Abstract:
The effluent of the conventional system treating the wastewater by the biocontact oxidation process cannot satisfy the national standards of sewage discharge and is above 400 mg/L and 200 multiple for COD and colority respectively under the condition of COD 817～1 930 mg/L, colority 229～800 multiple and SS 542～1 000 mg/L for the wastewater being biorefractory and varying greatly in a velvet printing and dyeing plant. The old biological treatment system is reformed in anoxic/two-grade aerobic biological process. The effluent of the reformed system can meet the requirements of first grade standards of national sewage discharge with the COD 69 mg/L, colority 40 multiple and SS 17 mg/L.
Key words:
printing and dyeing wastewater,
anoxic/two-grade aerobic process,
biorefractory wastewater
摘要：
某丝绒印染废水难生化降解、水质多变，CODCr、色度和SS分别为817～1930mg/L、229～800倍和542～1000mg/L.采用传统的生物接触氧化-气浮组合处理工艺系统，出水CODCr和色度分别在400mg/L和200倍以上，远不能达国家污水排放标准；应用缺氧/二级好氧废水处理新工艺对原生化系统进行改造后，出水CODCr、色度和SS分别小于69mg/L,40倍和17mg/L,达国家太湖流域污水一级排放标准
关键词:
印染废水,
难降解有机物,
缺氧／二级好氧（A／O~2）工艺,
生物处理
Xiao Yutang. STUDY ON PROJECT APPLICATION OF THE NEW PROCESS IN TREATING THE BIOREFRACTORY WASTEWATER FROM A VELVET PRINTING AND DYEING PLANT[J]. INDUSTRIAL WATER TREATMENT, 1999, 19(3): 14-16.
肖羽堂, 许建华, 陈伟, 李敏, 张东, 王冠平, 吴玉民, 王立庆, 吴昊. 难生化降解的某丝绒印染废水处理新工艺(A/O2)工程应用研究[J]. 工业水处理, 1999, 19(3): 14-16.