水中氮
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本试验采用水生植物作为对二级处理水中氮、磷去除的方法,在静水中经过3d凤眼莲净化,全N的去除率为79&95%,P为58.9%;
In the effluent of secondary treatment N and P were removed by aquatic plants .
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pH值和光照对镧改性膨润土吸附水中氮和磷的影响
Effect of pH value and light on La-modified bentonite adsorption of phosphorus and nitrogen in water
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同时,修复样上覆水中氮、磷和COD的浓度也明显下降,对控制水体富营养化有明显效果。
For the overlying water , the index of phosphorus , nitrogen and COD also declined evidently , which had obvious effect on eutrophication control .
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测定加入植物和植物浸出液与铜绿微囊藻共同培养过程中藻密度、水中氮磷含量及MC含量。
Determination of the process of algal density , water content of nitrogen and phosphorus content and algal toxins , after adding the plants and plant extracts .
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强化生态浮床对珠江水中氮污染物去除研究
Nitrogen Removal from Pearl River by Enhanced Ecological Floating Bed System
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长江宜宾境内地表水中氮磷负荷及来源构成
N and P load and its source in surface water of Yangtze River in Yibin area
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间隙水中氮和磷含量的平面分布差异不明显。
The concentration of nitrogen and phosphorus in the interstitial water were inconspicuous in horizontal distributions .
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池塘淤泥对水中氮营养盐影响的初步研究
A preliminary study of the impact of humus on Nitrogen Nutritional salts of water quality environment
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太多的溢水量使水中氮含量过高,导致游入哥伦比亚河的鲑鱼致死。
Too much spill dissolves too much nitrogen in the river , which can kill migrating salmon .
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通过对凹凸棒土的改性,探讨了改性凹凸棒土对水中氮磷的等温吸附和动力学过程。
Through attapulgite modification , adsorption isotherms and kinetics of nitrogen and phosphorus in water has been discussed .
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太湖底泥及其间隙水中氮磷垂直分布及相互关系分析
The Vertical Distributions of Nitrogen and Phosphorus in the Sediment and Interstitial Water in Taihu Lake and Their Interrelations
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不同强度降雨后,田面水中氮磷浓度均随稻田蓄水深度的增加而降低。
After different intensity of rainfall , the concentration of nitrogen and phosphorus decreased gradually according to the depth increasing .
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二段上流式曝气生物滤池去除高标准景观补给水中氮磷营养物
Enhanced nitrogen and phosphorus removal with a two-stage submerged biofilter for reclaimed water with the stringent standards for scenic environment use
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同时,季节的变化,农业退水中氮磷的浓度也发生变化,6~8月份农业退水中氮磷浓度最高。
Meanwhile , with the change of season , the nitrogen and phosphorus of refund wate are also produces change of 6 ~ 8 months .
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受施肥量和作物生长状况的影响,施基肥后田面水中氮磷的浓度最高。
Under the impact of fertilization amount and crop growth conditions , the concentrations of N and P were highest after the application of basal fertilizer .
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间隙水中氮和磷的浓度均有明显的季节变动,夏季和秋季的浓度高,冬季和春季浓度低。
There were marked seasonal variations in the concentrations of nitrogen and phosphorus in the interstitial water , and the higher concentrations were observed in summer and autumn and while the lower ones , in winter and spring .
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其中,施肥量和降雨是最基本的影响因子,而土壤氧化还原作用的差异,使麦季和稻季径流和渗漏水中氮形态和浓度表现出不同的特征。
From these , fertilizer and rainfall are the basic factors of effect , redox condition of the soil is different tent to form and concentration of nitrogen in the surface runoff and leaching are different in paddy and wheat season .
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农田退水作用的驱动下,铵态氮和总磷向下迁移的距离加长,污染风险加大。(4)垂直退水中氮磷流失量受灌溉量和施肥量的显著影响。
The further the travel distance of NH4 + - N and TP driven by agricultural return flow , . the higher the risk of pollution . ( 4 ) The loss of N and P were affected by the amount of irrigation and fertilizer applied .
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研究结果表明,稻季渗漏水中总氮(TN)浓度随时间呈下降趋势,其中,硝态氮(NO3&N)由泡田初期的10mg。
The results showed that total nitrogen ( TN ) in natural leaching water declined significantly during the paddy season .
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本研究以无机氮作为目标污染物,利用溶胶-凝胶法制备的掺杂金属离子的纳米TiO2和耦合光催化氧化还原反应来脱除水中无机氮作为研究的主要内容。
This research aimed at removal of inorganic nitrogen ( the target pollutant ) from water using photocatalysis and metal ion doped nano - TiO_2 , that were prepared by a sol-gel method .
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德国PASSAVANT公司完善生物法去除水中的氮和磷
Eliminating the Nitrogen and Phosphorus in Water with Improved Microbe Method in German PASSAVANT Company
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结果:水中总氮和总磷均超过地面水环境质量标准III级限值,水中藻细胞总数均值达到3×106个/L。
Results : The concentration of total nitrogen ( TN ) and total phosphorus ( TP ) in the Lake were higher than the III level guideline of surface water environmental quality standard . The average algae cell density was 3 × 106 / liter .
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采用溶胶-凝胶法制备了掺杂Ce3+、La3+、Ag+、Fe3+的TiO2光催化剂,以考察其薄膜和粉体形式对水中无机氮的光催化去除效果和活性。
Titanium dioxide photo-catalysts doped / co - doped with Ce3 + , La3 + / Ag + / Fe3 + by using the sol-gel method were prepared and tested to evaluate their photo-catalytic activities on nitrogen removal from solution which contained ammonium and nitrite .
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水中总氮测定分析方法的改进
Improvement of the Analytical Method of Total Nitrogen Determination in Water
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水中亚硝酸盐氮和空气中氮氧化物的示波极谱法测定
Polarographic determination of nitrite in water and nitrogen oxide in air
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高温氧化-化学发光检测法测定水中总氮
Determination of Total Nitrogen In Water Using High Temperature Oxidation Chemiluminescence Method
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测定水中总氮时影响空白吸光值的若干因素分析
Analysis of factors affecting absorbance of blank tests in determination of total nitrogen
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流动注射在线消解测定水中总氮的实验研究
Determination of Total Nitrogen in Water by FIA
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吉林市地下水中三氮迁移转化规律
Three . Migration and Transformation of Ammonia-nitrite-nitrates in Groundwater in the City of Jilin
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Pt/TiO2光催化氧化还原耦合反应脱除水中无机氮
Nitrogen Removal via Coupled Ammonia Oxidation and Nitrite Reduction Using Pt / TiO_2 and Photocatalysis