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总无机氮
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  total inorganic nitrogen
     The NaHCO3 concentration increased from 1.75g/L to 2.50g/L, the pH value in the reaction system increased from 7.6~8.0 to about 8.8, the conversion rate of ammonium nitrogen and total inorganic nitrogen removal rate all decreased dramatically to 53% and 48.8% respectively.
     结果表明,当NaHCO3浓度从1.75g/L上升到2.50g/L时,反应体系中的pH值从7.6~8.0上升到8.8左右,氨氮转化率和总无机氮去除率分别急剧下降到53%和48.8%.
短句来源
     The average removal rate of ammonia nitrogen, total inorganic nitrogen, phosphorus, and acetate-C reaches 97.8%, 89.7%, 96.8%, and 98.8% respectively at the influent concentration of ammonia nitrogen 25-50 mg/L, phosphorus 8-15 mg/L, and acetate-C 100-180 mg/L, as well as MLSS 7.0 g/L and MLVSS 6.4 g/L in the system.
     当进水氨氮、磷和乙酸碳浓度分别为 25~50、8~15、100~180mg/L,MLSS为 7. 0g/L,MLVSS为 6. 4g/L时,对氨氮、总无机氮、磷、乙酸碳的平均去除率分别为 97. 8%、89. 7%、96. 8%和98. 8%。
短句来源
     This SBR system showed a very stable phosphorus, nitrogen and organic carbon removal performance. The removal rate for ammonium, total inorganic nitrogen, phosphorus and organic carbon reached 89.2%~98.9%,81.3%~89.4%,86.8%~90.0% and 82.7%~96.6% respectively.
     试验结果表明,该系统对氮、磷和有机物具有良好的去除效果,对氨氮、总无机氮、磷、COD的去除率分别达到89.2%~98.9%,81.3%~89.4%,86.8%~90.0%和82.7%~96.6%.
短句来源
     The experiment results showed that the NaHCO3 concentration increased from 1.75g/L to 2.5g/L, the pH value in the reaction system increased from 7.6-8.0 to about 8.8, the conversion rate of ammonium nitrogen and total inorganic nitrogen removal rate all decreased dramatically to 53% and 48.8% respectively.
     实验结果表明,当无机碳NaHCO_3浓度从1.75g/L上升到2.5g/L时,反应体系中的pH值从7.6~8.0上升到8.8左右,氨氮转化率和总无机氮去除率分别急剧下降到53%和48.8%。
短句来源
     The detection results showed: the pH is normal, heavy metals, P, the total inorganic nitrogen and DO accord with class I water quality standard,COD belongs to the class III water quality standard.
     水质检测结果显示酸度正常 ,重金属、P、总无机氮、溶解氧符合一类水质标准 ,COD属于三类水质标准。
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  “总无机氮”译为未确定词的双语例句
     The results arrived as DO in summer is 3.98 mg/L,BOD average is 4.98 mg/L over the year,CODMn average is 4.59 mg/L,TIN average is 1.37 mg/L and TP average is 0.209 mg/L.
     研究表明,滆湖水体夏季DO为3.98 mg/L、生化需氧量年均值为4.98 mg/L、高锰酸盐指数年均值为4.59 mg/L、总无机氮年均值为1.37 mg/L、总磷年均值为0.209 mg/L;
短句来源
     TIN removal rates of high and low concentration environment were 62.9% and 38.8%, respectively.
     总无机氮 (TIN)的去除率分别为6 2 9% (高浓度环境 )和 38 8% (低浓度环境 ) ;
短句来源
     Denitrifying microorganisms tamed with gradient addition of copper ion could adapt to the existence of copper ion and achieve effectively the denitrification process. Under the best technical condition of current density 0.1mA/cm2 and C/N 1.07, the removal rate of total nitrogen (TN) in the effluent water reached above 98%; concentration of copper ion <1mg/L, pH value about 7, and no secondary pollution existed.
     结果表明,经过铜离子梯度驯化的反硝化微生物可以适应铜离子的存在并有效完成反硝化过程,在最佳工艺条件(电流密度为0.1mA/cm2,C/N为1.07)时,出水中总无机氮(TN)去除率达到98%以上,铜离子浓度<1mg/L,pH值在7左右,且不存在二次污染.
短句来源
     The contribution of NO-_ 3 -N to TIN was less than that of NH+_ 4 -N, accounting for 4.75% ~ 46.64% of TIN in aerosol.
     其次是NO3--N,占到总无机氮含量的4.75%~46.64%;
短句来源
     The NH_4-N, NO_3-N, NO_2-N, DIN and PO_4-P were analyzed by the SKALAR Channel Seawater Segmented Flow Nutrient Analyzer.
     氨氮(NH_4-N)、硝态氮(NO_3-N)、亚硝态氮(NO_2-N)、总无机氮(DIN)、无机磷(DIP)、硅酸盐(SiO_4-Si)等因子使用荷兰SKALAR水质微量流动注射分析仪和日本岛津UV-501紫外/可见分光光度计进行测定。
短句来源
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  相似匹配句对
     GAS-CHROMATOGRAPHIC DETERMINATION OF DISSOLUBLE OXYGEN, NITROGEN AND TOTAL INORGANIC CARBON IN SEAWATER
     气相色谱法测定海水中氧、无机
短句来源
     Study on Preservation Conditions for the Specimen of the Overall Nitrogen
     样品保存条件探讨
短句来源
     Dissolved Inorganic Nitrogen in the Southern Yellow Sea
     黄海南部的溶解无机
短句来源
     Total nitrogens (TN) is 1.280 mg.
     为 1.280mg.
短句来源
     A Study on Soil Nitrogen Mineralization, Nitrification and Mineral Nitrogen Consumption Rates of Soil in Leymus chinensis Grasslands
     羊草草地土壤矿化、硝化和无机消耗速率研究
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  total inorganic nitrogen
The annual transport of total inorganic nitrogen and dissolved phosphate-phosphorus from the Huanghe River water to the sea is about 8.45 ×104 and 1.45×103 tons respectively.
      
The total estimated amount of regenerated ammonium was ?1.35×105?t N?year-1 in the intertidal flat of the Yangtze Estuary, which occupied 7.6% of the total inorganic nitrogen annually transported to the estuarine ecosystem.
      
In contrast to the February sampling, there was evidence that the ice-algal assemblage in April was nitrogen-limited, with total inorganic nitrogen concentrations being >amp;lt;1?μm and a mean inorganic nitrogen to phosphorus ratio of 2.8.
      
The effect of total inorganic nitrogen and the balance between its ionic forms on adventitious bud formation and callus growth o
      
To improve proliferation of soybean cultures in liquid medium, the effects of sucrose; total inorganic nitrogen; content of No3-, NH4+, Ca2+, PO43-, K+; NH4+/NO3- ratio; and medium osmotic pressure were studied using cv.
      
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  total inorganic nitrogen (tin)
After six years of artificial oxygenation in Lake Sempach, a decrease in hypolimnetic total inorganic nitrogen (TIN) was observed in the last two years.
      


By budgeting the supply and demand quantity of inorganic nitrogen, the Carrying capacity of Sanggou Bay for the culture of kelp Laminaria japonica. was studied from July, 1993 to December, 1994. Results showed that (1) sea water exchange period of the bay in 1994 was about 39 days,almost one fold longer than thatmiddle of 80's; (2)the nitrogen released from the sediment of sea bed was the biggest supplier of inorganic nitrogen for the bay; (3)the total amount of inorganic nitrogen available in the bay was 1228...

By budgeting the supply and demand quantity of inorganic nitrogen, the Carrying capacity of Sanggou Bay for the culture of kelp Laminaria japonica. was studied from July, 1993 to December, 1994. Results showed that (1) sea water exchange period of the bay in 1994 was about 39 days,almost one fold longer than thatmiddle of 80's; (2)the nitrogen released from the sediment of sea bed was the biggest supplier of inorganic nitrogen for the bay; (3)the total amount of inorganic nitrogen available in the bay was 1228 MT,and among them,about 664 MT was available for supporting the growth of kelp ; (4) the total carrying capacity of Sanggou Bay for culture of kelp was about 54 000 MT sun-dried weight,or about 600kg/1 500m2 in average for unit area carrying capacity.

首次对桑沟湾的海带养殖容量进行了调查研究。采用了无机氮作为估算桑沟湾海带养殖容量的关键因子,通过无机氮的供需平衡估算海带养殖容量。结果显示,海底沉积物中释放的无机氮为该湾无机氮的主要来源,而由海水交换所带入的无机氮次之。海带生长期间海水交换周期为39d,比80年代中期延长了近1倍。桑沟湾在海带生长期间由海水交换、陆地径流、动物排泄和海底沉积物中释放所进入该湾的无机氮总供应量为1228t;而浮游植物、附着藻类的总无机氮需求量为582t。能够支持海带生长的无机氮总量为646t。因此,桑沟湾海带淡干养殖容量为54000t,单位面积养殖容量为600kg/1500m2。

In this paper the authors in particular studied the horizontal distribution of NO - 2 N,NO - 3 N,NH + 4 N,PO 3- 4 P, organic matter and the ratios of c (NO - 3 N)/ c P and ∑ c N/ c P (∑ c N= c (NO - 2)+ c (NO - 3)+ c (NH + 4)) in interstitial water of surface sediment in the culture area of Hong hai Bay and discussed the seasonal variations of nitrogen, phosphorous and organic matter in interstitial water in the bay and their correlation between. The results...

In this paper the authors in particular studied the horizontal distribution of NO - 2 N,NO - 3 N,NH + 4 N,PO 3- 4 P, organic matter and the ratios of c (NO - 3 N)/ c P and ∑ c N/ c P (∑ c N= c (NO - 2)+ c (NO - 3)+ c (NH + 4)) in interstitial water of surface sediment in the culture area of Hong hai Bay and discussed the seasonal variations of nitrogen, phosphorous and organic matter in interstitial water in the bay and their correlation between. The results showed that the concentration of NH + 4 N were higher than NO - 2 N and NO - 3 N of three seasons in Spring,Summer and Winter.The average conctentratin of NH + 4 N is 92.60,47.04,9.60 μmol/L in Spring,Summer and Winter and occupied 80.57,61.64 and 45.76 percent of total dissolved inorganic nitrogen separately. And the average concentration of PO 3- 4 P and content of organic matter in Summer were higher than those in Spring and Winter,they are 53.68 μmol/L and 1.362%.The analysis displayed that the dissolved inorganic nitrogen in interstitial water of the bay existed mainly in NH + 4 N form.

着重研究了红海湾养殖区底质水中 NO-3 -N、NO-2 -N、NH+ 4-N、PO3 -4 -P、有机质及 c( NO-3 -N) /c P 和 ∑c N/c P( ∑c N=c( NO-2 ) +c( NO-3 ) +c( NH+ 4) )比值的分布特征 ,并对该湾低质水中氮、磷及有机质的季节变化及其它们之间的相互关系作了讨论 ,结果表明 :在春、夏、冬三个季节中 ,NH+ 4-N的浓度比NO-2 -N及 NO-3 -N高 ,春季 NH+ 4-N的平均浓度为 92 .60 μm ol/L,占总无机氮 80 .57% ;夏季浓度为4 7.0 4μmol/L ,占总无机氮 61 .64 % ;冬季 NH+ 4-N的浓度最低 ,为 9.60μmol/L ,占总无机氮 4 5.76% ;而夏季 PO3 -4 -P浓度及有机质的含量比春、冬季高 ,分别为 53 .68μm ol/L和 1 .3 62 %。分析指出该湾底质水中无机氮是以 NH+ 4-N为主要存在形态。

The series data of nutrients and biological parameters in the central Bohai Sea for 20 years were reviewed. It is found that both concentration and relative content of nutrients were changed dramatically. The increase of nitrogen and decrease of phosphate and silicate led to the dramatically increase of N/P ratio and the decrease of Si/N ratio. The average ratio of N/P in May and October in the central Bohai Sea was increased from 1 64 in 1982~1983 to 16 2 in 1998~1999, but the average ratio of Si/N was decreased...

The series data of nutrients and biological parameters in the central Bohai Sea for 20 years were reviewed. It is found that both concentration and relative content of nutrients were changed dramatically. The increase of nitrogen and decrease of phosphate and silicate led to the dramatically increase of N/P ratio and the decrease of Si/N ratio. The average ratio of N/P in May and October in the central Bohai Sea was increased from 1 64 in 1982~1983 to 16 2 in 1998~1999, but the average ratio of Si/N was decreased from 13 12 in 1982~1983 to 1 32 in 1998~1999. The situation of nitrogen limiting in the central Bohai Sea was gradually changing to that of relative lack of phosphate and silicate. The decrease of Yellow River flow into to Bohai Sea may be resulted in this change. These may limit the growth of diatom and thus promote the development of pyrrophyta if other conditions (e.g.temperature and hydrodynamics) were suitable. This may be the major factor for pyrrophyta red tide occued in Bohai Sea.

通过系统分析近 2 0a来渤海中部海域 3a( 1 982~ 1 983,1 992~ 1 993,1 998~ 1 999年 ) 1 0航次的生态环境特征参数的变化 ,描述了变化趋势 ,初步讨论了各特征参数之间的相互关系。研究发现 ,近 2 0a来 ,渤海中部营养盐的浓度和结构 (N/P和Si/N)均发生了显著变化 ,表现为 :硝酸盐、亚硝酸盐、总无机氮持续增加 ,活性磷和硅显著降低 ,N/P值升高 ,Si/N值下降。N/P值 3a的五月和十月平均值分别为 1 64、5 2 4和 1 6 1 2 ,Si/N值分别为 1 3 2、3 87和 1 32。渤海中部海域氮限制的状况正在逐步改变 ,活性硅和磷从供给充分改变为硅和磷限制的临界 ;渤海营养盐结构若按此趋势演化 ,必将造成磷和硅限制。黄河口及毗邻海域磷很低 ,不是渤海磷的主要来源 ,而氮和硅主要由黄河输入 ,近几年来黄河断流减少了主要由风化过程产生的硅的入海量 ,而农用化肥的流失总量并未改变 ,这是造成上述变化趋势的主导因子。渤海赤潮近几年频发 ,硅的减少使硅藻生长受到了较大压力 ,从而间接地助长了甲藻的生长可能是一个重要原因。

 
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