[1]胡維杰.城鎮(zhèn)污水污泥燃煤電廠協(xié)同焚燒技術(shù)解析[J].中國給水排水,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.
城鎮(zhèn)污水污泥燃煤電廠協(xié)同焚燒技術(shù)解析
中國給水排水[ISSN:1000-4062/CN:12-1073/TU] 卷: 第37卷 期數(shù): 2021年第8期 頁碼: 24-31 欄目: 出版日期: 2021-04-17
- Title:
- Analysis on the Urban Sewage Sludge Co-incineration Technology of Coal-fired Power Plants
- 關(guān)鍵詞:
- 城鎮(zhèn)污水污泥; 摻燒; 電廠
- Keywords:
- urban sewage sludge; co-incineration; power plant
摘要:- 城鎮(zhèn)污水污泥中匯集了許多污染物，因此污泥在燃煤電廠協(xié)同焚燒時，排放值中會明顯增加額外的重金屬輸入（尤其是諸如汞等高揮發(fā)性物質(zhì)），這是應(yīng)將污水污泥燃煤電廠協(xié)同焚燒量限制在很小比例的原因之一；限制污水污泥協(xié)同焚燒量的另一原因是通常用作建筑材料的粉煤灰的質(zhì)量必須符合相關(guān)建筑材料標準。污泥燃煤電廠協(xié)同焚燒如簡單沿用《火電廠大氣污染物排放標準》(GB 13223—2011),而不結(jié)合污泥的污染物特性（尤其在污泥中的重金屬濃度普遍高于燃煤的重金屬濃度的情況下），則存在電廠“稀釋排放”或二口惡英類等其他未檢測污染物的濃度超標的嫌疑。污泥電廠協(xié)同焚燒須注意污泥的“污染物”特性，而不可簡單將污泥視作“生物質(zhì)”，污泥的協(xié)同處理并非簡單無條件的協(xié)同，而須全面遵循HSE原則。
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
