外文翻譯---污泥處理的可持續(xù)性分析-文庫吧資料
2025-05-22 09:17本頁面
【正文】 . If the calorific value of sludge LCV is too low (such as low volatile solids, and / or solid content), exhaust / gas heat exchanger should be large enough to increase the wind room temperature. If you fail (such as extended aeration sludge containing 20% DS), you need to in front of heating and drying. On the dry ash disposal, industrial pollution is not purely for the municipal sludge, heavy metals, not a problem. Because gray is the form of oxides, their permeability is not strong, so it can be reused as cement, used for industrial and road construction. The final step acid byproduct is removed. As the heavy metal pollution, they can only be buried in a special place, but in small quantities. Coincineration of municipal solid waste. In order to reduce investment, urban waste and municipal sewage sludge is usually a burning furnace. Typically, a population equivalent of daily production of 150 to 250 grams of dehydrated viscous sludge and 1 ~ 3 kg of garbage. According to the design of incinerators, can be 10 ~ 25% (soil / litter) and viscous sludge to control the temperature of the stove. In order to achieve optimum bustion, and is not due to unbrunt organic sludge contaminated clinker can be used as a processing capacity 1m3 / h of PyromixTM equipment, through the pressed air to turn into a drop of sludgelike mud. In fact, this method only if the wastewater treatment plant is running away from the municipal solid waste incinerator close when the benefit, otherwise the cost of transportation will be high. Sludge in the system at this time only when necessary to use as the control flow. Wet air oxidation. Vivendi Water Systems R amp。 stirring reactor corridor 39。rough39。 Lowinput and operating costs。3附錄 外文翻譯 外文原文 Sludge treatment of sustainability analysis One idea As urban sewage and industrial sewage collection and sewage treatment rate of increase in efficiency improvements (such as the chemical phosphorus removal sludge can increase by 30%), making total amount of sludge in the world increased dramatically. Land application of sludge disposal is still a way out for sustainable development will depend mainly on the following factors: Carbon and nutrient recycling。 Around the availability of agricultural land and its distance。 Stringent legal requirements and control procedures to ensure the safety and sewage sludge fertilizer. However, according to the actual situation or local regulations, the land application of sewage sludge before the producers had to be advanced, more expensive treatment in order to meet further requirements, such as post, heat treatment or hightemperature sterilization digestion. However, a large part of the sludge, for obvious reasons can not be used in agriculture, such
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