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There are various regulations for each incinerator, including the sludge incinerator, stipulate the detailed monitoring, reporting, performance test, and planning requirements for each type of incinerator. A sludge incinerator burns down at approximately 20,000 dry tonnes of sludge annually. The incinerators have been retro-fitted with extensive flue gas clean-up systems to meet emissions standards. The hydroxide scrubber id very favorable over an incinerator as most of the emitted no x from sewage sludge incinerators is no 2. Depending on certain factors like, whether the incinerator is multiple hearth, fluidized bed, or an electric sludge incinerator, the monitoring devices for the incinerators can be decided. The emissions to the atmosphere, from a sludge incinerator must not exceed 10 g of beryllium over a 24-h period, in an otherwise case, special approval has to be received for alternate emissions limits. Also, there are regulations about the daily concentration of lead, arsenic, cadmium, chromium, and nickel in sewage sludge fed to a sewage sludge incinerator based on formulas in the text of the regulation.
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