[1]胡维杰.城镇污水污泥燃煤电厂协同焚烧技术解析[J].中国给水排水,2021,37(8):24-31.
HU Wei-jie.Analysis on the Urban Sewage Sludge Co-incineration Technology of Coal-fired Power Plants[J].China Water & Wastewater,2021,37(8):24-31.
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HU Wei-jie.Analysis on the Urban Sewage Sludge Co-incineration Technology of Coal-fired Power Plants[J].China Water & Wastewater,2021,37(8):24-31.
城镇污水污泥燃煤电厂协同焚烧技术解析
中国给水排水[ISSN:1000-4062/CN:12-1073/TU] 卷: 第37卷 期数: 2021年第8期 页码: 24-31 栏目: 出版日期: 2021-04-17
- Title:
- Analysis on the Urban Sewage Sludge Co-incineration Technology of Coal-fired Power Plants
- Keywords:
- urban sewage sludge; co-incineration; power plant
摘要:- 城镇污水污泥中汇集了许多污染物，因此污泥在燃煤电厂协同焚烧时，排放值中会明显增加额外的重金属输入（尤其是诸如汞等高挥发性物质），这是应将污水污泥燃煤电厂协同焚烧量限制在很小比例的原因之一；限制污水污泥协同焚烧量的另一原因是通常用作建筑材料的粉煤灰的质量必须符合相关建筑材料标准。污泥燃煤电厂协同焚烧如简单沿用《火电厂大气污染物排放标准》(GB 13223—2011),而不结合污泥的污染物特性（尤其在污泥中的重金属浓度普遍高于燃煤的重金属浓度的情况下），则存在电厂“稀释排放”或二口恶英类等其他未检测污染物的浓度超标的嫌疑。污泥电厂协同焚烧须注意污泥的“污染物”特性，而不可简单将污泥视作“生物质”，污泥的协同处理并非简单无条件的协同，而须全面遵循HSE原则。
Abstract:- Urban sewage sludge is a sink for a number of pollutants，and when the sewage sludge is co-incinerated in coal-fired power plants, the additional input of heavy metals (particularly highly volatile substances such as mercury) becomes a remarkable emission issue. This is one of the reasons that the sewage sludge co-incineration in coal-fired power plants should be limited to a very small amount. Another reason for limiting the co-incinerated sewage sludge quantity is the quality of the fly ash which is usually used as a building material, which must be evaluated by the relevant building material standards. Since the concentration of heavy metals in the sludge is generally higher than that in coal, the sludge co-incineration in coal-fired power plants may be suspected of excessive concentrations of power plants such as “dilution emissions” or other undetected pollutants such as dioxins when the Emission Standard of Air Pollutants for Thermal Power Plants (GB 13223-2011)is simply used without considering the pollutant characteristics of the sludge. The co-incineration of sludge in power plants must pay attention to the “contaminant” characteristics of the sewage sludge, rather than simply treating the sludge as a kind of “biomass”. The synergistic treatment of sludge is not a simple and unconditional synergy, and the HSE principle must be fully applied.
更新日期/Last Update: 2021-04-17
