Chlorine Dioxide

R&D company with unique environmental purification technology


Removal of Residual Pesticides

Korean Nutrition Food Sciience Vol 38 (5) pp 601(1999)

Removal of Residual Pesticides by NEOCL-ClO2

  • In conclusion, the result of this study is to remove residual pesticides from agricultural products such as lettuce,
  • it is shown that washing with chlorine dioxide is more desirable in terms of food stability.
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  • As a result of this study, chlorine dioxide treatment can be used as washing water to remove residual pesticides from fresh products

- Degradation Effect of Residual Pesticides by Chlorine Dioxide Treatment
(Song of Food Eng., Chung Nam National Univ.)

Sterilization in Agriculture Field

Chlorine dioxide has a wide range of control against crop diseases in agriculture.

Excellent control effect against viruses and bacteria, and selective control effect by mold type even for mold control

strain ClO2 concentration (dilution)
fungi Alternaria panax x200
Fusarium soleni x400
Botrytis cinerea x50
Colletorichum gleosporioides x800
Phytophthora cactorum x300
Rhizoctonia solani no spore
Pythium sp. x3000(zoosporangium)
Sclerotinia sclerotiorum no spore
Cylindrocarpon destructans no spore
bacteria Agrobacterium tumefaciens x2000
Pectobacterium carotovorum x500

Soil mildew suppression and disinfection

Excellent soil mildew suppression ability compared to chemical pesticides in soil irrigation It is very effective in controlling plant disease from soil before growing and growing crops.

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    Results of Treatment of Ginseng Soil in Hwaseong Area NEOCL ClO2 is better than sapphire pesticide It showed a higher inhibitory effect of 67%.
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    Treatment of ginseng soils in Icheon area with direct soil ginseng damaged soils. NEOCL ClO2 showed higher inhibitory effect than sapphire pesticides
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    Ginseng soils in the Eumseong area were treated with NEOCL ClO2 and showed a similar or higher inhibitory effect than sapphire pesticides..
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  • sample control sample1 sample2 sample3
    soil(g) 10 10 10 10
    sterilized saline(ml) 90 90 90 90
    ClO2(ml) 0 10 1 0.1

    Kyung Buk Univ.

Residual Pesticides Reduction

Globally, chemical pesticide reduction policies are being strengthened due to human toxicity and ecological toxicity, and agricultural pesticide contamination problems are emerging as a recent issue. Chlorine dioxide has the function of reducing residual pesticides, so it has a very high market prospect in the field of washing crops, soil and harvested agricultural products after cultivation.

  • NeoCLnextReducing residual Pesticides
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    It is the main component of pesticides and is classified as organophosphorus pesticides. It is a toxic substance that thermally decomposes to release chlorides / nitrogen oxides / cyclic compounds / phosphates.
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    It is the main component of pesticides and is classified as organophosphorus pesticides. It is mainly used for spider webs, aphids, mites, moths, and insects.
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    It is a major component of pesticides and is classified as a phenylamid pesticide. It is mainly used for late blight, fish, and bacteria.

Cucumber cultivation

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Eggs sterilization

Nationally recommends chlorine dioxide fumigation methods to solve the problem of pesticide treatment prohibition and egg disinfection methods.
(99.9% disinfection of AI infected eggs exposed to chlorine dioxide gas for 30 minutes)

  • Eggs sterilization
  • Eggs sterilization


Disinfection of shrimp white spot virus and yellow head virus confirmed virus death

  • shrimp,YHV,virus
  • shrimp,YHV,virus
Treatment with chlorine dioxide at low concentrations had no effect on salinity, pH, alkalinity, dissolved oxygen, and phytoplankton, and vibrio proved to be significantly reduced.

After using low chlorine dioxide, the white spot virus and the yellow head virus were eradicated when the effective concentration was maintained.
(white-spot virus (WSV))

Chlorine dioxide replacement for dry lavar and aquaculture sterilization (wastewater treatment)

Sodium hypochlorite and inorganic acids is currently used for the lavar farming and treatment of wastewater from processing, As they produce harmful by-products after sterilization, they will be replaced by chlorine dioxide, an eco-friendly oxygen disinfectant.

Familiarity of the reality that needs to be improved
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Environmental Impact Assessment of ClO2-Fish Toxicity

Intensive observation of fish after 4 test of chlorine dioxide :1st (low concentration / 10L), 2nd (high concentration / 10L), 3rd (high concentration / 10L), 4th (large concentration / 10L)

Even if the concentrated ClO2 aqueous solution was dispersed in an isolated lake, it was confirmed that there were enough livestocks , even though it was ClO2 aqueous solution.

Disinfection effect is shown even if high concentration is dropped due to its easy decomposition characteristics, and it is confirmed that no residue is generated (below 1 ppm), as it is completely decomposed within 4 to 5 minutes.

Report on fish toxicity in the Korea Environment Management Corporation Bird Reduction Pilot Project

  • small fish toxicity test

    (fish observation after 4th test)

    *site: Konjuam CC

Survival of Flounder Exposed to Chlorine Dioxide (ClO2) Treated Seawater

Survival after 24 hours of flounder exposed for 10 minutes below 0.27 ppm was 100%.

Source: Korean Journal of Aquaculture, Department of Aquatic Life Science, Yeosu University 'National Fisheries Research and Development Center

Survival Rate of Flounder Exposed to ClO2 Treated Seawater

  • "Once treated at various concentrations of ClO2 and exposed to flounder for 10 minutes. At the residual concentration of 0.27 ppm immediately after ClO2 treatment,

    Survival rate was 100%… . "

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Survival Test of Fish Using Chlorine Dioxide (ClO2)

Experiments using chlorine dioxide (ClO2) treated seawater showed that the flounder had a 100% survival rate at 0.2 to 0.3 ppm and relatively high survival rates for rockfish and eel at high concentrations.

Source: Namhae Coastal Farm, Korea Advanced Institute of Science and Technology

Survival Rate of Flounder Exposed tClO2 Treated Seawater

Fish survival rate
flounder 12cm 0.2ppm : 100%
13~20cm 0.25ppm : 100%
flat fish 18~23cm 0.30ppm : 100%
rockfish 20cm 5ppm : 100%
eel 40cm 2ppm : 100%
shrimp 3~5cm 2.8ppm : 100%

comparison of fish toxicity with NEOCL-ClO2

In the case of copper compound, which is the most commonly used flocculant for removing algae, the test results show that the toxicity of fish is considerably higher than chlorine dioxide.

comparison of fish toxicity NEOCL-ClO2 : copper

agent ppm survival 24hours 48hours 72hours 144hours 264hours
ClO2 0.5~1.0   - - - All All
5.0~10.0   - - - All 5.75/7
15.0   - - - 9/11 8/11
copper 0.16   All 2/7 None    
0.16~0.32   1/2 - None    
0.32~0.82   3/4 None      

ref ; Research on Algae Removal in the Misari Rowing river (Korean Journal of Limnology Vol.22(4), 309-319(1989))

Case of Chlorine Dioxide Application to Fishery

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  • Fishery
Total Volatile Nitrogen(TVN)
Most people don't know that the inherent smell of fish, shrimp, and other fish on the market is the product of these decaying processes.
One of the methods of measuring grade drop due to corruption or deterioration is the Total Volatile Nitrogen value (TVN).
Volatile nitrogen (TVN) is due to ammonia gas from the decomposition of proteins. Fresh fish and shrimp caught in the ocean or pond have TVN concentrations of 4-7.
As TVNs increase (due to the breakdown of fish and shrimp protein), the smell also increases.
In Europe, consumers generally require chemical treatments to achieve a TVN concentration of around 50.
If the TVN concentration is above 100, it is unsuitable for human consumption, so it can be used only for dog or cat food.
If you store your harvested fish or shrimp on ice containing chlorine dioxide, your TVN concentration will be around 17 and it will be almost odorless !!