Ozone alarm in use, audible and visual

Remote Audible Alarm Panel (RAP-1) is Activated by OS-6 Monitor Relay when Ozone is above 0.1 PPM

RAP-1 Audible and Visual Alarm Activates when Ozone Levels are above 0.1 PPM

In this video the RAP-1, which is a remote audible / visual alarm, is wired to the safety relay switch in the OS-6 Ozone Monitor, which is set to trigger above a 0.1 ppm ozone level. According to OSHA, the exposure limit for workers is 0.1 ppm for 8 hours per day. This relay is permanently programmed to always activate above 0.1 ppm ozone levels.

The decibel levels on the RAP-1 range from 92-103 dBA. The volume can be adjusted by turning the little black dial on the RAP-1 (shown in the video). The RAP-1 light and audible alarm are activated the entire time the OS-6 reads above 0.1 ppm ozone. As the ozone levels drop, the readings drop and result in the flashing light and audible alarm stopping after the reading goes below 0.1 ppm ozone.

Both devices can be purchased through our website. Each product is linked to below:

The RAP-1 Remote Audible Alarm Panel can be purchased here:
https://www.oxidationtech.com/rap-1.html

The OS-6 Ozone Monitor can be purchased here:
https://www.oxidationtech.com/products/ozone-monitors/fixed-ozone-monitor/os6-ozone-monitor.html



Ozone used for water reclamation

Recently we installed an ISX-Series ozone system for a water reclamation project. Below are a few images of this install.

Water reclamation with ozone
Ozone used for water reclamation
ISX ozone system for water re-use
Water re-use using ozone water treatment

This is a factory water reclamation project, water follows the following path:

  • Water collection tank, holding tank
  • Chemical water treatment for coagulation – solids removed from tank
  • Water filtration – screen filter
  • Ozone water treatment
  • Filtration – bag filter
  • Holding tank, ozone bubbled in this tank
  • Sand filtration
  • Water holding tank, ozone bubbled in this tank to keep bacteria from growing
  • Water used in toilets and cleaning in the factory

The ISX-series ozone system is used in this project. This specific system was designed to produce 250 g/hr ozone and treat a water flow rate of 30 GPM passing through the ozone system.

ISX-Series ozone water system

Have an application where ozone may allow you to re-use water, or treat water for safe discharge? Give us a call, we would be glad to help.

Ozone use in the cannabis industry

As the cannabis industry grows in the USA the interest in the use of ozone in this industry grows. There are many applications and potential uses for ozone in the cannabis industry, both in the growing and processing of cannabis. However, there are also many myths and potential misunderstandings on the use of ozone in this industry. This article will serve as a general guide to help understand the practical uses of ozone in this industry.

Irrigation water treatment:

Cannabis can be grown in many ways, in each, whether indoor, outdoor, hydroponic, or other, all require irrigation water for growing the plants. This water must be clean, pure and free of pathogenic bacteria for efficient plant growth. Ozone can be used to treat general well water for removal of harmful minerals and bacteria. See link HERE for additional details on these applications. Ozone can also be used to treat other incoming water sources that may have harmful pathogens, or generally low dissolved oxygen levels due to organics in water.

Ozone is commonly used to treat well water, and city water sources for many water treatment issues. The use of ozone in water treatment is common, and is one of the oldest and most frequent uses for ozone in the world. Using the same systems and processes that would be used in other agriculture applications, or drinking water applications is applicable in the cannabis industry with no major changes to the systems or technologies.

As ozone is more soluble into water than oxygen, and ozone will revert to oxygen naturally in water, adding ozone to your water will naturally increase dissolved oxygen levels in that water. Increased dissolved oxygen levels in water are always beneficial for irrigation systems.

Surface sanitation:

Ozone can be dissolved into water to be used for surface sanitation in rooms, equipment, and even plants if required. Ozone gas is produced, dissolved into water at high levels and used as a sanitizer. Ozone increases the ORP (oxidation-reduction potential) in the water to a level that if any of the water comes into contact with pathogens on the surface being treated.

This same application with ozone is common in the food processing industry. Many studies have been done on the use of ozone in these applications for food processing, and there are many ozone system currently in use for these applications. The same systems and processes used in the food processing industry can also be used in the horticulture and further processing of the cannabis plant.

We have provided ozone systems for surface sanitation applications by themselves. We have also supplied ozone systems capable of treating both incoming irrigation water and providing the higher dissolved ozone levels necessary for surface sanitation in one package with one ozone generation system, but 2 separate ozone mixing systems to dissolve ozone in water in two separate water streams and control individually.

Ozone in water for surface sanitation is safe, there are no harmful side-effects to humans or plants from ozone in water. However, if done incorrectly ozone in water can be off-gassed from water and enter the gas phase. Ozone in the gas phase can be harmful to both humans and plants. In this application ensure ozone is implemented and operated properly.

Odor Control:

Likely the oldest and traditionally the most common use of ozone in the cannabis growing industry, is odor control. Ozone is extremely effective at reducing organic odors and is used in many applications for odor reduction/elimination. During the growing, cultivation, and processing of the cannibis plant odors are created that can be potentially offensive. In applications where neighbors are close by or there may be aversions to any fugitive odors ozone can be used in the air exhaust of the building to eliminate odors effectively.

Cannibis Disinfection:

The final harvested product must meet specific mold, and bacteria standards to be sold to the end-user for consumption. There are state standards and good manufacturing processes to adhere to on mold and bacteria counts on final products. Ozone can be used to provide disinfection for this final product to met the most stringent mold and bacteria standards in your state.

Room Disinfection:

Ozone gas can be used in rooms to inactivate pathogens. Ozone gas can be used after aqueous ozone is used for surface sanitation to ensure all pathogens in the room are destroyed before starting a new crop, or between processing batches of harvested product. The room must be empty of plants and people, ozone gas can be pumped into the room at levels that would be harmful to plant, people and all pathogens. Ozone monitors can be used to control ozone levels and ensure the room is safe for re-entry when complete.

Exampe of an ozone system:

Below is an image of an ozone system that can be used for both water treatment and surface sanitation applications in one package.

This system has a larger 30 gallon contact tank to treat high water flow-rates of incoming water with low ozone dosages for disinfection purposes. The 30-gallon tank will provide sufficient contact time with ozone to achieve disinfection with ozone. An ORP meter is used to measure and control ozone levels in water.

The smaller ozone mixing tank will provide lower water flow rates with a high dissolved ozone level (>2.0 ppm) to be used for surface sanitation applications. A dissolved ozone meter is used to measure and control ozone levels in water real-time.

Custom OST ozone system with 2 separate ozone injection loopshttps://www.oxidationtech.com/products/ozone-water-system/ost.html#1025=

Below is an image of an ozone injection system that will dissolve ozone into water, but also includes ozone gas outlets to be used for room disinfection, odor control, or other ozone gas applications. An HMI touchscreen panel offers control of the ozone outputs via timers, and ozone monitors measuring ozone levels in each location.

OST-series ozone system with ozone gas valve options

Below is a diagram of how an ozone system can be configured for many various applications in the cannabis industry in one single package.

Ozone is produced via oxygen under pressure. This ozone gas is controlled and can be sent to various rooms with ozone monitors in each room. These ozone monitors will control ozone levels to proper levels for the specific application.

Ozone gas can be delivered to the venturi injector that is a part of the ozone mixing tank. This ozone in water can be plumbed directly to a point of use with a high level of ozone for sanitation applications. OR, can pass through a UV light that will safely revert all ozone back to oxygen prior to using in an irrigation system where ozone in water may be undesirable.

This system also shows an ozone destruct unit for ozone off-gas. This off-gassed ozone is reverted safely back to oxygen. This oxygen can be bubbled into an irrigation system to increase dissolved oxygen levels slightly.

As you can see, there are a wide variety of potential uses of ozone in the cannabis industry. Due to this wide variety, there is some misinformation and some myths about the use of ozone. If you would like to learn how ozone could benefit your facility, please contact our application engineers. We would be glad to help.

How to measure ozone in water

The K-7404 ozone test kit is a quick, easy, and reliable method to measure dissolved ozone levels in water. This is a manual coloremetric test kit that will measure ozone in water directly up to 3.0 ppm.

K-7404 ozone test kit

The K-7404 Dissolved Ozone Test Kit allows you to test for dissolved ozone levels in the range of 0.05 ppm – 3.0 ppm. Included in the kit are 30 test ampoules, which are used up and are replaceable. There is also a cylinder of activator solution included, which causes a chemical reaction during the test. This solution is also used up and can be replaced. The permanent parts of the kit are the box itself, the 25 mL test cup, and the two-color comparators. The lower level color comparator has a range of 0.05 ppm dissolved ozone and goes up to 0.6 ppm dissolved ozone. The higher range color comparator starts where the other one left off, going from 0.6 ppm to 3.0 ppm dissolved ozone.

To take the test, first make sure all the items you need for the test are laid out. This is important because once you take your sample of dissolved ozone, you need to proceed through the test steps quickly to ensure the dissolved ozone doesn’t break down. If you take too long between taking the sample and testing the level of dissolved ozone, you will get an inaccurate reading showing lower levels of dissolved ozone than what truly exists.

Add five drops of activator solution to the empty sample cup. Then add 25 mL of dissolved ozone to the sample cup. Quickly place the tip of the ampoule in the cup, swirl it several times, and snap off the end of the vial at the bottom of the cup. The vial will instantly fill with the sample, because the vial is vacuum sealed. Move the vial back and forth several times so the bubble moves up and down the tube, thoroughly mixing the sample. Wait 1 minute. Compare the color of the test ampoule to the varying levels of pink-colored tubes in the color comparators. The darker the pink, the higher the levels of dissolved ozone. Purchase K-7404 Dissolved Ozone Test Kit

Purchase Replacement Ampoules here

Custom Ozone Injection Systems

Oxidation Technologies builds a wide variety of ozone injection systems. However, we also customize our wide range of systems with standard optional equipment we offer on any one of our systems. Below are a few examples of custom systems we have provided recently.

OST-40 Ozone Injection System with options:

  • Dissolved ozone meter 0-10 PPM
  • ORP monitor
  • Water flow switch – turn system ON/OFF based on water flow
  • Ozone off-gas scrubber
  • High ambient temp alarm
  • Internal air compressor
OST-40 Ozone Injection Ssytem

Ozone levels in water can be controlled with either the Dissolved ozone meter, or the ORP meter, or both. The ozone generator will turn OFF when high limit ozone in water, or ORP limits are reached.

An internal air compressor is used to provide compressed air to the system, only electrical power is required for this system. Due to the internal compressor and potential environment, the high temp alarm was also added.

OST-20 with Ozone gas control options:

  • Dissolved ozone meter 0-10 ppm
  • Ozone gas output valves x10
  • HMI touchscreen for ozone level and timer controls
Ozone injection system
OST-20 Ozone Injection System with ozone gas options

This system features ten ozone output valves to distribute ozone to 10 separate cold storage rooms. Ozone gas levels are measured and controlled with remote ozone meters, ozone levels are displayed on the HMI panel. Both controlled ambient ozone levels, and timers are controlled on the HMI panel. This data can all be viewed remotely from any location via an internet connection.

OST-30 Ozone System with two injection systems:

  • Second ozone injection loop for 2 water streams
  • Larger 30-gallon ozone contact tank for water disinfection
  • Dissolved ozone meter 0-10 ppm for surface sanitation loop
  • ORP meter for water disinfection loop
  • CDU-30 ozone scrubber
  • High ambient temp alarm

One ozone injection system with two separate injection loops.

Injection loop #1 features a 30 gallon ozone contact tank and an ORP monitor for water disinfection. An ORP level of 800 or higher is maintained in this tank to provide disinfection in up to 30 GPM of water.

Injection loop #2 features a standard ozone mixing tank with a high range dissolved ozone meter to provide up to 20 GPM of water with ozone levels of 2.0 – 3.0 for surface sanitation applications.

Additional features of this system include a CDU-30 ozone scrubber for ozone off-gas and a high-temperature alarm. A UV-light system was also provided with this system to be used with the water disinfection ozone injection loop. This removes ozone from water and provides disinfected water with no ozone residual for a sensitive downstream process.

OST-60 Ozone System with 50 gallon ozone contat tank:

  • 50-gallon ozone contact tank
  • Dissolved ozone meter 0-10 ppm
  • Oxygen purity meter
  • Water flow switch

This system features a 50 gallon ozone contact tank to provide additional contact time with ozone and water. A dissolved ozone meter verifies dissolved ozone levels and offers control. The system can be turned ON/OFF with a water flow switch.

An oxygen purity meter is built into this system. This meter provides a digital reading of actual oxygen purity inside the cabinet. A low O2 purity indicator is provided on the enclosure as an alarm.

OST-100 Ozone System options:

  • 50 gallon ozone contact tank
  • Low-range dissolved ozone meter
  • ORP monitor
  • Sanitary ozone transfer pump with VFD and power disconnect
  • Water flow meter
  • HMI touchscreen for automated system operation

This custom system was built to specific requirements by this customer. A 50 gallon ozone contact tank was provided on the system. A large ozone transfer pump with a sanitary impeller was provided with a VFD to achieve a specific water flow-rate through the system. This water flow rate was measured with the water flow meter. Dissolved ozone and ORP are measured and controlled on this system based on water flow-rate and customers’ needs. All this control and set-up is performed with the touchscreen HMI panel built onto this system.