| 澄清灰水化学需氧量相关因素的实验研究 |
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| 引用本文： | 冯辉,常爱玲,王保生,冯亚娜. 澄清灰水化学需氧量相关因素的实验研究[J]. 华北电力大学学报(自然科学版), 2001, 28(4): 84-86 |
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| 作者姓名： | 冯辉 常爱玲 王保生 冯亚娜 |
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| 作者单位： | 华北电力大学环境工程系,河北,保定,071003 |
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| 摘 要： | 以某电厂实际灰水系统和取自６个电厂的不同灰样为研究对象，实验研究了灰水沉降时间、取样深度以及飞灰烧失量对澄清灰水ＣＯＤ值的影响，发现飞灰烧失量是影响澄清灰水ＣＯＤ值的主要因素，二者间有较好的线性关系，其相关系数可达０．９３～０．９５，指出了改善锅炉的燃烧状态以及足够的灰水澄清时间和低速外排是避免ＣＯＤ超标的关键。
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| 关 键 词： | 澄清灰水 COD 粉煤灰 烧失量 悬浮粒子 |
| 文章编号： | 1007-2691(2001)04-0084-03 |
| 修稿时间： | 2001-03-26 |
Experimental Study on Relevant Influencing Factors of COD in Clear Ash Water |
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| FENG Hui,CHANG Ai-ling,WANG Bao-sheng,FENG Ya-na. Experimental Study on Relevant Influencing Factors of COD in Clear Ash Water[J]. Journal of North China Electric Power University, 2001, 28(4): 84-86 |
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| Authors: | FENG Hui CHANG Ai-ling WANG Bao-sheng FENG Ya-na |
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| Abstract: | Dependence of COD in clear ash water on the subsidence time of particles, the sampling depth and the unburned carbon in ash are studied with the samples of some power plants. It is found that COD value is in closely related to UBC in ash and liner relationship between them is obtained. Correlation coefficients can come up to 0.93-0.95. The value of COD in overflow ash water can be decreased by improvements of boiler combustion, enough subsidence time and lower flow velocity of ash water. |
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| Keywords: | clear ash water COD fly ash unburned carbon suspended particles |
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