摘要
本文介绍了新近开发的ＪＡＺ型絮凝剂对水样中活性艳蓝ＫＮ—Ｒ，直接深棕Ｍ，酸性墨水蓝Ｇ，酸性媒介藏青ＡＧＬＯ，直接耐晒蓝Ｂ２ＲＬ，弱酸性黄ＨＧ等代表性染料的凝集效果及其影响因素。酸性墨水蓝的脱色随ｐＨ值增加而增加，其他染料的最佳脱色区从酸性到中性。在染料起始浓度为１００ｍｇ／Ｌ～５００ｍｇ／Ｌ范围内，酸性媒介藏青的Ｋ值（色度降至８０时絮凝剂投药量对染料的比值）为２左右，其他染料的ｋ值在１．０以下。直接耐晒蓝和活性艳蓝配水絮凝后ＣＯＤｃｒ的去除率分别达到８５％和７６％，直接黑染料生产废水的ＣＯＤｃｒ去除率最高可达到５０％。
This paper presents the flocculations of typical dyes of reactive brilliant blue KN R,direct dark brown N,acid ink blue G,acid mordant dark blue AGLO,direct light resistant bule B2RL and weak acid yellow HG in aqueous samples by a new flocculant recently developed in our laboratory and the effects of several factors on decolorizing efficiency.Optimum pH of decolorization occurred in acid to neutral (or weak alkaline)media except acid ink blue in which the decolorization increased with increasing pH of the solution.In the range of 100mg/L￣500mg/L of initial concentration of dyes,K values (the ratio of dosage of flocculant to dye when the ramained colority in the supernatant dropped to 80 from original level) were kept under 1.0 except acid mordant dark blue which K value was kept near 2.After flocculation,the maximum removal of CODcr were 85% and 76% respectively for direct light resistant blue and reactive brilliant blue dyes,and was 50% for the direct black dye production wastewater.
出处
《城市环境与城市生态》
CAS
CSSCI
CSCD
1997年第2期1-3,共3页
Urban Environment & Urban Ecology
基金
国家自然科学基金
