Water and Wastewater.com Help Forums - Biological Sludge Hazardous Classification

Nasir Junior Member Offline Water and Wastewater.com is the best! Posts: 71 Company or Organization: ABC	Biological Sludge Hazardous Classification Jan 24^th, 2012, 8:58am What is the USEPA classification for the sludge generated from biological waste water treatment plant from food and beverage industry? is it listed as hazardous waste?
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grrun

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Re: Biological Sludge Hazardous Classification
Reply #1 - Jan 24^th, 2012, 12:40pm

Generally, these two sections of the Regulations cover the identification of Hazardous wastes. My interpretation of these regulations is that this wastewater sludge is a non-hazardous waste (but a waste that should be "tracked" to assure proper disposal). This assumes that it does not possess any "Hazardous Characteristic" as defined in 261 Subparts C & D.

http://ecfr.gpoaccess.gov/cgi/t/text/text-idx?c=ecfr&sid=17a2535c621849a445b84c35a9048a01&rgn=div8&view=text&node=40:26.0.1.1.3.1.1.2&idno=40

http://ecfr.gpoaccess.gov/cgi/t/text/text-idx?c=ecfr&sid=17a2535c621849a445b84c35a9048a01&rgn=div5&view=text&node=40:26.0.1.1.2&idno=40

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DrHenry

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Re: Biological Sludge Hazardous Classification
Reply #2 - Jan 24^th, 2012, 3:12pm

It is not a listed waste, but testing must be done to ensure it does not fail the chemical/characteristic tests. How many times you would need to do this after the first time is not very clear. You should ask your permit writer to cover all bases. In food and beverages, it is hard to imagine it would be a problem.

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dwi handaya God Member Offline Water and Wastewater.com is the best! Posts: 531 Indonesia Gender: Company or Organization: WWT freelancer	Re: Biological Sludge Hazardous Classification Reply #3 - Feb 6^th, 2012, 8:44pm Just to reference from my case Last three month, we test of biological sludge cake from oil & gas plant Test for TCLP and LD50 TCLP test for metals, organic and anorganic --> result is not hazardous waste LD50 approx 18,000 mg/kg
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Henry Jennifer YaBB Newbies Offline I love Water and Wastewater.com Posts: 1 Company or Organization: FitSoft	Re: Biological Sludge Hazardous Classification Reply #4 - Feb 8^th, 2012, 2:10am Why these waste material gets recycled so that it won't harm also.
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DrHenry God Member Offline Ride, boldly ride, The shade replied... Posts: 788 Raleigh, NC Company or Organization: CESTAB (see bio)	Re: Biological Sludge Hazardous Classification Reply #5 - Feb 8^th, 2012, 12:41pm Not sure I understand your question, but in general sludges can not be recycled for benificial purposes. You have to do the recycling back at the plant. The sludges can be used for fertilizer in some limited situations, but that has a liability attached.
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