Overview
pH2O technologies are all electrochemically driven and harness the phenomena of splitting water to treat water and industrial wastewater.
By applying a computerized controlled direct current to designated electrodes we eliminate the need to add chemicals in a cost and maintenance effective way at an average consumption of 0.5 Kw/m3.
Our profound understanding of the technology, and ability to fine-tune it, results in a line of products that cater to our clients' needs and challenges. Each device is a stand alone that can easily be connected to existing water treatment devices yet when connected to each other give a synergetic and comprehensive solution.
The pH2O Technologies
Electroflotation
The core technology of the EFS (Electro Floto Sludge) is based on the in-situ generation of 5µ microbubbles when a direct current is applied to the non-soluble electrodes. These electrodes are the heart of the device while the sophisticated electronic control is the brain. pH2O has optimized the control and the novel composition of the electrode to minimize the H2 and O2 nanobubbles in order to maximize their efficiency (view lab results)
The O2 generated at the anode and the H2 generated at the cathode are dispersed into the wastewater flow quickly creating an effective contact between the nanobubbles and the contaminated particles while the dense screen enhances the flotation efficiency.
Simultaneously with the electroflotation, electrocoagulation and electrochemical oxidation and adsorption accure and depending on the composition of the influent the EFS can at times be sufficient as a standalone to produce clear odorless purified water.
If the concentration of contaminants is high the pHC or EC are added to the process offering a synergetic and comprehensive solution.
Compared with conventional flotation, electroflotation has many advantages: it is characterized by a fast rate of removal pollutant particles, it is able to achieve simultaneous flotation and coagulation, with less sludge produced and the electroflotation equipment is very compact and thus suitable for installation where the available space is rather limited. Furthermore, the convenience of dosing control only by adjusting the current makes automation a quite easy operation and offers simplicity and low capital and operating costs.
The EC (Electro Coagulator) offers an alternative to the use of metal salts or polymers for breaking stable emulsions and suspensions. Added chemicals tend to generate large volumes of sludge with high bound water content that can be slow to filter and difficult to dewater. These treatment processes also tend to increase the TDS (Total Disolved Solids) content of the effluent, making it unacceptable for reuse within industrial applications.
The EC technology removes metals, colloidal solids and particles and soluble inorganic pollutants from the wastewater by introducing highly charged Al or Fe hydroxide.
These species neutralize the electrostatic charges on suspended solids and oil droplets to facilitate coagulation and resultant separation from the aqueous phase. The extremely simple design of the EC houses pairs of electrodes and when a direct current is applied to the consumable metal plates, usually Al or Fe, ions are continuously generated in the water.
The metal ions generate a bleaching effect by binding themselves to chlorines resulting in clear and odorless effluent and the increase in oxygen ions create an osmotic pressure that raptures bacteria, cysts and viruses.
Although the EC mechanism resembles chemical coagulation in that the cationic species are responsible for the neutralization of surface charges, the characteristics of the electrocoagulated flock differ dramatically from those generated by chemical coagulation.
An electrocoagulated flock tends to contain less bound water, is more shear resistant and is more readily removed.