铁炭微电解法处理黄连素废水应用研究

黄连素废水成分复杂,COD高且难降解,废水可生化性差,对环境造成较大污染。沈阳某制药总厂黄连素废水采用深井曝气工艺处理。该方法存在需要大量清水稀释、运行成本高、处理效果不佳等缺点。内电解的基本原理是利用铁屑中的铁和炭组分构成微小原电池的正极和负极,以充入的废水为电解质溶液,发生氧化-还原反应,形成原电池。利用内电解预处理黄连素废水,COD除去率高达93.1%,并可提高废水的可生化性,废水的的BOD5/CODCr值由处理前的0.08提高到0.41,为后续生化处理和处理后废水达标排放奠定了基础,且运行成本低,易于管理。

Study on Application of Internal Electrolysis to Treat Berberine Wastewater

The composition of berberine wastewater is complicated with high concentration of COD. Because it is hard to be degraded by biochemical treatment, berberine wastewater causes serious environmental pollution . Northeast General Phamaceutical Factory treated berberine wastewater by the process of deep well aeration. However, the process needs much water to dilute and is hard to be managed with expensive operation cost. The basic principle of the internal electrolysis is to make use of the iron and carbon constituents in iron filings, forming anode and cathode of small batteries, and the berberine wastewater is conducted as electrolyte, then oxidation - reduction reaction occurs. The internal electrolysis is used for pretreatment of berberine wastewater, the removal rate of COD is up to 93.1%. Moreover, the internal electrolysis may improve the ability of the biochemical treatment on the berberine wastewater： the ratio of BOD5/CODcr rises from 0.08 to 0.41, which is in favor of sequent biochemical treatment to meet the disposal standard and decrease the operational cost. And its management is convenient.