Ballast Treatment with Liquid Ozone

Ballast Treatment with JC 9450

Are you currently using chlorine, chlorine dioxide, gaseous ozone, peracetic acid, menadione/vitamin K (SeaKleen), Uv or a combination of these chemicals to disinfect your ballast water prior to discharge? Would you like a system that kills like ozone and generates water and oxygen molecules as by-products? If you have an ozone generator on-board would you like to minimize another shipboard hazard (pure oxygen, ozone gas scrubber and etc)?

Jenfitch has developed a new disinfectant as an alternative to chlorine, chlorine dioxide, gaseous ozone and Uv, JC 9450 Liquid Ozone. JC 9450 Liquid Ozone is a mineral oxy-chloride ion that reacts in water to generate reactive oxygen species (ROS) (ie. Peroxides, Singlet oxygen, superanion, and hydroxyl ions). ROS molecules react with any microorganisms killing them immediate. Bacteria, viruses, fungi and related biofilms do not develop a tolerance to ROS. JC 9450 is a broad based disinfectant/oxidant that is NSF approved for use in potable water treatment systems up to 100 mg/l. We use ORP to control our dosage and feed rate. In a study using ORP to measure disinfectant potential, the following data was collected:

ORP Level
CFU/100 ml
+200 mV
300
+300 mV
36
+400 mV
3
+600 mV
ND

Systems using chemical biocides need to be designed to avoid discharging unwanted concentrations of residual biocide. In addition another issue with systems using chemical biocides is the potential for the production of disinfection by products, such as trihalomethanes and halo-acetic acids. The disinfectant must meet G8 and G9 standards of verifying a method that translates the disinfection level.

Discharge limits for Ballast Water Discharge

Agency
Vibrio Cholera
E.coli
Intestinal Enterococci
IMO BW
<1 CFU/100 ml
250 CFU/100 ml
100 CFU/100 ml
US EPA
same
126 CFU/100 ml
<33CFU/100 ml

In a study conducted in California, using a fresh water sample taken from the Delta Bay (Northern California-Sacramento River), we found the microorganism levels (mpn/100 ml) were: 2500+ CFU/100 ml, and e.Coli was >4+. Using 10 mg/1 of JC 9450, we were able to reduce the microbiological count (mpn) to: ND/100 ml and non detect on e.Coli in less than 20 minutes of contact time. We also observed an overall improvement in the treatment system. Raw water turbidity was 5.0 NTU and in the settling zone before filtration (using JC 9450) the turbidity was 0.125 NTU. Before the plant trial, the average turbidity in the settled water was 1.3 NTU. The operator wanted to maintain a free chlorine residual of 0.8 mg/l to 1.2 mg/l. He found that on initial start up, the free chlorine residual dropped slightly because of the removal of the biofilm in the system but returned after several hours. The net results was an overall improved treatment program with non detect microorganism and a very low free chlorine residual in the ballast water.

If you would like more information about JC 9450 Liquid Ozone, please contact Jenfitch at 925-289-3559 or email: Charles@jenfitch.com.

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