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soluble microbial
相关语句
  溶解性微生物
     Soluble microbial production(expressed as TOC) in the effluent was kept at around 3~4mg/L,while that in the reactor increased to 65(mg/L) and then almost unchanged.
     系统内的溶解性微生物产物(以TOC表示)升至65 mg/L后保持稳定,出水TOC一直维持在3~4mg/L;
短句来源
     The formation mechanism and characteristics of soluble microbial products (SMP) in wastewater biological treatments
     废水生物处理出水中溶解性微生物产物的形成机制与特征
短句来源
     Microbial lysis released soluble microbial products (SMP) and extracellular polymeric substances (EPS) into mixed liquids, hence increased effluent soluble COD (SCOD).
     细菌的死亡和溶解释放出溶解性微生物产物(SMP)和胞外聚合物(EPS),这类物质进入混合液,增大了出水SCOD。
短句来源
     A comparison of the effluents between a new membrane and an old membrane was carried out under Soluble Microbial Product(SMP)accumulated in Membrane Bioreactor(MBR).
     在膜生物反应器(MBR)发生溶解性微生物产物(SMP)积累的情况下,对新膜与旧膜的出水水质进行了比较。
短句来源
     Accumulation of soluble microbial products (SMP) is occurred in MBR but it could be degraded further along with test progressing.
     MBR内出现了溶解性微生物产物的积累,但随着运行时间的延长可被进一步降解。
短句来源
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  “soluble microbial”译为未确定词的双语例句
     The quantitative relationshipbetween the amount of EPS attached on the membrane and filtration resistance is R=7×105×Pv3.3385, and suspended EPS concentration in tank and filtration resistance is R=3.1525×1013×Pu-2.201×1012. Most of soluble microbial products(SMP) having generated in microbial endogenous growth can be accumulated in the bioreactor.
     膜生物反应器中悬浮EPS浓度与过滤阻力之间的相关性方程为:R=7×10~5×P_v~(3.3385); 单位膜面积吸附EPS质量与过滤阻力之间的相关性方程为:R=3.1525×10~(13)×P_u-2.201×10~(12).
短句来源
     Production of Soluble Microbial Products and Analysis of Its Affecting Factors
     可溶性微生物产物的产生及影响因素分析
短句来源
     The accumulation of soluble microbial products(SMP) had not been observed in supernatant of MBR during 50~161d experimental period,and SMP with a molecular weight(MW)>140 000 in supernatant accounted for 49.6% as contrasted to 22.. 5% in CAS.
     在运行天数为50~161d期间,M BR系统中没有发现可溶性微生物产物(SMP)明显的积累现象,在SMP中分子量大于14000的总有机碳(TOC)含量占总量的49.6%,CAS系统中相应值为22.5%;
短句来源
     Domestic wastewater was treated by an integral membrane bioreactor(MBR) under stable membrane flux. Relation of soluble microbial product and sludge properties was investigated during the domestic wastewater treatment by MBR.
     以模拟生活污水为研究对象,在膜通量恒定的条件下,考察了MBR(Membrane Bioreac-tor)内SMP(Soluble Microbial Product)的积累与污泥特性之间的相关性.
短句来源
     Soluble Microbial Products in the Wastewater Treatment Effluent
     废水处理中的可溶性微生物产物
短句来源
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  相似匹配句对
     Soluble Microbial Products in the Wastewater Treatment Effluent
     废水处理中的可溶性微生物产物
短句来源
     PROGRESS OF MICROBIAL SYNTHESIS OF WATER-SOLUBLE VITAMINS
     水溶性维生素微生物合成法进展
短句来源
     Rapidly-soluble C. M. C.
     速溶C.M.C.
短句来源
     Soluble Silicate
     海水中可溶性无机硅
短句来源
     Microbial Pesticide
     微生物源农药
短句来源
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  soluble microbial
The VV complement control protein or VCP, was one of the first soluble microbial proteins postulated to have an active role in the immunomodulation of the host defense.
      
Soluble microbial products (SMPs) released from the biostablizing filter into the effluent have two peaks in the EEFM, identified as protein-like and humic-like acid.
      
Adaptive response of microbial communities to soluble microbial products
      
Soluble microbial products (SMP) are organics produced by microorganisms as they degrade substrates.
      
Behavior of microbial communities developed in the presence/reduced level of soluble microbial products
      
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A comparison between a submerged membrane bioreactor (MBR) and a conventional activated sludge process (CAS) was carried out under similar operational conditions. MBR demonstrated a more stable and excellent effluent quality than CAS.Its effluent COD concentration was 55.5mg/L on average, much lower than that of CAS (79.7mg/L). Soluble microbial products accumulated in the MBR during the first 120 days in operation due to membrane interception of macromolecules, but these accumulated substances were degraded...

A comparison between a submerged membrane bioreactor (MBR) and a conventional activated sludge process (CAS) was carried out under similar operational conditions. MBR demonstrated a more stable and excellent effluent quality than CAS.Its effluent COD concentration was 55.5mg/L on average, much lower than that of CAS (79.7mg/L). Soluble microbial products accumulated in the MBR during the first 120 days in operation due to membrane interception of macromolecules, but these accumulated substances were degraded at last with microbial acclimation. No similar phenomenon was observed in the CAS system. Compositions of the CAS effluent, MBR supernatant and membrane permeate were found quite different. In the CAS effluent and MBR supernatant, both macromolecules with MW>60 000 and small molecules with MW<3 000 were dominant and macromolecules had a much larger occupation in the MBR supernatant. In the membrane permeate, however, small molecules with MW<3 000 were the major component. The relatively small floc size in the MBR was proved favorable to improve oxygen transfer rate.

在运行条件一致的情况下把膜 生物反应器 (MBR)和传统活性污泥工艺 (CAS)进行了比较研究。试验结果表明 ,MBR具有比CAS更为稳定良好的出水水质 ,其平均出水COD浓度为 55 5mg L ,低于CAS工艺 ( 79 7mg L)。MBR系统中由于膜对大分子物质的截留作用 ,运行前 1 2 0d出现溶解性微生物产物的积累 ,但随着微生物的驯化 ,这些积累的微生物产物最后得到降解。CAS中未发生微生物产物的积累。CAS出水、MBR上清液以及MBR出水中的物质组成差别很大。CAS出水和MBR上清液中分子量大于 60 0 0 0的高分子物质与小于 30 0 0的小分子物质都占有相当大的比例 ,其中高分子物质在MBR上清液中的含量高于CAS系统 ;MBR出水中则主要是分子量小于 30 0 0的小分子物质。MBR污泥粒径较小 ,使得氧扩散速率得到提高。

A review concerning the production of soluble microbial products (SMP) and their impact in a membrane bioreactor is presented in this paper. The high performance of membrane separation in the membrane bioreactor not only results in an increased organic loading rate and an improved effluent quality, but also builds the bioreactor as a relatively closed system. SMP, most of which have been identified as humic acid, polysaccharide and protein released from substrate metabolism and microbial endogenous...

A review concerning the production of soluble microbial products (SMP) and their impact in a membrane bioreactor is presented in this paper. The high performance of membrane separation in the membrane bioreactor not only results in an increased organic loading rate and an improved effluent quality, but also builds the bioreactor as a relatively closed system. SMP, most of which have been identified as humic acid, polysaccharide and protein released from substrate metabolism and microbial endogenous growth, are found to comprise the majority of soluble TOC or COD in the biologically treated effluent. SMP accumulation was always observed in a membrane bioreactor due to its considerable macromolecular content and its slow biodegradable nature. Too much accumulated SMP may decrease the stability of the effluent quality, repress microbial viability, as well as result in serious membrane fouling. SMP formation is greatly influenced by influent concentration and sludge concentration. The knowledge about SMP in a membrane bioreactor is far from completion. Much work is still required to be done.

本文就膜 -生物反应器中溶解性微生物产物的生成特性及其影响的研究进展进行了总结。在膜 -生物反应器中 ,膜的高效固液分离作用在提高系统容积负荷和出水水质的同时 ,也使生物反应器成为一个相对封闭的系统。以腐殖质、多糖、蛋白质等物质为主要成分的溶解性微生物产物是生物处理出水中溶解性TOC或COD的主要组成部分 ,主要产生于微生物的基质分解过程和内源呼吸过程 ,其高分子物质的含量较多且可生物降解性较差 ,因此 ,在膜 -生物反应器中会出现积累。溶解性微生物产物的过高积累不仅有可能降低膜过滤出水的水质稳定性 ,而且有可能影响污泥活性 ,并引起膜污染。进水浓度和污泥浓度是影响溶解性微生物产物产生量的重要因素。目前有关膜 -生物反应器中溶解性微生物产物的研究还很不完善 ,有很多问题需进一步研究

The running of MBR system with PAC(1g/L) was studied.The PAC-MBR system gave a higher removal of NH_4~+-N,but the removal of TN was lower with a high quantity of NO_3~-.And it could degrade some non-biodegradable organic compounds such as extra-cellular polymeric substances(EPS) and soluble microbial products(SMP),which were major fouling causing substances in the membrane coupled activated sludge system.At the same time,PAC improved the activated sludge's characterizations such as compressibility.These...

The running of MBR system with PAC(1g/L) was studied.The PAC-MBR system gave a higher removal of NH_4~+-N,but the removal of TN was lower with a high quantity of NO_3~-.And it could degrade some non-biodegradable organic compounds such as extra-cellular polymeric substances(EPS) and soluble microbial products(SMP),which were major fouling causing substances in the membrane coupled activated sludge system.At the same time,PAC improved the activated sludge's characterizations such as compressibility.These could help to reduce the fouling of membrane.

在一体式MBR系统中投加少量的粉末活性炭,运行效果良好,并且可以很好地降低膜污染。粉末活性炭在形成生物活性炭后,对难降解有机物具有很好的降解能力;NH4+-N的去除率得到进一步提高,NO3-的含量升高;但反硝化作用不明显,致使总氮去除率不高;生物活性炭很好地吸附并降解了易引起膜污染的有机物,改变了污泥的性质,对膜组件起到了很好的保护作用。

 
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