粉末活性炭强化SBR法处理有机化工废水应用研究

Application study of PAC strengthened SBR technic treating organic-chemical wastewater

在实际工程中，有机工业废水水质、水量变动幅度较大，经常含有毒害性物质，采用常规SBR工艺容易出现污泥膨胀．在对PAC（粉末活性炭）的吸附特性进行考察的基础上，采用粉末活性炭强化的SBR工艺对原有SBR工艺进行强化，近两个月的实际运行结果表明，CODcr去除率达90．2％-98．5％，BOD，去除率达91．8％。98．4％，NH，-N去除率达83．4％-94．8％，各项处理效果均优于SBR工艺．通过对比PAC—SBR工艺对CODcr，BOD，去除效果的改善作用，在一定程度上可以说明微生物与PAC存在相互加强的关系是PAC—SBR工艺对有机物去除的改善作用机理．此外污泥性能得到改善，有效避免了污泥膨胀、泡沫等异常现象的发生，因此对于现有的SBR工艺是一种简单易行、灵活高效的改进方法．

Organic industry wastewater usually changes a lot in quality and quantity in wide range. Sometimes poison material is contained. So the sludge - swell often happens in general SBR technic. On the base of experiment to test adsorption characteristic of PAC （ power active carbon）, PAC - SBR technic was adopted to substitute. Results indicated that removal rate of COD, could reach 90. 2% -98.5%, BOD5 91.8% - 98.4% and NH3 -N 83.4% -94. 8%, which were prior to SBR technic. Contrast the differential improvement to CODor and BOD5, the conclusion could be obtained that the mechanism of PAC - SBR to reinforce organic removal was the mutual -enhancement relation between PAC and microorganism. Besides, performance of sludge was amended and the sludge - swell and foam were abstained effectively. So it is a simple and high -efficient upswing method to replace general SBR technic.