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Sanitization tunnels for Corona virus

  • 1.  Sanitization tunnels for Corona virus

    Posted 04-21-2020 02:22
      |   view attached
    Does anyone have guidelines concerning the above subject ?
    There are contradictory reports. Government of India has advised against the use of (very weak) aqueous sodium hychlorite (NaOCl) as a sanitizing agent (attached advisory)  whereas there have been report (videos also) of such tunnels in operation in China & possibly S. Korea. I am personally not in favor of this procedure because of my past experience with laboratory experiments on absorption of Cl2 in alaklis. Delicate organs like nose & ear are the main cause of worry. As against this apprehension, one needs to establish the positive effect in terms of, for example disinfection of infected clothes/footwear, etc. Experimental proof is fraught with dangers since apparel with known quantity of the virus (an obvious hazard) will need to be used to prove the efficacy of NaOCl or any other agent (Mr Clean-H2O2 ?)  !
    Let us get some expert views.

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    Vishwas Pangarkar PhD
    Retired Professor of Chemical Engineering, University of Mumbai, India.
    Currently: Independent Chemical Engineering Academic/Professional.
    Nasik-422013, India.
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  • 2.  RE: Sanitization tunnels for Corona virus

    Posted 04-22-2020 10:20
    In continuance of my previous post here is what I found on the Internet:
    Diversey, Inc. Hygiene company: https://hospitality.economictimes.indiatimes.com/news/operations/housekeeping/disinfection-spraying-tunnels-for-covid-19-not-advisable-diversey/75176331
    Looks like there is an overwhelming opinion (backed by sound logic) against Sanitization tunnels for Corona virus. Social distancing is the single-most ADVISORY.


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    Vishwas Pangarkar PhD
    Retired Professor of Chemical Engineering, University of Mumbai, India.
    Currently: Independent Chemical Engineering Academic/Professional.
    Nasik-422013, India.
    ------------------------------



  • 3.  RE: Sanitization tunnels for Corona virus

    Posted 04-23-2020 01:53
    Agree with Mr.Vishwas.

    Public health and Preventive Medicine-Chennai instructed not to use these tunnels, as chemicals(alcohol/chlorine/lysol) which are sprayed in the tunnels are harmful and ineffective.

    Regards,





  • 4.  RE: Sanitization tunnels for Corona virus

    Posted 04-23-2020 09:42
    I think these kind of tunnel should be made for sanitizing public transportation in absence of public. In many states public transportation like govt. buses and city buses don't have such facilities. Sanitization after 1-2 runs might help minimize spread of virus cross border. Moreover, this tunnel can be used to sanitize trains and for inside they can use UVC lamps after 1-2 run. It'll take about 1-2 hour to properly sanitize public transportation mode.

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    Hitesh Ramchandani
    Assistant Professor
    R.N.G. Patel Institute of Technology, Surat
    Surat
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  • 5.  RE: Sanitization tunnels for Corona virus

    Posted 04-24-2020 03:13
    Let me reproduce below the sanitization I practice. I had described it in an email to my friends:
     "If I go to the bazar (once a week at least), I don't carry my wallet, only the mobile, wrist band and estimated currency. On return I put the entire set: cloth bags (Shabanam type), trousers and shirt (Mody type in cotton) in the washing machine. Footwear is always outside the main entrance in the sun in the portico of my little bungalow. The purchases are quarantined on the 1st floor for 24 hrs. Mobile, scooter key and wrist band are sanitized by the liquid and then used. The paper currency and coins are given a thorough Dettol soap wash (The currency is the biggest culprit since it is handled multiple times by all types. Further, the virus lives long on it.). The paper money is kept for drying but the coins are put in a box with a layer of soap lather. The improvised cotton handkerchief mask goes to the washing machine & washed rubber bands go to the box containing coins. Last comes a thorough & refreshing bath
    I believe I am following all the instructions-anything wrong/missing ?"
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    I believe now it will be clear that the spray tunnel is useless in sanitizing what is in the trouser pockets (wallet, keys, etc), wrist watch/band, mobile handset currency in the wallet. Just forget what is inside the body which produces the deadly sputum, phlegm, etc. The spray can do more damage than good if it goes into the human suction through the nose or into the eyes. The procedure should be at least similar to the Airport security where one is required to remove wallet, wrist watch, laptop and so on. Having done that the next step should be sanitization of this deadly hidden mix without damaging the electronic items. The human body as I mentioned above is definitely NOT TO BE SPRAYED (I had attached evidence for this in my earlier post).
    Any additions to the above ?


    ------------------------------
    Vishwas Pangarkar PhD
    Retired Professor of Chemical Engineering, University of Mumbai, India.
    Currently: Independent Chemical Engineering Academic/Professional.
    Nasik-422013, India.
    ------------------------------