the defence sector, local and export demand, South Africa’s controversial...
 
 
 
 
 
This Week's Magazine
South African antenna designer and producer Poynting and provider of professional products, system integration and implementation and commissioning services for the broadcast and telecommunications markets in South Africa, African Union Communications (Aucom),...
Industrial automation giant Festo has been displaying some of the its ongoing research projects and latest automation developments and products at the Hannover industrial fair from April 7 to 11, as part of its Integrated Automation – The Next Steps theme. The...
South African retail companies are responding to the way in which e-commerce is changing their engagement model with customers by improving customer engagement channels and order fulfilment intelligence, says industrial and retail software company JDA Europe, Middle...
In support of the South African government’s mandate to create more jobs and promote sustainable development, multilevel marketing company Amway’ business model aims to assist government in easing the startup of business and encourage an entrepreneurial mindset...
The global energy outlook is that energy demand will double by 2050 and the world’s population will grow to nine-billion, creating a need for increased energy supply with reduced carbon dioxide (CO2) emissions.
 
 
 
 
 
 
 
 
 
Alert Close
Embed Code Close
content
Research Reports Close
Research Reports are a product of the
Research Channel Africa. Reports can be bought individually or you can gain full access to all reports as part of a Research Channel Africa subscription.
Find Out More Buy Report
 
 
Close
Engineering News
Completely Re-Engineered
Experience it now. Click here
*website to launch in a few weeks