LU Tao,ZHU Bao fei,SHI Chun mei,et al.Test Run of Sewage Sludge Carbonization System and Feasibility Analysis of Sludge Carbon Land Use[J].China Water & Wastewater,2018,34(21):108-111.
污泥碳化系統(tǒng)試運(yùn)行及污泥炭回歸土壤可行性分析
- Title:
- Test Run of Sewage Sludge Carbonization System and Feasibility Analysis of Sludge Carbon Land Use
- 文章編號(hào):
- 1000-4602(2018)21-0108-04
- 關(guān)鍵詞:
- 市政污泥; 碳化; 清潔性; 能耗; 養(yǎng)分元素?
- Keywords:
- sewage sludge; carbonization; cleanliness; energy consumption; nutrient
- 分類(lèi)號(hào):
- TU992.3
- 文獻(xiàn)標(biāo)志碼:
- C
- 摘要:
- 介紹了10 t/d污泥碳化系統(tǒng)組成及運(yùn)行工藝，分析了該系統(tǒng)的運(yùn)行能耗及清潔性，在考察污泥炭相關(guān)性質(zhì)的基礎(chǔ)上對(duì)污泥炭回歸土壤進(jìn)行了深入討論。運(yùn)行數(shù)據(jù)表明，以含水率為80%、干基低位熱值為3 871.5 kJ/kg的市政污泥為原料，系統(tǒng)平均熱能消耗為2 728.34 MJ/t，其中污泥自身可提供能耗287.52 MJ/t，外部輸入能耗為2 440.82 MJ/t，電能消耗為79.2 kW·h/t。煙氣經(jīng)除塵、洗滌處理，即可實(shí)現(xiàn)達(dá)標(biāo)排放，實(shí)現(xiàn)污泥清潔性處置。污泥炭中重金屬含量符合農(nóng)用泥質(zhì)、園林綠化用泥質(zhì)以及土地改良用泥質(zhì)標(biāo)準(zhǔn)要求。污泥炭中總養(yǎng)分含量為1.94%，低于園林綠化用泥質(zhì)及農(nóng)用泥質(zhì)標(biāo)準(zhǔn)要求，優(yōu)于土地改良用泥質(zhì)要求。該工藝處理的污泥炭均可回歸土壤，一方面實(shí)現(xiàn)了污泥最終消納，另一方面實(shí)現(xiàn)了養(yǎng)分元素回收利用。
- Abstract:
- A sewage sludge carbonization system and operational process was introduced. The operation energy consumption and the emission of pollutants were analyzed. Based on the investigation of sewage sludge carbon properties, the feasibility of sewage sludge carbon land use was discussed. The moisture content of sewage sludge feedstock was 80%, and its low calorific value was 3 871.5 kJ/kg. The average heat energy consumption of the system was 2 728.34 MJ/t, in which the syngas derived from sewage sludge was 287.52 MJ/t, the external heat quantity required was 2 440.82 MJ/t, and the power consumption was 79.2 kW·h/t. The exhaust gas reached the national standard through the dedusting system and the washing system. The heavy metals contents of sewage sludge carbon reached the control standards for agriculture use, afforestation in gardens or forest, and land improvement. The total nutrients content of the sewage sludge carbon was 1.94%, which was below the control standards for agriculture use, afforestation in gardens or forest, but was beyond the control standards for land improvement. Therefore, the sewage sludge carbon is suitable for land use and nutrients recycling.
參考文獻(xiàn)/References:
［1］張千豐,王光華. 生物炭理化性質(zhì)及對(duì)土壤改良效果的研究進(jìn)展［J］. 土壤與作物,2012,1(4):219-226.? Zhang Qianfeng,Wang Guanghua. Research progress of physiochemical properties of biochar and its effects as soil amendments［J］. Soil and Crop,2012,1(4):219-226(in Chinese).?
［2］Yuan H R,Lu T,Wang Y Z,?et al?. Sewage sludge biochar：Nutrient composition and its effect on the leaching of soil nutrients［J］. Geoderma,2016,267:17-23.
［3］魯濤,袁浩然,王亞琢,等. 熱解溫度對(duì)污泥生物炭穩(wěn)定性及養(yǎng)分淋溶特性影響［J］. 化工學(xué)報(bào),2015,66(7):2664-2669.? Lu Tao,Yuan Haoran,Wang Yazhuo,?et al?. Influence of pyrolysis temperature on biochar stability and leaching properties of nutrients contained in biochar［J］. CIESC Journal,2015,66(7):2664-2669(in Chinese).
［4］郭廣慧,楊軍,陳同斌,等. 中國(guó)城市污泥的有機(jī)質(zhì)和養(yǎng)分含量及其變化趨勢(shì)［J］. 中國(guó)給水排水,2009,25(13):120-121.? Guo Guanghui,Yang Jun,Chen Tongbin,?et al?. Concentrations and variation of organic matter and nutrients in municipal sludge of China［J］. China Water & Wastewater,2009,25(13):120-121(in Chinese).
備注/Memo
作者簡(jiǎn)介：魯濤（1984- ），男，陜西富平人，博士，工程師，主要從事市政污泥、含油污泥以及生活垃圾等固體廢棄物處置技術(shù)研發(fā)工作。
E-mail:casc_lutao@126.com
收稿日期：2018-01-12
來(lái)源：http://zggsps.paperonce.org/oa/DArticle.aspx?type=view&id=201821021
