EKOTON – JD-series Dehydrator
About the Company:
“Ekoton” Company was founded in 1995 by wastewater treatment engineers. The Company started its production activity from simple polymer products with just eight employees. In 1999 the Company had mastered manufacturing of its first mechanized equipment. From year to year EKOTON has increased its own production capacity and involved new professionals to grow their team. Today EKOTON Industrial Group includes three main production factories plus engineering centers, serving customers in more than 30 countries worldwide. EKOTON’s product range covers most wastewater treatment and sludge treatment processes. Their team is constantly developing the equipment they produce, offering innovative and reliable solutions to water industry professionals.
About the Solution:
The JD-Series Dehydrator system operates in continuous mode. Influent is pumped from the external process or storage tank into the process tank. A mixing system located in the process tank prevents stratification.
The influent is then pumped to the dosing tank, and then through a calibrated overflow to the flocculent tank. Excess influent from the dosing tank returns into the process tank through a control overflow union to allow for continuous steady flow.
A polymer solution is supplied into the flocculent tank and is mixed with the influent by means of a mixer to form floccules. Then the influent enters the JD-Series Dehydrator where a number of filtering rollers, each consisting of a stainless steel shaft and multiple thin discs, are placed in two rows - upper and lower. The rollers close to the inlet from the filtration section, whereas the rollers close to the outlet from the dehydration section.
As incoming flocculated material travels through the filtration section, only the filtrate passes through the slits between discs.
The solids, concentrated at the filtration section, form a cake and are then transferred to the dehydration section where it is further dewatered. This is achieved by the increased compression, as the rollers are aligned so that the gap between them become narrower as the cake advances.
Since the rollers rotate at a very low speed, the cake moves without being kneaded or exposed to unnecessary stress like other dehydrators.
One of the advantages of the JD-Series Dehydrator is that the wide throat allows larger and courser particles than most dewatering systems eliminating the need for course solids separation.
Solution Strengths, Weaknesses and Critical Indicators
Chemical flocculation technologies remove the non-dissolved particles from the waste stream typically resulting in irrigation quality “tea water”:
- Produces a clay like cake which is high in phosphorus and with significant amounts of organic nitrogen.
- Supported technologies include belt presses, centrifuges, dissolved air flotation systems and others; all requiring flocculants to achieve high rates of solids removal
- There is significant variation of chemical and energy use depending on site and by technology
- There is significant variation of operational intensity depending on site and by technology
- There is significant variation of cost depending on site and by technology
- Proven technology for nitrogen recovery, phosphorous recovery, storage reduction, GHG reduction, and odor control
Newtrient is currently working with EKOTON Industrial Group to evaluate this technology and to collect information on its use in the dairy industry. At this time there are no installations on dairies in North America. Once the systems is installed on a dairy it will be evaluated on the Newtrient 9-Point Scale.
1. OPERATIONAL HISTORY