难降解物质

保留在反应器内的大分子难降解物质和微生物代谢产物将对NH3-N的去除产生一定的影响。

The big numerator material and microorganism metabolite Retain in member bioreactor would have certain influence of degradation for NH3-N.

结果表明，单一复合生物反应器能有效降解焦化废水中的COD及NH4+&N等难降解物质。

It is found that hybrid biological reactor works well for the coke-plant wastewater treatment in terms of COD , NH ~ + _4 & N and other refractory organic compounds removal efficiency .

G-BAF处理后出水中的有机物以羧酸和酮类物质为主，而CAS处理后出水中仍含有较多的难降解物质。

The effluent of G-BAF mainly contains carboxylic acid and ketones , while the effluent of CAS still contains lots of refractory organic compounds .

GC/MS分析结果表明，Fenton试剂氧化改变了酵母废水中多酚类化合物、焦糖化合物及美拉德色素等难降解物质的结构，使酵母废水容易降解。

The results of GC / MS analysis indicate that the chemical oxidation by Fenton reagent changes the structures of some refractory substances such as caramel , melanoidins and polyphenol , thus making the biodegradation feasible .

染料废水具有组成复杂、色度高，COD、TOC含量高，悬浮物多，水质、水量变化大，难降解物质多等特点，是难处理工业废水之一。

Dye wastewater is characterized by complicated components , strong color , highly fluctuating pH , high COD , TOC concentration and suspend solids , low biodegradability , and widely varied quality and quantity , so it has been rather difficult to treat dye wastewater .

处理生物难降解物质的有效方式&共代谢

An Efficient Way for Biodegradation of Refractory Organic Compounds : Cometabolism

微生物群落在难降解物质生物降解中的作用

Importance of microorganism community for degradation of refractory compounds

优势菌-膜生物反应器处理洗车废水难降解物质的研究

The study on treatment of UNDEGRADATIVE substance in car washing wastewater by superior strain membrane bio reactor

污水水质的日益复杂和更多难降解物质的出现，使传统的污水处理剂已难以满足现今污水处理的要求。

The traditional flocculants are difficult to deal with evolving complexity and diversity of ingredients in current sewage .

以焦化废水为研究对象，采用不同规格的球形轻质陶粒作填料，在厌氧生物滤池中对焦化废水进行了处理，目的在于加强对难降解物质的去除及部分水解功能。

Coke plant wastewater was treated by the composite anaerobic biological filters , which was packed with expanded spherical clay .

皮革废水难降解物质含量高，且含有大量的悬浮物质，对环境污染很大。

The tannery wastewater contains difficult degradation substances with high strength and large number of suspended substances , seriously polluting the environment .

废水中难降解物质生物降解的有利因子

The Advantageous Factors for the Biodegradation of Refractory Organics in Waster Water Characteristics of biodegradation of refractory organic in coke plant wastewater

因此，焦化废水的深度处理，特别是难降解物质的去除，已经成为亟待解决的问题。

So , the advanced treatment of coking wastewater , especially the removal of refractory organics has become an urgent environmental problem .

含染料废水具有难降解物质多、有机物成分复杂、浓度高、毒性大等特点，是国内外公认的难处理工业废水之一。

Dyestuffs wastewater is featured by complicated organic matter composition , high density and toxicity , and is difficult to degradate bio-chemically .

分析了微生物群落在难降解物质生物降解中的重要作用。指出微生物群落可通过协调利用底物、共代谢污染物质、转移中间代谢物质等途径对难降解物质进行降解。

Microorganism community can degrade refractory compounds in the way of making good use of substrate , co-metabolism , transforming intermediary degradative products .

染料是典型的精细化工产品，其废水具有有机物浓度高、组分复杂、难降解物质多、色度大、有毒等特点。

Dye is a kind of typical fine chemical products , wastewater of which is characterized with high concentration and complication of organic components , more difficultly reduced substances , high colority , poison etc. more than 80 percent dyes are azo dye .

塑料是一种在自然中极难降解的物质。

Plastic is a substance that hardly decomposes in the nature .

纳污港湾难降解污染物质的有限水体混合迁移摸式&厦门港污染物质的单纯混合模式

Finite element water mixing model of persistent pollutants in bay & a pure mixing model for Xiamen Bay

在预处理和脱色后，仍然存在很多难生物降解物质，如残余染料、染色助剂、酸碱等。

After the preprocessed and discolored , there are a lot of difficult biodegradable substances . such as the residual dyestuffs , the dyeing auxiliaries , acid-base .

氯代烃属于难生物降解物质，二沉池中氯代烃浓度的回升表明微生物吸附的氯代烃发生解吸而进入液相。

Chlorinated hydrocarbon belonged to hard-biodegraded substances , and their increasing liquid concentrations in secondary clarifier showed that some absorbed by microbe could come into liquid phase .

通过水解（酸化）过程，将其中大分子、难生物降解物质转变为小分子、易生物降解物质，提高废水的可生化性，为后续处理创造有利条件；

During the course of hydrolysis acidification , the macromolecular and bio-refractory organisms in wastewater were degraded into micro-molecular and soluble substances so as to enhance the biodegradability of wastewater , which could benefit the subsequent processes .

印染废水中含有大量的难生物降解物质，增设预处理工艺可降低废水有机物含量，并提高废水的生化性。

Printing and dyeing wastewater contains large amount of matters which are hard to be biodegraded , the establishment of pretreatment process can reduce the content of organic matters in wastewater and improve the biodegradability of wastewater .

染化废水污染物种类多，毒性大、化学需氧量，ρ（CODcr）高，且大部分是生物难降解的污染物质，严重污染环境；

Various waste water from dye - stuffy could badly pollute environment with their high toxicity and p ( CODCr ) .

用H2O2同Fe2+结合的Fenton试剂处理有机废水是一种经典的催化氧化法，这种方法适合于处理废水中高浓度、难降解的有机物质。

It is a typical catalytic oxidation method to treat the organic waste water using Fenton reagent which is H2O2 combined with Fe2 + . The method is suitable for treatment of organic matters in the waste water which are of high concentrations and not easily degraded .

采用生物共代谢技术降解这些难生物降解的物质，对于环境保护具有重要意义。

Cometabolism is used to deal with such substance which is of great importance for environmental protection .

苯酚在工业废水中广泛存在，是难降解的有毒物质，对生物和环境的危害很大。

Phenol is a kind of toxic substance , which extensively exists in industrial waste water and is difficult to be removed , inflicting huge harm to organisms and the environment .

焦化废水由于含有大量的难生物降解与有毒物质，因而成为公认难处理工业废水之一。

Because coke sewage contains lots of hard-biodegraded and toxicant substances , it is considered one of the industrial waste water which is difficult to purify .

然而，水中微量难降解的有毒有害物质被不断发现，单独臭氧对该类物质的去除效果有限，催化剂的引入能够显著提高臭氧体系对该类物质的降解效率。

However , poisonous and harmful trace refractory organics are found constantly . Removing such matters by ozone alone is limited so that catalysts are introduced into this system to improve removal efficiency .