磷 a chemical element found in several different forms, including as a poisonous, pale yellow substance that shines in the dark and starts to burn as soon as it is placed in air
Wastewater treatment plants concentrate large quantities of phosphorus and ammonia in their sludge-handling streams. 一般在污水处理厂的污泥中会富集大量的磷和氨。
Life on Earth requires six basic ingredients carbon, hydrogen, nitrogen, oxygen, sulfur and phosphorus. 地球上的生命体需要六种基本元素碳、氢、氮、氧、硫和磷。
Nitrogen and phosphorus are two natural fertilizers-nutrients-that these ( and other plants) need. 氮磷是富含营养物质的两大天然肥料,正为这些树所需(其他树种也同样需要)。
■ Five basic elements: carbon, oxygen, hydrogen, phosphorus and nitrogen. ■五种基本元素:碳、氧、氢、磷和氮。
Bone gets its rigidity from calcium and phosphorus, materials found in seashells and teeth. 骨骼坚硬是由于钙和磷,这些物质同样存在于贝壳和牙齿中。
Choose a fertilizer that contains nitrogen, phosphorus, and potassium. 选择含有氮,磷和钾的肥料。
The effect of nitrite as electron acceptor on the denitrifying phosphorus removal process; 目的研究以硝酸氮和亚硝酸氮为电子受体时,污水中氮磷的去除效果。
Adsorption-desorption and competitive adsorption of arsenic and phosphorus in purple soil 紫色土中砷、磷的吸附-解吸和竞争吸附
It is an advanced technique of municipal wastewater, organic industry wastewater treatment and phosphorus removal in wastewater. 这是一种城市污水处理、有机工业废水处理和污水除磷的先进技术。
Both phosphorus and nitrogen are key nutrients for living organisms. 磷和氮都是活组织生长的关键营养物质。
Anaerobic-aerobic activated sludge technique in phosphorus removal and other complete techniques, and achieves a series of parameters. 厌氧一好氧活性污泥法除磷技术等成套技术,并取得了一系列参数。
The scientists then compared how much nitrogen and phosphorus were available in the soil. 科学家然后比较土壤里有多少氮和磷元素吸收了。
The method for synthesizing dialkyl phosphite from phosphorus trichloride was improved. 对用三氯化磷和醇合成亚磷酸二烷基酯方法进行了改进。
In the subsurface flow constructed wetland, insoluble phosphorus is removed by adsorption and deposition during wet season. 雨季时潜流人工湿地内发生了不溶性磷的吸附和沉积,实现了对磷的去除;
The removal of phosphorus and sulphur requires special conditions that only basic processes can meet. 除去磷和硫则需要特殊条件,这些条件只有碱性法才能满足。
The phosphomolybdate blue spectrophotometric determination of phosphorus in ferromanganese was studied. 研究了磷钼蓝光度法快速测定锰铁中磷的方法。
Researchers analysed nine years of data on phosphorus flows in cereals and legumes worldwide. 科学家分析了全世界谷物和豆类的磷流动的9年的数据。
The phosphorus fertilizer and farmyard manure had the best effects on maize yield in Drab Fluvo-aquic soil. 相关分析表明,在褐潮土上增施磷肥和有机肥对提高玉米产量具有重要的作用。
Effect of pH value and light on La-modified bentonite adsorption of phosphorus and nitrogen in water pH值和光照对镧改性膨润土吸附水中氮和磷的影响
They say much of the soil lacks enough phosphorus and nitrogen. 他们说当地的大部分土壤缺乏足够的磷和氮。
Study on humic acid activation of inorganic phosphorus in soil 腐植酸对土壤中无机磷活化效应的研究
Biological nutrient removal is a relatively low-cost means of removing nitrogen and phosphorus from wastewater. 在对废水进行脱氮除磷时,去除生物营养素是一种相对成本较低的方法。
To investigate substrates for phosphorus removal potential for constructed wetland, many different substrates have been reviewed. 综述了不同基质对于人工湿地净化磷素的潜能的研究结果。
Based on this, the effect of N/ P ratio on nitrogen and phosphorus removal was investigated. 在此基础上,考察了N/P值对系统脱氮除磷效果的影响。
In this paper, the solubility of phosphorus pentafluoride in aether has also been studied. 本文还研究了五氟化磷在乙醚中的溶解度。
This is a review of the progress and current studies of phosphorus removal from wastewater by adsorption. 本文叙述了利用吸附原理进行废水除磷的研究进展。
Effects of Different Nitrogen, Phosphorus and Potassium Fertilizers on Availability of Soil Cadmium and Cadmium Uptake by Wheat 不同氮磷钾肥对土壤镉有效性和小麦吸收镉的影响
It has become necessary to treat and recover nitrogen and phosphorus for sewage treatment plants. 污水处理厂氮磷的处理和回收已经成为必然。
The rhizosphere of plants in the system enhanced the capacity of nitrogen and phosphorus removals. 植被的根际效应也提高了系统脱氮除磷的能力。
The nitrogen and phosphorus are main non-point sources pollutants in the water of Mopanshan reservoir. 氮和磷是磨盘山水库水体非点源污染最主要的污染物。
a multivalent nonmetallic element of the nitrogen family that occurs commonly in inorganic phosphate rocks and as organic phosphates in all living cells