Despite inroads from cross-flow membrane technology, granular media filtration remains popular. Purchases of granular media filters will exceed $1.6 billion in 2014. They will constitute 25 percent of the $6.5 billion liquid macrofiltration market.  This is the latest forecast in Liquid Filtration and Media World Market.  (www.mcilvainecompany.com)

Microfiltration with cross-flow membranes is carving out market share. On the other hand, the total market is growing due to the need for wastewater reuse. One recent example is in Saudi Arabia.

As part of Saudi Arabia's continuing campaign to conserve water through reclamation and treatment, the Dhahran Utilities Department celebrated the completion of the Advanced Wastewater Treatment Plant (AWTP) expansion project.  AWTP, located north of Dhahran, was expanded from 3 mgd to 10 mgd to accommodate growing demand.  Twenty-four DynaSand filters supplied by Nordic Water Products were installed to provide tertiary treatment.  Treated wastewater is used for irrigation.

The smaller Automatic Back Wash (ABW) filter market is growing faster than the granular media filter market.  The reason is that these ABW filters are taking market share in the very large cartridge market. The ABW filters are self-cleaning.  The continuous replacement of cartridges is costly and time consuming.

Belt filter presses continue to be the choice of smaller municipal wastewater treatment plants around the world.  The other option is a centrifuge.  The centrifuges are preferred by the larger plants due to their capability of processing large quantities of sludge in a single unit.

Bag filters are disposable as are cartridges but they can handle substantial quantities of contaminants before replacement is needed.

Drum filters remain popular in the mining industry. Filter presses are widely used in the chemical industry. 

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The multibillion dollar market for remediation of groundwater and soil will continue to grow. Fueling this growth is a reduction in available water per capita. This is the prediction of the McIlvaine Company in its Site Remediation and Emergency Response Newsletter.  (www.mcilvainecompany.com)

By the year 2030, the world population will rise to 8.3 billion from 7.1 billion today.  Demand for water will increase 40 percent between 2011 and 2030.  The population across the globe will need 6,900 billion cubic meters (BCM) of water in 2030. This total exceeds current sustainable water supplies by 40 percent. By 2030, the OECD estimates that nearly one-half of the world population will live in areas of severe water stress. 

The remediation of contaminated soil and water will assume even greater importance as the stress on resources grows. The biggest rate of growth will be in developing countries such as China. In countries where much has already been spent on remediation, the rate of growth will slow.

In the U.K. over the five years through 2017, site remediation industry revenue will continue to increase but at a lesser rate than in the previous five-year period, which benefited from the spike in activity devoted to preparing sites for the 2012 Olympic Games.  The outlook for the remediation industry is positive because housing and commercial developments across the U.K. will continue to need soil and groundwater remediation services. A greater number of abandoned industrial sites are being remediated in preparation for building construction. The scarcity of available land is a driver in much of Europe.

The U.S. remains a strong market for groundwater cleanup. It will cost between $110 billion and $127 billion to clean up the 126,000 sites that have contaminated groundwater.   Approximately 10 percent of the groundwater sites are considered complex. They will not be cleaned up in the next 50 to 100 years, because innovative technologies to treat them successfully to drinking water standards do not yet exist.  Many sites considered remediated and "closed" still have contamination requiring oversight.

China will be among the top markets over the next ten years. The country has lower rainfall per capita than the average country. Much of the water supply is contaminated. There is a dedication to cleanup but past investment has been meager.

Remediation will not be limited to sites which are already contaminated.  The Fukishima power plant catastrophe is an example of the continuing contamination.  Military activity in the last century has caused considerable contamination which has yet not been addressed. The conflicts in Africa and the Middle East   continue to add new contamination sites.

For more information on Site Remediation and Emergency Response Newsletter. 

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