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© 2016-2017 | Sundine Enterprises, Inc.

Process

SundineEnterprises, Inc.

Powell Water – The Electrocoagulation Process

Electrocoagulation (EC) is a process that has been in existence for decades with the first patent issued in 1906.  However, it has been only recently that the process has been fully commercialized as a result of technical advancements specific to overcoming the deficiencies of previous units.

 








30 gpm EC Power Supply and Chamber

Electrocoagulation (EC) will significantly reduce BOD, TSS, TKN, phosphate, silica, heavy metals, and other contaminants from aqueous solutions.  With the use of clean electricity, electrocoagulation efficiently removes a wide range of contaminants with a single system.  The EC makes constituents in the water “separable”.  Heavy metals are converted from ion forms to oxide forms, allowing them to be disposed in a non-hazardous landfill.  Because electrocoagulation utilizes methods that precipitate out large quantities of contaminants in one operation, the technology is the distinct economical and environmental choice for industrial, commercial and municipal waste treatment.  The capital and operating costs are usually significantly less than chemical coagulation. 

 









30 gpm EC Chamber with Metal Blades Prior to Wastewater Flow

Powell Water is the industry leader and the world’s largest supplier of industrial electrocoagulation (EC) systems has more than 150 installations worldwide.  The EC chamber consists of flat metal blades placed parallel to each other.  Untreated water is introduced into the bottom of the chamber and is dispersed evenly as it moves upward through the blades.  Direct current is applied to the first and last blade.  The liquid then becomes a conductor, allowing the current to pass freely throughout the chamber.  This results in a flood of electrons into the water, neutralizing charged particles, causing them to precipitate out of solution.  In addition, the metal blades react to the current by releasing charged metal ions that act similar to chemical coagulants.  The unit also contains an automated clean-in-place (CIP) system and an air purge system that fluidizes precipitates and reverses polarity in order to extend metal blade life and prevent contaminants from coating the blades.  No chemicals are required for the treatment process.  The acid solution used in the automated cleaning cycle is recycled and, when exhausted, is routed through the EC system for final disposal.  EC has become recognized as a very effective means for economically treating a wide variety of challenging water treatment applications and are available in sizes ranging from 1 gpm to multiples of 2,500 gpm.


 
 EC - Effective, Economical Wastewater Treatment

Applications:

Plating Wastewater
Potable Water
Arsenic
Radium
Fluoride
Produced Water
Scrubber Blow-down Water
Semi-conductor
Trace Contaminants
Zero Liquid Discharge
Municipal Wastewater
Phosphates
BOD
TSS
TKN
Industrial Wastewater
CAFO Wastewater
Cooling Water
High Recovery R.O.
Pharmaceuticals


 

OPEX Advantages

  • No Process Chemicals Required - The treatment process requires no chemicals.  The system is periodically cleaned with an acid solution that is recycled.


  • Minimal Operator Requirements – Even the largest systems can be operated with only 1 or 2 operators.  Operator training is straightforward.  The simple design ensures the system is very reliable and cannot be damaged by operator error or process upset.

  • Minimal Maintenance – Maintenance is limited to periodic replacement of the flat blade electrodes which consist of generic plate that can be purchased locally.

  • Low Operating Cost – Besides manpower, the only operating costs are power and periodic metal blade replacement.  Power consumption is typically 4 kwh/1,000 gallons, and metal blade consumption is about 0.20 lbs. /1,000 gallons treated.

  • Minimal Waste Disposal – Most contaminants are precipitated as oxides which render them non-hazardous and able to pass the TCLP test.  Since no additional chemicals are added, the waste volume is minimal and can typically be discharged into dumpsters for haul-off or non-hazardous landfill.

  • Treats Wide Range of Contaminants – Treats a wide range of items including suspended solids, colloidal solids, emulsions, fats, grease, bacteria, viruses, heavy metals, hardness, silica, boron, selenium, and organics.

  • High-temperature Water Processed – High-temperature water such as silica laden water from geothermal water or boiler blow down water can be treated and re-used.  EC chambers can be specified to withstand very hot water which allows for a continual and complete treatment process without the added expense of cooling the water as is needed before using membrane or ion exchange technologies.