Technology Description: Professor Cohen and colleagues have developed a graywater treatment system to recycle water that presents a number of advantages over currently available systems. It allows water to be re-circulated continuously at a higher flow rate than current systems without flooding while still providing an aerobic environment in the “soil” layer. Several novel components including the vegetation support and plumbing are designed to be easily removed facilitating ease of maintenance and repair. In addition a number of features prevents clogging in the system.

Technology Overview: Adsorbents for removing contaminants typically include activated carbon metal oxides like titania (TiO2) iron oxide etc. The present technology provides an environmentally friendly method in preparing alternative group of metal oxides as effective adsorbents for heavy metal contaminants. A binary and ternary metal oxide has been tested to effectively adsorb/remove aqueous contaminants like arsenic (As) lead (Pb) and copper (Cu). Such adsorbent(s) can be conveniently used as fine particles with filtration or can be loaded on porous carriers and used in column.

Technology Description: Water scarcity is an important issue worldwide especially in arid regions. Industries such as automotive battery factoring mining textile generate wastewater containing heavy metals. Heavy metals may accumulate in certain organs in human body resulting in diseases to death. Thus heavy metal pollution has drawn increasing attention throughout the world. Reverse osmosis (RO) and nanofiltration (NF) are commonly used membrane processes in heavy metal removal but they are generally in spiral wound/flat sheet configurations.

pH2O designs builds and operates a full scale combined unit for washing landfill disposal trucks after they dump the waste and before leaving the landfill which is a becoming a global environmental regulation. The unit purifies and recycles the washing water while eliminating odour with no added chemicals and with zero discharge. All products incorporate electrochemically based technology without the need to add chemicals for any of the process while achieving total control and maintenance of water pH.

Technology Description: Professor Cohen and colleagues have developed a method and system to continuously sustainably and inexpensively desalinate high salinity water of high mineral scaling propensity. The system is able to process waters as contaminated as industrial agricultural and mining wastewaters with recovery levels reach in excess of 90-95%.

Lamp fouling is a significant problem among conventional ultraviolet (UV) technologies due to the risk of contamination by clogging. In addition energy requirements in conventional systems increase in order for high intensity lamps to compensate for the reduction in penetration depth due to clogging. A researcher at the University of California Davis has developed a novel system for UV treatment of water and wastewater. The design is such that the flow and resident time allows for the elimination of contaminants from treated water.

Background: Reverse osmosis (RO) membrane technology has been widely applied in the wastewater recovery processes either via conventional process or membrane bioreactor (MBR) process. However currently only 75~85% clean product water can be achieved by utilizing RO membrane for wastewater recovery. The remaining 15~25% RO concentrate is brackish waste which is harmful to the environment due to high organic content and has to be disposed. Technology Description:This technology relates to an improved titanium dioxide photocatalysts for degradation of organic substances in wastewater.

Background: Development of stable electroactive units for electricity generation or production of fuels and chemicals is essential as the development of environmentally and economically sustainable energy sources using solar energy is an important unmet challenge. Although there exist increasingly efficient and decreasingly costly semiconductors used in photovoltaic applications (e.g. Si Cu2S CdSe CdTe SnS etc.) a major challenge is stabilizing these high-efficiency materials against photocorrosion when operating in the electrochemical environment of a PEC cell.

Polymer Institute in cooperation with Water Research Institute of the Slovak Academy of Sciences have developed a highly effective composite sorbent for the removal of contaminants from water. This includes heavy metals such as As Sb Cr Cd Pb and others. The composite sorbent can be also used in wastewater treatment including wastewater from chemical and electronic industry. Contamination of water is a global problem. The presence of certain substances in water can threaten the health of the population.

The Bio- Robi wastewater solution has its principal application for individual residences to replace the conventional septic systems with a much better and more environmentally friendly wastewater treatment system. It is very cost competitive with conventional septic systems which face regulatory restrictions. The wastewater solution of Bio- Disk unit is designed for multiple residential clusters of individual homes in a subdivision apartment complexes condominiums and commercial applications such as hotels shopping malls convenience and entertainment/recreation centers.