{"id":178,"date":"2018-04-06T20:31:25","date_gmt":"2018-04-06T20:31:25","guid":{"rendered":"https:\/\/biosafeeng.com\/biosafe\/?page_id=178"},"modified":"2021-04-14T19:04:11","modified_gmt":"2021-04-14T19:04:11","slug":"tissue-digestion-vs-incineration","status":"publish","type":"page","link":"http:\/\/box5461.temp.domains\/~biosafee\/divisions\/life-science\/resources\/tissue-digestion-vs-incineration\/","title":{"rendered":"Tissue Digestion vs. Incineration"},"content":{"rendered":"
Incinerators come in many forms. Pathological incinerators, with secondary gas retention chambers of 2 seconds retention time (no scrubbers currently required) are discussed here.<\/p>\n
The basic pathological incinerator is a stuff and burn system, with a side-fed door. This type of system is difficult to feed, particularly if large animals are to be processed. Carcasses have to be dissected or butchered to provide pieces small enough to fit through the feed door and these pieces may be heavy, difficult, and potentially dangerous to handle. Pathologic incinerators are available with a top load, large door but this adds considerably to the cost and is usually still not adequately sized for whole equine, bovine, or porcine carcasses. Some units are available with a top-fed ram that loads tissues into the side door of the burn chamber. Again, however, large animals must be quartered or further cut up before loading into the hopper of the ram.<\/p>\n
An incinerator is not a true batch system because air goes in and air flows out constantly during the processing cycle which can violate the concept of a “contained area”. In addition, most incinerators must be operated by adding more tissue as the burn progresses in order to meet the throughput requirements of the institution.<\/p>\n
Ram feed systems become contaminated and remain that way, they are not easily cleanable.<\/p>\n
Incineration also achieves significant volume reduction, up to 97%, but toxins and heavy metals are concentrated in the incinerator ash, yielding a residue that is usually classified as toxic waste. Toxins, including dioxins, halogenated hydrocarbons, and mercury vapor are produced by the combustion process and are released through the stack into the atmosphere.<\/p>\n
Incineration has the ability to contaminate not only the air we breathe, but also ground water, soil, livestock, and Humans through the emissions emitted from the smokestack.<\/p>\n
A Tissue Digester system is complete on installation. No preprocessing or post-processing equipment must be added for convenience of operation or to meet clean air regulations.<\/p>\n<\/div>\n
For BSL3 and BSL4 bio-containment applications, the Tissue Digester is far more adaptable to work-flow considerations in laboratory design thus making a Tissue Digester system more desirable:<\/p>\n
The Tissue Digester is much less costly to own and operate over the long term when maintenance and yearly air pollution permits are considered in the yearly operating costs.<\/p>\n<\/div>\n
Alkaline Hydrolysis eliminates the potential to expose the attendants to pathogens, toxins, and other types of hazardous waste as compared to incineration.<\/p>\n
While the installation of a Tissue Digester may be slightly more expensive than a basic pathologic incinerator of comparable capacity, the environmental “greening” aspects of Alkaline Hydrolysis technology and the ability to provide a higher level of efficacy far out-weigh the old, pollution-generating, inexact methods of the past.<\/p>\n<\/div>\n","protected":false},"excerpt":{"rendered":"
Tissue Digestion In Tissue Digestion (alkaline hydrolysis), all tissues and carcasses are placed in a pressure vessel and the vessel is sealed before the process begins. Tissue Digesters are loaded from the top through an opening that is equal to the diameter of digestion vessel. For small- and medium-sized digesters, an internal basket is preloaded […]<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":174,"menu_order":2,"comment_status":"closed","ping_status":"closed","template":"page_subpage_life.php","meta":{"content-type":"","footnotes":""},"acf":[],"yoast_head":"\n