發(fā)布時(shí)間：2018-12-12 03:37

【摘要】：采用活性焦吸附—曝氣生物濾池(BAF)工藝對(duì)煤氣化廢水生化出水進(jìn)行深度處理。在活性焦投加量2g/L、吸附時(shí)間2 h、BAF生化停留時(shí)間4 h的條件下,總COD去除率為85.4%,最終出水平均COD為45.2 mg/L,滿足后續(xù)雙膜法回用工藝要求(COD≤50 mg/L)�；钚越箤�(duì)致色的大分子有機(jī)物具有較好的吸附效果,吸附后廢水的色度從300倍降至60倍,同時(shí)耗氧速率加快,可生化性提高。活性焦的吸附以物理吸附為主,吸附出水沒(méi)有急性毒性。三維熒光光譜顯示:各單元對(duì)于酚類的去除均有貢獻(xiàn),小分子組分中的酚類幾乎全被去除。
[Abstract]:Activated coke adsorption-biological aerated filter (BAF) process was used to treat biochemical effluent from coal gasification wastewater. Under the conditions of 2 g / L active coke dosage, 2 h adsorption time and 4 h biochemical residence time, the total COD removal rate was 85.4%, and the average COD of the final effluent was 45.2 mg/L,. Meet the requirements of the following double membrane reuse process (COD 鈮，

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