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- The COD, ammonia and total nitrogen (TN) removal efficiency were studied in the paper at low DO concentration iii a pilot-scale A/O nitrogen removal plant treating domestic wastewater. 摘要应用A/O中试装置处理实际生活污水,研究了低DO浓度下系统对有机物、氨氮和总氮的去除效果。
- Keywords Biological nitrogen removal;SDN Total nitrogen loss DO; 生物脱氮;同时硝化反硝化;总氮损失;溶解氧;
- Total nitrogen removal 总氮去除
- Determination of total nitrogen (Kjeldahl). 英文名称: Soils quality.
- Results showed that: the total removal rates were 40%-50% for the total nitrogen(TN),chemical oxygen demand(COD) and biochemical oxygen demand(BOD_5),60%-70% for total phosphorus(TP) and above 90% for NH_4-N. 结果表明该湿地对总氮(TN)、化学需氧量(COD)、生化需氧量(BOD5)的总去除率在40%25~50%25之间;总磷(TP)的去除率在60%25~70%25之间;氨氮(NH4-N)的去除率达90%25以上.
- The total nitrogen and the chlorophylls a concn.had certain relativity. 总氮和叶绿素浓度有一定的相关性;
- Subsurface flow type constructed wetland system used for domestic sewage treatment has average removal rate of COD and TP above 85% and 80% respectively,and removal rate of total nitrogen about 55%. 潜流式人工复合生态床对生活污水中COD和TP的平均去除率分别为85%25和80%25以上,对总氮去除率为55%25左右。
- The result of the experiment shows that not only the nitration of the system but also the removal of total nitrogen are improved sharply,which manifests that the method is economical and feasible. 试验结果表明,在原水力停留时间不变的条件下,投加悬浮填料,不仅系统硝化效果明显,而且总氮去除率也能得到显著提高。
- Nitrate nitrogen removal from ground water by autotrophic denitrification in a packed bed reactor. 固定床自养反硝化去除地下水中的硝酸盐氮。
- Nitrification is an important step to affect nitrogen removal in biological treatment processes. 生物脱氮系统中,硝化作用好坏是影响脱氮工艺效率的重要步骤。
- The methods for determining total nitrogen and basic nitrides content in diesel oil are described. 摘要介绍了测定柴油中总氮及碱性氮含量的各种方法。
- The influence of C/N ratio on the nitrogen removal was investigated in the suspended carrier biological reactor. 文章研究了C/N对悬浮填料生物反应器脱氮效果的影响。
- LY,with heterotrophic nitrogen removal ability,can biodegrade many kinds of toxic organic pollutants. LY降解去除有毒有机污染物的性能。
- Maize straw returning to the field can increase the soil total nitrogen and inorganic nitrogen content. 秸秆还田增加了土壤全氮和无机氮含量。
- Total Nitrogen in Lubricating Oils by Modified Kjeldahl Method, Method of Test for (05. 用改良的基耶达法测定润滑油中总氮量的试验方法(05。
- The proportion of aeration time and interruption time and the hydraulic retention time (HRT) has great effected the efficiency of nitrogen removal. 曝气/停曝时间比例和水力停留时间(HRT)等因子对浸没式微滤膜一氧化沟组合新工艺脱氮效果有较大的影响。
- Topdressing nitrogen treatment had no obvious effect to total nitrogen in soil, but it had a stronger effect to alkalined-nitrogen. 追氮处理对土壤全氮没有明显的影响,但对土壤大麦碱解氮的影响比较大。
- Compared with traditional activated sludge units,HBRs showed enhancement effects on organic loading rate,nitrogen removal and sludge dewaterability. 粉末活性炭与沸石是两种应用较为广泛的载体材料。
- But because the tests detect total nitrogen, from both protein and nonprotein alike, they do not truly measure protein. 但这些测试方法检测的是来自蛋白质和非蛋白质的全部氮含量,而不是真的直接测量蛋白质。
- There are significant correlation between nitrogen removal efficiency and the biomass of nitrifying bacteria in water and the plants. 氮去除效率与水体硝化细菌数和植物量有显著的相关性。