Efficient biodegradation of highly concentrated polychlorinated biphenyls (PCBs) and dioxin which contaminate water and soil. Patent registered at Korea (6.2006) and PCT International Publication for Patent (WIPO, 10.2005)

 

-Bioremediation of polychlorinated biphenyls (PCBs) and dioxin which contaminate soil and water.

-Facultative aero-bacteria isolated from natural environment

1. Applied Field of Industrial and Applied Businesses
  (Applicable Business):

Restoration of environment polluted by waste (especially transformer insulating oil), ocean, river, air and wasted water, sediment and soil that polluted by PCBs (Polychlorinated biphenyls)

2. Present treatment methods and problems

Treated by bury in the ground or thickens PCBs and keep it like radioactive waste plant (Japan), washing or burning.

3. Principal functions and expectable effects.

1) Biodegradation many kinds (100~200 types) of dioxin and PCBs that polluted
   soil.Excellent successful instance internationally

2) Expectable efficiency of 90~99%

4. Comparison with other product

It’s been detected from clams, fish and shell-fish, meat, soul and insulating oil etc..

Hudson River’s case of U.S.A, there is no prior instance of Bioremediation by microorganism so, they are planning methods using washing etc.

5. Actual results and applied instance: Registered at Patent details

Tested Item

Data before Treatment

Data after Treatment

Environment Standard

Remark

PCBs

1,000ppm

ND

Korea “B” area 12mg/kg

Industrial lot, road, mixed lot

Germany. Applicable sensitive level land 1mg/kg

 

Dioxin

2,500ng/kg
About 2,500ng/kg

ND ~ 85ng/kg
(2.3.7.8-TCDD:
not detected)

Germany. U.S.A: residential section 1,000

Sweden. Residential section 10

Industrial, road, business 250


Unit: pg-teq/g

Numbers total of whole concentration of principal dioxin

1) Sweden and Cyprus soil (SUEZ group)

PCBs has been confirmed by SUEZ-SITA after analysis by Dail Biotech’s research lab. Dioxin is analysis data from Sweden.

Tested Item

Data before Treatment

Data after Treatment

Environment Standard

Remark

PCBs

1,000ppm

Dissolve insulating oil also.

Korea “B” area 12

Industrial lot, road, mixed lot

  Germany Applicable sensitive level land 1

 

2) Transformer insulating oil (low density PCBs insulation oil + Aroclor1242 added)   Unit: mg/kg

6. Treatment Method

When it is adhered to soil, spray the product. It is different by density of pollution or condition but, normally it requires about 4 months of before and after treatment period.

Methods for separating PCBs from transformers insulation oil is in developing. PCBs treatments are possible as mentioned above, so as long as process of extracting and separating PCBs from insulating oil is completed, lnsulating oil is reusable by recycling of transformer.