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POHCs constituents

SW-846, is used to measure emissions of semivolatile principal organic constituents. Method 0010 is designed to determine destruction and removal efficiency (DRE) of POHCs from incineration systems. The method involves a modification of the EPA Method 5 sampling train and may be used to determine particulate emission rates from stationary sources. The method is applied to semivolatile compounds, including polychlorinated biphenyls (PCBs), chlorinated dibenzodioxins and dibenzofurans, polycyclic organic matter, and other semivolatile organic compounds. [Pg.2207]

The routine monitoring of every hazardous constituent of the effluent gases of operating incinerators is not now possible. EPA has established procedures to characterize incinerator performance in terms of the destruction of selected components of the anticipated waste stream. These compounds, labeled principal organic hazardous components (POHCs), are currently ranked on the basis of their difficulty of incineration and their concentration in the anticipated waste stream. The destraction efficiency is expressed in terms of elimination of the test species, with greater than 99.99 percent removal typically judged acceptable provided that toxic by-products are not generated in the process. [Pg.134]

During operation, the owner/operator of an incinerator must conduct sufficient waste analyses to verify that the waste feed is within the physical and chemical composition limits specified in the permit. This analysis may include a determination of a waste s heat value, viscosity, and content of hazardous constituents, including POHCs. Waste analysis also comprises part of the trial burn permit application. U.S. EPA stresses the importance of proper waste analysis to ensure compliance with emission limits. [Pg.964]

Principal organic hazardous constituents (POHCs), 13 184 Principal Register, 25 258-259 registration of a mark on, 25 263 Principles of Good Laboratory Practice (OECD), 18 540... [Pg.760]

First, the incinerator must achieve a destruction and removal efficiency (DRE) of at least 99.99% for each of the designated Appendix VIII chemicals present in the waste feed. In other words, 0.01% of the respective compound in the waste feed can be emitted in the incinerator stack gases. The specific Appendix VIII chemicals evaluated are selected by EPA from those found in the hazardous waste at reasonable concentrations and are termed principal organic hazardous constituents (POHCs). [Pg.186]

JACADS Johnston Atoll Chemical Agent Disposal POHC principal organic hazardous constituent... [Pg.18]

The application process requires basic information to demonstrate that the design and operation of the incinerator will result (see previous problem) in the destruction of principal organic hazardous constituents (POHCs) by 99.99% a hydrogen chloride scrubbing efficiency of 99% or, as described in the previous problem, <41b/h maximum HCl emissions and particulate emissions <0.08gr/dscf corrected to 50% excess air (EA). These may be written in equation form as ... [Pg.444]

By federal law (as described in Chapter 22), hazardous waste incinerators must meet a minimum destruction and removal requirement, i.e., that the principal organic hazardous constituents (POHCs) of the waste feed be incinerated with a minimum destruction and removal efficiency (DRE) of 99.99% ( four nines ). The destruction and removal efficiency is the fraction of the inlet mass flowrate of a particular chemical that is destroyed and removed in the incinerator or, equivalently. [Pg.505]

The principal organic hazardous constituents (POHCs) of the waste must be destroyed to the required destruction and removal efficiency. HCl and particulate emissions must comply with state and federal regulations for hospital waste incinerators. [Pg.532]

A trial bum is conducted with the waste composition in the preceding table. The designated principal organic hazardous constituents (POHCs) for the trial bum are methyl alcohol, polyvinyl chloride, and xylene. The results of the trial bum are ... [Pg.534]

Determine the principal organic hazardous constituents (POHC) flowrate in the stack for a 99.995% DRE. [Pg.934]

It must achieve a destruction and removal efficiency (DRE) of 99.99% for each principal organic hazardous constituent (POHC). It is determined from the following equation ... [Pg.903]

EPA standards for hazardous waste incineration are based on the effectiveness of destruction of principal organic hazardous constituents (POHCs). Measurement of these compounds before and after incineration gives the destruction removal efficiency (DRE) according to the formula... [Pg.440]

An incinerator is primarily operated to destroy chlorophenols as the POHCs fed along with other less hazardous constituents at an average rate of 10 kg/h. The exhaust gas coming from the incinerator stack at a rate of 10 m /min contains 1 pg/m of chlorophenols. What is the DRE of the incinerator for the POHC ... [Pg.449]

See other pages where POHCs constituents is mentioned: [Pg.44]    [Pg.2206]    [Pg.461]    [Pg.477]    [Pg.962]    [Pg.970]    [Pg.894]    [Pg.1712]    [Pg.44]    [Pg.396]    [Pg.39]    [Pg.40]    [Pg.41]    [Pg.102]    [Pg.1962]    [Pg.734]    [Pg.442]    [Pg.461]    [Pg.484]    [Pg.245]    [Pg.2210]    [Pg.146]    [Pg.704]   


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POHCs

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