几株天牛肠道菌用于造纸废水处理的研究开题报告

1. 研究目的与意义（文献综述）

the pulp and paper consume large quantities of fresh water.to produce 1 million tons of bleached kraft pulp mill, a plant can use morethan 150 million litres of water per day, and in a further paper mill. theanaerobic treatment is restricted to the heavy effluents of biodegradableorganic substances (empirical evidence: cod is greater than or equal to 2 000mg / l) for producing.woodis decomposed by a variety of biological agents, including fungi, bacteria, andinsects. fungi colonize wood and degrade cell wall components to form brown,soft, or white rot. brown-rot fungi, which degrade primarily the polysaccharidecomponents of wood, leave a lignin framework. the rate and extent of lignin,cellulose, and hemicelluloses removal varies among species of white-rot fungi. mostof funji plant and insecte can produce the enzyme laccase, and he has thecapacity to break down the lignin.

a preliminary study of laboratory strains screened from theintestinal flora and saprophytic wood beetles in the degradation ability ofwood fiber board. so this paper intends to isolated from several strains withlignocellulose degradation ability of intestinal bacteria and saprophytic woodbeetles comparison and domestication. after we observe the main pollutants ofpapermaking wastewater the degradation ability, intended for the constructionof composite agent with papermaking wastewater treatment function, combinedwith other physical and chemical methods, can be used for purificationtreatment of papermaking wastewater.

bacteriacan directly attack wood to cause erosion, cavitation, and tunneling patternsof deterioration. bacteria may have a synergistic or antagonistic effect onother microorganisms that inhabit wood。control treatments receiving only water lost 11% ofextractives due to the growth of naturally occurring microorganisms. bacterialstrains were isolated from spruce wood chips and their ability to reduce thecontent of wood extractives was studied.

2. 研究的基本内容与方案

2、研究（设计）的基本内容、目标、拟采用的技术方案及措施

2.1基本内容

制浆造纸废水的主要污染物包括木素及其衍生物、半纤维素、寡糖、有机酸、色素及无机填料等物质，产漆酶微生物对造纸废水处理具有一定的优点，论文拟对几株筛选自天牛肠道菌群的菌株进行造纸废水处理研究，观察其降解造纸废水有机污染物的效能。1）菌株筛选及驯化培养，以逐级预处理造纸废水或单一有机污染物筛选具较强适应性菌株，并逐级驯化；2）单菌株处理效果观察，以codcr和色度为指标检测单菌株的处理效果；3）初步进行菌株组合构建复合菌剂，进行降cod和脱色效果观察。

3. 研究计划与安排

refer to not less than 12 articles on thelaccase producing microorganism and papermaking wastewater biochemicaltreatment method of literature, the literature english not less than 3,complete the opening report;

screening and domestication of 2 strainsfrom several strains of intestinal longicorn papermaking wastewater treatmentstep by step to pre or single organic pollutants strains were screened anddomesticated by;

3 strains of papermaking wastewatertreatment effect was observed, and the strains were detected and thecombination efficiency, preliminary construction of complex microbialcommunity;

4. 参考文献（12篇以上）

[1]smook,g.a.,1989:manueldutechnicienetdelatechnicienneenpatesetpapiers,lreédition(atlanta,géorgie,technicalassociationforthepulpandpaperindustry).

[2]milham,s.,jr.,1976:neoplasiasinthewoodandpulpindustry,annalsofthenewyorkacademyofsciences,vol.271,pp.294-300.

[3]1993:selectedoccupationalfatalitiesrelatedtopulppaperandpaperboardmillsasfoundinreportsofoshafatality/catastropheinvestigations(pb93-213502)(washington,dc).