课程文献中心 更多>>

关键词： 生物反应器   不定根   皂苷   东北刺人参  

摘要： 为了优化东北刺人参不定根反应器培养体系,获得较高的人参皂苷含量,以东北刺人参无菌苗诱导得到的不定根为试验材料,研究生物反应器不定根培养过程中,蔗糖浓度、生长素IBA浓度、接种量和通气量对皂苷积累的影响。比较3种培养方式发现,生物反应器培养比振荡培养和固体培养更有利于不定根中皂苷积累。在生物反应器培养过程中,随着蔗糖浓度的增加,皂苷含量明显提高,在蔗糖质量浓度为50 g/L达到最大;IBA质量浓度为3 mg/L时最利于皂苷积累;接种量为5 g/L时不定根中皂苷含量和生产量最多,而接种量超过5 g/L不利于皂苷积累;通气量75 m L/min时,皂苷含量达到最高。因此,利用生物反应器培养不定根来生产皂苷,为资源短缺的东北刺人参产品开发提供了新方法,对今后的东北刺人参产品生产具有重要意义。

关键词： 家蚕生物反应器   重点实验室   生物医药   浙江省   临床治疗   恶性肿瘤   靶向治疗   基金资助  

摘要： 浙江省家蚕生物反应器和生物医药重点实验室在MDM2-p53信号轴靶向治疗研究方面取得重要进展.对拥有突变体p53的恶性肿瘤临床治疗管理提供了新的策略,为HDACi靶向MDM2-p53信号轴的临床测试提供了理论支撑.该课题研究得到浙江省高校生物学重中之重（一级）学科与开放基金资助.

关键词： 膜生物反应器   膜污染   盐度   溶解性微生物产物   胞外聚合物  

摘要： 进水盐度对膜生物反应器(MBR)的运行效能影响显著,尤其是进水含盐量为5 g/L时,明显恶化了污泥可滤性,膜污染速率加快;MBR混合液中溶解性微生物产物(SMP)和胞外聚合物(EPS)含量随钠离子浓度变化而变化,其中SMP中蛋白质含量与钠离子浓度密切相关;与紧密结合态EPS(TB)相比,钠离子含量对松散结合态EPS(LB)浓度的影响更大;不同盐度对COD及NH4+-N影响不明显,系统对COD及NH4+-N的去除效果稳定,分别保持在92%及94%以上,高盐度对MBR总磷去除率降低明显。

关键词： 植物生物反应器   疫苗   药用蛋白  

摘要： 随着分子农业的迅猛发展,植物生物反应器应用日益广泛。本文就现阶段利用植物生物反应器生产蛋白制剂的现状进行了综述,并对此项技术的发展前景进行了展望。

关键词： Municipal solid waste   Leachate recirculation   Waste settlement   Aerobic condition  

摘要： A tank of size 56cm 56cm 56cm is constructed using Perspex sheet supported by an aluminum frame. The reactor is equipped with 6 ports; 3 ports are used for drainage and collection of leachate, while the other 3 ports are used to recirculate the leachate collected, provide constant air flow in bioreactor and to check the temperature of the bioreactor. A 6 cm layer of aggregates is used as the bottom layer of the reactor to avoid the clogging of the drainage pipes and regulate the leachate formed in the drainage pipes. The Municipal Solid Waste used in the reactor is a mixture of organic (25kg), paper (4kg), plastic (4 kg) and metal (2 kg) waste to form a layer of 25 cm. The total weight of the msw layer used in the experiment is 35 kg having a density of 446.5 kg/m 3. An air pump having a flow rate 3L/min is used to create aerobic condition inside the bioreactor. Leachate produced by the msw layer is collected and tested after every 14 days from the start of the experiment. One liter of leachate is tested for testing of pH, BOD 5 /COD ratio. In the present study, the effect of leachate recirculation under aerobic conditions on degradation of municipal solid waste is determined. The COD and BOD 5 reduction is 86.6% and 98.1%. This shows that the leachate recirculation has increased the degradation of MSW. At the end of the experiment settlement of the waste is found to be 23.4 cm. It shows the consolidation of the msw layer and the reduction in the leachate production with the progress of the experiment. The leachate production rate is found to decrease from 5000 mL/d to 149 mL/d in 171 days. A variation in the temperature of the reactor is also observed with time.

摘要： The wastewater from industries varies so greatly in both flow and pollutional strength. In general, industrial wastewaters may contain suspended, colloidal and dissolved solids. In addition, they may be either excessively acid or alkaline and may contain high or low concentrations of coloured matter. These wastage may contain inert, organic or toxic materials and possibly pathogenic bacteria. These wastes may be discharged into the sewer system provided they have no adverse effect on treatment efficiency or undesirable effects on the sewer system. It may be necessary to pretreat the wastes prior to release to the municipal system or it is necessary to a fully treatment when the wastes will be discharged directly to surface or ground waters. The technologies discussed in the project are Membrane Bio-reactor (MBR), Activated Sludge Process (ASP) and Moving Bed Bio-film Reactor (MBBR). Membrane Bio-reactor (MBR) is a wastewater treatment technology that offers many advantages including excellent effluent quality, stable operation performance, a small footprint, reduction of excess sludge production, reuse of effluent, reduction of risk substances and so on. When one takes into consideration that fresh water serves as a precious resource for human brings, the ability to reuse treated water is one of the biggest advantages of using MBR technology. The activated sludge process (ASP), found in the wastewater treatment plants, consists basically of a biological reactor followed by a sedimentation tank, which has one inlet and two outlets. The purpose of the ASP is to reduce organic material and dissolved nutrients (substrate) in the incoming wastewater by means of activated sludge (microorganisms). The major part of the discharged flow thrugh the bottom outlet of the sedimentation tank is re-circulated to the reactor, so that the biomass is reused. The moving bed bio-reactor (MBBR) technology is an attached growth biological treatment process based on a continuously operati

关键词： 膜生物反应器   矿区生活污水   污水处理工艺  

摘要： 采用膜生物反应器处理矿区生活污水,对CODcr、BOD5、SS的去除率分别大于84.4%、91.7%和95%,出水水质达到《城镇污水处理厂污染物排放标准》。

关键词： 复合式膜生物反应器   船舶生活污水   生化反应   有机物降解动力学  

摘要： 研究了复合式膜生物反应器(HMBR)中生化反应及膜自身对船舶生活污水中浓度较高的有机物的去除作用。当进水COD浓度为1 000 mg/L左右,反应器容积负荷为2.4 kg COD/(m3·d)时,HMBR曝气池内生化反应对COD的去除率平均可达91.63%,膜本身去除率平均为5.09%。可见,曝气池内生化反应对有机物的去除起到了主要作用,而膜则维持了系统出水水质的稳定。对曝气池内有机物降解动力学模型进行了研究,曝气池内有机物降解遵循一级反应,其相应动力学参数为vmax=2.79 d-1,Ks=395 mg/L,所得动力学方程可用于指导船用膜生物反应器的设计及运行维护。

关键词： 对氨基苯磺酸   膜生物反应器   生物强化   生物降解  

摘要： 本文在膜生物反应器(MBR)中投加菌种Pannonibacter sp.W1,以对氨基苯磺酸(4-ABS)为唯一碳源,进行了4-ABS废水生物强化降解的研究。考察了不同水力停留时间、有机负荷、污泥浓度、DO条件下,W1作为高效菌强化MBR的降解效果及特性。结果表明,MBR运行稳定,菌泥活性好,MLSS浓度高,停留时间为6h时,出水4-ABS去除率可达99%以上,COD低于50 mg/L,控制DO在5mg/L^6 mg/L为宜。通过涂板分析,粗估W1是优势菌株,可在MBR中稳定存在。