外文翻譯---污泥處理的可持續(xù)性分析(存儲(chǔ)版)
【正文】 the public but was denied. Regardless of what treatment can be identified in the future treatment should be safe, environmental protection (protection of people and flora and fauna) and should add value (material and / or energy recovery). For these purposes, sludge treatment should be reduced sludge volume, improved sludge quality and reduce harmful emissions. This paper will introduce a number of important processes, in order to meet the needs of operators, and involving other technical or regulatory constraint. （ 1） The land of rational utilization As a prerequisite, sludge should be at least stable, that is, the actual request was not running on the smell. Local laws may require or in the future will be even higher: sludge may be required to disinfect / Pap sterilization. Sterilization requirement of a mandatory goal: to pathogens such as intestinal virus, typhoid bacteria, nematodes, parasite eggs and other samples after treatment should be detected. Biological treatment. Process volatile use of biological sludge. Such as anaerobic digestion (AD), selfsupporting aerobic digestion (ATAD) process. Chemical treatment. The degradation of volatile organic pounds to curb corruption. Such as the acidic nitrite SAPHYRTM process. Physical treatment. The degradation of volatile organic pounds to curb corruption. Such as sludge incineration. Most of these processes are stable and sterile, but the extent of disinfection depends on the number of parameters such as HRT (hydraulic retention time) or chemical dosage. Thermal oxidation process is clearly far beyond the stability of sludge, disinfection and pasteurization requirements. Because organic matter was pletely or almost pletely removed. The biological stability of sludge Liquid (condensation): digestion We are most familiar is the traditional method of sludge disposal digestion, it can reduce the amount of sludge produced. Either aerobic or anaerobic, it involves a lot of energy. At present, most large sludge treatment plant or regional centers use the method, this process is still leading in number. At the same time, some other operation or in the digestion before or after digestion, but also provides enhanced processing power. Attached to state sludge (dehydrated): posting Composting is the only existing sludge from the waste can be turned into products, processes, and there is a lot of strict rules or criteria for accreditation. Because the sludge into a new product, easy to operate (can be stacked) rather tasteless, disinfection well and drier. This process is gaining momentum. On the other hand, because it does not reduce the final volume, takes a lot of area and more personnel. Furthermore, in order to meet the new requirements (temporary EU standards o
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