Incinerators

AeroPulse has many collectors on incinerators. We’ve listed these jobs below.

In addition, we’ve met the European code on toxin and dioxin of 0.1 ng/M³. Our results were 0.006 ng/M³, a success rate of sixteen times the European code. The data is included. In addition, we’ve enclosed our results on the elimination of the affluent from burning of PCB’s at Norlite Corporation in Cohoes, New York. Again, we’ve enclosed our results. We met the codes on everything but mercury. We were not asked to remove mercury. Had we been we would have introduced carbon to the system and this has shown to meet the codes of mercury by a factor of 4 to 12.

We’ve also included pictures on our portable units which have been furnished for mobile incineration systems.

Kings College Hospital – England

Measurement of Emissions of Polychlorinated Dibenzo-p-dioxins
and Polychlorinated Dibenzofurans
From the Clinical Waste Incinerator at Kings College Hospital –
29 September 1994

1  Summary and Introduction

1.1  Clinical Waste Limited operate a clinical waste incinerator at Kings College Hospital. TBV Science measured concentrations of polychlorinated dibenzo-p- dioxins (PCDDs) and polychlorinated dibenzofurans (PCDFs) emitted from the incinerator on 29 September 1994. The result of this measurement is reported at the referenced conditions of 273K. 101.3 kPa, dry gas and 11% oxygen. The mass emission rate has also been reported.

2  Plant Description

2.1  The incinerator is used to burn clinical waste generated on the hospital site. Combustion may be aided by the burning of natural gas. Exhaust gases leave the incinerator at a temperature of about 1100° C and pass through a steam-raising boiler and then a wet scrubber. The cleaned gases are then discharged through a separate flue in a multi-flue stack.

2.2  During the period of this site visit, the plant was reported to be running normally.

3  Measurement Technique

3.1  Sampling was carried out via a standard 4 inch BSP port installed on a horizontal section of flue downstream of the wet scrubber.

3.2  The method used for sampling is described in an in-house technical procedure note and conforms to the main procedural requirements of US EPA Method 23. Gas was extracted from the stack at a rate of 15 1 min^-1 over a period of four hours. PCDDs and PCDFs contained in particulate matter were collected on a glass fibre filter and those in the vapour phase were trapped in a glass column containing XAD^-2 absorbent resin maintained at <20° C. The filter and column had been supplied precleaned by Scientific Analysis Laboratories, Ltd. and were returned to them for analysis for PCDDs and PCDFs.

4  Results

4.1  Analysis for PCDDs and PCDFs was carried out on a combined toluene extract of the filter and the XAD^-2 resin. A standard analytical procedure was followed, and the result quoted is the sum of the concentrations of the PCDDs and PCDFs, weighed according to their relative toxicities using the so-called toxic equivalent factors derived by the US EPA, NATO/CCMS and the EC.

4.2  The total concentration of PCDDs and PCDFs in the emitted gas under Normal conditions of dry gas, temperature 273K and pressure 101.3 kPa was <0.003 ng/Nm³ at the measured oxygen concentration of 16.0% which is equivalent to <0.006 ng Nm^-3 at 11% oxygen. This corresponds to an emission rate of <9 x 10^-3 ng 5^-1.

EXECUTIVE SUMMARY
NORLITE CORPORATION
Cohoes, New York

Norlite Corporation, located in Cohoes, New York, operates two thermal treatment processes (rotary kilns) to manufacture lightweight aggregate for the construction industry. The rotary kiln process utilizes certain Low Grade Fuels (LGF) as substitutes for fossil fuels. This form of beneficial recycling is known as energy recovery. Both New York State and Federal regulations require that industrial furnaces which utilize hazardous waste fuels for energy recovery must conduct comprehensive emissions tests to establish safe operating limits. These test results identify operating limits and become part of the facility permit. These emissions tests must quantify the following critical parameters:

• Destruction and Removal Efficiency (DRE) for Principal Organic Hazardous Constitutes (POHCs).
• Emission Rates of Acid Gases formed as byproducts of the combustion process, and removed by the Air Pollution Control System (APCS). Acid gases principally include hydrogen chloride, sulfur dioxide and oxides of nitrogen.
• Emission Rates of Particulate Matter, also removed by the APCS.
• Emission rates of 14 regulated metals, contained in the raw aggregate feed materials and LGF and removed by the APCS.

The results are as follows: