基础排水论文 摘要:白腐真菌煤渣生物膜反应器处理模拟活性艳红染料废水,菌种A、B(担子菌纲)和C(云芝)最高脱色率分别达到4%、80%和95%。试验表明,共培养液类型对染料的基础排水论文脱色效果有明显影响,菌种C受共培养液的基础排水论文影响最为显著。白腐真菌煤渣生物膜反应器对实际的偶氮染料废水的脱色作用主要在初始阶段完成,而到72h后COD得以有效去除。当该废水的初始CODCr为6000mg/L时,经144h后,CODCr的去除率达98%。 关键词:废水处理 白腐真菌 染料 脱色 生物膜反应器
中图分类号:X788 文献标识码:A 文章编号:1009-2455(2000)06-0025-04
Tests for Decolorization of Wastewater from Dyestuff Production by Bio-Membrane Reactor Using Coal Cinder as White Rot Fungal Biofilm Supporter WANG Yong-huaHUANG Min-sheng DING Kun
Abstract:In the treatment of simulated Reactive Brilliant Red dyestuff by bio-membrane reactor using coal cinder as white rot fungal biofilm supporter the maximum decolorization rates with fungia,B (Basidiomycetes) and C were 84%,80% and 95% respectively.The test showed that the types of coinoculum had obvious effects on dyestuff decolorization results.Fungus C was most significantly affected by coinoculum.The decolorization of the actual wastewater from azo dyestuffs production by the bio-membrane reactor using coal cinder as white rot fungal biofilm supporter was mainly completed in the initial stage, while COD was effectively removed in 72 hours. When the initial CODCr in the said wastewater was 6000mg/L,the removal rate of CODCr reached 98% in 144 hours. Key words:waste water treatment;bio-membrane reactor using coal cinder as white rot fungal biofilm supporter;dyestuff;decolorization;biomembrane reactor
前言
偶氮染料包括酸性、活性、阳离子等染料类别,是合成染料的主要部分。每年染料生产和印染行业向环境中排放出大量的这类染料废水,造成了严重的环境污染;传统的废水处理方法对偶氮染料脱色和降解效果不佳,因此必须寻求一种高效而又经济的处理方法。 白腐真菌对木质素具有广谱的降解作用[1,2],而许多人工合成的染料、农药等与木质素具有相似的结构[3,4]因此白腐真菌降解这类污染物的研究倍受人们关注[5-7]。 白腐真菌对染料的脱色降解过程受到多种因素的影响,共培养液的类型和主要成分是其中一个重要方面。本实验采用国内外研究报道中三种最为常见的共培养液作为研究对象,考察三种白腐真菌对一种典型的偶氮染料——活性艳红X-3B的脱色效果。 生物膜法处理工业废水已有研究和应用,将白腐真菌附着于固定载体上生长成生物膜处理难降解有机工业废水具有生物量多、受搅拌影响小、生物膜泥龄长等特点[8]。本试验研究采用煤渣作为挂膜载体构建白腐真菌生物膜反应器,考察其在不同类型的共培养液条件下对活性艳红的脱色效果。
|