论文部分内容阅读
經过机械法預处理的污水,还含有乳化及溶解的石油及石油产品,用生物化学法可以除去这些残余有机物質。本方法是將含油污水与生活污水及自来水混合,再加活性污泥,在曝气池与再生器中进行淨化。試驗所用的曝气設备是高2米,直径10厘米的玻璃管,再生器的尺寸也相同。直立式的二次沉淀器直径35厘米,高48厘米。空气經过底部的分配板通入,分配板直径50毫米,厚6—7毫米。該曝气装置由1957年10月到1958年12月30日昼夜运轉。此装置的运轉是以生物与化学指标控制的。在处理生产污水时,要测定其生化处理耗氧量,过錳酸鉀氧化度及重銘酸鉀氧化度,含油量、含氨量及气化物含量。电脫盐装置生产污水的試样是由炼油厂的拣油池后取得的,其分析数据如下(毫克/升):
After mechanical pretreatment of sewage, but also contains emulsified and dissolved petroleum and petroleum products, biochemical methods can remove these residual organic matter. The method is to mix oily wastewater with domestic sewage and tap water, add activated sludge, and purify the aeration tank and regenerator. The aeration equipment used for the experiment was a glass tube 2 meters high and 10 centimeters in diameter with the same regenerator size. Upright secondary precipitator diameter of 35 cm, 48 cm high. Air passes through the distribution plate at the bottom of the distribution plate diameter of 50 mm, 6-7 mm thick. The aeration device from October 1957 to December 30, 1958 day and night operation. The operation of this unit is controlled by biological and chemical indicators. In dealing with the production of sewage, to determine the biochemical treatment of oxygen consumption, potassium permanganate oxidation degree and rebaurate potassium oxidation degree, oil content, ammonia content and gasification content. The electrical desalination plant samples for the production of sewage were obtained after the oil pick-up from the refinery and its analytical data are as follows (mg / L):