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莱钢焦化厂生物脱氮系统优化实践
引用本文:徐红,翟瑞津,刘民,王耀臣.莱钢焦化厂生物脱氮系统优化实践[J].山东冶金,2011(5):173-174.
作者姓名:徐红  翟瑞津  刘民  王耀臣
作者单位:莱芜钢铁股份有限公司焦化厂;
摘    要:莱钢焦化厂1#生物脱氮系统在运行过程中存在污泥脱水效果差、加碱成本高、二沉池污泥上浮等问题,通过实施带式浓缩压滤机代替螺压脱水机、液碱代替纯碱、刮泥机改造等技术措施,解决了上述问题。系统优化后运行稳定,沉降比由60%~70%降至20%~40%,加碱成本降低了38%,出水悬浮物由90mg/L降至30mg/L。

关 键 词:生物脱氮  带式浓缩压滤机  液碱  刮泥机

Optimization Practice of Biological Denitrification System of the Laiwu Steel's Coking Plant
XU Hong,ZHAI Rui-jin,LIU Min,WANG Yao-chen.Optimization Practice of Biological Denitrification System of the Laiwu Steel's Coking Plant[J].Shandong Metallurgy,2011(5):173-174.
Authors:XU Hong  ZHAI Rui-jin  LIU Min  WANG Yao-chen
Affiliation:XU Hong,ZHAI Rui-jin,LIU Min,WANG Yao-chen(The Coking Plant of Laiwu Iron and Steel Co.,Ltd.,Laiwu 271104,China)
Abstract:There were some problems in 1# biological denitrification system of Laiwu Steel's Coking Plant such as poor dewatering effect of sludge,high cost of sodium carbonate and floating upward of sludge in secondary sedimentation tank. The measurements of using thickener-press filter instead of screw press filter,using sodium hydroxide instead of sodium carbonate and transformation of sludge scraper were carried out. The questions were solved. The system ran stably and the indices were improved. SV30 was reduced f...
Keywords:biological denitrification  belt thickener-press filter  sodium hydroxide  sludge scraper  
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