昆虫产生的氨比猪和家禽少,它们产生的甲烷比家畜少十倍,而产生的一氧化二氮比家畜少三百倍。
Insects produce less ammonia than pig and poultry farming, ten times less methane than livestock, and 300 times less nitrous oxide.
生物炭在澳大利亚使用后,几个月后,农田的碳排放量剧减70%多,与此同时,它还能阻止土壤里的氨氮溶入水体。
Biochar applied to Australian fields and left for a number of months cut such emissions by more than 70 percent as well as preventing nitrogen and ammonia from leaching out of the soil in water.
因此,我国及世界上许多国家在饮用水标准中对氨氮含量都有严格的限制。
Therefore, our country and many other countries of the world established strict limitation of ammonia-nitrogen in drinking water criterion.
生物预处理是去除微污染源水中氨氮的一种经济有效的方法。
Biological pretreatment technology is an economic and efficient method to remove ammonia - nitrogen in micro - polluted raw water.
该工艺具有工艺简单、适合于处理微污染水,能够有效地去除有机物和氨氮。
This simple technique may be used to treat micro-polluted raw water and can remove organic pollutants and ammonia efficiently.
硝酸盐氮的最终还原产物为氨氮。
The final reduction product of nitrate nitrogen is ammonia nitrogen.
评价结果表明:该段主要污染指标高锰酸盐指数、五日生化需氧量、氨氮。
The result indicated that the main pollution target of this section is permanganate index, five days' biochemical oxygen demand and ammonia nitrogen.
如何有效地去除废水中的氨氮是水污染防治界研究的重点和难点之一。
How to achieve high removal rate of ammonium is the emphasis to researchers.
在模拟中水中,随着氨氮浓度的增加,316不锈钢的孔蚀电位减小。
The pitting corrosion potential of 316 stainless steel increases along with the ammonia nitrogen density decrease.
水中钙离子的存在,在一定程度上会降低氨氮的去除效果,但同时提高有机物的去除效果;
When calcium existed in water, the removal of ammonia-nitrogen was decreased to a limited extent, with a higher organic removal.
磷酸铵镁(MAP)技术是一种有效去除废水中高浓度氨氮和高浓度磷酸盐的技术。
The technology of magnesium ammonium phosphate(MAP) is one of effective removal of high strength ammonia nitrogen and phosphate in wastewater.
有效分解水体中的多余有机物、氨、氮、磷等物质,达到净化水质的目的。
Decompose unnecessary organic matters, such as ammonia, nitrogen, phosphorus, to achieve the purpose of purifying water quality.
氨氮负荷是影响反应器硝化性能的直接因素。
The direct affected factor of nitrification was ammonia nitrogen loading.
反冲洗周期对氨氮的去除率有较大影响。
Backwash cycle has more effect on ammonia nitrogen removal rate.
目的:筛选、分离能够用于治理氨氮污染和军事坑道生活污物、污水的硝化菌。
Objective: to screen nitrobacter that could be used to treat ammonia nitrogen pollution, dejecta and sewage in military tunnel.
此外,在低温条件下提高水力负荷会导致对有机物和氨氮去除率的下降。
Moreover, the increase of hydraulic loading will lead to the decline of the removal rate of organics and ammonia nitrogen.
试验结果表明:合理的间歇时间能提高反应器对有机物和氨氮的去除效果。
The results show that reasonable intermittence time can improve the removal efficiency.
通过静态吸附实验和动态过滤实验研究复合凹凸棒滤料对氨氮和有机物的去除效果。
The removal effect of ammonia nitrogen and organic material with composite attapulgite filter by static adsorption experiment and dynamic filtration experiment was studied.
试验表明,复合微生物制剂对改善水质,降低水体中的氨氮具有明显作用。
The results showed that the compound microorganism preparation improved water quality and decreased significantly the ammonia nitrogen in water.
通过静态试验、动态试验和再生试验研究了天然斜发沸石吸附氨氮的热力学性质、再生性能和影响因素。
The absorption capability, the regeneration capability and the influencing factors of the clinoptilolite to ammonia nitrogen are studied through static state test , dynamic test and regenerative test.
对中砂的中低氨氮进水系统,通过缩短水力负荷周期,会使去除效果得到明显改善。
For the medium sand system of the low ammonia nitrogen, by shortening HLC, the removal effect of the system is significantly improved.
结果表明填料的氨氮吸附量受填料的种类、使用时间、填充方式和填充位置的影响。
Results show that the ammonia and nitrogen adsorption amount of packing is affected by the kinds, service time, filling mode and filling position.
水体与底泥中大量氨化菌可能通过转氨作用产生的氨氮积累在水体中。
A mass of ammonifiers in water body and sediment can make ammonia accumulate in water body through ammonification.
实验结果表明,投加沸石粉强化混凝能够改善絮凝性能,显著提高有机物、氨氮的去除效果。
The experiment results show that the powdered zeolite can improve the flocculation behaviors, remarkably enhancing the effect of removing organic matter and ammonia nitrogen.
不同比例因素制备的固定化硝化细菌小球去除氨氮的效率差别很大。
The efficiency of removing ammonium nitrogen from wastewater is different by immobilized nitrifying bacteria making with different ratio.
通过试验发现HRT、进水氨氮和外碳源对生物硝化和反硝化有重要影响。
It is found that HRT, influent ammonia nitrogen and external carbon source have significant effect on biological nitrification and denitrification.
氨氮和磷酸盐是水质富营养化的重要来源。
Ammonium and phosphate are important causes of the eutrophication of water.
目的:建立与生活饮用水氨氮测定相匹配的方法来检测工作场所中空气氨。
Objective: An improved method of ammonia nitrogen in drinking water was developed for the ammonia in workplace air.
而随着氨氮初始浓度的增加,其吸附去除率是下降的。
But as the increment of the beginning concentration of ammonia-nitrogen, the adsorption rate descends.
而随着氨氮初始浓度的增加,其吸附去除率是下降的。
But as the increment of the beginning concentration of ammonia-nitrogen, the adsorption rate descends.
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