摘要
以某制药厂排出的制药废水为处理对象,研究比较了混凝法、Fenton氧化法、臭氧氧化法、电解法和微电解法对废水的预处理效果。发现混凝法不能有效去除废水中的溶解性的有机物,微电解法和电解法对去除有机物有很好的效果,CODcr的去除率可达65%以上。Fenton氧化和微电解法对色度的去除效果较好,臭氧氧化和电解由于氧化还原反应可能生成一些新的物质,使得废水色度反而上升。除化学混凝法外,其他各种方法均能明显提高废水的B/C值,为后续的生化处理创造有利条件。
The comparisons of pretreatment methods of chemical coagulation, oxidation with Fenton agent, ozone oxidation, electrolysis and micro - electrolysis were experimental studied for the treatment of a kind of pharmaceutical wastewater containing high concentration organic compounds. Experimental result showed that chemical coagulation was not suitable for the remove of the soluble organic compounds in the waster water. On the other hand, the organic compounds were largely degraded by means of e- lectrolysis and micro - electrolysis treatment, and CODer removal was achieved above 65% for both the methods. The chroma of the wastewater was largely degraded after the treatments by both methods of oxidation with Fenton agent and micro - electrolysis. Meanwhile the chroma of the wastewater was obviously increased after the treatments by both methods of ozone oxidation and elec- trolysis, which was ascribed to the formation of new chrom - compounds. It was also found that the B/C value was significantly increased by all tested methods but chemical coagulation, which is beneficial for sequent biological treatment process.
出处
《环境科学与管理》
CAS
2009年第7期71-74,共4页
Environmental Science and Management
关键词
高浓度制药废水
预处理
混凝沉淀
FENTON氧化
臭氧氧化
电解
微电解
pharmaceutical wastewater
pre - treatment methods
coagulation
oxidation with Feton
ozone oxidation
electrolycis
micro - electrolysis
