Home > Product > Point pollution field
 
   
 
Large rings and small rings produced in double spiral forms keep a difference between internal and external biofacies to create suitable anaerobic/aerobic conditions to repress excessive attachment and/or sloughing of biofilms while keeping ideal contacts between liquid and gas, thereby improving the efficiency in bio reaction tank
 
OdoWatch System is the world first Automatic Real-Time Odor Watch System to automatically and consecutively measure complex odors that are only measured by human olfactory system. What is distinctive in this system is that it does not measure individual chemical substances but measures strength of complex odor, which is the interaction of multiple chemical substances that is sensed by human olfactory system
 

¨ç Electronic-nose: installed on site
¨è Weather Station: Monitor weather conditions in field
¨é Central Control Unit (CCU): collect, store, analyze, correct, display DATA from E-nose and  Weather Station

 
 
¨ç Measure consecutive complex odors from the air on a real-time base
   (not the measurement of concentration of a single chemical substance but the strength of
   complex odors composed of complex substances)
¨è Send the measured data to Central Control Unit (CCU)
   ¢¡ Equip with 16km range wireless communication device (900MHz & 2.4MHz)
¨é Equip with cooling device to keep the inside of E-nose at certain temperatures
¨ê For 1 set of E-nose, 16 odor detection sensors are attached
   (change according to site condition)
¨ë Odor detection sensors
    - installed inside of E-nose
    - composed of 16 sensors based on MOS (Metal-oxide semiconductor) Technology
    - Wide-ranging reaction
    - High sensitivity
    - Strong durability
    - Easy replacement
¨ì E-nose is to be installed close to odor source
    - Measure high odor concentration in the source
    - Exclude any interference by surrounding air 
    - Prevent mixing of other odor by complex odor
      source 		high measurement reliability
 
¨ç Measure field weather condition and send the measured
   data to a Central Control System
¨è Central Control System provide data to calculate odor plume
¨é Measure outside/inside temperature
¨ê Measure outside/inside humidity
¨ë Measure atmospheric pressure
¨ì Measure radiant heat
   (Calculate mixing level and stability of the atmospheric layer)
¨í Measure wind direction
¨î Measure wind speed
 
¨ç Collect, store, analyze, correct, display DATA from E-nose and Weather
   Station
¨è Display odor emission strength in values in accordance with air dilution
   sensory test of Odor Process Test Method
¨é Display the max, concentration of spreading odor by using Air Spreading
   Modeling that combines the Bi-Gaussian model and the Gifford model  
¨ê Calculate odor emission flow and odor plume
¨ë Predict odor plume after 2, 4, 6, 24 hrs
¨ì By combining weather data and odor data, display odor plume in graphic
   form on the map
¨í As odor plume is quantified and colorized by odor strength, operator can
   easily recognize the odor emission strength in any specific area
¨î Calculate odor generation frequency, prepare automatic reports
¨ï Wireless data transmission via Internet
¨ð Connect wireless network with E-nose and Weather Station
¨ñ Correct received odor DATA ¢¡ Combine the measured values of human olfactory and E-nose, correction function
 
Reliability of odor measurement data
 
 
1) Measure odor emission strength specified by Odor Prevention Law
2) Predict the direction of odor spreading and odor emission strength
3) Odor source monitoring
4) Utilize as a preparation for odor-related public petition
5) Able to determine odor source and affected area by emission facility managers and residents
6) Decrease in unnecessary public petition based on subjective judgment
7) Restore confidence between odor emission source and petitioners
8) Enable appropriate operation of odor emission facility by order management
9) Able to conduct post assessment on the odor management facility and the subsequent establishment of future improvement plan