石油化工废水缺少氮、磷营养物质对污泥膨胀的影响  

Influences of petrochemical wastewater on sludge bulking due to N & P nutrient shortage

作　　者：丁峰[1] 彭永臻[1] 徐学清[2] 王淑莹[1] 

机构地区：[1]哈尔滨建筑大学市政环境工程学院,黑龙江哈尔滨150090 [2]青岛建筑工程学院环境工程系,山东青岛266033

出　　处：《工业水处理》2000年第12期11-14,共4页Industrial Water Treatment

基　　金：国家自然科学基金资助项目 !(编号 :5 97780 2 4)

摘　　要：进水底物中N始终充足 ,BOD5/TP大于 10 0 / 0 76 2时会明显出现丝状菌过量生长而引起的污泥膨胀。继续降低底物中的P含量 ,SVI基本不再继续上升而继续膨胀。如果保持P充足 ,则BOD5/TN大于 10 0 / 2 6 9时才会污泥膨胀 ,且此后随着底物中N含量的减少 ,污泥膨胀迅速加快 ,至BOD5/TN为 10 0 / 0 0 43时的SVI为2 6 0 7mL/ g。对于N、P同步缺少时 ,在BOD5/TN大于 10 0 / 2 6 9,BOD5/TP大于 10 0 / 0 6 0时开始发生污泥膨胀 ,继续降低进水中N和P的含量 ,未出现污泥加剧膨胀的现象。进水底物中缺少N、P(N和P)引起丝状菌污泥膨胀的同时 ,通常伴随着底物去除率的下降 ,表明多数对底物起主要分解作用的絮状菌的活性已明显降低。The activated sludge bulking due to some types of filamentous bacteria over growth appears obviously when BOD 5/TP is more than 100/0.762 during the stage with sufficient N in the substrate. SVI does not rise any more when P in the substrate decrease continuously. If P keeps sufficient, sludge bulking does not take place until BOD 5/TN is more than 100/2.69. Then sludge bulking goes on rapidly with the decrease of N in the substrate ( SVI =260.7 mL/g at the moment when BOD 5/TN is 100/0.043). Sludge bulking takes place when BOD 5/TN is more than 100/2.69 and BOD 5/TP is more than 100/0.60 during the stage with a synchronous shortage of N and P. Sludge bulking does not aggravate when N and P in the substrate decrease continuously. At the same time when the substrate is short of N and P and causes sludge bulking due to filamentous bacteria. the removal efficiency of the substrate declines. This shows that the activation of the floc bacteria which mainly decompose the substrate declines obviously.

关 键 词：营养物质 污泥膨胀 废水监测 石油化工 氮 磷 

分 类 号：X703[环境科学与工程—环境工程] X832