发制品企业废水处理工程设计实例

Engineering design example of treatment of wastewater from a hair products corporation

针对发制品生产废水中含有较多不易生物降解的色度高,有机物、氨氮较高的特点,采用强化预处理和水解-接触氧化的治理工艺进行处理。在进水COD、BOD5、NH3-N的质量浓度分别为704～859、216～317、146～182mg/L和色度为2134～2608倍的条件下,经处理后出水COD、BOD5、NH3-N的质量浓度分别为85～126、24.1～25.9、19.0～22.6mg/L、色度为56～66倍,该工艺处理效果较好,运行稳定,出水达到《污水综合排放标准》(GB8978-1996)表4中的二级标准。

In view of the fact that the wastewater from hair products production contains many hard-degradable organic matters and with high chroma and ammonia nitrogen concentration, strengthening pretreatment and hydro- lysis-contact oxidation were used in the wastewater treatment. Under the condition that, the mass concentration of COD, BODs, NH3-N were 704 - 859 mg/L, 216 - 317 mg/L, 146 - 182 mg/L respectively, the chroma was 2 134 - 2 608 times, the mass concentration of COD, BODs, NH3-N in the effluent water after the treatment were 85 - 126 mg/L, 24.1 - 25.9 mg/L, 19.0 - 22.6 mg/L respectively, and the chroma was 56 - 66 times, the treatment effect by the said process was good, the operation was stable, and the effluent water quality met the specification for grade 2 in tab 4 of intergrated wastewater discharge standard（GB 8978-1996）.