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4-nine destruction

The committee was also asked to evaluate the trial burn practices at the incineration-based facilities and compare them with similar practices in industry. Each Chemical Materials Agency (CMA) incineration facility has several types of incinerators and each has been required, by permit, to carry out a surrogate burn on all of its furnaces after start-up and before feeding any agent. A surrogate trial burn is required to demonstrate the ability of the unit to achieve a 99.9999 percent ( six nines ) destruction and removal efficiency and unit operability. They have then been required to carry out a trial burn with each agent. After the trial burn, the feed rates are reduced to 50 percent until the trial burn data... [Pg.20]

Incinerators burning solid PCB wastes must have a 99.9999% destmction efficiency (six-nines). For each 1 milUon g of PCBs fed, only 1 g is allowed to leave the stack. TSCA standards are much more restrictive than RCRA, which allows 1 g to be released for each 10,000 g of waste fed (99.99%, or four-nines destruction efficiency). [Pg.148]

Nine runs on JPN propint gave an average Qv of 1110 140cal/g at 250°. Systems examined included N-5, JPN, ABL-2056, TNT/AN/NaCl, TNT/AN/paraffin, and C(NC>2)4 proplnts TNT, RDX, PETN, Tetryl, and NG expls. DTA-detd Qv values can be misleadingly low when evaluating the potential destructive power of a material... [Pg.946]

Nine people were killed in the explosion, but the annex full of American citizens was saved from destruction. [Pg.30]

Although the ubiquitination site(s) of -catenin was previously unknown, two lysines of I/cBa located ten and nine residues upstream of the destruction motif had been shown to be necessary and sufficient for ubiquitination and degradation [18, 19]. By analogy, a jS-catenin lysine (Lysl9) 13 residues upstream of the destruction motif was predicted to be the site where / -catenin is ubiquitinated. This was confirmed by the in vitro ubiquitination assay, in which a 26-amino acid j8-catenin peptide that contains Lysl9 and the doubly phosphorylated destruction motif was ubiquitinated in an -dependent manner to an overall level comparable to an... [Pg.179]

In 1974 Midwest Research Institute operated a pilot-scale multiple chamber incinerator to evaluate for EPA the operational variables for pesticide incineration (8). The system included a. pilot-scale incinerator, a three-stage scrubber system, and a scrubber water treatment system. Nine pesticides (aldrin, atrazine, captan, DDT, malathion, mirex, picloram, toxaphene, and zineb) in 15 liquid and solid formulations were studied. Destruction efficiencies generally exceeded 99.99% over a range of temperatures and retention times ( 950 to 1100°C, 1.2 to 6 s, and 80 to 160% excess air). This study also documented the generation of measurable quantities of cyanide in the incinerator off-gas during the incineration of organonitrogen pesticides. [Pg.184]

If the nature of spacetime involves the interference of dual wave fronts of two dimensions, then there are two wave fronts, each of two dimensions, that constructively and destructively interfere, but that are determined by the same symmetry space. Gravitation can be described by the set of diffeomorphisms of a two-dimensional surface and SU(2) x SU(2) x SU(3) plus gravity involving a space of nine dimensions. The additional dimensions to spacetime are purely virtual in nature. A field dual to QCD would require a large space of 12 dimensions, and an additional constraint is required in order for this theory to satisfy current models of supergravity. [Pg.217]

Catechol and hydroquinone by-products were also detected in the photocatalytic destruction of nitrophenols [117]. Ninety-nine percent destruction of 4-nitrophenol was achieved within 3 h, although for complete mineralisation up to 9 h irradiation was necessary. The presence of oxygen not only affected the level of mineralisation of the nitrophenol but also the extent of denitration, believed to be the major initial step of the photocatalytic process. Hydrogen peroxide was reported to significantly improve the rate of photocatalytic process increasing the destruction rate by up to 3 fold. Addition of Cu ions, however, had a detrimental effect [118]. [Pg.389]

The anodic destruction of low-concentration cyanide solutions was studied using nine different lead dioxide anodes which were plated from lead nitrate solutions con-... [Pg.376]

Rates of platelet destruction varied from 1.1 x 10 to 5.6 x 10 platelets per cm of exposed surface per day. Since studies evaluating polyurethanes as well as acrylic and methacrylic polymers and copolymers showed that platelet destruction rates may exceed 20 x 10 platelets/cm -day, the nine plasma polymers evaluated were considered to be considerably less reactive. Since each polymer was evaluated only four or five times with average results in each case near the lower sensitivity limit for this test system (about 1 x 10 platelets/cm -day), further statistical interpretations of the data presented in Table 35.7 would be inappropriate. Thus, due to the passive nature of these materials, conclusions could not be drawn regarding the relative importance of specific surface chemical moieties, i.e., all plasma polymers investigated are relatively nonreactive regardless of type of monomer used. This might imply that all type A plasma polymers have the characteristic feature of imperturbable surface regardless of what kind of atoms and moieties are involved, and because of this feature all plasma polymers tested performed better than most conventional polymers. [Pg.794]

However, Cooley and Cohen (C9) studied nine cases of idiopathic thrombocytopenic purpura in. which they failed to find any consistent correlation between the plasma acid phosphatase activities and platelet counts. Cohen et al. (C6) had shown that this condition could be classi-fifed into two major types, destructive and nondestructive, comprising 80% and 20%, respectively, of the total. In sequential studies of their various patients, Cooley and Cohen (C9) did not find any increased plasma acid phosphatase activity in those showing the destructive type, although in two cases of nondestructive (hypoplastic) thrombocytopenias, the plasma acid phosphatase activities were usually normal or low. Cooley and Cohen (C9) also found that in a group of eight patients with secondary (nondestructive) thrombocytopenias with nearly normal platelet life-spans (mostly 5-7 days) the plasma acid phosphatase levels tended to be low and to be correlated with the platelet count. [Pg.122]

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]

I was nine years old. It was December 1945. Four months earlier, in the heat of an August morning—Hiroshima. Destruction. Death. Power beyond belief, released from something invisible h Without knowing its name. I d already felt the atoms power in another form... [Pg.28]

Peptide motifs. Proteins with certain homologous sequences are rapidly degraded. For example, proteins that have extended sequences containing proline, glutamate, serine, and threonine have half-lives of less than 2 hours. (PEST sequences are named for the one-letter abbreviations for these amino acids. See Table 5.1.) The cyclin destruction box is a set of homologous nine-residue sequences near the N-terminus of cyclins that ensures rapid ubiquination. [Pg.508]


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