碳氮比

投加甲醇提高原水碳氮比，出水COD浓度仍和平时相当。

Adding carbinol to enhance C / N of the raw water , the COD concentration in effluent is the same as usual .

高CO2浓度显著降低了根中N含量，而C含量变化不明显，导致碳氮比极显著增加。

CO_ 2 enrichment decreased the N content in the rice root , but did not change the C content , leading to an obvious increase in the ratio of C / N.

最终残余物的pH值和碳氮比分别为8.02和13.7，且含有大量的N、P、K等营养物质，可以作为有机肥。

The final pH and C / N were 8.02 and 13.7 respectively . In addition , the final remains contain plenty of N , P and K and can be used as organic fertilizer .

提高进水的碳氮比和系统中颗粒污泥比例，有利于提高颗粒污泥SBR系统SND的效果。

Increasing the C / N of influent and the proportion of granules in reactor is benefit for improving the SND performance .

不同MLSS对低温低碳氮比污水处理效果的影响

Effects of Different MLSS on Sewage Treatment Efficiency by Low Temperature and Low C / N

不同碳氮比条件下培养结果表明：加入秸秆和草炭处理，在两种土壤中，高C／N处理的HE相对含量高。

The result of cultivated at different C / N indicated : the disposal of adding stalk and turf , in the two kinds of soil , the relative content of HE is high when its C / N is high .

影响微生物活性和对堆肥反应速率起作用的非生物因子有温度、水分含量、通风供氧、pH、毒物初始浓度、有机质含量和碳氮比等。

Microbial activity and reaction rate of composting were affected by many abiotic factors , including temperature , moisture content , aeration content , pH , initial hazardous waste content , organic matter content and C / N ratio etc.

利用批量实验模拟SBR反应器中的硝化反硝化反应，考察不同温度、pH值、溶解氧（ρDO），碳氮比（COD/NH3）对同步硝化反硝化脱氮效率的影响。

By simulating sequencing batch reactor , investigations were made into the effect of temp , pH , DO , the ratio of influent carbon to nitrogen on nitrogen removal and simultaneous nitrification and denitrification .

堆肥后期各处理的粪大肠菌值均大于0.111，达到堆肥卫生学标准；且堆制结束时，堆肥的碳氮比在10~13之间，pH值在6~9之间。

The feces coliform value was all bigger than 0.111 , the pH among 6 ~ 9 and the C / N among 10 ~ 13 in the end of composting in three treatments , and the three composts were stabled .

在pH值为9.5、水力负荷为33mm/d、碳氮比为3、植物为香根草的水平时，它们对应的TP的平均去除率均达到各自的最高值。

While pH was 9.5 , hydraulic loading was 33mm / d , ratio of carbon to nitrogen was 3 , the plant was Vetiver grass , the removal efficiency of TP could reach its maximum value .

研究小型暗河式沼气池以猪粪和青草为发酵原料，在适当pH值、总固体含量和碳氮比的条件下，沼气产量和单位池容产气率与温度之间的关系。

The study was carried out with pig manure and green grass as fermented raw materials , under the condition of proper pH value , total solid content and C / N ratio to find out the relationship between the methane yield and temperature .

而目前，我国许多污水处理厂对低碳氮比城市污水除磷效果不佳，其出水TP不能达到污水排放一级A标准，急需技术进行升级改造。

But at present , for the low C / N urban sewage treatment , the effects of nitrogen and phosphorus removal are not ideal , so the effluent TP cannot reach the A standard .

以合成培养基和鱼粉废水替代培养基为原料，考查了种龄、接种量、摇床转速、初始pH、鱼粉废水浓度、培养基组成、碳氮比等因素对菌株生成乳酸的影响。

The investigation mainly focused on the effect of seed age , inoculation , initial pH , rotation , concentration of fishmeal wastewater , compositions of fermentation medium and the ratio of carbon to nitrogen on lactic acid production , COD reduction and biomass formation .

结果表明：通过对二次模型的主效应进行分析，可知三个因素对沼气产量和平均甲烷含量的影响的主次关系的顺序是一样的，依次为为碳氮比TS浓度.接种量。

The results showed that , according to the analysis of quadratic model , the influence of progression order of three factors on biogas yield and average methane contents were the same , TS density C / N inoculation amount .

进水碳氮比减小，导致厌氧段胞内储存物质PHB的合成不足，形成好氧聚磷和反硝化聚磷对PHB的竞争，系统同步脱氮除磷性能下降。

With the decrease of influent C / N , the short of PHB stored in anaerobic phase led to the competition between aerobic phosphate uptake and denitrifying phosphate accumulating and the decrease of simultaneous nitrogen and phosphorus removal performances .

两个穗型品种上述根系参数、根中糖、全氮含量和碳氮比均表现为表层（0～20cm）根系最大，随着土层深度增加呈垂直递减趋势。

The parameter referred above , sugar content , total nitrogen content and C / N in the root were greatest in the surface soil layer , and they vertically decreased with the increasing of soil depth . 2 .

光合速率和叶绿素含量影响碳氮比，从而影响开花与结实。

Photosynthetic rate and contents of chlorophyll affect flowering and fertilization ;

北冬虫夏草液体发酵培养基碳氮比的优化

Optimization of Carbon / nitrogen Ratio for Submerged Cultivation of Cordyceps Militaris

低碳氮比污水中氨氮降解动力学研究

Study on Dynamics of Ammonia Nitrogen Degradation in Wastewater with Low Carbon-nitrogen Ratio

低碳氮比工业废水生物除氮试验研究

Experimental Study on Biological Nitrogen Removal Process of Low C / N Industrial Wastewater

基于冠层高光谱参数的水稻叶片碳氮比监测

C / N content ratio of rice leaf monitoring based on canopy hyperspectral parameters

营养器官和冠层各叶片碳氮比随施氮量和追肥比例的增加呈降低的趋势。

The ratio of C / N of canopy decreased with increasing N rates .

秸秆还田添加氮素调节碳氮比的研究

Study on Adjustment of the Ratio of C to N by Adding N During Straw Turnover

不同施肥处理对玉米秸秆碳氮比及其矿化特性的影响

Effects of fertilization on carbon / nitrogen ratio of maize straw and its mineralization in soil

低碳氮比城市污水短程生物脱氮试验研究

Short-cut nitrification and denitrification of low C / N ratio municipal wastewater in a pilot-scale research

对外循环三相流化床的挂膜进行研究，主要探讨污泥投加量和碳氮比（C/N）对挂膜的影响。

The effect of the value of sludge addition and C / N ratio were studied .

氮肥厂低碳氮比废水生物脱氮新工艺试验研究

Experiment Research of New Biological Denitrification Process to Low C / N Wastewater of Nitrogenous Fertilizer Plant

因此，低的碳氮比利于复合菌系LZF-12降解稻秆产酸。

Thus , low C / N ratio will be advantageous in degrading rice straw and producing VFAs .

阔叶树种在杉阔混交林中具有增氮和调节碳氮比作用，退化点和作用点彼此互为佐证。

The broad leaved tree in mixed forest can add nitrogen and adjust the ration of carbon to nitrogen .

人工湿地处理低碳氮比污染河水时的脱氮机理

Nitrogen removal mechanism in constructed wetland used for treating polluted river water with lower ratio of carbon to nitrogen