Dubai: Thirty small-scale solar-powered desalination plants will be operational in the next 15 months to provide animals with watering holes in Abu Dhabi’s desert environment.

Two of the plants are already in use desalting brackish water from underground aquifers into fresh potable water, said a water resources expert from the Environment Agency — Abu Dhabi (EAD).

However the cost of using solar power for bigger desalination plants that produce millions of litres of fresh water for mass human consumption is still too high, said Dr Mohammad Dawoud, Manager of Water Resources Department at EAD.

Currently the cost of one desert desalination plant is Dh3 million.

Each plant will be of identical size with the same desalination capacity of five cubic metres of water per hour. The plants will be operated remotely and solar power will be harnessed by solar panels spanning 300 square metres at each site — enough to create 45 kilowatts of electricity per hour.

“The purpose of the plants is to establish a water source for the thousands of animals in the middle of the desert where there is no power. There will be no impact on the environment and the operating cost for the next 15 years is lower than transporting oil to use to create energy,” said Dawoud.

The plants will be working six to eight hours everyday. Brine, or waste water, will be pumped to an evaporation lake measuring between 30 to 40 metres in diameter and fenced off to keep animals at bay. It will also be sealed underground to avoid any leaks into to the ground water.

“Very little salt will actually be produced. Around three cubic metres of water will be discharged per hour into the evaporation lake. From time to time it will have to be maintained and the salt removed and disposed of in a landfill,” said Dawoud.

A subsurface irrigation system will pump some of the freshwater water back underground in order to create irrigated land to grow fodder for the animals.

According to the International Desalination Association, the daily production of desalinated water in the UAE is 8.4 million cubic metres. It was announced last year that future desalination production investments by Abu Dhabi and Dubai were pegged at up to $40 billion (Dh146.8 billion) to meet increasing water demand.

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Ever since the Waste Strategy Unit’s last report, “Waste not, want not” was made public on twenty-seven Nov 2002, the United Kingdom has been accelerating recycling rates and pushing at really serious targets which will significantly cut back the tonnages of waste to dump. Landfills which were filling at an ever increasing rate were threatening to cover the land and rise above it, finally filling every quarry and patch of waste land in our built up areas and then devouring huge acreages of farmland as well.

Over the same period public willingness to recycle in their homes has risen inspired by separate waste collections which have progressively been introduced by local authorities and which have extended the quantity and range of source separated and comingled Municipal Solid Waste diverted away from landfill.

For some time costs of engineered landfills have been rising and rules have been getting tighter.

In the background, the Environment Agency has in addition been raising the green regulation standards obligatory to of the landfill operators which has at the same time raised their expenditure which have been transferred never-endingly to the landfill users.

Over the identical period community enthusiasm to recycle in their homes has also risen encouraged by separate waste collections which have progressively been introduced in local authorities as well as which have expanded the number and breadth of source separated and co-mingled Municipal Solid Waste diverted away from landfill.

At some point it was all about to make both environmental AND commercial sense to recycle, but many worried whether the industry ever quite get there before the political will to do so was lost.

For a long while the industry pundits have talked of the necessity to reach a unproven “tipping point” at which as the dump tax elevator rises, and the mixture of lots of other smaller regulatory effects come together, and how they are going to push the cost of landfilling above the cost of recycling. The rate of landfill tax for rubbish heap active waste has increased by £8/tonne per annum from 1st April 2008 and will continue to increase by £8/tonne on 1st April each year year to 2013.

The UK presidency financed WRAP organisation which researches and promotes recycling waste diversion has made public rates for current waste treatment technologies generally in the range of £45 to £65/tonne, so it would appear that UK landfill charges are now just reaching the tipping point.

That all this was eventually adding up to profitable cost competitive recycling is being confirmed by the number 1 waste recycling corporations in the commercial and economic waste sector.

All this adds up to a family run business like Bywaters, with its friendly and eager workers at plants like the Recycling and Recovery Facility at Bow, and for so long devoted to sustainable business, to now also reap the industrial benefits they deserve for themselves and their clients.

As I found in a recent trip to the Bywaters Bow Recycling Plant, staff work extremely closely with the waste producing companies from which they accept their waste, such that quite soon after even the least “environmentally aware” organisations come aboard, they are able to up their game and massively improve the purity of their client’s source segregation systems within just a few short months

This is a win-win situation because not only is the residual waste quantity reduced for the customer, but the value of the purer recycled (source segregated) material reduces the processing cost at the Bywaters’ faciility.

These recycling corporations are now well placed to resume to raise recycling rates as a percentage of total waste produced, gratifying public demand, and to work in partnership with their clients to further invest in making improvements to the potency of the their recycling processes. These enhancements also helped by their clients will continue to push down costs, and are already providing higher quality recycled raw materials, of a consistency, quantity, and quality which could never have been imagined just seven years ago when “Waste not, want not” was published.

The future will see reliable and “main stream” bulk availability of quality controlled recycled products.

The positive feedback which will result will further stabilize and raise the markets in recycled commodities and the volatility in these markets will in turn moderate to become unremarkable.

So, for any companies that are still not recycling their waste we say:

“Be “green” and recycle – it just makes sense like never before.”.

Click on the link text later in this sentence for more articles and information about Bywaters recycling and how to recycle.

Your web master is waste management professional. He has been online since 1996 and in that perod has developed an enviable level of expertise in marketing which he uses across a very wide range of articles.He has three children and lives in the West Midlands region of the United Kingdom. He enjoys folk music and attends many music festivals, although these days he prefers to sleep in comfort each night.
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