OVERVIEW
In 2006, field tests conducted by the Israeli Ministry of Health (MOH) revealed abnormal values of Perchlorate and Ethylene Dibromide (EDB) in Green Village's primary groundwater source well, which quickly lead to the closing of the well. Using ToxSorb’s MAC technology to remove Perchlorate and Ethylene Dibromide from the well has allowed the village to reclaim this valuable drinking water source.
In August 2013, ToxSorb received approval from the Israel MOH to build and operate a full-scale drinking water treatment facility at Green Village. This approval was given following the positive results of ToxSorb’s pilot in Green Village in July 2011, which effectively removed both Perchlorate and EDB in concentrations 4 x higher than original system design. This system was fully implemented in Q1 2016.
This project at Green Village will represent the first treatment facility of its kind in Israel, truly a pioneering achievement. Restoration of contaminated wells provides an important contribution to the functioning water balance in Israel, and especially to the nearby population benefitting from clean water. ToxSorb's full-scale drinking water treatment facility is expected to purify 25,000,000 gal/year.
SYSTEM BENEFITS
ToxSorb’s pilot at Green Village demonstrated a consistent ability to remove perchlorate and EDB at concentrations 4 x higher than initially observed and designed for (~40ppb). ToxSorb's full-scale drinking water treatment facility is expected to purify 25,000,000 gal/year.
FULL-SCALE PLANNING
ToxSorb's full-scale treatment facility will be designed for the removal of perchlorate in concentrations <200 ppb and EDB in concentrations <0.3 ppb during normal operations. However, given the fact that contaminant concentrations around Green Village have been increasing steadily over the last decade, ToxSorb has designed its system with the capacity to handle an additional 50% increase in concentration.
In the event of increased pollutant concentrations, ToxSorb’s system can be adjusted to increase the frequency of regeneration, enabling the additional uptake of pollutants at the designed flow rate. While this intensified operational regime will consume more chemicals, it will not have an effect on the waste generation of the system, since the brine produced will still be rendered non-toxic through the ability of NP2TM to reduce ClO4- into non-toxic Cl - and O. This process advantage allows the brine stream to be recycled back to the head of the plant, eliminating the need for costly disposal. In 2015, in preparation for the design of the full- scale system, ToxSorb ran an additional pilot with the objective of identifying the breakthrough curve of the NP2TM media.
The results from ToxSorb’s internal analysis show the media’s ability to deliver consistent results below the Limit of Detection (4ppb), up to 5,000 Bed Volumes (BV). ToxSorb Continues to experiment with lower retention times in an effort to reduce the overall size and cost of the Full-scale system.
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