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Disposal of Bio-Medical Waste

12/27/2010 7:18 AM

Hello CR4 Family

I have a querry for you friends, in terms of enviromental friendliness. What is the currently acceptable means of disposing biological and medical waste, especially in a research based laboratory (including disinfection, incineration etc)

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#1

Re: Disposal of Bio-Medical Waste

12/27/2010 10:04 AM

Each country has its own rules / code to comply with. Although it may be very similar there are differences.

Where are you from?

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#2

Re: Disposal of Bio-Medical Waste

12/27/2010 10:59 AM

There are many different regulations and rules for each location. Follow your local standards. Unfortunately most of the time irrational public opinion trumps educated opinions in setting the standards but they still must be followed.

I prefer the use of on site incineration for biomedical waste, with temperature monitor circuitry that guarantees operation above a critical temperature. This does mean many small furnaces that must be maintained instead of one massive furnace remotely located. But I feel the idea of transporting biomedical waste is just asking for a problem to happen.

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#5
In reply to #2

Re: Disposal of Bio-Medical Waste

12/27/2010 10:48 PM

I agree 100%.

The less you carry the stuff, the lower the risk of accidents.

Also, new plasma furnaces are becoming available that turn anything into a syngas and minerals. Even the nasty bugs any lab can come up with...

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#9
In reply to #5

Re: Disposal of Bio-Medical Waste

12/29/2010 2:47 PM

I agree with MARCOT. The plasma gasification systems can handle nearly any medical/research bio waste. They can even generate power to offset the cost in about ten years. There is a horrible medical dump near ORO Arizona that has ruined the local water supply. One of these systems should be placed there to get rid of the nuisance and stop the long-term contamination.

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#7
In reply to #2

Re: Disposal of Bio-Medical Waste

12/28/2010 2:40 AM

I totally agree with the use of incineration to burn medical wastes as per the HTM( Health Technical Memorandum )Standards. Modern incinerators use latest technique and make the ash handling of incineration is easier. Here in Oman incinerator is mostly used for disposing medical wastes.

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#3

Re: Disposal of Bio-Medical Waste

12/27/2010 11:33 AM

The accepted procedure here is to place it in a Viking longboat, push it off from shore and set it afire with flaming arrows from the shore. The tourists just love it.

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#4

Re: Disposal of Bio-Medical Waste

12/27/2010 4:05 PM

When it comes to biomedical waste from a research laboratory, incineration is the best choice for potentially infectious material and (probably) biological material containing drug residues.

The air pollution generated by burning such waste is of small consequence compared to the risk of releasing infectious biohazardous material (or probably, drug residues) into your environment. The ash from such biological waste can be safely disposed of in a bioremediation/composting program for ornamental trees and shrubs (ie for bioremediation in landscaping, not food production). Likewise, in an experimental facility, the waste (droppings or cage litter) of experimental animals should be considered a potential biohazard to be incinerated if potentially infectious or directly composted for bioremediation through landscaping (not food production) if there is no infectious material risk.

Incineration is not a good choice if radioactive material is in the waste. The processes appropriate to this sort of waste are well defined, and if you are concerned about your local standards, you should consult and compare standards observed elsewhere, including those delineated by the WHO, which are surely available by a search online.

As for contaminated non-biological materials, plastic, metal, or other material should be separated for processing, and the necessary pre-processing to eliminate biohazards from a specific material before general processing can be determined. I know less about plastics, but certainly metal can be pretreated at temperatures that remove any biohazard (autoclaved) and either re-used or recycled.

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#6
In reply to #4

Re: Disposal of Bio-Medical Waste

12/27/2010 11:01 PM

Good catch about the possible radioactive material.

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#8

Re: Disposal of Bio-Medical Waste

12/28/2010 5:49 PM

One thing to be aware of is standards a Certifying organization may have. When we are going through the Certification process they look closely at what has been picked up, by whom and where it was destroyed. They make sure loading logs and manifests match etc.

We have dealt with some companies who have incinerated the waste and also with a company that shreds it all and treats it with chemicals to make it non-hazardous. It can then be discarded as trash.

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#10

Re: Disposal of Bio-Medical Waste

01/01/2011 7:36 PM

Autoclaved in this area..... incineration is a no no..... which leads to.... we send our yellow waste to Kansas city to be incinerated (not in our back yards). Related to St Louis's past experience of soot choked skys in the last century(19th).

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#11

Re: Disposal of Bio-Medical Waste

01/03/2011 1:57 AM

Thank you all at CR4 for your feedback and may you all have a happy and prosperous 2011. Your inputs will help in our anticipated upgrading of incineration equipment. We currently use incineration and a limited autoclaving and in need of upgrading our current incinerator (or replace with current alternatives). There seems to be no alternatives to incineration and the jury still supports incineration for our type of work.

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