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biodegradation rates
相关语句
  生物降解速率
     EFFECTS OF SOIL(SEDIMENT)ADSORPTION ON BIODEGRADATION RATES OF 2,4-D
     土壤沉积物吸附对2,4-D生物降解速率的影响
短句来源
     The quantitative relationship of structures and biodegradation rates of compounds was analyzed with the group contribution method.
     采用基团贡献法进行化合物的结构与生物降解速率常数之间的定量关系研究,各基团对生物降解性的贡献依次为:苯基、羧基、甲氧基/甲基、羟基、氨基、硝基.
短句来源
     Biodegradation rates of benzoic acids, phenols and anilines in natural water bodies
     苯甲酸、苯酚及苯胺类在自然水体中的生物降解速率
短句来源
     Different biodegradation rates are reqiured in various implant environments, but the biodegradability of single-phase calcium phosphates is limited.
     不同的应用用途和植入环境等对磷酸钙材料的生物降解速率要求不同,而目前已有单相磷酸钙材料的生物降解速率过快或过慢,可调节程度很小。
短句来源
     By means of the biostimulation and bioaugmentation in the micro-ecological environment of contaminated soil with petrochemical hydrocarbons, the biodegradation rates and mode of the contaminants were significantly improved.
     油污土微生态环境的非生物因子通过改变降解优势菌的含量及活性最终影响石油烃的生物降解速率及模式 .
短句来源
  “biodegradation rates”译为未确定词的双语例句
     The average biodegradation rates of phenol,o-cresol,m-cresol and 4-octylphenol were found to be 2.54,3.17,1.84 and 0.16 mg/L respectively.
     单歧藻平均每天降解苯酚、邻甲酚、间甲酚、4-辛基酚分别为2 54,3 17,1 84,0 16mg L;
短句来源
     Among the bacteria isolated, bacterium D was found to have a strong ability in the biodegradation of MCs. Initial MC-RR and LR of 60.1 mg·L -1and 38.7 mg·L -1 were completely removed in 3 days and the average biodegradation rates per day for MC-RR and LR were 20.0 mg·L -1and 12.9 mg·L -1, respectively.
     其中筛选的菌种D降解MCs的能力最强 ,在 3d内可将初始浓度分别为 6 0 1mg·L-1和 38 7mg·L-1的MC RR和LR全部降解 ,日均降解MC RR和LR的速率分别高达 2 0 0mg·L-1和 12 9mg·L-1.
短句来源
     The results showed that the biodegradation rates were higher when chlorpyrifos was the sole carbon source with concentration of 20~200 mg L -1 , pH 6.5~9.0 and temperature 30~40 ℃.
     结果表明,以毒死蜱为唯一碳源且其浓度为20~200mgL-1,pH6. 5~9. 0,温度30 ~40℃时,真菌的降解效果较好;
短句来源
     The Cu 2+ removal rates of the resistant strain at 24 h and 96 h were 48.87% and 80.77%, and the biodegradation rates of the wild strain at 24 h and 96 h were 20.88% and 34.29%, respectively.
     而野生株在 2 4h之前对Cu2 + 富积相对较慢 ,2 4h去除率为 2 0 .88% ,96h的去除率为 34.2 9%。
短句来源
     After bioremediation operation of 93d, the removal rate of petroleum hydrocarbons reached 25.8%. Typically the biodegradation rates of the alkane compounds were highest and reached 43.12%.
     结果表明,经过93d的运行,石油烃去除率达25.8%,其中典型轻质组分烷烃生物降解率最高,可达43.12%.
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  相似匹配句对
     The Dr rates of E.
     coli的耐药性不同 ,尿中E .
短句来源
     EFFECTS OF SOIL(SEDIMENT)ADSORPTION ON BIODEGRADATION RATES OF 2,4-D
     土壤沉积物吸附对2,4-D生物降解速率的影响
短句来源
     Biodegradation of Polyethylene
     聚乙烯塑料的生物降解研究
短句来源
     Biodegradation of Polyether
     聚醚酯的生物降解性研究
短句来源
     The rates of increase of R。
     值增加的速率存在差异,前期R。
短句来源
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  biodegradation rates
Pretreatment by CWAO under operating conditions resulted in effluents whose biodegradation rates were significantly higher than those of the original.
      
The aerobic slurry experiments suggested initial phosphate (P) limitation, as biodegradation rates increased by one order of magnitude after phosphate addition.
      
Fertilization with N and P and bioaugmentation of oil-contaminated soil with hydrocarbon-degrading microorganisms may serve to enhance oil biodegradation rates.
      
Nitrogen additionsincreased biodegradation rates of some alkanes andpolycyclic aromatic hydrocarbons (PAHs).
      
Biodegradation rates of oily waste in soil can be limited by mineral nutrients, particularly N and P.
      
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This simulation study deals with the biodegradation processes of petroleum hydrocarbons and phenol substances in soil and their relations with soil enzyme activities. Results show that the biodegradation rates of these pollutants are higher when in low concentra tions and under normal soil moisture condition than in high concentrations and under waterlogged. Chemical structures of pollutants also give an influence to the rates:a lower biodegradation rate can be found for the pollutant having...

This simulation study deals with the biodegradation processes of petroleum hydrocarbons and phenol substances in soil and their relations with soil enzyme activities. Results show that the biodegradation rates of these pollutants are higher when in low concentra tions and under normal soil moisture condition than in high concentrations and under waterlogged. Chemical structures of pollutants also give an influence to the rates:a lower biodegradation rate can be found for the pollutant having a more stable and complex chemical structure. The biodegradation process of hydrocarbons and phenol relates closely with the activities of soil invertase and polyphenoloxidase respectively, and hence, the intensity of these activities could be respectively used as an index indicating the pollu tion degree of soil by petroleum hydrocarbons and phenol substances. To say the least, a certain extent of pollution by these pollutants does not exert an obvious influence un favourable to the biological activities or transformations of C, N, and P in soil under normal soil moisture condition. Based on these results, suggestions on land treatment of these pollutants are put forward.

本文通过模拟实验,研究了不同条件下石油烃和酚类物质在土中的降解进程及其与土壤酶活性的关系,并在此基础上,对所述污染物的土地处理提出了若干建议。

Nitrobenzene and river water sample collected from the Saokou section of the Second Songhua River were selected as the substrate and the source of microorganism respectively. The effects of initial concentrations of nitrobenzene, acclimating conditions and temperature on the rate of biodegradation were studied. Results showed that the process of biodegradation of nitrobenzene (53.5-535 μg/l) in river water can be described by a logarithmic equation as follows. S=S0 +X0 (1-enmt),and the parameter...

Nitrobenzene and river water sample collected from the Saokou section of the Second Songhua River were selected as the substrate and the source of microorganism respectively. The effects of initial concentrations of nitrobenzene, acclimating conditions and temperature on the rate of biodegradation were studied. Results showed that the process of biodegradation of nitrobenzene (53.5-535 μg/l) in river water can be described by a logarithmic equation as follows. S=S0 +X0 (1-enmt),and the parameter μm is uneffected by the initial concentrations of substrate but effected considerably by temperature and acclimating conditions. The biodegradation reaction of nitrobenzene was inhibited by the co-existing aromatic nitro-compounds and chlorobenzenes but promoted by acetone. In the presence of acetone, the biodegradation rate of nitrobenzene was shown to fit the equation of first order kinetics.

以第二松花江哨口断面江水为微生物源,对硝基苯的生物降解动力学进行研究。结果表明,硝基苯在江水中的生物降解过程可由对数方程S=S_0+X_0(1—e~(μmt))描述;丙酮作标准液溶剂时,硝基苯的生物降解速率符合一级动力学方程;由此得到硝基苯生物降解动力学参数,即微生物最大比增长速率μm和一级速率常数K。硝基苯的初始浓度(53.5—535μg/L)对l'm没有明显的影响,温度、驯化条件对μm的影响显著,硝基芳烃、氯苯类化合物对硝基苯的降解有抑制作用。

A study on the biodegradability of terephthalic acid (TA) aiming at clarifying its biodegradation characteristics, biodegradation rate and metabolic pathways, by activated sludge was carried out. The results show that terephthalic acid can be biodegtaded rapidly by microorganisms. The relationship between biodegradation rate and the concentration of TA can be fitted into Michaelis-Menten model. The biodeg-raded products from terephthalic acid by activated sludge were identified as m-hydroxybenzoic...

A study on the biodegradability of terephthalic acid (TA) aiming at clarifying its biodegradation characteristics, biodegradation rate and metabolic pathways, by activated sludge was carried out. The results show that terephthalic acid can be biodegtaded rapidly by microorganisms. The relationship between biodegradation rate and the concentration of TA can be fitted into Michaelis-Menten model. The biodeg-raded products from terephthalic acid by activated sludge were identified as m-hydroxybenzoic acid and protocatechuic acid and a metabolic pathway of terephthalic acid was accordingly proposed.

活性污泥经驯化,TA可被微生物降解,且具有较快的降解速度,当降解程度达90%时,平均降解速率为37.3mg COD/gMLSS·h,与进水COD浓度的关系符合Michaelis-Menten公式。在本实验条件下v_(max)为709.2mg COD/L·d,K_m为488.4mg COD/L。在活性污泥作用下,TA降解的中间产物被确定为间羟基苯甲酸和原儿茶酸。

 
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